Setting object position is propagated to the physics simulation even for dynmamic objects.

The velocity is also reset to 0, which makes sense after forcing a dynamic object position. Known issues: - in interactive mode, changing an object position by rna causes a simulation step - setting any part of the object position or orientation causes the full matrix to be applied to physics => missing true rigid body API
Interactive mode: new scene.flag SCE_INTERACTIVE to update the depsgraph without frame change but running physics.
2018-10-19 10:08:59 +02:00 · 2018-10-11 14:06:34 +02:00 · 2018-10-10 18:13:34 +02:00
14462 changed files with 2469611 additions and 3199468 deletions
--- a/.arcconfig
+++ b/.arcconfig
@@ -1,8 +1,7 @@
 {
 	"project_id" : "Blender",
 	"conduit_uri" : "https://developer.blender.org/",
-	"phabricator.uri" : "https://developer.blender.org/",
-	"git.default-relative-commit" : "origin/master",
+	"git.default-relative-commit" : "origin/blender2.8",
 	"arc.land.update.default" : "rebase",
-	"arc.land.onto.default" : "master"
+	"arc.land.onto.default" : "blender2.8"
 }
--- a/.clang-format
+++ b/.clang-format
@@ -1,278 +0,0 @@
-
-# Configuration of clang-format
-# =============================
-#
-# Tested to work with versions: 8 to 11.
-
-# This causes parameters on continuations to align to the opening brace.
-#
-#   like_this_long_name(parameter_one,
-#                       parameter_two,
-#                       parameter_three);
-#
-AlignAfterOpenBracket: 'Align'
-
-# Disallow short functions on one line; break them up.
-AllowShortBlocksOnASingleLine: false
-
-# These two settings trigger stacking of parameters in most cases; this is
-# easier to read and also makes diffs easier to read (since an added or removed
-# parameter is obvious). For example, function calls will look like this:
-#
-#   like_this_long_name(parameter_one,
-#                       parameter_two,
-#                       parameter_three,
-#                       parameter_four,
-#                       parameter_five,
-#                       parameter_six);
-#
-# Instead of:
-#
-#   like_this_long_name(parameter_one, parameter_two, parameter_three, parameter_four,
-#                       parameter_five, parameter_six);
-#
-BinPackArguments: false
-BinPackParameters: false
-
-# Line width (don't exceed 100).
-ColumnLimit: 99
-
-# Cause initializer lists to have one member initialized per line, in the case
-# that all initializers can't fit on a single line.
-ConstructorInitializerAllOnOneLineOrOnePerLine: true
-
-# Indent the : after a constructor. For example:
-#
-#   explicit foo_class ()
-#       : member1_(5)
-#   {
-#   }
-#
-ConstructorInitializerIndentWidth: 4
-
-# Make access modifier slightly more visible.
-AccessModifierOffset: -1
-
-# This will unfortunately use spaces in some cases where it's not desired (like
-# function calls) but the overall result is better since it will allow
-# alignment to work properly with different tab width settings.
-ContinuationIndentWidth: 4
-
-# This tries to match Blender's style as much as possible. One
-BreakBeforeBraces: Custom
-BraceWrapping: {
-    AfterClass: 'false'
-    AfterControlStatement: 'false'
-    AfterEnum : 'false'
-    AfterFunction : 'true'
-    AfterNamespace : 'false'
-    AfterStruct : 'false'
-    AfterUnion : 'false'
-    BeforeCatch : 'true'
-    BeforeElse : 'true'
-    IndentBraces : 'false'
-    AfterObjCDeclaration: 'true'
-}
-
-# For switch statements, indent the cases.
-IndentCaseLabels: true
-
-# Indent after the hash inside preprocessor directives
-IndentPPDirectives: AfterHash
-
-BreakBeforeTernaryOperators: false
-
-SpaceAfterTemplateKeyword: false
-
-# Handy comment at the end of each C++ name space.
-FixNamespaceComments: true
-
-# Use "if (...)" instead of "if(...)", but have function calls like foo().
-SpaceBeforeParens: ControlStatements
-SpaceInEmptyParentheses: false
-
-# Use two spaces before trailing comments, for example
-#
-#   foo = bar;  // comment
-#
-# Note that this doesn't work for C-style comments.
-SpacesBeforeTrailingComments: 2
-
-# Reflow comments, developers must disable formatting as with code to override this.
-ReflowComments: true
-
-# Never use tabs for indentation.
-# Note: TabWidth and IndentWidth must be the same, or strange things happen.
-UseTab: Never
-TabWidth: 2
-IndentWidth: 2
-
-# Add a big penalty on breaking after the return type of functions. For example,
-#
-#   static void foo(...)
-#
-# Instead of:
-#
-#   static void
-#   foo(very long content here that maybe could be stacked)
-#
-PenaltyReturnTypeOnItsOwnLine: 10000
-
-# Avoid having function calls broken onto a new line:
-#
-#   int a = foo(
-#       long, list, of, many, params);
-#
-# Instead of:
-#
-#   int a =
-#       foo(long, list, of, many, params);
-#
-PenaltyBreakAssignment: 100
-
-AllowShortFunctionsOnASingleLine: None
-
-SortIncludes: true
-
-# Don't right align escaped newlines to the right because we have a wide default
-AlignEscapedNewlines: DontAlign
-
-# Always break:
-#
-#   const char *foo =
-#       "multi"
-#       "line";
-#
-# Instead of:
-#
-#   const char *foo = "multi"
-#                     "line";
-#
-AlwaysBreakBeforeMultilineStrings: true
-
-# We don't want literal strings to break,
-# however clang-format seems to ignore this (sigh).
-PenaltyBreakString: 1000000
-
-# There are macros in Blender for custom for loops; tell Clang to treat them
-# like loops rather than an expression, and so put the { on the same line.
-#
-# To find these use multi-line regex search:
-# "^\s+[A-Z][A-Z0-9_]+\s*\([^\n]*\)\n\s*\{"
-ForEachMacros:
-  - BEGIN_ANIMFILTER_SUBCHANNELS
-  - BKE_pbvh_vertex_iter_begin
-  - BKE_pbvh_face_iter_begin
-  - BLI_FOREACH_SPARSE_RANGE
-  - BLI_SMALLSTACK_ITER_BEGIN
-  - BMO_ITER
-  - BMO_ITER_INDEX
-  - BMW_ITER
-  - BM_FACES_OF_VERT_ITER_BEGIN
-  - BM_ITER_BPY_BM_SEQ
-  - BM_ITER_ELEM
-  - BM_ITER_ELEM_INDEX
-  - BM_ITER_MESH
-  - BM_ITER_MESH_INDEX
-  - BM_ITER_MESH_MUTABLE
-  - BM_LOOPS_OF_VERT_ITER_BEGIN
-  - BOOST_FOREACH
-  - CTX_DATA_BEGIN
-  - CTX_DATA_BEGIN_WITH_ID
-  - DEG_OBJECT_ITER_BEGIN
-  - DEG_OBJECT_ITER_FOR_RENDER_ENGINE_BEGIN
-  - DRW_ENABLED_ENGINE_ITER
-  - DRIVER_TARGETS_LOOPER_BEGIN
-  - DRIVER_TARGETS_USED_LOOPER_BEGIN
-  - FOREACH_BASE_IN_EDIT_MODE_BEGIN
-  - FOREACH_BASE_IN_MODE_BEGIN
-  - FOREACH_BEGIN
-  - FOREACH_COLLECTION_BEGIN
-  - FOREACH_COLLECTION_OBJECT_RECURSIVE_BEGIN
-  - FOREACH_COLLECTION_VISIBLE_OBJECT_RECURSIVE_BEGIN
-  - FOREACH_EDIT_OBJECT_BEGIN
-  - FOREACH_MAIN_ID_BEGIN
-  - FOREACH_MAIN_LISTBASE_BEGIN
-  - FOREACH_MAIN_LISTBASE_ID_BEGIN
-  - FOREACH_MESH_BUFFER_CACHE
-  - FOREACH_NODETREE_BEGIN
-  - FOREACH_OBJECT_BEGIN
-  - FOREACH_OBJECT_FLAG_BEGIN
-  - FOREACH_OBJECT_IN_EDIT_MODE_BEGIN
-  - FOREACH_OBJECT_IN_MODE_BEGIN
-  - FOREACH_OBJECT_RENDERABLE_BEGIN
-  - FOREACH_PCHAN_SELECTED_IN_OBJECT_BEGIN
-  - FOREACH_PCHAN_VISIBLE_IN_OBJECT_BEGIN
-  - FOREACH_SCENE_COLLECTION_BEGIN
-  - FOREACH_SCENE_OBJECT_BEGIN
-  - FOREACH_SELECTED_BASE_BEGIN
-  - FOREACH_SELECTED_BEZT_BEGIN
-  - FOREACH_SELECTED_EDITABLE_OBJECT_BEGIN
-  - FOREACH_SELECTED_OBJECT_BEGIN
-  - FOREACH_TRANS_DATA_CONTAINER
-  - FOREACH_VIEW_LAYER_TO_RENDER_BEGIN
-  - FOREACH_VISIBLE_BASE_BEGIN
-  - FOREACH_VISIBLE_OBJECT_BEGIN
-  - GHASH_FOREACH_BEGIN
-  - GHASH_ITER
-  - GHASH_ITER_INDEX
-  - GPU_SELECT_LOAD_IF_PICKSEL_LIST
-  - GP_EDITABLE_STROKES_BEGIN
-  - GP_EVALUATED_STROKES_BEGIN
-  - GSET_FOREACH_BEGIN
-  - GSET_ITER
-  - GSET_ITER_INDEX
-  - ITER_BEGIN
-  - ITER_PIXELS
-  - ITER_SLOTS
-  - ITER_SLOTS_BEGIN
-  - LOOP_EDITED_POINTS
-  - LOOP_KEYS
-  - LOOP_POINTS
-  - LOOP_SELECTED_KEYS
-  - LOOP_SELECTED_POINTS
-  - LOOP_TAGGED_KEYS
-  - LOOP_TAGGED_POINTS
-  - LOOP_UNSELECTED_POINTS
-  - LOOP_VISIBLE_KEYS
-  - LOOP_VISIBLE_POINTS
-  - LISTBASE_CIRCULAR_BACKWARD_BEGIN
-  - LISTBASE_CIRCULAR_FORWARD_BEGIN
-  - LISTBASE_FOREACH
-  - LISTBASE_FOREACH_BACKWARD
-  - LISTBASE_FOREACH_MUTABLE
-  - LISTBASE_FOREACH_BACKWARD_MUTABLE
-  - LISTBASE_FOREACH_INDEX
-  - MAN_ITER_AXES_BEGIN
-  - NODE_INSTANCE_HASH_ITER
-  - NODE_SOCKET_TYPES_BEGIN
-  - NODE_TREE_TYPES_BEGIN
-  - NODE_TYPES_BEGIN
-  - PIXEL_LOOPER_BEGIN
-  - PIXEL_LOOPER_BEGIN_CHANNELS
-  - RENDER_PASS_ITER_BEGIN
-  - RNA_BEGIN
-  - RNA_PROP_BEGIN
-  - RNA_STRUCT_BEGIN
-  - RNA_STRUCT_BEGIN_SKIP_RNA_TYPE
-  - SCULPT_VERTEX_DUPLICATES_AND_NEIGHBORS_ITER_BEGIN
-  - SCULPT_VERTEX_NEIGHBORS_ITER_BEGIN
-  - SEQ_ALL_BEGIN
-  - SEQ_ITERATOR_FOREACH
-  - SURFACE_QUAD_ITER_BEGIN
-  - foreach
-  - ED_screen_areas_iter
-  - SLOT_PROBING_BEGIN
-  - SET_SLOT_PROBING_BEGIN
-  - MAP_SLOT_PROBING_BEGIN
-  - VECTOR_SET_SLOT_PROBING_BEGIN
-  - WL_ARRAY_FOR_EACH
-  - FOREACH_SPECTRUM_CHANNEL
-
-StatementMacros:
-  - PyObject_HEAD
-  - PyObject_VAR_HEAD
-  - ccl_gpu_kernel_postfix
-
-MacroBlockBegin: "^OSL_CLOSURE_STRUCT_BEGIN$"
-MacroBlockEnd: "^OSL_CLOSURE_STRUCT_END$"
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,53 +0,0 @@
-# The warnings below are disabled because they are too pedantic and not worth fixing.
-# Some of them will be enabled as part of the Clang-Tidy task, see T78535.
-
-# NOTE: No comments in the list below is allowed. Clang-tidy will ignore items after comments in the lists flag list.
-# This is because the comment is not a valid list item and it will stop parsing flags if a list item is a comment.
-Checks:  >
-  -*,
-  readability-*,
-  -readability-uppercase-literal-suffix,
-  -readability-magic-numbers,
-  -readability-isolate-declaration,
-  -readability-convert-member-functions-to-static,
-  -readability-implicit-bool-conversion,
-  -readability-avoid-const-params-in-decls,
-  -readability-simplify-boolean-expr,
-  -readability-make-member-function-const,
-  -readability-suspicious-call-argument,
-  -readability-redundant-member-init,
-  -readability-misleading-indentation,
-  -readability-use-anyofallof,
-  -readability-identifier-length,
-
-  -readability-function-cognitive-complexity,
-
-  bugprone-*,
-  -bugprone-narrowing-conversions,
-  -bugprone-unhandled-self-assignment,
-  -bugprone-branch-clone,
-  -bugprone-macro-parentheses,
-  -bugprone-reserved-identifier,
-  -bugprone-easily-swappable-parameters,
-  -bugprone-implicit-widening-of-multiplication-result,
-
-  -bugprone-sizeof-expression,
-  -bugprone-integer-division,
-
-  -bugprone-redundant-branch-condition,
-
-  -bugprone-suspicious-include,
-
-  modernize-*,
-  -modernize-use-auto,
-  -modernize-use-trailing-return-type,
-  -modernize-avoid-c-arrays,
-  -modernize-use-nodiscard,
-  -modernize-loop-convert,
-  -modernize-pass-by-value,
-  -modernize-raw-string-literal,
-  -modernize-return-braced-init-list
-
-CheckOptions:
-  - key: modernize-use-default-member-init.UseAssignment
-    value: 1
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,18 +3,18 @@
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
-indent_style = space
-indent_size = 2
-max_line_length = 99
+indent_style = tab
+indent_size = 4
+max_line_length = 120

 # CMake & Text
 [*.{cmake,txt}]
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
-indent_style = space
-indent_size = 2
-max_line_length = 99
+indent_style = tab
+indent_size = 4
+max_line_length = 120

 # Python
 [*.py]
@@ -30,16 +30,7 @@ max_line_length = 120
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
-indent_style = space
-indent_size = 2
-max_line_length = 99
-
-# Tom's Obvious Minimal Language
-[*.toml]
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
+indent_style = tab
 indent_size = 4
 max_line_length = 120

@@ -51,12 +42,3 @@ insert_final_newline = true
 indent_style = space
 indent_size = 3
 max_line_length = 120
-
-# Makefile
-[{Makefile,GNUmakefile}]
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = tab
-indent_size = 4
-max_line_length = 120
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,104 +0,0 @@
-# git config blame.ignoreRevsFile .git-blame-ignore-revs
-#
-# After running the above, commits listed in this file will be
-# ignored by git blame. The blame will be shifted to the person
-# who edited the line(s) before the ignored commit.
-#
-# To disable this ignorance for a command, run as follows
-# git blame --ignore-revs-file="" <other options>
-#
-# Changes that belong here:
-# - Massive comment, doxy-sections, or spelling corrections.
-# - Clang-format, PEP8 or other automated changes which are *strictly* "no functional change".
-# - Several commits should be added to this list at once, because adding
-#   one extra commit (to edit this file) after every cleanup is noisy.
-# - No clang-tidy changes.
-#
-# Note:
-# - The comment above the SHA should be the first line of the commit.
-# - It is fine to pack together similar commits if they have the same explanatory comment.
-# - Use only 40 character git SHAs; not smaller ones, not prefixed with rB.
-#
-# https://git-scm.com/docs/git-blame/2.23.0
-
-# white space commit. (2 spaces -> tab).
-0a3694cd6ebec710da7110e9f168a72d47c71ee0
-
-# Cycles: Cleanup, spacing after preprocessor
-cb4b5e12abf1fc6cf9ffc0944e0a1bc406286c63
-
-# ClangFormat: apply to source, most of intern
-e12c08e8d170b7ca40f204a5b0423c23a9fbc2c1
-
-# Code Style: use "#pragma once" in source directory
-91694b9b58ab953f3b313be9389cc1303e472fc2
-
-# Code Style: use "#pragma once" in some newer headers
-8198dbb888856b8c11757586df02aca15f132f90
-
-# Code Style: use "#pragma once" in intern/ghost
-1b1129f82a9cf316b54fbc025f8cfcc1a74b8589
-
-# Cleanup: mostly comments, use doxy syntax & typos
-e0cb02587012b4b2f4b18363dc7d0a7da2c02093
-
-# Cleanup: use C comments for descriptive text
-2abfcebb0eb7989e3d1e7d03f37ecf5c088210af
-
-# use lowercase for cmake builtin names and macros, remove contents in else() and endif() which is no longer needed.
-afacd184982e58a9c830a3d5366e25983939a7ba
-
-# Spelling: It's Versus Its
-3a7fd309fce89213b0224b3c6807adb2d1fe7ca8
-
-# Spelling: Then Versus Than
-d1eefc421544e2ea632fb35cb6bcaade4c39ce6b
-
-# Spelling: Miscellaneous
-84ef3b80de4915a24a9fd2fd214d0fa44e59b854
-
-# Spelling: Loose Versus Lose
-c0a6bc19794c69843c38451c762e91bc10136e0f
-
-# Spelling: Apart Versus A Part
-3d26cd01b9ba6381eb165e11536345ae652dfb41
-
-# Cleanup: use 2 space indentation for CMake
-3076d95ba441cd32706a27d18922a30f8fd28b8a
-
-# Cleanup: use over-line for doxy comments
-4b188bb08cf5aaae3c68ab57bbcfa037eef1ac10
-
-# Cleanup: General comment style clean up of graph_edit.c and fcurve.c
-0105f146bb40bd609ccbda3d3f6aeb8e14ad3f9e
-
-# Cleanup: pep8 (indentation, spacing, long lines)
-41d2d6da0c96d351b47acb64d3e0decdba16cb16
-
-# Cleanup: pep8, blank lines
-bab9de2a52929fe2b45ecddb1eb09da3378e303b
-
-# Cleanup: PEP8 for python changes
-1e7e94588daa66483190f45a9de5e98228f80e05
-
-# GPencil: Cleanup pep8
-a09cc3ee1a99f2cd5040bbf30c8ab8c588bb2bb1
-
-# Cleanup: trailing space, remove tabs, pep8
-c42a6b77b52560d257279de2cb624b4ef2c0d24c
-
-# Cleanup: use C style doxygen comments
-8c1726918374e1d2d2123e17bae8db5aadde3433
-
-# Cleanup: use doxy sections for imbuf
-c207f7c22e1439e0b285fba5d2c072bdae23f981
-
-# Cleanup: clang-format
-c4d8f6a4a8ddc29ed27311ed7578b3c8c31399d2
-b5d310b569e07a937798a2d38539cfd290149f1c
-8c846cccd6bdfd3e90a695fabbf05f53e5466a57
-4eac03d821fa17546f562485f7d073813a5e5943
-1166110a9d66af9c5a47cee2be591f50fdc445e8
-
-# Cleanup: clang-format.
-40d4a4cb1a6b4c3c2a486e8f2868f547530e0811
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,5 +0,0 @@
-This repository is only used as a mirror of git.blender.org. Blender development happens on
-https://developer.blender.org.
-
-To get started with contributing code, please see:
-https://wiki.blender.org/wiki/Process/Contributing_Code
--- a/.github/stale.yml
+++ b/.github/stale.yml
@@ -1,22 +0,0 @@
-# Configuration for probot-stale - https://github.com/probot/stale
-# This file is used on Blender's GitHub mirror to automatically close any pull request
-# and invite contributors to join the official development platform on blender.org
-
-# Number of days of inactivity before an Issue or Pull Request becomes stale
-daysUntilStale: 1
-
-# Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
-# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
-daysUntilClose: 1
-
-# Label to use when marking as stale
-staleLabel: stale
-
-# Comment to post when closing a stale Issue or Pull Request.
-closeComment: >
-  This issue has been automatically closed, because this repository is only
-  used as a mirror of git.blender.org. Blender development happens on
-  developer.blender.org.
-
-  To get started contributing code, please read:
-  https://wiki.blender.org/wiki/Process/Contributing_Code
--- a/.gitignore
+++ b/.gitignore
@@ -11,10 +11,6 @@ __pycache__/
 *.swo
 *#

-# Indexes for emacs, vi & others
-TAGS
-tags
-
 # QtCreator
 CMakeLists.txt.user

@@ -40,12 +36,3 @@ Desktop.ini

 # in-source lib downloads
 /build_files/build_environment/downloads
-
-# in-source buildbot signing configuration
-/build_files/buildbot/codesign/config_server.py
-
-# smoke simulation noise tile (generated)
-waveletNoiseTile.bin
-
-# testing environment
-/Testing
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,7 @@
 [submodule "release/scripts/addons"]
 	path = release/scripts/addons
 	url = ../blender-addons.git
-	branch = master
+	branch = blender2.8
 	ignore = all
 [submodule "release/scripts/addons_contrib"]
 	path = release/scripts/addons_contrib
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
--- a/583
+++ b/583
@@ -1,171 +1,43 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# -*- mode: gnumakefile; tab-width: 4; indent-tabs-mode: t; -*-
+# vim: tabstop=4
+#
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####

 # This Makefile does an out-of-source CMake build in ../build_`OS`_`CPU`
 # eg:
 #   ../build_linux_i386
 # This is for users who like to configure & build blender with a single command.

-define HELP_TEXT
-
-Blender Convenience Targets
-   Provided for building Blender (multiple targets can be used at once).
-
-   * debug:         Build a debug binary.
-   * full:          Enable all supported dependencies & options.
-   * lite:          Disable non essential features for a smaller binary and faster build.
-   * release:       Complete build with all options enabled including CUDA and Optix, matching the releases on blender.org
-   * headless:      Build without an interface (renderfarm or server automation).
-   * cycles:        Build Cycles standalone only, without Blender.
-   * bpy:           Build as a python module which can be loaded from python directly.
-   * developer:     Enable faster builds, error checking and tests, recommended for developers.
-   * ninja:         Use ninja build tool for faster builds.
-   * ccache:        Use ccache for faster rebuilds.
-
-   Note: when passing in multiple targets their order is not important.
-   So for a fast build you can for e.g. run 'make lite ccache ninja'.
-   Note: passing the argument 'BUILD_DIR=path' when calling make will override the default build dir.
-   Note: passing the argument 'BUILD_CMAKE_ARGS=args' lets you add cmake arguments.
-
-Other Convenience Targets
-   Provided for other building operations.
-
-   * config:        Run cmake configuration tool to set build options.
-   * deps:          Build library dependencies (intended only for platform maintainers).
-
-                    The existence of locally build dependencies overrides the pre-built dependencies from subversion.
-                    These must be manually removed from '../lib/' to go back to using the pre-compiled libraries.
-
-Project Files
-   Generate project files for development environments.
-
-   * project_qtcreator:     QtCreator Project Files.
-   * project_netbeans:      NetBeans Project Files.
-   * project_eclipse:       Eclipse CDT4 Project Files.
-
-Package Targets
-
-   * package_archive:   Build an archive package.
-
-Testing Targets
-   Not associated with building Blender.
-
-   * test:
-     Run automated tests with ctest.
-
-Static Source Code Checking
-   Not associated with building Blender.
-
-   * check_cppcheck:        Run blender source through cppcheck (C & C++).
-   * check_clang_array:     Run blender source through clang array checking script (C & C++).
-   * check_deprecated:      Check if there is any deprecated code to remove.
-   * check_splint:          Run blenders source through splint (C only).
-   * check_sparse:          Run blenders source through sparse (C only).
-   * check_smatch:          Run blenders source through smatch (C only).
-   * check_descriptions:    Check for duplicate/invalid descriptions.
-   * check_licenses:        Check license headers follow the SPDX license specification,
-                            using one of the accepted licenses in 'doc/license/SPDX-license-identifiers.txt'
-                            Append with 'SHOW_HEADERS=1' to show all unique headers
-                            which can be useful for spotting license irregularities.
-   * check_cmake:           Runs our own cmake file checker which detects errors in the cmake file list definitions.
-   * check_pep8:            Checks all Python script are pep8 which are tagged to use the stricter formatting.
-   * check_mypy:            Checks all Python scripts using mypy,
-                            see: source/tools/check_source/check_mypy_config.py scripts which are included.
-
-Spell Checkers
-   This runs the spell checker from the developer tools repositor.
-
-   * check_spelling_c:      Check for spelling errors (C/C++ only),
-   * check_spelling_osl:    Check for spelling errors (OSL only).
-   * check_spelling_py:     Check for spelling errors (Python only).
-
-   Note: an additional word-list is maintained at: 'source/tools/check_source/check_spelling_c_config.py'
-
-   Note: that spell checkers can take a 'CHECK_SPELLING_CACHE' filepath argument,
-   so re-running does not need to re-check unchanged files.
-
-   Example:
-      make check_spelling_c CHECK_SPELLING_CACHE=../spelling_cache.data
-
-Utilities
-   Not associated with building Blender.
-
-   * icons:
-     Updates PNG icons from SVG files.
-
-     Optionally pass in variables: 'BLENDER_BIN', 'INKSCAPE_BIN'
-     otherwise default paths are used.
-
-     Example
-        make icons INKSCAPE_BIN=/path/to/inkscape
-
-   * icons_geom:
-     Updates Geometry icons from BLEND file.
-
-     Optionally pass in variable: 'BLENDER_BIN'
-     otherwise default paths are used.
-
-     Example
-        make icons_geom BLENDER_BIN=/path/to/blender
-
-   * source_archive:
-     Create a compressed archive of the source code.
-
-   * source_archive_complete:
-     Create a compressed archive of the source code and all the libraries of dependencies.
-
-   * update:
-     Updates git and all submodules and svn.
-
-   * update_code:
-     Updates git and all submodules but not svn.
-
-   * format:
-     Format source code using clang-format & autopep8 (uses PATHS if passed in). For example::
-
-        make format PATHS="source/blender/blenlib source/blender/blenkernel"
-
-Environment Variables
-
-   * BUILD_CMAKE_ARGS:      Arguments passed to CMake.
-   * BUILD_DIR:             Override default build path.
-   * PYTHON:                Use this for the Python command (used for checking tools).
-   * NPROCS:                Number of processes to use building (auto-detect when omitted).
-   * AUTOPEP8:              Command used for Python code-formatting (used for the format target).
-
-Documentation Targets
-   Not associated with building Blender.
-
-   * doc_py:        Generate sphinx python api docs.
-   * doc_doxy:      Generate doxygen C/C++ docs.
-   * doc_dna:       Generate blender file format reference.
-   * doc_man:       Generate manpage.
-
-Information
-
-   * help:              This help message.
-   * help_features:     Show a list of optional features when building.
-
-endef
-# HELP_TEXT (end)
-
-# This makefile is not meant for Windows
-ifeq ($(OS),Windows_NT)
-	$(error On Windows, use "cmd //c make.bat" instead of "make")
-endif

 # System Vars
 OS:=$(shell uname -s)
 OS_NCASE:=$(shell uname -s | tr '[A-Z]' '[a-z]')
-CPU:=$(shell uname -m)
+# CPU:=$(shell uname -m)  # UNUSED


 # Source and Build DIR's
 BLENDER_DIR:=$(shell pwd -P)
 BUILD_TYPE:=Release
-BLENDER_IS_PYTHON_MODULE:=

-# CMake arguments, assigned to local variable to make it mutable.
-CMAKE_CONFIG_ARGS := $(BUILD_CMAKE_ARGS)
+ifndef BUILD_CMAKE_ARGS
+	BUILD_CMAKE_ARGS:=
+endif

 ifndef BUILD_DIR
 	BUILD_DIR:=$(shell dirname "$(BLENDER_DIR)")/build_$(OS_NCASE)
@@ -181,14 +53,9 @@ endif
 ifndef DEPS_INSTALL_DIR
 	DEPS_INSTALL_DIR:=$(shell dirname "$(BLENDER_DIR)")/lib/$(OS_NCASE)

-	# Add processor type to directory name, except for darwin x86_64
-	# which by convention does not have it.
-	ifeq ($(OS_NCASE),darwin)
-		ifneq ($(CPU),x86_64)
-			DEPS_INSTALL_DIR:=$(DEPS_INSTALL_DIR)_$(CPU)
-		endif
-	else
-		DEPS_INSTALL_DIR:=$(DEPS_INSTALL_DIR)_$(CPU)
+	ifneq ($(OS_NCASE),darwin)
+		# Add processor type to directory name
+		DEPS_INSTALL_DIR:=$(DEPS_INSTALL_DIR)_$(shell uname -p)
 	endif
 endif

@@ -197,116 +64,44 @@ ifndef PYTHON
 	PYTHON:=python3
 endif

-# For macOS python3 is not installed by default, so fallback to python binary
-# in libraries, or python 2 for running make update to get it.
-ifeq ($(OS_NCASE),darwin)
-	ifeq (, $(shell command -v $(PYTHON)))
-		PYTHON:=$(DEPS_INSTALL_DIR)/python/bin/python3.10
-		ifeq (, $(shell command -v $(PYTHON)))
-			PYTHON:=python
-		endif
-	endif
-endif
-
-# Set the LIBDIR, an empty string when not found.
-LIBDIR:=$(wildcard ../lib/${OS_NCASE}_${CPU})
-ifeq (, $(LIBDIR))
-	LIBDIR:=$(wildcard ../lib/${OS_NCASE}_centos7_${CPU})
-endif
-ifeq (, $(LIBDIR))
-	LIBDIR:=$(wildcard ../lib/${OS_NCASE})
-endif
-
-# Use the autopep8 module in ../lib/ (which can be executed via Python directly).
-# Otherwise the "autopep8" command can be used.
-ifndef AUTOPEP8
-	ifneq (, $(LIBDIR))
-		AUTOPEP8:=$(wildcard $(LIBDIR)/python/lib/python3.10/site-packages/autopep8.py)
-	endif
-	ifeq (, $(AUTOPEP8))
-		AUTOPEP8:=autopep8
-	endif
-endif
-

 # -----------------------------------------------------------------------------
-# Additional targets for the build configuration
+# additional targets for the build configuration

-# NOTE: These targets can be combined and are applied in reverse order listed here.
-# So it's important that `bpy` comes before `release` (for example)
-# `make bpy release` first loads `release` configuration, then `bpy`.
-# This is important as `bpy` will turn off some settings enabled by release.
-
-ifneq "$(findstring bpy, $(MAKECMDGOALS))" ""
-	BUILD_DIR:=$(BUILD_DIR)_bpy
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/bpy_module.cmake" $(CMAKE_CONFIG_ARGS)
-	BLENDER_IS_PYTHON_MODULE:=1
-endif
+# support 'make debug'
 ifneq "$(findstring debug, $(MAKECMDGOALS))" ""
 	BUILD_DIR:=$(BUILD_DIR)_debug
 	BUILD_TYPE:=Debug
 endif
 ifneq "$(findstring full, $(MAKECMDGOALS))" ""
 	BUILD_DIR:=$(BUILD_DIR)_full
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_full.cmake" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/blender_full.cmake"
 endif
 ifneq "$(findstring lite, $(MAKECMDGOALS))" ""
 	BUILD_DIR:=$(BUILD_DIR)_lite
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_lite.cmake" $(CMAKE_CONFIG_ARGS)
-endif
-ifneq "$(findstring release, $(MAKECMDGOALS))" ""
-	BUILD_DIR:=$(BUILD_DIR)_release
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_release.cmake" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/blender_lite.cmake"
 endif
 ifneq "$(findstring cycles, $(MAKECMDGOALS))" ""
 	BUILD_DIR:=$(BUILD_DIR)_cycles
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/cycles_standalone.cmake" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/cycles_standalone.cmake"
 endif
 ifneq "$(findstring headless, $(MAKECMDGOALS))" ""
 	BUILD_DIR:=$(BUILD_DIR)_headless
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_headless.cmake" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/blender_headless.cmake"
+endif
+ifneq "$(findstring bpy, $(MAKECMDGOALS))" ""
+	BUILD_DIR:=$(BUILD_DIR)_bpy
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/bpy_module.cmake"
 endif

-ifneq "$(findstring developer, $(MAKECMDGOALS))" ""
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_developer.cmake" $(CMAKE_CONFIG_ARGS)
-endif
-
-ifneq "$(findstring ccache, $(MAKECMDGOALS))" ""
-	CMAKE_CONFIG_ARGS:=-DWITH_COMPILER_CCACHE=YES $(CMAKE_CONFIG_ARGS)
-endif
-
-# -----------------------------------------------------------------------------
-# build tool
-
-ifneq "$(findstring ninja, $(MAKECMDGOALS))" ""
-	CMAKE_CONFIG_ARGS:=$(CMAKE_CONFIG_ARGS) -G Ninja
-	BUILD_COMMAND:=ninja
-	DEPS_BUILD_COMMAND:=ninja
-else
-	ifneq ("$(wildcard $(BUILD_DIR)/build.ninja)","")
-		BUILD_COMMAND:=ninja
-	else
-		BUILD_COMMAND:=make -s
-	endif
-
-	ifneq ("$(wildcard $(DEPS_BUILD_DIR)/build.ninja)","")
-		DEPS_BUILD_COMMAND:=ninja
-	else
-		DEPS_BUILD_COMMAND:=make -s
-	endif
-endif

 # -----------------------------------------------------------------------------
 # Blender binary path

-# Allow passing in own BLENDER_BIN so developers who don't
-# use the default build path can still use utility helpers.
 ifeq ($(OS), Darwin)
-	BLENDER_BIN?="$(BUILD_DIR)/bin/Blender.app/Contents/MacOS/Blender"
-	BLENDER_BIN_DIR?="$(BUILD_DIR)/bin/Blender.app/Contents/MacOS/Blender"
+	BLENDER_BIN="$(BUILD_DIR)/bin/blender.app/Contents/MacOS/blender"
 else
-	BLENDER_BIN?="$(BUILD_DIR)/bin/blender"
-	BLENDER_BIN_DIR?="$(BUILD_DIR)/bin"
+	BLENDER_BIN="$(BUILD_DIR)/bin/blender"
 endif


@@ -317,10 +112,7 @@ ifndef NPROCS
 	ifeq ($(OS), Linux)
 		NPROCS:=$(shell nproc)
 	endif
-	ifeq ($(OS), NetBSD)
-		NPROCS:=$(shell getconf NPROCESSORS_ONLN)
-	endif
-	ifneq (,$(filter $(OS),Darwin FreeBSD))
+	ifneq (,$(filter $(OS),Darwin FreeBSD NetBSD))
 		NPROCS:=$(shell sysctl -n hw.ncpu)
 	endif
 endif
@@ -329,7 +121,7 @@ endif
 # -----------------------------------------------------------------------------
 # Macro for configuring cmake

-CMAKE_CONFIG = cmake $(CMAKE_CONFIG_ARGS) \
+CMAKE_CONFIG = cmake $(BUILD_CMAKE_ARGS) \
                     -H"$(BLENDER_DIR)" \
                     -B"$(BUILD_DIR)" \
                     -DCMAKE_BUILD_TYPE_INIT:STRING=$(BUILD_TYPE)
@@ -338,7 +130,7 @@ CMAKE_CONFIG = cmake $(CMAKE_CONFIG_ARGS) \
 # -----------------------------------------------------------------------------
 # Tool for 'make config'

-# X11 specific.
+# X11 spesific
 ifdef DISPLAY
 	CMAKE_CONFIG_TOOL = cmake-gui
 else
@@ -361,26 +153,18 @@ all: .FORCE

 	@echo
 	@echo Building Blender ...
-	$(BUILD_COMMAND) -C "$(BUILD_DIR)" -j $(NPROCS) install
+	$(MAKE) -C "$(BUILD_DIR)" -s -j $(NPROCS) install
 	@echo
-	@echo Edit build configuration with: \"$(BUILD_DIR)/CMakeCache.txt\" run make again to rebuild.
-	@if test -z "$(BLENDER_IS_PYTHON_MODULE)"; then \
-		echo Blender successfully built, run from: $(BLENDER_BIN); \
-	else \
-		echo Blender successfully built as a Python module, \"bpy\" can be imported from: $(BLENDER_BIN_DIR); \
-	fi
+	@echo edit build configuration with: "$(BUILD_DIR)/CMakeCache.txt" run make again to rebuild.
+	@echo Blender successfully built, run from: $(BLENDER_BIN)
 	@echo

 debug: all
 full: all
 lite: all
-release: all
 cycles: all
 headless: all
 bpy: all
-developer: all
-ninja: all
-ccache: all

 # -----------------------------------------------------------------------------
 # Build dependencies
@@ -395,11 +179,11 @@ deps: .FORCE

 	@cmake -H"$(DEPS_SOURCE_DIR)" \
 	       -B"$(DEPS_BUILD_DIR)" \
-	       -DHARVEST_TARGET=$(DEPS_INSTALL_DIR)
+		   -DHARVEST_TARGET=$(DEPS_INSTALL_DIR)

 	@echo
 	@echo Building dependencies ...
-	$(DEPS_BUILD_COMMAND) -C "$(DEPS_BUILD_DIR)" -j $(NPROCS) $(DEPS_TARGET)
+	$(MAKE) -C "$(DEPS_BUILD_DIR)" -s -j $(NPROCS) $(DEPS_TARGET)
 	@echo
 	@echo Dependencies successfully built and installed to $(DEPS_INSTALL_DIR).
 	@echo
@@ -412,13 +196,96 @@ config: .FORCE

 # -----------------------------------------------------------------------------
 # Help for build targets
-export HELP_TEXT
 help: .FORCE
-	@echo "$$HELP_TEXT"
+	@echo ""
+	@echo "Convenience targets provided for building blender, (multiple at once can be used)"
+	@echo "  * debug     - build a debug binary"
+	@echo "  * full      - enable all supported dependencies & options"
+	@echo "  * lite      - disable non essential features for a smaller binary and faster build"
+	@echo "  * headless  - build without an interface (renderfarm or server automation)"
+	@echo "  * cycles    - build Cycles standalone only, without Blender"
+	@echo "  * bpy       - build as a python module which can be loaded from python directly"
+	@echo "  * deps      - build library dependencies (intended only for platform maintainers)"
+	@echo ""
+	@echo "  * config    - run cmake configuration tool to set build options"
+	@echo ""
+	@echo "  Note, passing the argument 'BUILD_DIR=path' when calling make will override the default build dir."
+	@echo "  Note, passing the argument 'BUILD_CMAKE_ARGS=args' lets you add cmake arguments."
+	@echo ""
+	@echo ""
+	@echo "Project Files for IDE's"
+	@echo "  * project_qtcreator - QtCreator Project Files"
+	@echo "  * project_netbeans  - NetBeans Project Files"
+	@echo "  * project_eclipse   - Eclipse CDT4 Project Files"
+	@echo ""
+	@echo "Package Targets"
+	@echo "  * package_debian  - build a debian package"
+	@echo "  * package_pacman  - build an arch linux pacman package"
+	@echo "  * package_archive - build an archive package"
+	@echo ""
+	@echo "Testing Targets (not associated with building blender)"
+	@echo "  * test               - run ctest, currently tests import/export,"
+	@echo "                         operator execution and that python modules load"
+	@echo "  * test_cmake         - runs our own cmake file checker"
+	@echo "                         which detects errors in the cmake file list definitions"
+	@echo "  * test_pep8          - checks all python script are pep8"
+	@echo "                         which are tagged to use the stricter formatting"
+	@echo "  * test_deprecated    - checks for deprecation tags in our code which may need to be removed"
+	@echo "  * test_style_c       - checks C/C++ conforms with blenders style guide:"
+	@echo "                         https://wiki.blender.org/wiki/Source/Code_Style"
+	@echo "  * test_style_c_qtc   - same as test_style but outputs QtCreator tasks format"
+	@echo "  * test_style_osl     - checks OpenShadingLanguage conforms with blenders style guide:"
+	@echo "                         https://wiki.blender.org/wiki/Source/Code_Style"
+	@echo "  * test_style_osl_qtc - checks OpenShadingLanguage conforms with blenders style guide:"
+	@echo "                         https://wiki.blender.org/wiki/Source/Code_Style"
+	@echo ""
+	@echo "Static Source Code Checking (not associated with building blender)"
+	@echo "  * check_cppcheck       - run blender source through cppcheck (C & C++)"
+	@echo "  * check_clang_array    - run blender source through clang array checking script (C & C++)"
+	@echo "  * check_splint         - run blenders source through splint (C only)"
+	@echo "  * check_sparse         - run blenders source through sparse (C only)"
+	@echo "  * check_smatch         - run blenders source through smatch (C only)"
+	@echo "  * check_spelling_c     - check for spelling errors (C/C++ only)"
+	@echo "  * check_spelling_c_qtc - same as check_spelling_c but outputs QtCreator tasks format"
+	@echo "  * check_spelling_osl   - check for spelling errors (OSL only)"
+	@echo "  * check_spelling_py    - check for spelling errors (Python only)"
+	@echo "  * check_descriptions   - check for duplicate/invalid descriptions"
+	@echo ""
+	@echo "Utilities (not associated with building blender)"
+	@echo "  * icons    - Updates PNG icons from SVG files."
+	@echo "               Set environment variables 'BLENDER_BIN' and 'INKSCAPE_BIN'"
+	@echo "               to define your own commands."
+	@echo "  * icons_geom - Updates Geometry icons from BLEND file."
+	@echo "                 Set environment variable 'BLENDER_BIN'"
+	@echo "                 to define your own command."
+	@echo "  * tgz        - create a compressed archive of the source code."
+	@echo "  * update     - updates git and all submodules"
+	@echo ""
+	@echo "Environment Variables"
+	@echo "  * BUILD_CMAKE_ARGS    - arguments passed to CMake."
+	@echo "  * BUILD_DIR           - override default build path."
+	@echo "  * PYTHON              - use this for the Python command (used for checking tools)."
+	@echo "  * NPROCS              - number of processes to use building (auto-detect when omitted)."
+	@echo ""
+	@echo "Documentation Targets (not associated with building blender)"
+	@echo "  * doc_py   - generate sphinx python api docs"
+	@echo "  * doc_doxy - generate doxygen C/C++ docs"
+	@echo "  * doc_dna  - generate blender file format reference"
+	@echo "  * doc_man  - generate manpage"
+	@echo ""
+	@echo "Information"
+	@echo "  * help          - this help message"
+	@echo "  * help_features - show a list of optional features when building"
+	@echo ""

 # -----------------------------------------------------------------------------
 # Packages
 #
+package_debian: .FORCE
+	cd build_files/package_spec ; DEB_BUILD_OPTIONS="parallel=$(NPROCS)" sh ./build_debian.sh
+
+package_pacman: .FORCE
+	cd build_files/package_spec/pacman ; MAKEFLAGS="-j$(NPROCS)" makepkg

 package_archive: .FORCE
 	make -C "$(BUILD_DIR)" -s package_archive
@@ -429,15 +296,68 @@ package_archive: .FORCE
 # Tests
 #
 test: .FORCE
-	@$(PYTHON) ./build_files/utils/make_test.py "$(BUILD_DIR)"
+	cd $(BUILD_DIR) ; ctest . --output-on-failure

+# run pep8 check check on scripts we distribute.
+test_pep8: .FORCE
+	$(PYTHON) tests/python/pep8.py > test_pep8.log 2>&1
+	@echo "written: test_pep8.log"
+
+# run some checks on our cmakefiles.
+test_cmake: .FORCE
+	$(PYTHON) build_files/cmake/cmake_consistency_check.py > test_cmake_consistency.log 2>&1
+	@echo "written: test_cmake_consistency.log"
+
+# run deprecation tests, see if we have anything to remove.
+test_deprecated: .FORCE
+	$(PYTHON) tests/check_deprecated.py
+
+test_style_c: .FORCE
+	# run our own checks on C/C++ style
+	PYTHONIOENCODING=utf_8 $(PYTHON) \
+	    "$(BLENDER_DIR)/source/tools/check_source/check_style_c.py" \
+	    "$(BLENDER_DIR)/source/blender" \
+	    "$(BLENDER_DIR)/source/creator" \
+	    --no-length-check
+
+test_style_c_qtc: .FORCE
+	# run our own checks on C/C++ style
+	USE_QTC_TASK=1 \
+	PYTHONIOENCODING=utf_8 $(PYTHON) \
+	    "$(BLENDER_DIR)/source/tools/check_source/check_style_c.py" \
+	    "$(BLENDER_DIR)/source/blender" \
+	    "$(BLENDER_DIR)/source/creator" \
+	    --no-length-check \
+	    > \
+	    "$(BLENDER_DIR)/test_style.tasks"
+	@echo "written: test_style.tasks"
+
+
+test_style_osl: .FORCE
+	# run our own checks on C/C++ style
+	PYTHONIOENCODING=utf_8 $(PYTHON) \
+	    "$(BLENDER_DIR)/source/tools/check_source/check_style_c.py" \
+	    "$(BLENDER_DIR)/intern/cycles/kernel/shaders" \
+	    "$(BLENDER_DIR)/release/scripts/templates_osl"
+
+
+test_style_osl_qtc: .FORCE
+	# run our own checks on C/C++ style
+	USE_QTC_TASK=1 \
+	PYTHONIOENCODING=utf_8 $(PYTHON) \
+	    "$(BLENDER_DIR)/source/tools/check_source/check_style_c.py" \
+	    "$(BLENDER_DIR)/intern/cycles/kernel/shaders" \
+	    "$(BLENDER_DIR)/release/scripts/templates_osl" \
+	    > \
+	    "$(BLENDER_DIR)/test_style.tasks"
+	@echo "written: test_style.tasks"

 # -----------------------------------------------------------------------------
 # Project Files
 #

 project_qtcreator: .FORCE
-	$(PYTHON) build_files/cmake/cmake_qtcreator_project.py --build-dir "$(BUILD_DIR)"
+	$(PYTHON) build_files/cmake/cmake_qtcreator_project.py "$(BUILD_DIR)"

 project_netbeans: .FORCE
 	$(PYTHON) build_files/cmake/cmake_netbeans_project.py "$(BUILD_DIR)"
@@ -451,118 +371,95 @@ project_eclipse: .FORCE
 #

 check_cppcheck: .FORCE
-	@$(CMAKE_CONFIG)
-	@cd "$(BUILD_DIR)" ; \
-	$(PYTHON) \
-	    "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_cppcheck.py" 2> \
+	$(CMAKE_CONFIG)
+	cd "$(BUILD_DIR)" ; \
+	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_cppcheck.py" 2> \
 	    "$(BLENDER_DIR)/check_cppcheck.txt"
 	@echo "written: check_cppcheck.txt"

 check_clang_array: .FORCE
-	@$(CMAKE_CONFIG)
-	@cd "$(BUILD_DIR)" ; \
+	$(CMAKE_CONFIG)
+	cd "$(BUILD_DIR)" ; \
 	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_clang_array.py"

 check_splint: .FORCE
-	@$(CMAKE_CONFIG)
-	@cd "$(BUILD_DIR)" ; \
+	$(CMAKE_CONFIG)
+	cd "$(BUILD_DIR)" ; \
 	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_splint.py"

 check_sparse: .FORCE
-	@$(CMAKE_CONFIG)
-	@cd "$(BUILD_DIR)" ; \
+	$(CMAKE_CONFIG)
+	cd "$(BUILD_DIR)" ; \
 	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_sparse.py"

 check_smatch: .FORCE
-	@$(CMAKE_CONFIG)
-	@cd "$(BUILD_DIR)" ; \
+	$(CMAKE_CONFIG)
+	cd "$(BUILD_DIR)" ; \
 	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_smatch.py"

-check_mypy: .FORCE
-	@$(PYTHON) "$(BLENDER_DIR)/source/tools/check_source/check_mypy.py"
-
 check_spelling_py: .FORCE
-	@cd "$(BUILD_DIR)" ; \
+	cd "$(BUILD_DIR)" ; \
 	PYTHONIOENCODING=utf_8 $(PYTHON) \
 	    "$(BLENDER_DIR)/source/tools/check_source/check_spelling.py" \
 	    "$(BLENDER_DIR)/release/scripts"

 check_spelling_c: .FORCE
-	@cd "$(BUILD_DIR)" ; \
+	cd "$(BUILD_DIR)" ; \
 	PYTHONIOENCODING=utf_8 $(PYTHON) \
 	    "$(BLENDER_DIR)/source/tools/check_source/check_spelling.py" \
-	    --cache-file=$(CHECK_SPELLING_CACHE) \
 	    "$(BLENDER_DIR)/source" \
 	    "$(BLENDER_DIR)/intern/cycles" \
 	    "$(BLENDER_DIR)/intern/guardedalloc" \
 	    "$(BLENDER_DIR)/intern/ghost" \

-check_spelling_osl: .FORCE
-	@cd "$(BUILD_DIR)" ; \
+check_spelling_c_qtc: .FORCE
+	cd "$(BUILD_DIR)" ; USE_QTC_TASK=1 \
+	PYTHONIOENCODING=utf_8 $(PYTHON) \
+	    "$(BLENDER_DIR)/source/tools/check_source/check_spelling.py" \
+	    "$(BLENDER_DIR)/source" \
+	    "$(BLENDER_DIR)/intern/cycles" \
+	    "$(BLENDER_DIR)/intern/guardedalloc" \
+	    "$(BLENDER_DIR)/intern/ghost" \
+	    > \
+	    "$(BLENDER_DIR)/check_spelling_c.tasks"
+
+check_spelling_osl: .FORCE
+	cd "$(BUILD_DIR)" ;\
 	PYTHONIOENCODING=utf_8 $(PYTHON) \
 	    "$(BLENDER_DIR)/source/tools/check_source/check_spelling.py" \
-	    --cache-file=$(CHECK_SPELLING_CACHE) \
 	    "$(BLENDER_DIR)/intern/cycles/kernel/shaders"

 check_descriptions: .FORCE
-	@$(BLENDER_BIN) --background -noaudio --factory-startup --python \
+	$(BLENDER_BIN) --background -noaudio --factory-startup --python \
 	    "$(BLENDER_DIR)/source/tools/check_source/check_descriptions.py"

-check_deprecated: .FORCE
-	@PYTHONIOENCODING=utf_8 $(PYTHON) \
-	    source/tools/check_source/check_deprecated.py
-
-check_licenses: .FORCE
-	@PYTHONIOENCODING=utf_8 $(PYTHON) \
-	    "$(BLENDER_DIR)/source/tools/check_source/check_licenses.py" \
-	    "--show-headers=$(SHOW_HEADERS)"
-
-check_pep8: .FORCE
-	@PYTHONIOENCODING=utf_8 $(PYTHON) \
-	    tests/python/pep8.py
-
-check_cmake: .FORCE
-	@PYTHONIOENCODING=utf_8 $(PYTHON) \
-	    source/tools/check_source/check_cmake_consistency.py
-
-
 # -----------------------------------------------------------------------------
 # Utilities
 #

-source_archive: .FORCE
-	@$(PYTHON) ./build_files/utils/make_source_archive.py
+tgz: .FORCE
+	./build_files/utils/build_tgz.sh

-source_archive_complete: .FORCE
-	@cmake \
-	    -S "$(BLENDER_DIR)/build_files/build_environment" -B"$(BUILD_DIR)/source_archive" \
-	    -DCMAKE_BUILD_TYPE_INIT:STRING=$(BUILD_TYPE) -DPACKAGE_USE_UPSTREAM_SOURCES=OFF
-# This assumes CMake is still using a default `PACKAGE_DIR` variable:
-	@$(PYTHON) ./build_files/utils/make_source_archive.py --include-packages "$(BUILD_DIR)/source_archive/packages"
-
-
-INKSCAPE_BIN?="inkscape"
 icons: .FORCE
-	@BLENDER_BIN=$(BLENDER_BIN) INKSCAPE_BIN=$(INKSCAPE_BIN) \
-	    "$(BLENDER_DIR)/release/datafiles/blender_icons_update.py"
-	@INKSCAPE_BIN=$(INKSCAPE_BIN) \
-	    "$(BLENDER_DIR)/release/datafiles/prvicons_update.py"
-	@INKSCAPE_BIN=$(INKSCAPE_BIN) \
-	    "$(BLENDER_DIR)/release/datafiles/alert_icons_update.py"
+	"$(BLENDER_DIR)/release/datafiles/blender_icons_update.py"
+	"$(BLENDER_DIR)/release/datafiles/prvicons_update.py"

 icons_geom: .FORCE
-	@BLENDER_BIN=$(BLENDER_BIN) \
+	BLENDER_BIN=$(BLENDER_BIN) \
 	    "$(BLENDER_DIR)/release/datafiles/blender_icons_geom_update.py"

 update: .FORCE
-	@$(PYTHON) ./build_files/utils/make_update.py
-
-update_code: .FORCE
-	@$(PYTHON) ./build_files/utils/make_update.py --no-libraries
-
-format: .FORCE
-	@PATH="${LIBDIR}/llvm/bin/:$(PATH)" $(PYTHON) source/tools/utils_maintenance/clang_format_paths.py $(PATHS)
-	@$(PYTHON) source/tools/utils_maintenance/autopep8_format_paths.py --autopep8-command="$(AUTOPEP8)" $(PATHS)
+	if [ "$(OS_NCASE)" = "darwin" ] && [ ! -d "../lib/$(OS_NCASE)" ]; then \
+		svn checkout https://svn.blender.org/svnroot/bf-blender/trunk/lib/$(OS_NCASE) ../lib/$(OS_NCASE) ; \
+	fi
+	if [ -d "../lib" ]; then \
+		svn cleanup ../lib/* ; \
+		svn update ../lib/* ; \
+	fi
+	git pull --rebase
+	git submodule update --init --recursive
+	git submodule foreach git checkout master
+	git submodule foreach git pull --rebase origin master


 # -----------------------------------------------------------------------------
@@ -571,31 +468,29 @@ format: .FORCE

 # Simple version of ./doc/python_api/sphinx_doc_gen.sh with no PDF generation.
 doc_py: .FORCE
-	@ASAN_OPTIONS=halt_on_error=0:${ASAN_OPTIONS} \
-	$(BLENDER_BIN) \
-	    --background -noaudio --factory-startup \
-	    --python doc/python_api/sphinx_doc_gen.py
-	@sphinx-build -b html -j $(NPROCS) doc/python_api/sphinx-in doc/python_api/sphinx-out
+	ASAN_OPTIONS=halt_on_error=0 \
+	$(BLENDER_BIN) --background -noaudio --factory-startup \
+		--python doc/python_api/sphinx_doc_gen.py
+	cd doc/python_api ; sphinx-build -b html sphinx-in sphinx-out
 	@echo "docs written into: '$(BLENDER_DIR)/doc/python_api/sphinx-out/index.html'"

 doc_doxy: .FORCE
-	@cd doc/doxygen; doxygen Doxyfile
+	cd doc/doxygen; doxygen Doxyfile
 	@echo "docs written into: '$(BLENDER_DIR)/doc/doxygen/html/index.html'"

 doc_dna: .FORCE
-	@$(BLENDER_BIN) \
-	    --background -noaudio --factory-startup \
-	    --python doc/blender_file_format/BlendFileDnaExporter_25.py
+	$(BLENDER_BIN) --background -noaudio --factory-startup \
+		--python doc/blender_file_format/BlendFileDnaExporter_25.py
 	@echo "docs written into: '$(BLENDER_DIR)/doc/blender_file_format/dna.html'"

 doc_man: .FORCE
-	@$(PYTHON) doc/manpage/blender.1.py --blender="$(BLENDER_BIN)" --output=blender.1 --verbose
+	$(PYTHON) doc/manpage/blender.1.py $(BLENDER_BIN) blender.1

 help_features: .FORCE
 	@$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_print_build_options.py" $(BLENDER_DIR)"/CMakeLists.txt"

 clean: .FORCE
-	$(BUILD_COMMAND) -C "$(BUILD_DIR)" clean
+	$(MAKE) -C "$(BUILD_DIR)" clean

 .PHONY: all

--- a/build_files/build_environment/CMakeLists.txt
+++ b/build_files/build_environment/CMakeLists.txt
@@ -1,6 +1,22 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

-##################################################################################################
+####################################################################################################
 #
 # This is a build system used by platform maintainers to build library dependencies on
 # Windows, macOS and Linux.
@@ -9,173 +25,126 @@
 # Windows and macOS, and install_deps.sh on Linux.
 #
 # WINDOWS USAGE:
-#   Don't call this cmake file yourself, use build_deps.cmd
+#   Don't call this cmake file your self, use build_deps.cmd
 #   build_deps 2013 x64 / build_deps 2013 x86
 #   build_deps 2015 x64 / build_deps 2015 x86
 #
 # MAC OS X USAGE:
-#   Install with homebrew: brew install autoconf automake bison cmake libtool pkg-config yasm
-#   Additional requirements for macOS arm64: brew install flex
+#	Install with homebrew: brew install autoconf automake libtool yasm nasm
 #   Run "make deps" from main Blender directory
 #
 # LINUX USAGE:
-#   Install compiler cmake autoconf automake libtool yasm tcl
+#   Install compiler, cmake, autoconf, automake, libtool, yasm
 #   Run "make deps" from main Blender directory
 #
-##################################################################################################
+####################################################################################################

 project("BlenderDependencies")
 cmake_minimum_required(VERSION 3.5)

 include(ExternalProject)
-include(cmake/check_software.cmake)
 include(cmake/options.cmake)
-# `versions.cmake` needs to be included after `options.cmake`
-# due to the `BLENDER_PLATFORM_ARM` variable being needed.
 include(cmake/versions.cmake)
-include(cmake/boost_build_options.cmake)
-include(cmake/download.cmake)
-include(cmake/macros.cmake)

 if(ENABLE_MINGW64)
-  include(cmake/setup_mingw64.cmake)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		include(cmake/setup_mingw64.cmake)
+	else()
+		include(cmake/setup_mingw32.cmake)
+	endif()
 else()
-  set(mingw_LIBDIR ${LIBDIR})
+	set(mingw_LIBDIR ${LIBDIR})
 endif()

 include(cmake/zlib.cmake)
-include(cmake/zstd.cmake)
+include(cmake/blendthumb.cmake)
 include(cmake/openal.cmake)
 include(cmake/png.cmake)
 include(cmake/jpeg.cmake)
+include(cmake/boost.cmake)
 include(cmake/blosc.cmake)
 include(cmake/pthreads.cmake)
-include(cmake/imath.cmake)
+include(cmake/ilmbase.cmake)
 include(cmake/openexr.cmake)
-include(cmake/brotli.cmake)
 include(cmake/freetype.cmake)
-include(cmake/epoxy.cmake)
 include(cmake/freeglut.cmake)
+include(cmake/glew.cmake)
 include(cmake/alembic.cmake)
+include(cmake/glfw.cmake)
+include(cmake/clew.cmake)
+include(cmake/cuew.cmake)
 include(cmake/opensubdiv.cmake)
 include(cmake/sdl.cmake)
 include(cmake/opencollada.cmake)
+include(cmake/opencolorio.cmake)
+include(cmake/llvm.cmake)
+include(cmake/clang.cmake)
 if(APPLE)
  include(cmake/openmp.cmake)
 endif()
-if(UNIX)
-  include(cmake/nasm.cmake)
-endif()
 include(cmake/openimageio.cmake)
 include(cmake/tiff.cmake)
-if(WIN32)
-  include(cmake/flexbison.cmake)
-elseif(UNIX AND NOT APPLE)
-  include(cmake/flex.cmake)
-endif()
+include(cmake/flexbison.cmake)
 include(cmake/osl.cmake)
 include(cmake/tbb.cmake)
 include(cmake/openvdb.cmake)
 include(cmake/python.cmake)
-include(cmake/llvm.cmake)
-option(USE_PIP_NUMPY "Install NumPy using pip wheel instead of building from source" OFF)
-if(APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
-  set(USE_PIP_NUMPY ON)
-else()
-  include(cmake/numpy.cmake)
-endif()
 include(cmake/python_site_packages.cmake)
-include(cmake/package_python.cmake)
-include(cmake/usd.cmake)
-include(cmake/potrace.cmake)
-include(cmake/haru.cmake)
-# Boost needs to be included after `python.cmake` due to the PYTHON_BINARY variable being needed.
-include(cmake/boost.cmake)
+include(cmake/numpy.cmake)
 include(cmake/pugixml.cmake)
-include(cmake/ispc.cmake)
-include(cmake/openimagedenoise.cmake)
-include(cmake/embree.cmake)
-include(cmake/openpgl.cmake)
-include(cmake/fmt.cmake)
-include(cmake/robinmap.cmake)
-include(cmake/xml2.cmake)

-if(NOT APPLE)
-  include(cmake/xr_openxr.cmake)
-  if(NOT WIN32 OR BUILD_MODE STREQUAL Release)
-    include(cmake/dpcpp.cmake)
-    include(cmake/dpcpp_deps.cmake)
-  endif()
-  if(NOT WIN32)
-    include(cmake/igc.cmake)
-    include(cmake/gmmlib.cmake)
-    include(cmake/ocloc.cmake)
-  endif()
+if(WITH_WEBP)
+	include(cmake/webp.cmake)
 endif()

-# OpenColorIO and dependencies.
-include(cmake/expat.cmake)
-include(cmake/pystring.cmake)
-include(cmake/yamlcpp.cmake)
-include(cmake/opencolorio.cmake)
+if(WIN32)
+	# HMD branch deps
+	include(cmake/hidapi.cmake)
+	# OCIO deps
+	include(cmake/tinyxml.cmake)
+	include(cmake/yamlcpp.cmake)
+	# LCMS is an OCIO dep, but only if you build the apps, leaving it here for convenience
+	#include(cmake/lcms.cmake)

-if(BLENDER_PLATFORM_ARM)
-  include(cmake/sse2neon.cmake)
-endif()
-
-include(cmake/webp.cmake)
-if(NOT APPLE)
-  include(cmake/level-zero.cmake)
 endif()

 if(NOT WIN32 OR ENABLE_MINGW64)
-  include(cmake/gmp.cmake)
-  include(cmake/openjpeg.cmake)
-  if(NOT WIN32 OR BUILD_MODE STREQUAL Release)
-    if(WIN32)
-      include(cmake/zlib_mingw.cmake)
-    endif()
-    include(cmake/lame.cmake)
-    include(cmake/ogg.cmake)
-    include(cmake/vorbis.cmake)
-    include(cmake/theora.cmake)
-    include(cmake/opus.cmake)
-    include(cmake/vpx.cmake)
-    include(cmake/x264.cmake)
-    include(cmake/xvidcore.cmake)
-    include(cmake/aom.cmake)
-    include(cmake/ffmpeg.cmake)
-    include(cmake/fftw.cmake)
-    include(cmake/sndfile.cmake)
-    if(WIN32)
-      include(cmake/iconv.cmake)
-    endif()
-    if(UNIX)
-      include(cmake/flac.cmake)
-      if(NOT APPLE)
-        include(cmake/spnav.cmake)
-        include(cmake/jemalloc.cmake)
-      endif()
-    endif()
-  endif()
+	include(cmake/openjpeg.cmake)
+	if(BUILD_MODE STREQUAL Release)
+		if(WIN32)
+			include(cmake/zlib_mingw.cmake)
+		endif()
+		include(cmake/lame.cmake)
+		include(cmake/ogg.cmake)
+		include(cmake/vorbis.cmake)
+		include(cmake/theora.cmake)
+		include(cmake/vpx.cmake)
+		include(cmake/x264.cmake)
+		include(cmake/xvidcore.cmake)
+		include(cmake/faad.cmake)
+		include(cmake/ffmpeg.cmake)
+		include(cmake/fftw.cmake)
+		include(cmake/sndfile.cmake)
+		if(WIN32)
+			include(cmake/iconv.cmake)
+		endif()
+		if(UNIX)
+			include(cmake/flac.cmake)
+			include(cmake/xml2.cmake)
+			if(NOT APPLE)
+				include(cmake/spnav.cmake)
+				include(cmake/jemalloc.cmake)
+			endif()
+		endif()
+	endif()
 endif()

 if(UNIX)
-  include(cmake/bzip2.cmake)
-  include(cmake/ffi.cmake)
-  include(cmake/lzma.cmake)
-  include(cmake/ssl.cmake)
-  include(cmake/sqlite.cmake)
-endif()
-
-if(UNIX AND NOT APPLE)
-  include(cmake/libglu.cmake)
-  include(cmake/mesa.cmake)
-  include(cmake/wayland_protocols.cmake)
-  # Can be removed when the build-bot upgrades to v1.20.x or newer.
-  include(cmake/wayland.cmake)
-  include(cmake/wayland_libdecor.cmake)
+	include(cmake/bzip2.cmake)
+	include(cmake/ffi.cmake)
+	include(cmake/lzma.cmake)
+	include(cmake/ssl.cmake)
+	include(cmake/sqlite.cmake)
 endif()

 include(cmake/harvest.cmake)
-include(cmake/cve_check.cmake)
--- a/build_files/build_environment/cmake/alembic.cmake
+++ b/build_files/build_environment/cmake/alembic.cmake
@@ -1,46 +1,105 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(ALEMBIC_HDF5)
+	set(ALEMBIC_HDF5_HL)
+	# in debug mode we do not build HDF5_hdf5_hl_LIBRARY which makes cmake really
+	# unhappy, stub it with the debug mode lib. it's not linking it in at this
+	# point in time anyhow
+	if(BUILD_MODE STREQUAL Debug)
+		set(ALEMBIC_HDF5_HL -DHDF5_hdf5_hl_LIBRARY=${LIBDIR}/hdf5/lib/libhdf5_hl_D.${LIBEXT})
+	endif()
+endif()
+
+if(WIN32)
+	set(ALEMBIC_ILMBASE ${LIBDIR}/openexr)
+else()
+	set(ALEMBIC_ILMBASE ${LIBDIR}/ilmbase)
+endif()

 set(ALEMBIC_EXTRA_ARGS
-  -DImath_ROOT=${LIBDIR}/imath
-  -DUSE_PYALEMBIC=OFF
-  -DUSE_ARNOLD=OFF
-  -DUSE_MAYA=OFF
-  -DUSE_PRMAN=OFF
-  -DUSE_HDF5=OFF
-  -DUSE_TESTS=OFF
-  -DUSE_BINARIES=ON
-  -DALEMBIC_ILMBASE_LINK_STATIC=OFF
-  -DALEMBIC_SHARED_LIBS=OFF
+	-DBUILDSTATIC=ON
+	-DLINKSTATIC=ON
+	-DALEMBIC_LIB_USES_BOOST=ON
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DUSE_STATIC_BOOST=On
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBoost_DEBUG=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DILMBASE_ROOT=${ALEMBIC_ILMBASE}
+	-DALEMBIC_ILMBASE_INCLUDE_DIRECTORY=${ALEMBIC_ILMBASE}/include/OpenEXR
+	-DALEMBIC_ILMBASE_HALF_LIB=${ALEMBIC_ILMBASE}/lib/${LIBPREFIX}Half${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DALEMBIC_ILMBASE_IMATH_LIB=${ALEMBIC_ILMBASE}/lib/${LIBPREFIX}Imath${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DALEMBIC_ILMBASE_ILMTHREAD_LIB=${ALEMBIC_ILMBASE}/lib/${LIBPREFIX}IlmThread${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DALEMBIC_ILMBASE_IEX_LIB=${ALEMBIC_ILMBASE}/lib/${LIBPREFIX}Iex${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DALEMBIC_ILMBASE_IEXMATH_LIB=${ALEMBIC_ILMBASE}/lib/${LIBPREFIX}IexMath${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DUSE_PYILMBASE=0
+	-DUSE_PYALEMBIC=0
+	-DUSE_ARNOLD=0
+	-DUSE_MAYA=0
+	-DUSE_PRMAN=0
+	-DUSE_HDF5=Off
+	-DUSE_STATIC_HDF5=Off
+	-DHDF5_ROOT=${LIBDIR}/hdf5
+	-DUSE_TESTS=Off
+	-DALEMBIC_NO_OPENGL=1
+	-DUSE_BINARIES=ON
+	-DALEMBIC_ILMBASE_LINK_STATIC=On
+	-DALEMBIC_SHARED_LIBS=OFF
+	-DGLUT_INCLUDE_DIR=""
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	${ALEMBIC_HDF5_HL}
 )

 ExternalProject_Add(external_alembic
-  URL file://${PACKAGE_DIR}/${ALEMBIC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ALEMBIC_HASH_TYPE}=${ALEMBIC_HASH}
-  PREFIX ${BUILD_DIR}/alembic
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/alembic -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ALEMBIC_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/alembic
+	URL ${ALEMBIC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${ALEMBIC_MD5}
+	PREFIX ${BUILD_DIR}/alembic
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/alembic -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ALEMBIC_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/alembic
 )

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_alembic after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/alembic ${HARVEST_TARGET}/alembic
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_alembic after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/alembic/lib/alembic.lib ${HARVEST_TARGET}/alembic/lib/alembic_d.lib
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_alembic after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/alembic ${HARVEST_TARGET}/alembic
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_alembic after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/alembic/lib/alembic.lib ${HARVEST_TARGET}/alembic/lib/alembic_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()



 add_dependencies(
-  external_alembic
-  external_openexr
-  external_imath
+	external_alembic
+	external_boost
+	external_zlib
+	external_ilmbase
+	external_openexr
 )
--- a/build_files/build_environment/cmake/aom.cmake
+++ b/build_files/build_environment/cmake/aom.cmake
@@ -1,41 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(WIN32)
-  # The default generator on windows is msbuild, which we do not
-  # want to use for this dep, as needs to build with mingw
-  set(AOM_GENERATOR "Ninja")
-  # The default flags are full of MSVC options given this will be
-  # building with mingw, it'll have an unhappy time with that and
-  # we need to clear them out.
-  set(AOM_CMAKE_FLAGS )
-else()
-  set(AOM_GENERATOR "Unix Makefiles")
-  set(AOM_CMAKE_FLAGS ${DEFAULT_CMAKE_FLAGS})
-endif()
-
-set(AOM_EXTRA_ARGS
-  -DENABLE_TESTDATA=OFF
-  -DENABLE_TESTS=OFF
-  -DENABLE_TOOLS=OFF
-  -DENABLE_EXAMPLES=OFF
-  ${AOM_EXTRA_ARGS_WIN32}
-)
-
-# This is slightly different from all other deps in the way that
-# aom uses cmake as a build system, but still needs the environment setup
-# to include perl so we manually setup the environment and call
-# cmake directly for the configure, build and install commands.
-
-ExternalProject_Add(external_aom
-  URL file://${PACKAGE_DIR}/${AOM_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${AOM_HASH_TYPE}=${AOM_HASH}
-  PREFIX ${BUILD_DIR}/aom
-  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/aom/src/external_aom < ${PATCH_DIR}/aom.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
-    cd ${BUILD_DIR}/aom/src/external_aom-build/ &&
-    ${CMAKE_COMMAND} -G "${AOM_GENERATOR}" -DCMAKE_INSTALL_PREFIX=${LIBDIR}/aom ${AOM_CMAKE_FLAGS} ${AOM_EXTRA_ARGS} ${BUILD_DIR}/aom/src/external_aom/
-  BUILD_COMMAND ${CMAKE_COMMAND} --build .
-  INSTALL_COMMAND ${CMAKE_COMMAND} --build . --target install
-  INSTALL_DIR ${LIBDIR}/aom
-)
--- a/build_files/build_environment/cmake/blendthumb.cmake
+++ b/build_files/build_environment/cmake/blendthumb.cmake
@@ -0,0 +1,67 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(BUILD_MODE STREQUAL Release)
+	if(WIN32)
+		set(THUMB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../release/windows/blendthumb)
+
+		ExternalProject_Add(external_zlib_32
+			URL ${ZLIB_URI}
+			CMAKE_GENERATOR ${GENERATOR_32}
+			URL_HASH MD5=${ZLIB_HASH}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			PREFIX ${BUILD_DIR}/zlib32
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib32 ${DEFAULT_CMAKE_FLAGS}
+			INSTALL_DIR ${LIBDIR}/zlib32
+		)
+
+		ExternalProject_Add(external_zlib_64
+			URL ${ZLIB_URI}
+			CMAKE_GENERATOR ${GENERATOR_64}
+			URL_HASH MD5=${ZLIB_HASH}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			PREFIX ${BUILD_DIR}/zlib64
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib64 ${DEFAULT_CMAKE_FLAGS}
+			INSTALL_DIR ${LIBDIR}/zlib64
+		)
+
+		ExternalProject_Add(external_blendthumb_32
+			CMAKE_GENERATOR ${GENERATOR_32}
+			SOURCE_DIR ${THUMB_DIR}
+			PREFIX ${BUILD_DIR}/blendthumb32
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb32 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib32/include -DZLIB_LIBS=${LIBDIR}/zlib32/lib/zlibstatic.lib
+			INSTALL_DIR ${LIBDIR}/blendthumb32
+		)
+		add_dependencies(
+			external_blendthumb_32
+			external_zlib_32
+		)
+
+		ExternalProject_Add(external_blendthumb_64
+			CMAKE_GENERATOR ${GENERATOR_64}
+			SOURCE_DIR ${THUMB_DIR}
+			PREFIX ${BUILD_DIR}/blendthumb64
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb64 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib64/include -DZLIB_LIBS=${LIBDIR}/zlib64/lib/zlibstatic.lib
+			INSTALL_DIR ${LIBDIR}/blendthumb64
+		)
+		add_dependencies(
+			external_blendthumb_64
+			external_zlib_64
+		)
+	endif()
+endif()
--- a/build_files/build_environment/cmake/blosc.cmake
+++ b/build_files/build_environment/cmake/blosc.cmake
@@ -1,56 +1,75 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(BLOSC_EXTRA_ARGS
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DBUILD_TESTS=OFF
-  -DBUILD_BENCHMARKS=OFF
-  -DCMAKE_DEBUG_POSTFIX=_d
-  -DThreads_FOUND=1
-  -DPTHREAD_LIBS=${LIBDIR}/pthreads/lib/pthreadVC3.lib
-  -DPTHREAD_INCLUDE_DIR=${LIBDIR}/pthreads/inc
-  -DDEACTIVATE_SNAPPY=ON
-  -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DBUILD_TESTS=OFF
+	-DBUILD_BENCHMARKS=OFF
+	-DCMAKE_DEBUG_POSTFIX=_d
+	-DThreads_FOUND=1
+	-DPTHREAD_LIBS=${LIBDIR}/pthreads/lib/pthreadVC2.lib
+	-DPTHREAD_INCLUDE_DIR=${LIBDIR}/pthreads/inc
+	-DDEACTIVATE_SNAPPY=ON
+	-DCMAKE_POSITION_INDEPENDENT_CODE=ON
 )

-# Prevent blosc from including its own local copy of zlib in the object file
-# and cause linker errors with everybody else.
-set(BLOSC_EXTRA_ARGS ${BLOSC_EXTRA_ARGS}
-  -DPREFER_EXTERNAL_ZLIB=ON
-)
+if(WIN32)
+	#prevent blosc from including it's own local copy of zlib in the object file
+	#and cause linker errors with everybody else
+	set(BLOSC_EXTRA_ARGS ${BLOSC_EXTRA_ARGS}
+		-DPREFER_EXTERNAL_ZLIB=ON
+	)
+endif()

 ExternalProject_Add(external_blosc
-  URL file://${PACKAGE_DIR}/${BLOSC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BLOSC_HASH_TYPE}=${BLOSC_HASH}
-  PREFIX ${BUILD_DIR}/blosc
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/blosc
+	URL ${BLOSC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${BLOSC_HASH}
+	PREFIX ${BUILD_DIR}/blosc
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/blosc/src/external_blosc < ${PATCH_DIR}/blosc.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/blosc
 )

 add_dependencies(
-  external_blosc
-  external_zlib
+	external_blosc
+	external_zlib
 )
 if(WIN32)
-  add_dependencies(
-    external_blosc
-    external_pthreads
-  )
+	add_dependencies(
+		external_blosc
+		external_pthreads
+	)
 endif()

-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_blosc after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc.lib ${HARVEST_TARGET}/blosc/lib/libblosc.lib
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/blosc/include/ ${HARVEST_TARGET}/blosc/include/
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_blosc after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc_d.lib ${HARVEST_TARGET}/blosc/lib/libblosc_d.lib
-      DEPENDEES install
-    )
-  endif()
+if (WIN32)
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_blosc after_install
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc.lib ${HARVEST_TARGET}/blosc/lib/libblosc.lib
+			COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/blosc/include/ ${HARVEST_TARGET}/blosc/include/
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_blosc after_install
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc_d.lib ${HARVEST_TARGET}/blosc/lib/libblosc_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/boost.cmake
+++ b/build_files/build_environment/cmake/boost.cmake
@@ -1,80 +1,109 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(BOOST_ADDRESS_MODEL 64)

 if(WIN32)
-  set(BOOST_CONFIGURE_COMMAND bootstrap.bat)
-  set(BOOST_BUILD_COMMAND b2)
-  set(BOOST_BUILD_OPTIONS runtime-link=shared )
-  set(BOOST_HARVEST_CMD   ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/lib/ ${HARVEST_TARGET}/boost/lib/ )
-  if(BUILD_MODE STREQUAL Release)
-    set(BOOST_HARVEST_CMD ${BOOST_HARVEST_CMD} && ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/include/boost-${BOOST_VERSION_NODOTS_SHORT}/ ${HARVEST_TARGET}/boost/include/)
-  endif()
-elseif(APPLE)
-  set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
-  set(BOOST_BUILD_COMMAND ./b2)
-  set(BOOST_BUILD_OPTIONS toolset=clang-darwin cxxflags=${PLATFORM_CXXFLAGS} linkflags=${PLATFORM_LDFLAGS} visibility=global --disable-icu boost.locale.icu=off)
-  set(BOOST_HARVEST_CMD echo .)
-  set(BOOST_PATCH_COMMAND echo .)
-else()
-  set(BOOST_HARVEST_CMD echo .)
-  set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
-  set(BOOST_BUILD_COMMAND ./b2)
-  set(BOOST_BUILD_OPTIONS cxxflags=${PLATFORM_CXXFLAGS} --disable-icu boost.locale.icu=off)
-  set(BOOST_PATCH_COMMAND echo .)
-endif()
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(PYTHON_ARCH x64)
+		set(PYTHON_ARCH2 win-AMD64)
+		set(PYTHON_OUTPUTDIR ${BUILD_DIR}/python/src/external_python/pcbuild/amd64/)
+	else()
+		set(PYTHON_ARCH x86)
+		set(PYTHON_ARCH2 win32)
+		set(PYTHON_OUTPUTDIR ${BUILD_DIR}/python/src/external_python/pcbuild/win32/)
+		set(BOOST_ADDRESS_MODEL 32)
+	endif()
+	if(MSVC14)
+		set(BOOST_TOOLSET toolset=msvc-14.0)
+		set(BOOST_COMPILER_STRING -vc140)
+	endif()
+	set(JAM_FILE ${BUILD_DIR}/boost/src/external_boost/user-config.jam)
+	set(semi_path "${PATCH_DIR}/semi.txt")
+	FILE(TO_NATIVE_PATH ${semi_path} semi_path)
+	set(BOOST_CONFIGURE_COMMAND bootstrap.bat &&
+								echo using python : ${PYTHON_OUTPUTDIR}\\python.exe > "${JAM_FILE}" &&
+								echo.   : ${BUILD_DIR}/python/src/external_python/include ${BUILD_DIR}/python/src/external_python/pc >> "${JAM_FILE}" &&
+								echo.   : ${BUILD_DIR}/python/src/external_python/pcbuild >> "${JAM_FILE}" &&
+								type ${semi_path} >> "${JAM_FILE}"
+	)
+	set(BOOST_BUILD_COMMAND bjam)
+	#--user-config=user-config.jam
+	set(BOOST_BUILD_OPTIONS runtime-link=static )
+	#set(BOOST_WITH_PYTHON --with-python)
+	set(BOOST_HARVEST_CMD 	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/lib/ ${HARVEST_TARGET}/boost/lib/ )
+	if(BUILD_MODE STREQUAL Release)
+		set(BOOST_HARVEST_CMD ${BOOST_HARVEST_CMD} && ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/include/boost-1_68/ ${HARVEST_TARGET}/boost/include/)
+	endif()

-if(WITH_BOOST_PYTHON)
-  set(JAM_FILE ${BUILD_DIR}/boost.user-config.jam)
-  configure_file(${PATCH_DIR}/boost.user.jam.in ${JAM_FILE})
-  set(BOOST_PYTHON_OPTIONS
-    --with-python
-    --user-config=${JAM_FILE}
-  )
-  if(WIN32 AND BUILD_MODE STREQUAL Debug)
-    set(BOOST_PYTHON_OPTIONS
-      ${BOOST_PYTHON_OPTIONS}
-      define=BOOST_DEBUG_PYTHON
-    )
-  endif()
+elseif(APPLE)
+	set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
+	set(BOOST_BUILD_COMMAND ./b2)
+	set(BOOST_BUILD_OPTIONS toolset=darwin cxxflags=${PLATFORM_CXXFLAGS} linkflags=${PLATFORM_LDFLAGS} --disable-icu boost.locale.icu=off)
+	set(BOOST_HARVEST_CMD echo .)
+	set(BOOST_PATCH_COMMAND echo .)
+else()
+	set(BOOST_HARVEST_CMD echo .)
+	set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
+	set(BOOST_BUILD_COMMAND ./b2)
+	set(BOOST_BUILD_OPTIONS cxxflags=${PLATFORM_CXXFLAGS} --disable-icu boost.locale.icu=off)
+	set(BOOST_PATCH_COMMAND echo .)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(BOOST_ADDRESS_MODEL 64)
+	else()
+		set(BOOST_ADDRESS_MODEL 32)
+	endif()
 endif()

 set(BOOST_OPTIONS
-  --with-filesystem
-  --with-locale
-  --with-thread
-  --with-regex
-  --with-system
-  --with-date_time
-  --with-wave
-  --with-atomic
-  --with-serialization
-  --with-program_options
-  --with-iostreams
-  -sNO_BZIP2=1
-  -sNO_LZMA=1
-  -sNO_ZSTD=1
-  ${BOOST_TOOLSET}
-  ${BOOST_PYTHON_OPTIONS}
+	--with-filesystem
+	--with-locale
+	--with-thread
+	--with-regex
+	--with-system
+	--with-date_time
+	--with-wave
+	--with-atomic
+	--with-serialization
+	--with-program_options
+	--with-iostreams
+	${BOOST_WITH_PYTHON}
+	${BOOST_TOOLSET}
 )

 string(TOLOWER ${BUILD_MODE} BOOST_BUILD_TYPE)

 ExternalProject_Add(external_boost
-  URL file://${PACKAGE_DIR}/${BOOST_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BOOST_HASH_TYPE}=${BOOST_HASH}
-  PREFIX ${BUILD_DIR}/boost
-  UPDATE_COMMAND  ""
-  PATCH_COMMAND ${BOOST_PATCH_COMMAND}
-  CONFIGURE_COMMAND ${BOOST_CONFIGURE_COMMAND}
-  BUILD_COMMAND ${BOOST_BUILD_COMMAND} ${BOOST_BUILD_OPTIONS} -j${MAKE_THREADS} architecture=${BOOST_ARCHITECTURE} address-model=${BOOST_ADDRESS_MODEL} link=static threading=multi ${BOOST_OPTIONS}    --prefix=${LIBDIR}/boost install
-  BUILD_IN_SOURCE 1
-  INSTALL_COMMAND "${BOOST_HARVEST_CMD}"
+	URL ${BOOST_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${BOOST_HASH}
+	PREFIX ${BUILD_DIR}/boost
+	UPDATE_COMMAND	""
+	PATCH_COMMAND ${BOOST_PATCH_COMMAND}
+	CONFIGURE_COMMAND ${BOOST_CONFIGURE_COMMAND}
+	BUILD_COMMAND ${BOOST_BUILD_COMMAND} ${BOOST_BUILD_OPTIONS} -j${MAKE_THREADS} architecture=x86 address-model=${BOOST_ADDRESS_MODEL} link=static threading=multi ${BOOST_OPTIONS}	--prefix=${LIBDIR}/boost install
+	BUILD_IN_SOURCE 1
+	INSTALL_COMMAND "${BOOST_HARVEST_CMD}"
 )

-if(WITH_BOOST_PYTHON)
-  add_dependencies(
-    external_boost
-    external_python
-    external_numpy
-  )
+if(WIN32)
+	add_dependencies(
+		external_boost
+		Make_Python_Environment
+	)
 endif()
--- a/build_files/build_environment/cmake/boost_build_options.cmake
+++ b/build_files/build_environment/cmake/boost_build_options.cmake
@@ -1,30 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(BOOST_ADDRESS_MODEL 64)
-if(BLENDER_PLATFORM_ARM)
-  set(BOOST_ARCHITECTURE arm)
-else()
-  set(BOOST_ARCHITECTURE x86)
-endif()
-
-if(WIN32)
-  if(MSVC_VERSION GREATER_EQUAL 1920) # 2019
-    set(BOOST_TOOLSET toolset=msvc-14.2)
-    set(BOOST_COMPILER_STRING -vc142)
-  else() # 2017
-    set(BOOST_TOOLSET toolset=msvc-14.1)
-    set(BOOST_COMPILER_STRING -vc141)
-  endif()
-endif()
-
-set(DEFAULT_BOOST_FLAGS
-  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
-  -DBoost_USE_MULTITHREADED=ON
-  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
-  -DBOOST_ROOT=${LIBDIR}/boost
-  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
-  -DBoost_ADDITIONAL_VERSIONS=${BOOST_VERSION_SHORT}
-  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
-)
--- a/build_files/build_environment/cmake/brotli.cmake
+++ b/build_files/build_environment/cmake/brotli.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(BROTLI_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_brotli
-  URL file://${PACKAGE_DIR}/${BROTLI_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BROTLI_HASH_TYPE}=${BROTLI_HASH}
-  PREFIX ${BUILD_DIR}/brotli
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/brotli ${DEFAULT_CMAKE_FLAGS} ${BROTLI_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/brotli
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_brotli after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/brotli/include ${HARVEST_TARGET}/brotli/include
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/brotli/lib/brotlidec-static${LIBEXT} ${HARVEST_TARGET}/brotli/lib/brotlidec-static${LIBEXT}
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/brotli/lib/brotlicommon-static${LIBEXT} ${HARVEST_TARGET}/brotli/lib/brotlicommon-static${LIBEXT}
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/bzip2.cmake
+++ b/build_files/build_environment/cmake/bzip2.cmake
@@ -1,25 +1,39 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(BZIP2_PREFIX "${LIBDIR}/bzip2")
 set(BZIP2_CONFIGURE_ENV echo .)
 set(BZIP2_CONFIGURATION_ARGS)

 if(UNIX AND NOT APPLE)
-  set(BZIP2_LDFLAGS "-Wl,--as-needed")
-  set(BZIP2_CFLAGS "-fPIC -Wall -Winline -O2 -g -D_FILE_OFFSET_BITS=64")
-  set(BZIP2_CONFIGURE_ENV ${BZIP2_CONFIGURE_ENV} && export LDFLAGS=${BZIP2_LDFLAGS} && export CFLAGS=${BZIP2_CFLAGS}
-    && export PREFIX=${BZIP2_PREFIX})
-else()
-  set(BZIP2_CONFIGURE_ENV ${CONFIGURE_ENV})
+	set(BZIP2_LDFLAGS "-Wl,--as-needed")
+	set(BZIP2_CFLAGS "-fPIC -Wall -Winline -O2 -g -D_FILE_OFFSET_BITS=64")
+	set(BZIP2_CONFIGURE_ENV ${BZIP2_CONFIGURE_ENV} && export LDFLAGS=${BZIP2_LDFLAGS} && export CFLAGS=${BZIP2_CFLAGS}
+		&& export PREFIX=${BZIP2_PREFIX})
 endif()

 ExternalProject_Add(external_bzip2
-  URL file://${PACKAGE_DIR}/${BZIP2_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BZIP2_HASH_TYPE}=${BZIP2_HASH}
-  PREFIX ${BUILD_DIR}/bzip2
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND ${BZIP2_CONFIGURE_ENV} && cd ${BUILD_DIR}/bzip2/src/external_bzip2/ && make CFLAGS=${BZIP2_CFLAGS} LDFLAGS=${BZIP2_LDFLAGS} -j${MAKE_THREADS}
-  INSTALL_COMMAND ${BZIP2_CONFIGURE_ENV} && cd ${BUILD_DIR}/bzip2/src/external_bzip2/ && make CFLAGS=${BZIP2_CFLAGS} LDFLAGS=${BZIP2_LDFLAGS} PREFIX=${BZIP2_PREFIX} install
-  INSTALL_DIR ${LIBDIR}/bzip2
+	URL ${BZIP2_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${BZIP2_HASH}
+	PREFIX ${BUILD_DIR}/bzip2
+	CONFIGURE_COMMAND echo .
+	BUILD_COMMAND ${BZIP2_CONFIGURE_ENV} && cd ${BUILD_DIR}/bzip2/src/external_bzip2/ && make CFLAGS=${BZIP2_CFLAGS} LDFLAGS=${BZIP2_LDFLAGS} -j${MAKE_THREADS}
+	INSTALL_COMMAND ${BZIP2_CONFIGURE_ENV} && cd ${BUILD_DIR}/bzip2/src/external_bzip2/ && make CFLAGS=${BZIP2_CFLAGS} LDFLAGS=${BZIP2_LDFLAGS} PREFIX=${BZIP2_PREFIX} install
+	INSTALL_DIR ${LIBDIR}/bzip2
 )
--- a/build_files/build_environment/cmake/check_software.cmake
+++ b/build_files/build_environment/cmake/check_software.cmake
@@ -1,58 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(UNIX)
-  if(APPLE)
-    set(_libtoolize_name glibtoolize)
-  else()
-    set(_libtoolize_name libtoolize)
-  endif()
-
-  set(_required_software
-    autoconf
-    automake
-    bison
-    ${_libtoolize_name}
-    meson
-    ninja
-    pkg-config
-    tclsh
-    yasm
-  )
-
-  foreach(_software ${_required_software})
-    find_program(_software_find NAMES ${_software})
-    if(NOT _software_find)
-      set(_software_missing "${_software_missing}${_software} ")
-    endif()
-    unset(_software_find CACHE)
-  endforeach()
-
-  if(APPLE)
-    # Homebrew has different default locations for ARM and Intel macOS.
-    if("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "arm64")
-      set(HOMEBREW_LOCATION "/opt/homebrew")
-    else()
-      set(HOMEBREW_LOCATION "/usr/local")
-    endif()
-    if(NOT EXISTS "${HOMEBREW_LOCATION}/opt/bison/bin/bison")
-      string(APPEND _software_missing " bison")
-    endif()
-  endif()
-
-  if(_software_missing)
-    message(
-      "\n"
-      "Missing software for building Blender dependencies:\n"
-      "  ${_software_missing}\n"
-      "\n"
-      "On Debian and Ubuntu:\n"
-      "  apt install autoconf automake bison libtool yasm tcl ninja-build meson python3-mako\n"
-      "\n"
-      "On macOS (with homebrew):\n"
-      "  brew install autoconf automake bison flex libtool meson ninja pkg-config yasm\n"
-      "\n"
-      "Other platforms:\n"
-      "  Install equivalent packages.\n")
-    message(FATAL_ERROR "Install missing software before continuing")
-  endif()
-endif()
--- a/build_files/build_environment/cmake/clang.cmake
+++ b/build_files/build_environment/cmake/clang.cmake
@@ -0,0 +1,63 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CLANG_EXTRA_ARGS
+	-DCLANG_PATH_TO_LLVM_SOURCE=${BUILD_DIR}/ll/src/ll
+	-DCLANG_PATH_TO_LLVM_BUILD=${LIBDIR}/llvm
+	-DLLVM_USE_CRT_RELEASE=MT
+	-DLLVM_USE_CRT_DEBUG=MTd
+	-DLLVM_CONFIG=${LIBDIR}/llvm/bin/llvm-config
+)
+
+if(WIN32)
+	set(CLANG_GENERATOR "Ninja")
+else()
+	set(CLANG_GENERATOR "Unix Makefiles")
+endif()
+
+
+ExternalProject_Add(external_clang
+	URL ${CLANG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CLANG_HASH}
+	PREFIX ${BUILD_DIR}/clang
+	CMAKE_GENERATOR ${CLANG_GENERATOR}
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clang ${DEFAULT_CMAKE_FLAGS} ${CLANG_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/clang
+)
+
+if(MSVC)
+	if(BUILD_MODE STREQUAL Release)
+		set(CLANG_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/ ${HARVEST_TARGET}/llvm/)
+	else()
+		set(CLANG_HARVEST_COMMAND
+			${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/lib/ ${HARVEST_TARGET}/llvm/debug/lib/ &&
+			${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/bin/ ${HARVEST_TARGET}/llvm/debug/bin/ &&
+			${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/include/ ${HARVEST_TARGET}/llvm/debug/include/
+		)
+	endif()
+	ExternalProject_Add_Step(external_clang after_install
+		COMMAND ${CLANG_HARVEST_COMMAND}
+		DEPENDEES mkdir update patch download configure build install
+	)
+endif()
+
+add_dependencies(
+	external_clang
+	ll
+)
--- a/build_files/build_environment/cmake/clew.cmake
+++ b/build_files/build_environment/cmake/clew.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CLEW_EXTRA_ARGS)
+
+ExternalProject_Add(external_clew
+	URL ${CLEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CLEW_HASH}
+	PREFIX ${BUILD_DIR}/clew
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CLEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/clew
+)
--- a/build_files/build_environment/cmake/cuew.cmake
+++ b/build_files/build_environment/cmake/cuew.cmake
@@ -0,0 +1,29 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CUEW_EXTRA_ARGS)
+
+ExternalProject_Add(external_cuew
+	URL ${CUEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CUEW_HASH}
+	PREFIX ${BUILD_DIR}/cuew
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/cuew/src/external_cuew < ${PATCH_DIR}/cuew.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/cuew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CUEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/cuew
+)
--- a/build_files/build_environment/cmake/cve_check.cmake
+++ b/build_files/build_environment/cmake/cve_check.cmake
@@ -1,75 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# CVE Check requirements
-#
-# - A working installation of intels cve-bin-tool [1] has to be available in
-#   your path
-#
-# - Not strictly required, but highly recommended is obtaining a NVD key from
-#   nist since it significantly speeds up downloading/updating the required
-#   databases one can request a key on the following website:
-#   https://nvd.nist.gov/developers/request-an-api-key
-
-# Bill of Materials construction
-#
-# This constructs a CSV cve-bin-tool [1] can read and process. Sadly
-# cve-bin-tool at this point does not take a list of CPE's and output a check
-# based on that list. so we need to pick apart the CPE retrieve the vendor,
-# product and version tokens and generate a CSV.
-#
-# [1] https://github.com/intel/cve-bin-tool
-
-# Because not all deps are downloaded (ie python packages) but can still have a
-# xxx_CPE declared loop over all variables and look for variables ending in CPE.
-
-set(SBOMCONTENTS)
-get_cmake_property(_variableNames VARIABLES)
-foreach (_variableName ${_variableNames})
-  if(_variableName MATCHES "CPE$")
-      string(REPLACE ":" ";" CPE_LIST ${${_variableName}})
-      string(REPLACE "_CPE" "_ID" CPE_DEPNAME ${_variableName})
-      list(GET CPE_LIST 3 CPE_VENDOR)
-      list(GET CPE_LIST 4 CPE_NAME)
-      list(GET CPE_LIST 5 CPE_VERSION)
-      set(${CPE_DEPNAME} "${CPE_VENDOR},${CPE_NAME},${CPE_VERSION}")
-      set(SBOMCONTENTS "${SBOMCONTENTS}${CPE_VENDOR},${CPE_NAME},${CPE_VERSION},,,\n")
-  endif()
-endforeach()
-configure_file(${CMAKE_SOURCE_DIR}/cmake/cve_check.csv.in ${CMAKE_CURRENT_BINARY_DIR}/cve_check.csv @ONLY)
-
-# Custom Targets
-#
-# This defines two new custom targets one could run in the build folder
-# `cve_check` which will output the report to the console, and `cve_check_html`
-# which will write out blender_dependencies.html in the build folder that one
-# could share with other people or be used to get more information on the
-# reported CVE's.
-#
-# cve-bin-tool takes data from the nist nvd database which rate limits
-# unauthenticated requests to 1 requests per 6 seconds making the database
-# download take "quite a bit" of time.
-#
-# When adding -DCVE_CHECK_NVD_KEY=your_api_key_here to your cmake invocation
-# this key will be passed on to cve-bin-tool speeding up the process.
-#
-if(DEFINED CVE_CHECK_NVD_KEY)
-  set(NVD_ARGS --nvd-api-key ${CVE_CHECK_NVD_KEY})
-endif()
-
-# This will just report to the console
-add_custom_target(cve_check
-  COMMAND cve-bin-tool
-    ${NVD_ARGS}
-    -i ${CMAKE_CURRENT_BINARY_DIR}/cve_check.csv
-    --affected-versions
-  SOURCES ${CMAKE_CURRENT_BINARY_DIR}/cve_check.csv
-)
-
-# This will write out blender_dependencies.html
-add_custom_target(cve_check_html
-  COMMAND cve-bin-tool
-    ${NVD_ARGS}
-    -i ${CMAKE_CURRENT_BINARY_DIR}/cve_check.csv
-    -f html
-  SOURCES ${CMAKE_CURRENT_BINARY_DIR}/cve_check.csv
-)
--- a/build_files/build_environment/cmake/cve_check.csv.in
+++ b/build_files/build_environment/cmake/cve_check.csv.in
@@ -1,29 +0,0 @@
-vendor,product,version,cve_number,remarks,comment
-@OPENJPEG_ID@,CVE-2016-9675,Ignored,issue in convert command line tool not used by blender
-@PYTHON_ID@,CVE-2009-2940,Ignored,issue in pygresql not used by blender
-@PYTHON_ID@,CVE-2020-29396,Ignored,issue in odoo not used by blender
-@PYTHON_ID@,CVE-2021-32052,Ignored,issue in django not used by blender
-@PYTHON_ID@,CVE-2009-3720,Ignored,already fixed in libexpat version used
-@SSL_ID@,CVE-2009-1390,Ignored,issue in mutt not used by blender
-@SSL_ID@,CVE-2009-3765,Ignored,issue in mutt not used by blender
-@SSL_ID@,CVE-2009-3766,Ignored,issue in mutt not used by blender
-@SSL_ID@,CVE-2009-3767,Ignored,issue in ldap not used by blender
-@SSL_ID@,CVE-2019-0190,Ignored,issue in apache not used by blender
-@TIFF_ID@,CVE-2022-2056,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2057,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2058,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2519,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2520,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2521,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-2953,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-34526,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3570,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3597,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3598,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3599,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3626,Ignored,issue in tiff command line tool not used by blender
-@TIFF_ID@,CVE-2022-3627,Ignored,issue in tiff command line tool not used by blender
-@XML2_ID@,CVE-2016-3709,Ignored,not affecting blender and not considered a security issue upstream
-@GMP_ID@,CVE-2021-43618,Mitigated,patched using upstream commit 561a9c25298e
-@SQLITE_ID@,CVE-2022-35737,Ignored,only affects SQLITE_ENABLE_STAT4 compile option not used by blender or python
-@SBOMCONTENTS@
--- a/build_files/build_environment/cmake/download.cmake
+++ b/build_files/build_environment/cmake/download.cmake
@@ -1,165 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-## Update and uncomment this in the release branch
-# set(BLENDER_VERSION 3.1)
-
-function(download_source dep)
-  set(TARGET_FILE ${${dep}_FILE})
-  set(TARGET_HASH_TYPE ${${dep}_HASH_TYPE})
-  set(TARGET_HASH ${${dep}_HASH})
-  if(PACKAGE_USE_UPSTREAM_SOURCES)
-    set(TARGET_URI  ${${dep}_URI})
-  elseif(BLENDER_VERSION)
-    set(TARGET_URI  https://svn.blender.org/svnroot/bf-blender/tags/blender-${BLENDER_VERSION}-release/lib/packages/${TARGET_FILE})
-  else()
-    set(TARGET_URI  https://svn.blender.org/svnroot/bf-blender/trunk/lib/packages/${TARGET_FILE})
-  endif()
-  # Validate all required variables are set and give an explicit error message
-  # rather than CMake erroring out later on with a more ambigious error.
-  if (NOT DEFINED TARGET_FILE)
-    message(FATAL_ERROR "${dep}_FILE variable not set")
-  endif()
-  if (NOT DEFINED TARGET_HASH)
-    message(FATAL_ERROR "${dep}_HASH variable not set")
-  endif()
-  if (NOT DEFINED TARGET_HASH_TYPE)
-    message(FATAL_ERROR "${dep}_HASH_TYPE variable not set")
-  endif()
-  if (NOT DEFINED TARGET_URI)
-    message(FATAL_ERROR "${dep}_URI variable not set")
-  endif()
-  set(TARGET_FILE ${PACKAGE_DIR}/${TARGET_FILE})
-  message("Checking source : ${dep} (${TARGET_FILE})")
-  if(NOT EXISTS ${TARGET_FILE})
-    message("Checking source : ${dep} - source not found downloading from ${TARGET_URI}")
-    file(DOWNLOAD ${TARGET_URI} ${TARGET_FILE}
-         TIMEOUT 1800  # seconds
-         EXPECTED_HASH ${TARGET_HASH_TYPE}=${TARGET_HASH}
-         TLS_VERIFY ON
-         SHOW_PROGRESS
-        )
-  endif()
-  if(EXISTS ${TARGET_FILE})
-    # Sometimes the download fails, but that is not a
-    # fail condition for "file(DOWNLOAD" it will warn about
-    # a crc mismatch and just carry on, we need to explicitly
-    # catch this and remove the bogus 0 byte file so we can
-    # retry without having to go find the file and manually
-    # delete it.
-    file (SIZE ${TARGET_FILE} TARGET_SIZE)
-    if(${TARGET_SIZE} EQUAL 0)
-      file(REMOVE ${TARGET_FILE})
-      message(FATAL_ERROR "for ${TARGET_FILE} file size 0, download likely failed, deleted...")
-    endif()
-
-    # If we are using sources from the blender repo also
-    # validate that the hashes match, this takes a
-    # little more time, but protects us when we are
-    # building a release package and one of the packages
-    # is missing or incorrect.
-    #
-    # For regular platform maintenaince this is not needed
-    # since the actual build of the dep will notify the
-    # platform maintainer if there is a problem with the
-    # source package and refuse to build.
-    if(NOT PACKAGE_USE_UPSTREAM_SOURCES OR FORCE_CHECK_HASH)
-      file(${TARGET_HASH_TYPE} ${TARGET_FILE} LOCAL_HASH)
-      if(NOT ${TARGET_HASH} STREQUAL ${LOCAL_HASH})
-        message(FATAL_ERROR "${TARGET_FILE} ${TARGET_HASH_TYPE} mismatch\nExpected\t: ${TARGET_HASH}\nActual\t: ${LOCAL_HASH}")
-      endif()
-    endif()
-  endif()
-endfunction(download_source)
-
-download_source(ZLIB)
-download_source(OPENAL)
-download_source(PNG)
-download_source(JPEG)
-download_source(BOOST)
-download_source(BLOSC)
-download_source(PTHREADS)
-download_source(OPENEXR)
-download_source(FREETYPE)
-download_source(EPOXY)
-download_source(FREEGLUT)
-download_source(ALEMBIC)
-download_source(OPENSUBDIV)
-download_source(SDL)
-download_source(OPENCOLLADA)
-download_source(OPENCOLORIO)
-download_source(LLVM)
-download_source(OPENMP)
-download_source(OPENIMAGEIO)
-download_source(TIFF)
-download_source(OSL)
-download_source(PYTHON)
-download_source(TBB)
-download_source(OPENVDB)
-download_source(NUMPY)
-download_source(LAME)
-download_source(OGG)
-download_source(VORBIS)
-download_source(THEORA)
-download_source(FLAC)
-download_source(VPX)
-download_source(OPUS)
-download_source(X264)
-download_source(XVIDCORE)
-download_source(OPENJPEG)
-download_source(FFMPEG)
-download_source(FFTW)
-download_source(ICONV)
-download_source(SNDFILE)
-download_source(WEBP)
-download_source(SPNAV)
-download_source(JEMALLOC)
-download_source(XML2)
-download_source(YAMLCPP)
-download_source(EXPAT)
-download_source(PUGIXML)
-download_source(FLEXBISON)
-download_source(BZIP2)
-download_source(FFI)
-download_source(LZMA)
-download_source(SSL)
-download_source(SQLITE)
-download_source(EMBREE)
-download_source(USD)
-download_source(OIDN)
-download_source(LIBGLU)
-download_source(MESA)
-download_source(NASM)
-download_source(XR_OPENXR_SDK)
-download_source(WL_PROTOCOLS)
-download_source(WAYLAND)
-download_source(WAYLAND_LIBDECOR)
-download_source(ISPC)
-download_source(GMP)
-download_source(POTRACE)
-download_source(HARU)
-download_source(ZSTD)
-download_source(SSE2NEON)
-download_source(FLEX)
-download_source(BROTLI)
-download_source(FMT)
-download_source(ROBINMAP)
-download_source(IMATH)
-download_source(PYSTRING)
-download_source(OPENPGL)
-download_source(LEVEL_ZERO)
-download_source(DPCPP)
-download_source(VCINTRINSICS)
-download_source(OPENCLHEADERS)
-download_source(ICDLOADER)
-download_source(MP11)
-download_source(SPIRV_HEADERS)
-download_source(IGC)
-download_source(IGC_LLVM)
-download_source(IGC_OPENCL_CLANG)
-download_source(IGC_VCINTRINSICS)
-download_source(IGC_SPIRV_HEADERS)
-download_source(IGC_SPIRV_TOOLS)
-download_source(IGC_SPIRV_TRANSLATOR)
-download_source(GMMLIB)
-download_source(OCLOC)
-download_source(AOM)
--- a/build_files/build_environment/cmake/dpcpp.cmake
+++ b/build_files/build_environment/cmake/dpcpp.cmake
@@ -1,112 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-
-if(WIN32)
-  set(LLVM_GENERATOR "Ninja")
-else()
-  set(LLVM_GENERATOR "Unix Makefiles")
-endif()
-
-set(DPCPP_CONFIGURE_ARGS
-  # When external deps dpcpp needs are not found it will automatically
-  # download the during the configure stage using FetchContent. Given
-  # we need to keep an archive of all source used during build for compliance
-  # reasons it CANNOT download anything we do not know about. By setting
-  # this property to ON, all downloads are disabled, and we will have to
-  # provide the missing deps some other way, a build error beats a compliance
-  # violation
-  --cmake-opt FETCHCONTENT_FULLY_DISCONNECTED=ON
-)
-set(DPCPP_SOURCE_ROOT ${BUILD_DIR}/dpcpp/src/external_dpcpp/)
-set(DPCPP_EXTRA_ARGS
-  # When external deps dpcpp needs are not found it will automatically
-  # download the during the configure stage using FetchContent. Given
-  # we need to keep an archive of all source used during build for compliance
-  # reasons it CANNOT download anything we do not know about. By setting
-  # this property to ON, all downloads are disabled, and we will have to
-  # provide the missing deps some other way, a build or configure error
-  # beats a compliance violation
-  -DFETCHCONTENT_FULLY_DISCONNECTED=ON
-  -DLLVMGenXIntrinsics_SOURCE_DIR=${BUILD_DIR}/vcintrinsics/src/external_vcintrinsics/
-  -DOpenCL_HEADERS=file://${PACKAGE_DIR}/${OPENCLHEADERS_FILE}
-  -DOpenCL_LIBRARY_SRC=file://${PACKAGE_DIR}/${ICDLOADER_FILE}
-  -DBOOST_MP11_SOURCE_DIR=${BUILD_DIR}/mp11/src/external_mp11/
-  -DLEVEL_ZERO_LIBRARY=${LIBDIR}/level-zero/lib/${LIBPREFIX}ze_loader${SHAREDLIBEXT}
-  -DLEVEL_ZERO_INCLUDE_DIR=${LIBDIR}/level-zero/include
-  -DLLVM_EXTERNAL_SPIRV_HEADERS_SOURCE_DIR=${BUILD_DIR}/spirvheaders/src/external_spirvheaders/
-  # Below here is copied from an invocation of buildbot/config.py
-  -DLLVM_ENABLE_ASSERTIONS=ON
-  -DLLVM_TARGETS_TO_BUILD=X86
-  -DLLVM_EXTERNAL_PROJECTS=sycl^^llvm-spirv^^opencl^^libdevice^^xpti^^xptifw
-  -DLLVM_EXTERNAL_SYCL_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/sycl
-  -DLLVM_EXTERNAL_LLVM_SPIRV_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/llvm-spirv
-  -DLLVM_EXTERNAL_XPTI_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xpti
-  -DXPTI_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xpti
-  -DLLVM_EXTERNAL_XPTIFW_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xptifw
-  -DLLVM_EXTERNAL_LIBDEVICE_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/libdevice
-  -DLLVM_ENABLE_PROJECTS=clang^^sycl^^llvm-spirv^^opencl^^libdevice^^xpti^^xptifw
-  -DLIBCLC_TARGETS_TO_BUILD=
-  -DLIBCLC_GENERATE_REMANGLED_VARIANTS=OFF
-  -DSYCL_BUILD_PI_HIP_PLATFORM=AMD
-  -DLLVM_BUILD_TOOLS=ON
-  -DSYCL_ENABLE_WERROR=OFF
-  -DSYCL_INCLUDE_TESTS=ON
-  -DLLVM_ENABLE_DOXYGEN=OFF
-  -DLLVM_ENABLE_SPHINX=OFF
-  -DBUILD_SHARED_LIBS=OFF
-  -DSYCL_ENABLE_XPTI_TRACING=ON
-  -DLLVM_ENABLE_LLD=OFF
-  -DXPTI_ENABLE_WERROR=OFF
-  -DSYCL_CLANG_EXTRA_FLAGS=
-  -DSYCL_ENABLE_PLUGINS=level_zero
-  -DCMAKE_INSTALL_RPATH=\$ORIGIN
-  -DPython3_ROOT_DIR=${LIBDIR}/python/
-  -DPython3_EXECUTABLE=${PYTHON_BINARY}
-  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
-  -DLLDB_ENABLE_CURSES=OFF
-  -DLLVM_ENABLE_TERMINFO=OFF
-)
-
-if(WIN32)
-  list(APPEND DPCPP_EXTRA_ARGS -DPython3_FIND_REGISTRY=NEVER)
-endif()
-
-ExternalProject_Add(external_dpcpp
-  URL file://${PACKAGE_DIR}/${DPCPP_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${DPCPP_HASH_TYPE}=${DPCPP_HASH}
-  PREFIX ${BUILD_DIR}/dpcpp
-  CMAKE_GENERATOR ${LLVM_GENERATOR}
-  SOURCE_SUBDIR llvm
-  LIST_SEPARATOR ^^
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/dpcpp ${DEFAULT_CMAKE_FLAGS} ${DPCPP_EXTRA_ARGS}
-  # CONFIGURE_COMMAND
-  #   ${PYTHON_BINARY}
-  #   ${BUILD_DIR}/dpcpp/src/external_dpcpp/buildbot/configure.py ${DPCPP_CONFIGURE_ARGS}
-  # BUILD_COMMAND
-  #   echo "." # ${PYTHON_BINARY} ${BUILD_DIR}/dpcpp/src/external_dpcpp/buildbot/compile.py
-  INSTALL_COMMAND ${CMAKE_COMMAND} --build . -- deploy-sycl-toolchain
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/dpcpp/src/external_dpcpp < ${PATCH_DIR}/dpcpp.diff
-  INSTALL_DIR ${LIBDIR}/dpcpp
-)
-
-add_dependencies(
-  external_dpcpp
-  external_python
-  external_python_site_packages
-  external_vcintrinsics
-  external_openclheaders
-  external_icdloader
-  external_mp11
-  external_level-zero
-  external_spirvheaders
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_dpcpp after_install
-      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang-cl.exe
-      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang-cpp.exe
-      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang.exe
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/dpcpp ${HARVEST_TARGET}/dpcpp
-  )
-endif()
--- a/build_files/build_environment/cmake/dpcpp_deps.cmake
+++ b/build_files/build_environment/cmake/dpcpp_deps.cmake
@@ -1,61 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# These are build time requirements for dpcpp
-# We only have to unpack these dpcpp will build
-# them.
-
-ExternalProject_Add(external_vcintrinsics
-  URL file://${PACKAGE_DIR}/${VCINTRINSICS_FILE}
-  URL_HASH ${VCINTRINSICS_HASH_TYPE}=${VCINTRINSICS_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/vcintrinsics
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-)
-
-# opencl headers do not have to be unpacked, dpcpp will do it
-# but it wouldn't hurt to do it anyway as an opertunity to validate
-# the hash is correct.
-ExternalProject_Add(external_openclheaders
-  URL file://${PACKAGE_DIR}/${OPENCLHEADERS_FILE}
-  URL_HASH ${OPENCLHEADERS_HASH_TYPE}=${OPENCLHEADERS_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/openclheaders
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-)
-
-# icdloader does not have to be unpacked, dpcpp will do it
-# but it wouldn't hurt to do it anyway as an opertunity to validate
-# the hash is correct.
-ExternalProject_Add(external_icdloader
-  URL file://${PACKAGE_DIR}/${ICDLOADER_FILE}
-  URL_HASH ${ICDLOADER_HASH_TYPE}=${ICDLOADER_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/icdloader
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-)
-
-ExternalProject_Add(external_mp11
-  URL file://${PACKAGE_DIR}/${MP11_FILE}
-  URL_HASH ${MP11_HASH_TYPE}=${MP11_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/mp11
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-)
-
-ExternalProject_Add(external_spirvheaders
-  URL file://${PACKAGE_DIR}/${SPIRV_HEADERS_FILE}
-  URL_HASH ${SPIRV_HEADERS_HASH_TYPE}=${SPIRV_HEADERS_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/spirvheaders
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-)
--- a/build_files/build_environment/cmake/embree.cmake
+++ b/build_files/build_environment/cmake/embree.cmake
@@ -1,68 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# Note the utility apps may use png/tiff/gif system libraries, but the
-# library itself does not depend on them, so should give no problems.
-
-set(EMBREE_EXTRA_ARGS
-  -DEMBREE_ISPC_SUPPORT=OFF
-  -DEMBREE_TUTORIALS=OFF
-  -DEMBREE_STATIC_LIB=ON
-  -DEMBREE_RAY_MASK=ON
-  -DEMBREE_FILTER_FUNCTION=ON
-  -DEMBREE_BACKFACE_CULLING=OFF
-  -DEMBREE_TASKING_SYSTEM=TBB
-  -DEMBREE_TBB_ROOT=${LIBDIR}/tbb
-  -DTBB_ROOT=${LIBDIR}/tbb
-)
-
-if (NOT BLENDER_PLATFORM_ARM)
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_MAX_ISA=AVX2)
-endif()
-
-if(TBB_STATIC_LIBRARY)
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_TBB_COMPONENT=tbb_static
-  )
-endif()
-
-ExternalProject_Add(external_embree
-  URL file://${PACKAGE_DIR}/${EMBREE_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${EMBREE_HASH_TYPE}=${EMBREE_HASH}
-  PREFIX ${BUILD_DIR}/embree
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/embree/src/external_embree < ${PATCH_DIR}/embree.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/embree ${DEFAULT_CMAKE_FLAGS} ${EMBREE_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/embree
-)
-
-add_dependencies(
-  external_embree
-  external_tbb
-)
-
-if(WIN32)
-
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_embree after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/embree ${HARVEST_TARGET}/embree
-      DEPENDEES install
-    )
-  else()
-  ExternalProject_Add_Step(external_embree after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/embree3.lib ${HARVEST_TARGET}/embree/lib/embree3_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/embree_avx.lib ${HARVEST_TARGET}/embree/lib/embree_avx_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/embree_avx2.lib ${HARVEST_TARGET}/embree/lib/embree_avx2_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/embree_sse42.lib ${HARVEST_TARGET}/embree/lib/embree_sse42_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/lexers.lib ${HARVEST_TARGET}/embree/lib/lexers_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/math.lib ${HARVEST_TARGET}/embree/lib/math_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/simd.lib ${HARVEST_TARGET}/embree/lib/simd_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/sys.lib ${HARVEST_TARGET}/embree/lib/sys_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/embree/lib/tasking.lib ${HARVEST_TARGET}/embree/lib/tasking_d.lib
-      DEPENDEES install
-    )
-  endif()
-
-endif()
--- a/build_files/build_environment/cmake/epoxy.cmake
+++ b/build_files/build_environment/cmake/epoxy.cmake
@@ -1,25 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-if(WIN32)
-  set(EPOXY_LIB_TYPE shared)
-else()
-  set(EPOXY_LIB_TYPE static)
-endif()
-ExternalProject_Add(external_epoxy
-  URL file://${PACKAGE_DIR}/${EPOXY_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${EPOXY_HASH_TYPE}=${EPOXY_HASH}
-  PREFIX ${BUILD_DIR}/epoxy
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/epoxy/src/external_epoxy/ < ${PATCH_DIR}/epoxy.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && meson setup --prefix ${LIBDIR}/epoxy --default-library ${EPOXY_LIB_TYPE} --libdir lib ${BUILD_DIR}/epoxy/src/external_epoxy-build ${BUILD_DIR}/epoxy/src/external_epoxy -Dtests=false
-  BUILD_COMMAND ninja
-  INSTALL_COMMAND ninja install
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_epoxy after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/epoxy/include ${HARVEST_TARGET}/epoxy/include
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/epoxy/bin/epoxy-0.dll ${HARVEST_TARGET}/epoxy/bin/epoxy-0.dll
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/epoxy/lib/epoxy.lib ${HARVEST_TARGET}/epoxy/lib/epoxy.lib
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/expat.cmake
+++ b/build_files/build_environment/cmake/expat.cmake
@@ -1,19 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(EXPAT_EXTRA_ARGS
-  -DEXPAT_BUILD_DOCS=OFF
-  -DEXPAT_BUILD_EXAMPLES=OFF
-  -DEXPAT_BUILD_TESTS=OFF
-  -DEXPAT_BUILD_TOOLS=OFF
-  -DEXPAT_SHARED_LIBS=OFF
-)
-
-ExternalProject_Add(external_expat
-  URL file://${PACKAGE_DIR}/${EXPAT_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${EXPAT_HASH_TYPE}=${EXPAT_HASH}
-  PREFIX ${BUILD_DIR}/expat
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/expat ${DEFAULT_CMAKE_FLAGS} ${EXPAT_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/expat
-  SOURCE_SUBDIR expat
-)
--- a/build_files/build_environment/cmake/faad.cmake
+++ b/build_files/build_environment/cmake/faad.cmake
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FAAD_EXTRA_ARGS)
+
+if (WIN32)
+	set(FAAD_EXTRA_CONFIGURE "utils\\win32\\ac2ver.exe" "faad2" "configure.ac" > libfaad\\win32_ver.h)
+else()
+	set(FAAD_EXTRA_CONFIGURE echo .)
+endif()
+
+ExternalProject_Add(external_faad
+	URL ${FAAD_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FAAD_HASH}
+	PREFIX ${BUILD_DIR}/faad
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && ${FAAD_EXTRA_CONFIGURE} && ${CONFIGURE_COMMAND} --disable-shared --enable-static --prefix=${LIBDIR}/faad
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && make install
+	INSTALL_DIR ${LIBDIR}/faad
+)
+
+if(MSVC)
+	set_target_properties(external_faad PROPERTIES FOLDER Mingw)
+endif()
--- a/build_files/build_environment/cmake/ffi.cmake
+++ b/build_files/build_environment/cmake/ffi.cmake
@@ -1,24 +1,40 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ffi
-  URL file://${PACKAGE_DIR}/${FFI_FILE}
-  URL_HASH ${FFI_HASH_TYPE}=${FFI_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/ffi
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ffi
-    --enable-shared=no
-    --enable-static=yes
-    --with-pic
-    --libdir=${LIBDIR}/ffi/lib/
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && make install
-  PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/ffi/src/external_ffi < ${PATCH_DIR}/ffi.diff
-  INSTALL_DIR ${LIBDIR}/ffi
+	URL ${FFI_URI}
+	URL_HASH SHA256=${FFI_HASH}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	PREFIX ${BUILD_DIR}/ffi
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ffi
+		--enable-shared=no
+		--enable-static=yes
+		--with-pic
+		--libdir=${LIBDIR}/ffi/lib/
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && make install
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/ffi/src/external_ffi < ${PATCH_DIR}/ffi.diff
+	INSTALL_DIR ${LIBDIR}/ffi
 )

-if(UNIX AND NOT APPLE)
-  ExternalProject_Add_Step(external_ffi after_install
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/ffi/lib/libffi.a ${LIBDIR}/ffi/lib/libffi_pic.a
-    DEPENDEES install
-  )
+if (UNIX AND NOT APPLE)
+	ExternalProject_Add_Step(external_ffi after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/ffi/lib/libffi.a ${LIBDIR}/ffi/lib/libffi_pic.a
+		DEPENDEES install
+	)
 endif()
--- a/build_files/build_environment/cmake/ffmpeg.cmake
+++ b/build_files/build_environment/cmake/ffmpeg.cmake
@@ -1,144 +1,151 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

-set(FFMPEG_CFLAGS "-I${mingw_LIBDIR}/lame/include -I${mingw_LIBDIR}/openjpeg/include/ -I${mingw_LIBDIR}/ogg/include -I${mingw_LIBDIR}/vorbis/include -I${mingw_LIBDIR}/theora/include -I${mingw_LIBDIR}/opus/include -I${mingw_LIBDIR}/vpx/include -I${mingw_LIBDIR}/x264/include -I${mingw_LIBDIR}/xvidcore/include -I${mingw_LIBDIR}/zlib/include -I${mingw_LIBDIR}/aom/include")
-set(FFMPEG_LDFLAGS "-L${mingw_LIBDIR}/lame/lib -L${mingw_LIBDIR}/openjpeg/lib -L${mingw_LIBDIR}/ogg/lib -L${mingw_LIBDIR}/vorbis/lib -L${mingw_LIBDIR}/theora/lib -L${mingw_LIBDIR}/opus/lib -L${mingw_LIBDIR}/vpx/lib -L${mingw_LIBDIR}/x264/lib -L${mingw_LIBDIR}/xvidcore/lib -L${mingw_LIBDIR}/zlib/lib -L${mingw_LIBDIR}/aom/lib")
+set(FFMPEG_CFLAGS "-I${mingw_LIBDIR}/lame/include -I${mingw_LIBDIR}/openjpeg/include/ -I${mingw_LIBDIR}/ogg/include -I${mingw_LIBDIR}/vorbis/include -I${mingw_LIBDIR}/theora/include -I${mingw_LIBDIR}/vpx/include -I${mingw_LIBDIR}/x264/include -I${mingw_LIBDIR}/xvidcore/include -I${mingw_LIBDIR}/zlib/include")
+set(FFMPEG_LDFLAGS "-L${mingw_LIBDIR}/lame/lib -L${mingw_LIBDIR}/openjpeg/lib -L${mingw_LIBDIR}/ogg/lib -L${mingw_LIBDIR}/vorbis/lib -L${mingw_LIBDIR}/theora/lib -L${mingw_LIBDIR}/vpx/lib -L${mingw_LIBDIR}/x264/lib -L${mingw_LIBDIR}/xvidcore/lib -L${mingw_LIBDIR}/zlib/lib")
 set(FFMPEG_EXTRA_FLAGS --pkg-config-flags=--static --extra-cflags=${FFMPEG_CFLAGS} --extra-ldflags=${FFMPEG_LDFLAGS})
-set(FFMPEG_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/openjpeg/lib/pkgconfig:${mingw_LIBDIR}/x264/lib/pkgconfig:${mingw_LIBDIR}/vorbis/lib/pkgconfig:${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR}:${mingw_LIBDIR}/vpx/lib/pkgconfig:${mingw_LIBDIR}/theora/lib/pkgconfig:${mingw_LIBDIR}/openjpeg/lib/pkgconfig:${mingw_LIBDIR}/opus/lib/pkgconfig:${mingw_LIBDIR}/aom/lib/pkgconfig:)
+set(FFMPEG_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/openjpeg/lib/pkgconfig:${mingw_LIBDIR}/x264/lib/pkgconfig:${mingw_LIBDIR}/vorbis/lib/pkgconfig:${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR})

 if(WIN32)
-  set(FFMPEG_ENV set ${FFMPEG_ENV} &&)
-  set(FFMPEG_EXTRA_FLAGS
-    ${FFMPEG_EXTRA_FLAGS}
-    --disable-static
-    --enable-shared
-    --enable-w32threads
-    --disable-pthreads
-    --enable-libopenjpeg
-    --disable-mediafoundation
-  )
+	set(FFMPEG_ENV set ${FFMPEG_ENV} &&)
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--disable-static
+		--enable-shared
+		--enable-w32threads
+		--disable-pthreads
+		--enable-libopenjpeg
+	)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+		set(FFMPEG_EXTRA_FLAGS
+			${FFMPEG_EXTRA_FLAGS}
+			--x86asmexe=yasm
+		)
+	endif()
 else()
-  set(FFMPEG_EXTRA_FLAGS
-    ${FFMPEG_EXTRA_FLAGS}
-    --enable-static
-    --disable-shared
-    --enable-libopenjpeg
-  )
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--enable-static
+		--disable-shared
+		--enable-libopenjpeg
+	)
 endif()

 if(APPLE)
-  set(FFMPEG_EXTRA_FLAGS
-    ${FFMPEG_EXTRA_FLAGS}
-    --target-os=darwin
-    --x86asmexe=${LIBDIR}/nasm/bin/nasm
-  )
-elseif(UNIX)
-  set(FFMPEG_EXTRA_FLAGS
-    ${FFMPEG_EXTRA_FLAGS}
-    --x86asmexe=${LIBDIR}/nasm/bin/nasm
-  )
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--target-os=darwin
+		)
 endif()

 ExternalProject_Add(external_ffmpeg
-  URL file://${PACKAGE_DIR}/${FFMPEG_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FFMPEG_HASH_TYPE}=${FFMPEG_HASH}
-  # OpenJpeg is compiled with pthread support on Linux, which is all fine and is what we
-  # want for maximum runtime performance, but due to static nature of that library we
-  # need to force ffmpeg to link against pthread, otherwise test program used by autoconf
-  # will fail. This patch does that in a way that is compatible with multiple distributions.
-  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/ffmpeg/src/external_ffmpeg < ${PATCH_DIR}/ffmpeg.diff
-  PREFIX ${BUILD_DIR}/ffmpeg
-  CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} &&
-    cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ &&
-    ${FFMPEG_ENV} ${CONFIGURE_COMMAND_NO_TARGET} ${FFMPEG_EXTRA_FLAGS}
-    --disable-lzma
-    --disable-avfilter
-    --disable-vdpau
-    --disable-bzlib
-    --disable-libgsm
-    --disable-libspeex
-    --enable-libvpx
-    --enable-libopus
-    --prefix=${LIBDIR}/ffmpeg
-    --enable-libtheora
-    --enable-libvorbis
-    --enable-zlib
-    --enable-stripping
-    --enable-runtime-cpudetect
-    --disable-vaapi
-    --disable-nonfree
-    --enable-gpl
-    --disable-postproc
-    --enable-libmp3lame
-    --disable-librtmp
-    --enable-libx264
-    --enable-libxvid
-    --enable-libaom
-    --disable-libopencore-amrnb
-    --disable-libopencore-amrwb
-    --disable-libdc1394
-    --disable-version3
-    --disable-debug
-    --enable-optimizations
-    --enable-ffplay
-    --disable-openssl
-    --disable-securetransport
-    --disable-indev=avfoundation
-    --disable-indev=qtkit
-    --disable-sdl2
-    --disable-gnutls
-    --disable-videotoolbox
-    --disable-libxcb
-    --disable-xlib
-    --disable-audiotoolbox
-    --disable-cuvid
-    --disable-nvenc
-    --disable-indev=jack
-    --disable-indev=alsa
-    --disable-outdev=alsa
-    --disable-crystalhd
-    --disable-sndio
-  BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make install
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ffmpeg ${DEFAULT_CMAKE_FLAGS}
-  INSTALL_DIR ${LIBDIR}/ffmpeg
+	URL ${FFMPEG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FFMPEG_HASH}
+	# OpenJpeg is compiled with pthread support on Linux, which is all fine and is what we
+	# want for maximum runtime performance, but due to static nature of that library we
+	# need to force ffmpeg to link against pthread, otherwise test program used by autoconf
+	# will fail. This patch does that in a way that is compatible with multiple distributions.
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/ffmpeg/src/external_ffmpeg < ${PATCH_DIR}/ffmpeg.diff
+	PREFIX ${BUILD_DIR}/ffmpeg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} &&
+		cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ &&
+		${FFMPEG_ENV} ${CONFIGURE_COMMAND_NO_TARGET} ${FFMPEG_EXTRA_FLAGS}
+		--disable-lzma
+		--disable-avfilter
+		--disable-vdpau
+		--disable-bzlib
+		--disable-libgsm
+		--disable-libspeex
+		--enable-libvpx
+		--prefix=${LIBDIR}/ffmpeg
+		--enable-libtheora
+		--enable-libvorbis
+		--enable-zlib
+		--enable-stripping
+		--enable-runtime-cpudetect
+		--disable-vaapi
+		--disable-nonfree
+		--enable-gpl
+		--disable-postproc
+		--enable-libmp3lame
+		--disable-librtmp
+		--enable-libx264
+		--enable-libxvid
+		--disable-libopencore-amrnb
+		--disable-libopencore-amrwb
+		--disable-libdc1394
+		--disable-version3
+		--disable-debug
+		--enable-optimizations
+		--disable-sse
+		--disable-ssse3
+		--enable-ffplay
+		--disable-openssl
+		--disable-securetransport
+		--disable-indev=avfoundation
+		--disable-indev=qtkit
+		--disable-sdl2
+		--disable-gnutls
+		--disable-videotoolbox
+		--disable-libxcb
+		--disable-xlib
+		--disable-audiotoolbox
+		--disable-cuvid
+		--disable-nvenc
+		--disable-indev=jack
+		--disable-indev=alsa
+		--disable-outdev=alsa
+		--disable-crystalhd
+	BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make install
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ffmpeg ${DEFAULT_CMAKE_FLAGS}
+	INSTALL_DIR ${LIBDIR}/ffmpeg
 )

 if(MSVC)
-  set_target_properties(external_ffmpeg PROPERTIES FOLDER Mingw)
+	set_target_properties(external_ffmpeg PROPERTIES FOLDER Mingw)
 endif()

 add_dependencies(
-  external_ffmpeg
-  external_zlib
-  external_openjpeg
-  external_xvidcore
-  external_x264
-  external_opus
-  external_vpx
-  external_theora
-  external_vorbis
-  external_ogg
-  external_lame
-  external_aom
+	external_ffmpeg
+	external_zlib
+	external_faad
+	external_openjpeg
+	external_xvidcore
+	external_x264
+	external_vpx
+	external_theora
+	external_vorbis
+	external_ogg
+	external_lame
 )
 if(WIN32)
-  add_dependencies(
-    external_ffmpeg
-    external_zlib_mingw
-  )
-endif()
-if(UNIX)
-  add_dependencies(
-    external_ffmpeg
-    external_nasm
-  )
+	add_dependencies(
+		external_ffmpeg
+		external_zlib_mingw
+	)
 endif()

 if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_ffmpeg after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/include ${HARVEST_TARGET}/ffmpeg/include
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/bin ${HARVEST_TARGET}/ffmpeg/lib
-    DEPENDEES install
-  )
+	ExternalProject_Add_Step(external_ffmpeg after_install
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/include ${HARVEST_TARGET}/ffmpeg/include
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/bin ${HARVEST_TARGET}/ffmpeg/lib
+		DEPENDEES install
+	)
 endif()
--- a/build_files/build_environment/cmake/fftw.cmake
+++ b/build_files/build_environment/cmake/fftw.cmake
@@ -1,36 +1,47 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FFTW_EXTRA_ARGS)

 if(WIN32)
-  set(FFTW3_PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/fftw3/src/external_fftw3 < ${PATCH_DIR}/fftw3.diff)
-  set(FFTW_EXTRA_ARGS --disable-static --enable-shared)
-  set(FFTW_INSTALL install-strip)
-else()
-  set(FFTW_EXTRA_ARGS --enable-static)
-  set(FFTW_INSTALL install)
+	set(FFTW3_ENV set CFLAGS=-fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fno-lto &&)
+	set(FFTW3_PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/fftw3/src/external_fftw3 < ${PATCH_DIR}/fftw3.diff)
 endif()

 ExternalProject_Add(external_fftw3
-  URL file://${PACKAGE_DIR}/${FFTW_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FFTW_HASH_TYPE}=${FFTW_HASH}
-  PREFIX ${BUILD_DIR}/fftw3
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && ${CONFIGURE_COMMAND} ${FFTW_EXTRA_ARGS} --prefix=${mingw_LIBDIR}/fftw3
-  PATCH_COMMAND ${FFTW3_PATCH_COMMAND}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make ${FFTW_INSTALL}
-  INSTALL_DIR ${LIBDIR}/fftw3
+	URL ${FFTW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FFTW_HASH}
+	PREFIX ${BUILD_DIR}/fftw3
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && ${FFTW3_ENV} cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/fftw3
+	PATCH_COMMAND ${FFTW3_PATCH_COMMAND}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make	-j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make install
+	INSTALL_DIR ${LIBDIR}/fftw3
 )

 if(MSVC)
-  set_target_properties(external_fftw3 PROPERTIES FOLDER Mingw)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_fftw3 after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/lib/libfftw3.dll.a ${HARVEST_TARGET}/fftw3/lib/libfftw.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/bin/libfftw3-3.dll ${HARVEST_TARGET}/fftw3/lib/libfftw3-3.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/include/fftw3.h ${HARVEST_TARGET}/fftw3/include/fftw3.h
-      DEPENDEES install
-    )
-  endif()
+	set_target_properties(external_fftw3 PROPERTIES FOLDER Mingw)
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_fftw3 after_install
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/lib/libfftw3.a ${HARVEST_TARGET}/fftw3/lib/libfftw.lib
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/include/fftw3.h ${HARVEST_TARGET}/fftw3/include/fftw3.h
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/flac.cmake
+++ b/build_files/build_environment/cmake/flac.cmake
@@ -1,16 +1,32 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_flac
-  URL file://${PACKAGE_DIR}/${FLAC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FLAC_HASH_TYPE}=${FLAC_HASH}
-  PREFIX ${BUILD_DIR}/flac
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flac --disable-shared --enable-static
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make install
-  INSTALL_DIR ${LIBDIR}/flac
+	URL ${FLAC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${FLAC_HASH}
+	PREFIX ${BUILD_DIR}/flac
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flac --disable-shared --enable-static
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make install
+	INSTALL_DIR ${LIBDIR}/flac
 )

 if(MSVC)
-  set_target_properties(external_flac PROPERTIES FOLDER Mingw)
+	set_target_properties(external_flac PROPERTIES FOLDER Mingw)
 endif()
--- a/build_files/build_environment/cmake/flex.cmake
+++ b/build_files/build_environment/cmake/flex.cmake
@@ -1,12 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-ExternalProject_Add(external_flex
-  URL file://${PACKAGE_DIR}/${FLEX_FILE}
-  URL_HASH ${FLEX_HASH_TYPE}=${FLEX_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/flex
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flex
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && make install
-  INSTALL_DIR ${LIBDIR}/flex
-)
--- a/build_files/build_environment/cmake/flexbison.cmake
+++ b/build_files/build_environment/cmake/flexbison.cmake
@@ -1,15 +1,31 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FLEXBISON_EXTRA_ARGS)

 ExternalProject_Add(external_flexbison
-  URL file://${PACKAGE_DIR}/${FLEXBISON_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FLEXBISON_HASH_TYPE}=${FLEXBISON_HASH}
-  PREFIX ${BUILD_DIR}/flexbison
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/flexbison ${DEFAULT_CMAKE_FLAGS} ${FLEXBISON_EXTRA_ARGS}
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/flexbison/src/external_flexbison/ ${LIBDIR}/flexbison/
-  INSTALL_DIR ${LIBDIR}/flexbison
+	URL ${FLEXBISON_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FLEXBISON_HASH}
+	PREFIX ${BUILD_DIR}/flexbison
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/flexbison ${DEFAULT_CMAKE_FLAGS} ${FLEXBISON_EXTRA_ARGS}
+	CONFIGURE_COMMAND echo .
+	BUILD_COMMAND echo .
+	INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/flexbison/src/external_flexbison/ ${LIBDIR}/flexbison/
+	INSTALL_DIR ${LIBDIR}/flexbison
 )
--- a/build_files/build_environment/cmake/fmt.cmake
+++ b/build_files/build_environment/cmake/fmt.cmake
@@ -1,14 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(FMT_EXTRA_ARGS
-  -DFMT_TEST=Off
-)
-
-ExternalProject_Add(external_fmt
-  URL file://${PACKAGE_DIR}/${FMT_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FMT_HASH_TYPE}=${FMT_HASH}
-  PREFIX ${BUILD_DIR}/fmt
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/fmt ${DEFAULT_CMAKE_FLAGS} ${FMT_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/fmt
-)
--- a/build_files/build_environment/cmake/freeglut.cmake
+++ b/build_files/build_environment/cmake/freeglut.cmake
@@ -1,19 +1,35 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    set(FREEGLUT_EXTRA_ARGS
-      -DFREEGLUT_BUILD_SHARED_LIBS=Off
-      -DFREEGLUT_BUILD_STATIC_LIBS=On
-    )
+	if(BUILD_MODE STREQUAL Release)
+		set(FREEGLUT_EXTRA_ARGS
+			-DFREEGLUT_BUILD_SHARED_LIBS=Off
+			-DFREEGLUT_BUILD_STATIC_LIBS=On
+		)

-    ExternalProject_Add(external_freeglut
-      URL file://${PACKAGE_DIR}/${FREEGLUT_FILE}
-      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      URL_HASH ${FREEGLUT_HASH_TYPE}=${FREEGLUT_HASH}
-      PREFIX ${BUILD_DIR}/freeglut
-      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freeglut ${DEFAULT_C_FLAGS} ${DEFAULT_CXX_FLAGS} ${FREEGLUT_EXTRA_ARGS}
-      INSTALL_DIR ${LIBDIR}/freeglut
-    )
-  endif()
+		ExternalProject_Add(external_freeglut
+			URL ${FREEGLUT_URI}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			URL_HASH MD5=${FREEGLUT_HASH}
+			PREFIX ${BUILD_DIR}/freeglut
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freeglut ${DEFAULT_C_FLAGS} ${DEFAULT_CXX_FLAGS} ${FREEGLUT_EXTRA_ARGS}
+			INSTALL_DIR ${LIBDIR}/freeglut
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/freetype.cmake
+++ b/build_files/build_environment/cmake/freetype.cmake
@@ -1,37 +1,44 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FREETYPE_EXTRA_ARGS
-  -DCMAKE_RELEASE_POSTFIX:STRING=2ST
-  -DCMAKE_DEBUG_POSTFIX:STRING=2ST_d
-  -DFT_DISABLE_BZIP2=ON
-  -DFT_DISABLE_HARFBUZZ=ON
-  -DFT_DISABLE_PNG=ON
-  -DFT_REQUIRE_BROTLI=ON
-  -DFT_REQUIRE_ZLIB=ON
-  -DPC_BROTLIDEC_INCLUDEDIR=${LIBDIR}/brotli/include
-  -DPC_BROTLIDEC_LIBDIR=${LIBDIR}/brotli/lib
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
-  )
+	-DCMAKE_RELEASE_POSTFIX:STRING=2ST
+	-DCMAKE_DEBUG_POSTFIX:STRING=2ST_d
+	-DWITH_BZip2=OFF
+	-DWITH_HarfBuzz=OFF
+	-DFT_WITH_HARFBUZZ=OFF
+	-DFT_WITH_BZIP2=OFF
+	-DCMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE
+	-DCMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE)

 ExternalProject_Add(external_freetype
-  URL file://${PACKAGE_DIR}/${FREETYPE_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FREETYPE_HASH_TYPE}=${FREETYPE_HASH}
-  PREFIX ${BUILD_DIR}/freetype
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freetype ${DEFAULT_CMAKE_FLAGS} ${FREETYPE_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/freetype
-)
-
-add_dependencies(
-  external_freetype
-  external_brotli
-  external_zlib
+	URL ${FREETYPE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FREETYPE_HASH}
+	PREFIX ${BUILD_DIR}/freetype
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freetype ${DEFAULT_CMAKE_FLAGS} ${FREETYPE_EXTRA_ARGS}
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/freetype/src/external_freetype < ${PATCH_DIR}/freetype.diff
+	INSTALL_DIR ${LIBDIR}/freetype
 )

 if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_freetype after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freetype ${HARVEST_TARGET}/freetype
-    DEPENDEES install
-  )
+	ExternalProject_Add_Step(external_freetype after_install
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freetype ${HARVEST_TARGET}/freetype
+		DEPENDEES install
+	)
 endif()
--- a/build_files/build_environment/cmake/glew.cmake
+++ b/build_files/build_environment/cmake/glew.cmake
@@ -0,0 +1,32 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(GLEW_EXTRA_ARGS
+	-DBUILD_UTILS=Off
+	-DBUILD_SHARED_LIBS=Off
+)
+
+ExternalProject_Add(external_glew
+	URL ${GLEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${GLEW_HASH}
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_glew.txt	${BUILD_DIR}/glew/src/external_glew/CMakeLists.txt
+	PREFIX ${BUILD_DIR}/glew
+	CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glew ${DEFAULT_CMAKE_FLAGS} ${GLEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/glew
+)
--- a/build_files/build_environment/cmake/glfw.cmake
+++ b/build_files/build_environment/cmake/glfw.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(GLFW_EXTRA_ARGS)
+
+ExternalProject_Add(external_glfw
+	URL ${GLFW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${GLFW_HASH}
+	PREFIX ${BUILD_DIR}/glfw
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glfw -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${GLFW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/glfw
+)
--- a/build_files/build_environment/cmake/gmmlib.cmake
+++ b/build_files/build_environment/cmake/gmmlib.cmake
@@ -1,13 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(GMMLIB_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_gmmlib
-  URL file://${PACKAGE_DIR}/${GMMLIB_FILE}
-  URL_HASH ${GMMLIB_HASH_TYPE}=${GMMLIB_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/gmmlib
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/gmmlib ${DEFAULT_CMAKE_FLAGS} ${GMMLIB_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/gmmlib
-)
--- a/build_files/build_environment/cmake/gmp.cmake
+++ b/build_files/build_environment/cmake/gmp.cmake
@@ -1,86 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(GMP_EXTRA_ARGS -enable-cxx)
-
-if(WIN32)
-  # Shared for windows because static libs will drag in a libgcc dependency.
-  set(GMP_OPTIONS --disable-static --enable-shared --enable-fat --host=x86_64-w64-mingw32 --build=x86_64-w64-mingw32)
-else()
-  set(GMP_OPTIONS --enable-static --disable-shared )
-endif()
-
-if(APPLE AND NOT BLENDER_PLATFORM_ARM)
-  set(GMP_OPTIONS
-    ${GMP_OPTIONS}
-    --with-pic
-  )
-elseif(UNIX AND NOT APPLE)
-  set(GMP_OPTIONS
-    ${GMP_OPTIONS}
-    --with-pic
-    --enable-fat
-  )
-endif()
-
-ExternalProject_Add(external_gmp
-  URL file://${PACKAGE_DIR}/${GMP_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${GMP_HASH_TYPE}=${GMP_HASH}
-  PREFIX ${BUILD_DIR}/gmp
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/gmp/src/external_gmp < ${PATCH_DIR}/gmp.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/gmp ${GMP_OPTIONS} ${GMP_EXTRA_ARGS}
-  BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && make install
-  INSTALL_DIR ${LIBDIR}/gmp
-)
-
-if(MSVC)
-  set_target_properties(external_gmp PROPERTIES FOLDER Mingw)
-endif()
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_gmp after_install
-      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-3.dll.def ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def
-      COMMAND  lib /def:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def /machine:x64 /out:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib
-      COMMAND  ${CMAKE_COMMAND} -E copy ${LIBDIR}/gmp/bin/libgmp-10.dll ${HARVEST_TARGET}/gmp/lib/libgmp-10.dll
-      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib ${HARVEST_TARGET}/gmp/lib/libgmp-10.lib
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/gmp/include ${HARVEST_TARGET}/gmp/include
-    DEPENDEES install
-  )
-endif()
-
-if(BUILD_MODE STREQUAL Debug AND WIN32)
-ExternalProject_Add_Step(external_gmp after_install
-      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-3.dll.def ${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def
-      COMMAND  lib /def:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.def /machine:x64 /out:${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib
-    DEPENDEES install
-  )
-endif()
-
-if(WIN32)
-  # gmpxx is somewhat special, it builds on top of the C style gmp library but exposes C++ bindings
-  # given the C++ ABI between MSVC and mingw is not compatible, we need to build the bindings
-  # with MSVC, while GMP can only be build with mingw.
-  ExternalProject_Add(external_gmpxx
-    URL file://${PACKAGE_DIR}/${GMP_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${GMP_HASH_TYPE}=${GMP_HASH}
-    PREFIX ${BUILD_DIR}/gmpxx
-    PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_gmpxx.txt ${BUILD_DIR}/gmpxx/src/external_gmpxx/CMakeLists.txt &&
-                          ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/config_gmpxx.h ${BUILD_DIR}/gmpxx/src/external_gmpxx/config.h
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/gmpxx ${DEFAULT_CMAKE_FLAGS} -DGMP_LIBRARY=${BUILD_DIR}/gmp/src/external_gmp/.libs/libgmp-10.lib -DGMP_INCLUDE_DIR=${BUILD_DIR}/gmp/src/external_gmp -DCMAKE_DEBUG_POSTFIX=_d
-    INSTALL_DIR ${LIBDIR}/gmpxx
-  )
-  set_target_properties(external_gmpxx PROPERTIES FOLDER Mingw)
-
-  add_dependencies(
-    external_gmpxx
-    external_gmp
-  )
-
-  ExternalProject_Add_Step(external_gmpxx after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/gmpxx/ ${HARVEST_TARGET}/gmp
-    DEPENDEES install
-  )
-
-endif()
--- a/build_files/build_environment/cmake/haru.cmake
+++ b/build_files/build_environment/cmake/haru.cmake
@@ -1,30 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(HARU_EXTRA_ARGS
-  -DLIBHPDF_SHARED=OFF
-  -DLIBHPDF_STATIC=ON
-  -DLIBHPDF_EXAMPLES=OFF
-  -DLIBHPDF_ENABLE_EXCEPTIONS=ON
-)
-
-ExternalProject_Add(external_haru
-  URL file://${PACKAGE_DIR}/${HARU_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${HARU_HASH_TYPE}=${HARU_HASH}
-  PREFIX ${BUILD_DIR}/haru
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/haru/src/external_haru < ${PATCH_DIR}/haru.diff
-  CMAKE_ARGS
-    -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/haru
-    ${DEFAULT_CMAKE_FLAGS} ${HARU_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/haru
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_haru after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/haru/include ${HARVEST_TARGET}/haru/include
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/haru/lib/libhpdfs.lib ${HARVEST_TARGET}/haru/lib/libhpdfs.lib
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/harvest.cmake
+++ b/build_files/build_environment/cmake/harvest.cmake
@@ -1,204 +1,195 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ########################################################################
-# Copy all generated files to the proper structure as blender prefers
+# Copy all generated files to the proper strucure as blender prefers
 ########################################################################

 if(NOT DEFINED HARVEST_TARGET)
-  set(HARVEST_TARGET ${CMAKE_CURRENT_SOURCE_DIR}/Harvest)
+	set(HARVEST_TARGET ${CMAKE_CURRENT_SOURCE_DIR}/Harvest)
 endif()
 message("HARVEST_TARGET = ${HARVEST_TARGET}")

 if(WIN32)
+if(BUILD_MODE STREQUAL Release)
+	add_custom_target(Harvest_Release_Results
+		COMMAND # jpeg rename libfile + copy include
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/jpg/lib/jpeg-static.lib ${HARVEST_TARGET}/jpeg/lib/libjpeg.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/jpg/include/ ${HARVEST_TARGET}/jpeg/include/ &&
+				# OpenImageIO
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/include ${HARVEST_TARGET}/OpenImageIO/include &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/lib ${HARVEST_TARGET}/OpenImageIO/lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/OpenImageIO/bin/idiff.exe ${HARVEST_TARGET}/OpenImageIO/bin/idiff.exe &&
+				# png
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_static.lib ${HARVEST_TARGET}/png/lib/libpng.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/png/include/ ${HARVEST_TARGET}/png/include/ &&
+				# freeglut-> opengl
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/freeglut/lib/freeglut_static.lib ${HARVEST_TARGET}/opengl/lib/freeglut_static.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freeglut/include/ ${HARVEST_TARGET}/opengl/include/ &&
+				# glew-> opengl
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/glew/lib/libglew32.lib ${HARVEST_TARGET}/opengl/lib/glew.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/glew/include/ ${HARVEST_TARGET}/opengl/include/ &&
+				# sndfile
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/lib/libsndfile.dll.a ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/bin/libsndfile-1.dll ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.dll &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/include/sndfile.h ${HARVEST_TARGET}/sndfile/include/sndfile.h &&
+				# tiff
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/tiff/lib/tiff.lib ${HARVEST_TARGET}/tiff/lib/libtiff.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tiff/include/ ${HARVEST_TARGET}/tiff/include/ &&
+				# BlendThumb
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb64/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb64.dll &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb32/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb.dll &&
+				# hidapi
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hidapi/ ${HARVEST_TARGET}/hidapi/ &&
+				# webp, straight up copy
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/webp ${HARVEST_TARGET}/webp
+		DEPENDS
+	)
+endif()

-  if(BUILD_MODE STREQUAL Release)
-    add_custom_target(Harvest_Release_Results
-      COMMAND # jpeg rename libfile + copy include
-      ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpeg/lib/jpeg-static.lib ${HARVEST_TARGET}/jpeg/lib/libjpeg.lib &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/jpeg/include/ ${HARVEST_TARGET}/jpeg/include/ &&
-      # png
-      ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_static.lib ${HARVEST_TARGET}/png/lib/libpng.lib &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/png/include/ ${HARVEST_TARGET}/png/include/ &&
-      # freeglut-> opengl
-      ${CMAKE_COMMAND} -E copy ${LIBDIR}/freeglut/lib/freeglut_static.lib ${HARVEST_TARGET}/opengl/lib/freeglut_static.lib &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freeglut/include/ ${HARVEST_TARGET}/opengl/include/ &&
-      DEPENDS
-    )
-  endif()
+if(BUILD_MODE STREQUAL Debug)
+	add_custom_target(Harvest_Debug_Results
+				# OpenImageIO
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_Util.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_Util_d.lib &&
+				# python
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/python/ ${HARVEST_TARGET}/python/ &&
+				# hdf5
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hdf5/lib ${HARVEST_TARGET}/hdf5/lib &&
+				# numpy
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}d.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}d.tar.gz &&
+				# python
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_d.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_d.tar.gz
+		DEPENDS Package_Python
+	)
+endif()

+else(WIN32)
+
+function(harvest from to)
+	set(pattern "")
+	foreach(f ${ARGN})
+		set(pattern ${f})
+	endforeach()
+
+	if(pattern STREQUAL "")
+		get_filename_component(dirpath ${to} DIRECTORY)
+		get_filename_component(filename ${to} NAME)
+		install(
+			FILES ${LIBDIR}/${from}
+			DESTINATION ${HARVEST_TARGET}/${dirpath}
+			RENAME ${filename})
+	else()
+		install(
+			DIRECTORY ${LIBDIR}/${from}/
+			DESTINATION ${HARVEST_TARGET}/${to}
+			USE_SOURCE_PERMISSIONS
+			FILES_MATCHING PATTERN ${pattern}
+			PATTERN "pkgconfig" EXCLUDE
+			PATTERN "cmake" EXCLUDE
+			PATTERN "clang" EXCLUDE
+			PATTERN "__pycache__" EXCLUDE
+			PATTERN "tests" EXCLUDE)
+	endif()
+endfunction()
+
+harvest(alembic/include alembic/include "*.h")
+harvest(alembic/lib/libAlembic.a alembic/lib/libAlembic.a)
+harvest(alembic/bin alembic/bin "*")
+harvest(boost/include boost/include "*")
+harvest(boost/lib boost/lib "*.a")
+harvest(ffmpeg/include ffmpeg/include "*.h")
+harvest(ffmpeg/lib ffmpeg/lib "*.a")
+harvest(fftw3/include fftw3/include "*.h")
+harvest(fftw3/lib fftw3/lib "*.a")
+harvest(flac/lib sndfile/lib "libFLAC.a")
+harvest(freetype/include freetype/include "*.h")
+harvest(freetype/lib/libfreetype2ST.a freetype/lib/libfreetype.a)
+harvest(glew/include glew/include "*.h")
+harvest(glew/lib glew/lib "*.a")
+harvest(ilmbase openexr "*")
+harvest(ilmbase/include openexr/include "*.h")
+harvest(jemalloc/include jemalloc/include "*.h")
+harvest(jemalloc/lib jemalloc/lib "*.a")
+harvest(jpg/include jpeg/include "*.h")
+harvest(jpg/lib jpeg/lib "libjpeg.a")
+harvest(lame/lib ffmpeg/lib "*.a")
+harvest(llvm/bin llvm/bin "llvm-config")
+harvest(llvm/lib llvm/lib "libLLVM*.a")
+harvest(ogg/lib ffmpeg/lib "*.a")
+harvest(openal/include openal/include "*.h")
+if(UNIX AND NOT APPLE)
+	harvest(openal/lib openal/lib "*.a")
+
+	harvest(blosc/include blosc/include "*.h")
+	harvest(blosc/lib blosc/lib "*.a")
+
+	harvest(zlib/include zlib/include "*.h")
+	harvest(zlib/lib zlib/lib "*.a")
+
+	harvest(xml2/include xml2/include "*.h")
+	harvest(xml2/lib xml2/lib "*.a")
 else()
-
-  function(harvest from to)
-    set(pattern "")
-    foreach(f ${ARGN})
-      set(pattern ${f})
-    endforeach()
-
-    if(pattern STREQUAL "")
-      get_filename_component(dirpath ${to} DIRECTORY)
-      get_filename_component(filename ${to} NAME)
-      install(
-        FILES ${LIBDIR}/${from}
-        DESTINATION ${HARVEST_TARGET}/${dirpath}
-        RENAME ${filename}
-      )
-    else()
-      install(
-        DIRECTORY ${LIBDIR}/${from}/
-        DESTINATION ${HARVEST_TARGET}/${to}
-        USE_SOURCE_PERMISSIONS
-        FILES_MATCHING PATTERN ${pattern}
-        PATTERN "pkgconfig" EXCLUDE
-        PATTERN "cmake" EXCLUDE
-        PATTERN "__pycache__" EXCLUDE
-        PATTERN "tests" EXCLUDE
-      )
-    endif()
-  endfunction()
-
-  harvest(alembic/include alembic/include "*.h")
-  harvest(alembic/lib/libAlembic.a alembic/lib/libAlembic.a)
-  harvest(alembic/bin alembic/bin "*")
-  harvest(brotli/include brotli/include "*.h")
-  harvest(brotli/lib brotli/lib "*.a")
-  harvest(boost/include boost/include "*")
-  harvest(boost/lib boost/lib "*.a")
-  harvest(imath/include imath/include "*.h")
-  harvest(imath/lib imath/lib "*.a")
-  harvest(ffmpeg/include ffmpeg/include "*.h")
-  harvest(ffmpeg/lib ffmpeg/lib "*.a")
-  harvest(fftw3/include fftw3/include "*.h")
-  harvest(fftw3/lib fftw3/lib "*.a")
-  harvest(flac/lib sndfile/lib "libFLAC.a")
-  harvest(freetype/include freetype/include "*.h")
-  harvest(freetype/lib/libfreetype2ST.a freetype/lib/libfreetype.a)
-  harvest(epoxy/include epoxy/include "*.h")
-  harvest(epoxy/lib epoxy/lib "*.a")
-  harvest(gmp/include gmp/include "*.h")
-  harvest(gmp/lib gmp/lib "*.a")
-  harvest(jemalloc/include jemalloc/include "*.h")
-  harvest(jemalloc/lib jemalloc/lib "*.a")
-  harvest(jpeg/include jpeg/include "*.h")
-  harvest(jpeg/lib jpeg/lib "libjpeg.a")
-  harvest(lame/lib ffmpeg/lib "*.a")
-  if(NOT APPLE)
-    harvest(level-zero/include/level_zero level-zero/include/level_zero "*.h")
-    harvest(level-zero/lib level-zero/lib "*.so*")
-  endif()
-  harvest(llvm/bin llvm/bin "clang-format")
-  if(BUILD_CLANG_TOOLS)
-    harvest(llvm/bin llvm/bin "clang-tidy")
-    harvest(llvm/share/clang llvm/share "run-clang-tidy.py")
-  endif()
-  harvest(llvm/include llvm/include "*")
-  harvest(llvm/bin llvm/bin "llvm-config")
-  harvest(llvm/lib llvm/lib "libLLVM*.a")
-  harvest(llvm/lib llvm/lib "libclang*.a")
-  harvest(llvm/lib/clang llvm/lib/clang "*.h")
-  if(APPLE)
-    harvest(openmp/lib openmp/lib "*")
-    harvest(openmp/include openmp/include "*.h")
-  endif()
-  if(BLENDER_PLATFORM_ARM)
-    harvest(sse2neon sse2neon "*.h")
-  endif()
-  harvest(ogg/lib ffmpeg/lib "*.a")
-  harvest(openal/include openal/include "*.h")
-  if(UNIX AND NOT APPLE)
-    harvest(openal/lib openal/lib "*.a")
-
-    harvest(blosc/include blosc/include "*.h")
-    harvest(blosc/lib blosc/lib "*.a")
-
-    harvest(zlib/include zlib/include "*.h")
-    harvest(zlib/lib zlib/lib "*.a")
-
-    harvest(xml2/include xml2/include "*.h")
-    harvest(xml2/lib xml2/lib "*.a")
-
-    harvest(wayland-protocols/share/wayland-protocols wayland-protocols/share/wayland-protocols/ "*.xml")
-    harvest(wayland/bin wayland/bin "wayland-scanner")
-    harvest(wayland/include wayland/include "*.h")
-    harvest(wayland_libdecor/include wayland_libdecor/include "*.h")
-  else()
-    harvest(blosc/lib openvdb/lib "*.a")
-    harvest(xml2/lib opencollada/lib "*.a")
-  endif()
-  harvest(opencollada/include/opencollada opencollada/include "*.h")
-  harvest(opencollada/lib/opencollada opencollada/lib "*.a")
-  harvest(opencolorio/include opencolorio/include "*.h")
-  harvest(opencolorio/lib opencolorio/lib "*.a")
-  harvest(opencolorio/lib/static opencolorio/lib "*.a")
-  harvest(openexr/include openexr/include "*.h")
-  harvest(openexr/lib openexr/lib "*.a")
-  harvest(openimageio/bin openimageio/bin "idiff")
-  harvest(openimageio/bin openimageio/bin "maketx")
-  harvest(openimageio/bin openimageio/bin "oiiotool")
-  harvest(openimageio/include openimageio/include "*")
-  harvest(openimageio/lib openimageio/lib "*.a")
-  harvest(openimagedenoise/include openimagedenoise/include "*")
-  harvest(openimagedenoise/lib openimagedenoise/lib "*.a")
-  harvest(embree/include embree/include "*.h")
-  harvest(embree/lib embree/lib "*.a")
-  harvest(openpgl/include openpgl/include "*.h")
-  harvest(openpgl/lib openpgl/lib "*.a")
-  harvest(openpgl/lib/cmake/openpgl-${OPENPGL_SHORT_VERSION} openpgl/lib/cmake/openpgl "*.cmake")
-  harvest(openjpeg/include/openjpeg-${OPENJPEG_SHORT_VERSION} openjpeg/include "*.h")
-  harvest(openjpeg/lib openjpeg/lib "*.a")
-  harvest(opensubdiv/include opensubdiv/include "*.h")
-  harvest(opensubdiv/lib opensubdiv/lib "*.a")
-  harvest(openvdb/include/openvdb openvdb/include/openvdb "*.h")
-  harvest(openvdb/include/nanovdb openvdb/include/nanovdb "*.h")
-  harvest(openvdb/lib openvdb/lib "*.a")
-  harvest(xr_openxr_sdk/include/openxr xr_openxr_sdk/include/openxr "*.h")
-  harvest(xr_openxr_sdk/lib xr_openxr_sdk/lib "*.a")
-  harvest(osl/bin osl/bin "oslc")
-  harvest(osl/include osl/include "*.h")
-  harvest(osl/lib osl/lib "*.a")
-  harvest(osl/share/OSL/shaders osl/share/OSL/shaders "*.h")
-  harvest(png/include png/include "*.h")
-  harvest(png/lib png/lib "*.a")
-  harvest(pugixml/include pugixml/include "*.hpp")
-  harvest(pugixml/lib pugixml/lib "*.a")
-  harvest(python/bin python/bin "python${PYTHON_SHORT_VERSION}")
-  harvest(python/include python/include "*h")
-  harvest(python/lib python/lib "*")
-  harvest(sdl/include/SDL2 sdl/include "*.h")
-  harvest(sdl/lib sdl/lib "libSDL2.a")
-  harvest(sndfile/include sndfile/include "*.h")
-  harvest(sndfile/lib sndfile/lib "*.a")
-  harvest(spnav/include spnav/include "*.h")
-  harvest(spnav/lib spnav/lib "*.a")
-  harvest(tbb/include tbb/include "*.h")
-  harvest(tbb/lib/libtbb_static.a tbb/lib/libtbb.a)
-  harvest(theora/lib ffmpeg/lib "*.a")
-  harvest(tiff/include tiff/include "*.h")
-  harvest(tiff/lib tiff/lib "*.a")
-  harvest(vorbis/lib ffmpeg/lib "*.a")
-  harvest(opus/lib ffmpeg/lib "*.a")
-  harvest(vpx/lib ffmpeg/lib "*.a")
-  harvest(x264/lib ffmpeg/lib "*.a")
-  harvest(xvidcore/lib ffmpeg/lib "*.a")
-  harvest(aom/lib ffmpeg/lib "*.a")
-  harvest(webp/lib webp/lib "*.a")
-  harvest(webp/include webp/include "*.h")
-  harvest(usd/include usd/include "*.h")
-  harvest(usd/lib/usd usd/lib/usd "*")
-  harvest(usd/plugin usd/plugin "*")
-  harvest(potrace/include potrace/include "*.h")
-  harvest(potrace/lib potrace/lib "*.a")
-  harvest(haru/include haru/include "*.h")
-  harvest(haru/lib haru/lib "*.a")
-  harvest(zstd/include zstd/include "*.h")
-  harvest(zstd/lib zstd/lib "*.a")
-
-  if(UNIX AND NOT APPLE)
-    harvest(libglu/lib mesa/lib "*.so*")
-    harvest(mesa/lib64 mesa/lib "*.so*")
-
-    harvest(dpcpp dpcpp "*")
-    harvest(igc dpcpp/lib/igc "*")
-    harvest(ocloc dpcpp/lib/ocloc "*")
-  endif()
+	harvest(blosc/lib openvdb/lib "*.a")
+	harvest(xml2/lib opencollada/lib "*.a")
+endif()
+harvest(opencollada/include/opencollada opencollada/include "*.h")
+harvest(opencollada/lib/opencollada opencollada/lib "*.a")
+harvest(opencolorio/include opencolorio/include "*.h")
+harvest(opencolorio/lib opencolorio/lib "*.a")
+harvest(opencolorio/lib/static opencolorio/lib "*.a")
+harvest(openexr/include openexr/include "*.h")
+harvest(openexr/lib openexr/lib "*.a")
+harvest(openimageio/bin openimageio/bin "idiff")
+harvest(openimageio/bin openimageio/bin "maketx")
+harvest(openimageio/bin openimageio/bin "oiiotool")
+harvest(openimageio/include openimageio/include "*")
+harvest(openimageio/lib openimageio/lib "*.a")
+harvest(openjpeg/include/openjpeg-2.3 openjpeg/include "*.h")
+harvest(openjpeg/lib openjpeg/lib "*.a")
+harvest(opensubdiv/include opensubdiv/include "*.h")
+harvest(opensubdiv/lib opensubdiv/lib "*.a")
+harvest(openvdb/include/openvdb openvdb/include/openvdb "*.h")
+harvest(openvdb/lib openvdb/lib "*.a")
+harvest(osl/bin osl/bin "oslc")
+harvest(osl/include osl/include "*.h")
+harvest(osl/lib osl/lib "*.a")
+harvest(osl/shaders osl/shaders "*.h")
+harvest(png/include png/include "*.h")
+harvest(png/lib png/lib "*.a")
+harvest(python/bin python/bin "python${PYTHON_SHORT_VERSION}m")
+harvest(python/include python/include "*h")
+harvest(python/lib python/lib "*")
+harvest(sdl/include/SDL2 sdl/include "*.h")
+harvest(sdl/lib sdl/lib "libSDL2.a")
+harvest(sndfile/include sndfile/include "*.h")
+harvest(sndfile/lib sndfile/lib "*.a")
+harvest(spnav/include spnav/include "*.h")
+harvest(spnav/lib spnav/lib "*.a")
+harvest(tbb/include tbb/include "*.h")
+harvest(tbb/lib/libtbb_static.a tbb/lib/libtbb.a)
+harvest(theora/lib ffmpeg/lib "*.a")
+harvest(tiff/include tiff/include "*.h")
+harvest(tiff/lib tiff/lib "*.a")
+harvest(vorbis/lib ffmpeg/lib "*.a")
+harvest(vpx/lib ffmpeg/lib "*.a")
+harvest(webp/lib ffmpeg/lib "*.a")
+harvest(x264/lib ffmpeg/lib "*.a")
+harvest(xvidcore/lib ffmpeg/lib "*.a")

 endif()
--- a/build_files/build_environment/cmake/hdf5.cmake
+++ b/build_files/build_environment/cmake/hdf5.cmake
@@ -0,0 +1,42 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(HDF5_EXTRA_ARGS
+	-DHDF5_ENABLE_THREADSAFE=Off
+	-DHDF5_BUILD_CPP_LIB=Off
+	-DBUILD_TESTING=Off
+	-DHDF5_BUILD_TOOLS=Off
+	-DHDF5_BUILD_EXAMPLES=Off
+	-DHDF5_BUILD_HL_LIB=On
+	-DBUILD_STATIC_CRT_LIBS=On
+	-DBUILD_SHARED_LIBS=On
+)
+
+if(WIN32)
+	set(HDF5_PATCH ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/hdf5/src/external_hdf5 < ${PATCH_DIR}/hdf5.diff)
+endif()
+
+ExternalProject_Add(external_hdf5
+	URL ${HDF5_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${HDF5_HASH}
+	PREFIX ${BUILD_DIR}/hdf5
+	PATCH_COMMAND ${HDF5_PATCH}
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/hdf5 ${HDF5_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/hdf5
+)
--- a/build_files/build_environment/cmake/hidapi.cmake
+++ b/build_files/build_environment/cmake/hidapi.cmake
@@ -0,0 +1,29 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(HIDAPI_EXTRA_ARGS)
+
+ExternalProject_Add(external_hidapi
+	URL ${HIDAPI_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${HIDAPI_HASH}
+	PREFIX ${BUILD_DIR}/hidapi
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_hidapi.txt	${BUILD_DIR}/hidapi/src/external_hidapi/cmakelists.txt && ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/hidapi/src/external_hidapi < ${PATCH_DIR}/hidapi.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/hidapi -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${HIDAPI_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/hidapi
+)
--- a/build_files/build_environment/cmake/iconv.cmake
+++ b/build_files/build_environment/cmake/iconv.cmake
@@ -1,25 +1,41 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(ICONV_EXTRA_ARGS)

 ExternalProject_Add(external_iconv
-  URL file://${PACKAGE_DIR}/${ICONV_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ICONV_HASH_TYPE}=${ICONV_HASH}
-  PREFIX ${BUILD_DIR}/iconv
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/iconv
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make install
-  INSTALL_DIR ${LIBDIR}/iconv
+	URL ${ICONV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${ICONV_HASH}
+	PREFIX ${BUILD_DIR}/iconv
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/iconv
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make install
+	INSTALL_DIR ${LIBDIR}/iconv
 )

 if(MSVC)
-  set_target_properties(external_iconv PROPERTIES FOLDER Mingw)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_iconv after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/lib/libiconv.a ${HARVEST_TARGET}/iconv/lib/iconv.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/include/iconv.h ${HARVEST_TARGET}/iconv/include/iconv.h
-      DEPENDEES install
-    )
-  endif()
+	set_target_properties(external_iconv PROPERTIES FOLDER Mingw)
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_iconv after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/lib/libiconv.a ${HARVEST_TARGET}/iconv/lib/iconv.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/include/iconv.h ${HARVEST_TARGET}/iconv/include/iconv.h
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/igc.cmake
+++ b/build_files/build_environment/cmake/igc.cmake
@@ -1,126 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-unpack_only(igc_vcintrinsics)
-unpack_only(igc_spirv_headers)
-unpack_only(igc_spirv_tools)
-
-#
-# igc_opencl_clang contains patches that need to be applied
-# to external_igc_llvm and igc_spirv_translator, we unpack
-# igc_opencl_clang first, then have the patch stages of
-# external_igc_llvm and igc_spirv_translator apply them.
-#
-
-ExternalProject_Add(external_igc_opencl_clang
-  URL file://${PACKAGE_DIR}/${IGC_OPENCL_CLANG_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IGC_OPENCL_CLANG_HASH_TYPE}=${IGC_OPENCL_CLANG_HASH}
-  PREFIX ${BUILD_DIR}/igc_opencl_clang
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/igc_opencl_clang/src/external_igc_opencl_clang/ < ${PATCH_DIR}/igc_opencl_clang.diff
-)
-
-set(IGC_OPENCL_CLANG_PATCH_DIR ${BUILD_DIR}/igc_opencl_clang/src/external_igc_opencl_clang/patches)
-set(IGC_LLVM_SOURCE_DIR ${BUILD_DIR}/igc_llvm/src/external_igc_llvm)
-set(IGC_SPIRV_TRANSLATOR_SOURCE_DIR ${BUILD_DIR}/igc_spirv_translator/src/external_igc_spirv_translator)
-
-ExternalProject_Add(external_igc_llvm
-  URL file://${PACKAGE_DIR}/${IGC_LLVM_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IGC_LLVM_HASH_TYPE}=${IGC_LLVM_HASH}
-  PREFIX ${BUILD_DIR}/igc_llvm
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/clang/0001-OpenCL-3.0-support.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/clang/0002-Remove-__IMAGE_SUPPORT__-macro-for-SPIR.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/clang/0003-Avoid-calling-ParseCommandLineOptions-in-BackendUtil.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/clang/0004-OpenCL-support-cl_ext_float_atomics.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/clang/0005-OpenCL-Add-cl_khr_integer_dot_product.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/llvm/0001-Memory-leak-fix-for-Managed-Static-Mutex.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_LLVM_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/llvm/0002-Remove-repo-name-in-LLVM-IR.patch
-)
-add_dependencies(
-  external_igc_llvm
-  external_igc_opencl_clang
-)
-
-ExternalProject_Add(external_igc_spirv_translator
-  URL file://${PACKAGE_DIR}/${IGC_SPIRV_TRANSLATOR_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IGC_SPIRV_TRANSLATOR_HASH_TYPE}=${IGC_SPIRV_TRANSLATOR_HASH}
-  PREFIX ${BUILD_DIR}/igc_spirv_translator
-  CONFIGURE_COMMAND echo .
-  BUILD_COMMAND echo .
-  INSTALL_COMMAND echo .
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${IGC_SPIRV_TRANSLATOR_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/spirv/0001-update-SPIR-V-headers-for-SPV_INTEL_split_barrier.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_SPIRV_TRANSLATOR_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/spirv/0002-Add-support-for-split-barriers-extension-SPV_INTEL_s.patch &&
-    ${PATCH_CMD} -p 1 -d ${IGC_SPIRV_TRANSLATOR_SOURCE_DIR} < ${IGC_OPENCL_CLANG_PATCH_DIR}/spirv/0003-Support-cl_bf16_conversions.patch
-)
-add_dependencies(
-  external_igc_spirv_translator
-  external_igc_opencl_clang
-)
-
-if(WIN32)
-  set(IGC_GENERATOR "Ninja")
-  set(IGC_TARGET Windows64)
-else()
-  set(IGC_GENERATOR "Unix Makefiles")
-  set(IGC_TARGET Linux64)
-endif()
-
-set(IGC_EXTRA_ARGS
-  -DIGC_OPTION__ARCHITECTURE_TARGET=${IGC_TARGET}
-  -DIGC_OPTION__ARCHITECTURE_HOST=${IGC_TARGET}
-)
-
-if(UNIX AND NOT APPLE)
-  list(APPEND IGC_EXTRA_ARGS
-       -DFLEX_EXECUTABLE=${LIBDIR}/flex/bin/flex
-       -DFLEX_INCLUDE_DIR=${LIBDIR}/flex/include
-  )
-endif()
-
-ExternalProject_Add(external_igc
-  URL file://${PACKAGE_DIR}/${IGC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IGC_HASH_TYPE}=${IGC_HASH}
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/igc ${DEFAULT_CMAKE_FLAGS} ${IGC_EXTRA_ARGS}
-
-  # IGC is pretty set in its way where sub projects ought to live, for some it offers
-  # hooks to supply alternatives folders, other are just hardocded with no way to configure
-  # we symlink everything here, since it's less work than trying to convince the cmake
-  # scripts to accept alternative locations.
-  #
-  PATCH_COMMAND ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_llvm/src/external_igc_llvm/ ${BUILD_DIR}/igc/src/llvm-project &&
-    ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_opencl_clang/src/external_igc_opencl_clang/ ${BUILD_DIR}/igc/src/llvm-project/llvm/projects/opencl-clang &&
-    ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_spirv_translator/src/external_igc_spirv_translator/ ${BUILD_DIR}/igc/src/llvm-project/llvm/projects/llvm-spirv &&
-    ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_spirv_tools/src/external_igc_spirv_tools/ ${BUILD_DIR}/igc/src/SPIRV-Tools &&
-    ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_spirv_headers/src/external_igc_spirv_headers/ ${BUILD_DIR}/igc/src/SPIRV-Headers &&
-    ${CMAKE_COMMAND} -E create_symlink ${BUILD_DIR}/igc_vcintrinsics/src/external_igc_vcintrinsics/ ${BUILD_DIR}/igc/src/vc-intrinsics
-  PREFIX ${BUILD_DIR}/igc
-  INSTALL_DIR ${LIBDIR}/igc
-  INSTALL_COMMAND ${CMAKE_COMMAND} --install . --strip
-  CMAKE_GENERATOR ${IGC_GENERATOR}
-)
-
-add_dependencies(
-  external_igc
-  external_igc_vcintrinsics
-  external_igc_llvm
-  external_igc_opencl_clang
-  external_igc_vcintrinsics
-  external_igc_spirv_headers
-  external_igc_spirv_tools
-  external_igc_spirv_translator
-)
-
-if(UNIX AND NOT APPLE)
-  add_dependencies(
-    external_igc
-    external_flex
-  )
-endif()
--- a/build_files/build_environment/cmake/ilmbase.cmake
+++ b/build_files/build_environment/cmake/ilmbase.cmake
@@ -0,0 +1,58 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(ILMBASE_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+	set(ILMBASE_EXTRA_ARGS
+		-DBUILD_SHARED_LIBS=OFF
+		-DCMAKE_CXX_STANDARD_LIBRARIES=${ILMBASE_CMAKE_CXX_STANDARD_LIBRARIES}
+	)
+
+	ExternalProject_Add(external_ilmbase
+		URL ${ILMBASE_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${ILMBASE_HASH}
+		PREFIX ${BUILD_DIR}/ilmbase
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ilmbase ${DEFAULT_CMAKE_FLAGS} ${ILMBASE_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/openexr
+	)
+
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_ilmbase after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ilmbase ${HARVEST_TARGET}/openexr
+			DEPENDEES install
+		)
+	endif()
+
+else()
+	set(ILMBASE_EXTRA_ARGS
+		--enable-static
+		--disable-shared
+		--enable-cxxstd=11
+	)
+	ExternalProject_Add(external_ilmbase
+		URL ${ILMBASE_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${ILMBASE_HASH}
+		PREFIX ${BUILD_DIR}/ilmbase
+		CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ilmbase/src/external_ilmbase/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ilmbase ${ILMBASE_EXTRA_ARGS}
+		BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ilmbase/src/external_ilmbase/ && make -j${MAKE_THREADS}
+		INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ilmbase/src/external_ilmbase/ && make install
+		INSTALL_DIR ${LIBDIR}/openexr
+	)
+endif()
--- a/build_files/build_environment/cmake/imath.cmake
+++ b/build_files/build_environment/cmake/imath.cmake
@@ -1,24 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(IMATH_EXTRA_ARGS
-  -DBUILD_SHARED_LIBS=OFF
-  -DBUILD_TESTING=OFF
-  -DIMATH_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
-)
-
-ExternalProject_Add(external_imath
-  URL file://${PACKAGE_DIR}/${IMATH_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IMATH_HASH_TYPE}=${IMATH_HASH}
-  PREFIX ${BUILD_DIR}/imath
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/imath ${DEFAULT_CMAKE_FLAGS} ${IMATH_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/imath
-)
-
-if(WIN32)
-  ExternalProject_Add_Step(external_imath after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/imath/lib ${HARVEST_TARGET}/imath/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/imath/include ${HARVEST_TARGET}/imath/include
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/ispc.cmake
+++ b/build_files/build_environment/cmake/ispc.cmake
@@ -1,80 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(WIN32)
-  set(ISPC_EXTRA_ARGS_WIN
-    -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe
-    -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe
-    -DM4_EXECUTABLE=${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/m4.exe
-    -DARM_ENABLED=Off
-    -DPython3_FIND_REGISTRY=NEVER
-  )
-elseif(APPLE)
-  # Use bison and flex installed via Homebrew.
-  # The ones that come with Xcode toolset are too old.
-  if("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "arm64")
-    set(ISPC_EXTRA_ARGS_APPLE
-      -DBISON_EXECUTABLE=/opt/homebrew/opt/bison/bin/bison
-      -DFLEX_EXECUTABLE=/opt/homebrew/opt/flex/bin/flex
-      -DARM_ENABLED=On
-    )
-  else()
-    set(ISPC_EXTRA_ARGS_APPLE
-      -DBISON_EXECUTABLE=/usr/local/opt/bison/bin/bison
-      -DFLEX_EXECUTABLE=/usr/local/opt/flex/bin/flex
-      -DARM_ENABLED=Off
-    )
-  endif()
-elseif(UNIX)
-  set(ISPC_EXTRA_ARGS_UNIX
-    -DCMAKE_C_COMPILER=${LIBDIR}/llvm/bin/clang
-    -DCMAKE_CXX_COMPILER=${LIBDIR}/llvm/bin/clang++
-    -DARM_ENABLED=${BLENDER_PLATFORM_ARM}
-    -DFLEX_EXECUTABLE=${LIBDIR}/flex/bin/flex
-  )
-endif()
-
-set(ISPC_EXTRA_ARGS
-    -DISPC_NO_DUMPS=On
-    -DISPC_INCLUDE_EXAMPLES=Off
-    -DISPC_INCLUDE_TESTS=Off
-    -DLLVM_ROOT=${LIBDIR}/llvm/lib/cmake/llvm
-    -DLLVM_LIBRARY_DIR=${LIBDIR}/llvm/lib
-    -DCLANG_EXECUTABLE=${LIBDIR}/llvm/bin/clang
-    -DCLANGPP_EXECUTABLE=${LIBDIR}/llvm/bin/clang++
-    -DISPC_INCLUDE_TESTS=Off
-    -DCLANG_LIBRARY_DIR=${LIBDIR}/llvm/lib
-    -DCLANG_INCLUDE_DIRS=${LIBDIR}/llvm/include
-    -DPython3_ROOT_DIR=${LIBDIR}/python/
-    -DPython3_EXECUTABLE=${PYTHON_BINARY}
-    ${ISPC_EXTRA_ARGS_WIN}
-    ${ISPC_EXTRA_ARGS_APPLE}
-    ${ISPC_EXTRA_ARGS_UNIX}
-)
-
-ExternalProject_Add(external_ispc
-  URL file://${PACKAGE_DIR}/${ISPC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ISPC_HASH_TYPE}=${ISPC_HASH}
-  PREFIX ${BUILD_DIR}/ispc
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/ispc/src/external_ispc < ${PATCH_DIR}/ispc.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ispc -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ISPC_EXTRA_ARGS} ${BUILD_DIR}/ispc/src/external_ispc
-  INSTALL_DIR ${LIBDIR}/ispc
-)
-
-add_dependencies(
-  external_ispc
-  ll
-  external_python
-)
-
-if(WIN32)
-  add_dependencies(
-    external_ispc
-    external_flexbison
-  )
-elseif(UNIX AND NOT APPLE)
-  add_dependencies(
-    external_ispc
-    external_flex
-  )
-endif()
--- a/build_files/build_environment/cmake/jemalloc.cmake
+++ b/build_files/build_environment/cmake/jemalloc.cmake
@@ -1,12 +1,28 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_jemalloc
-  URL file://${PACKAGE_DIR}/${JEMALLOC_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${JEMALLOC_HASH_TYPE}=${JEMALLOC_HASH}
-  PREFIX ${BUILD_DIR}/jemalloc
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jemalloc --disable-shared --enable-static --with-pic
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make install
-  INSTALL_DIR ${LIBDIR}/jemalloc
+	URL ${JEMALLOC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${JEMALLOC_HASH}
+	PREFIX ${BUILD_DIR}/jemalloc
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jemalloc --disable-shared --enable-static --with-pic
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make install
+	INSTALL_DIR ${LIBDIR}/jemalloc
 )
--- a/build_files/build_environment/cmake/jpeg.cmake
+++ b/build_files/build_environment/cmake/jpeg.cmake
@@ -1,54 +1,65 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  # CMAKE for MS-Windows.
-  set(JPEG_EXTRA_ARGS
-    -DNASM=${NASM_PATH}
-    -DWITH_JPEG8=ON
-    -DCMAKE_DEBUG_POSTFIX=d
-    -DWITH_CRT_DLL=On
-    -DENABLE_SHARED=OFF
-    -DENABLE_STATIC=ON
-  )
+	# cmake for windows
+	set(JPEG_EXTRA_ARGS -DNASM=${NASM_PATH} -DWITH_JPEG8=ON  -DCMAKE_DEBUG_POSTFIX=d)

-  ExternalProject_Add(external_jpeg
-    URL file://${PACKAGE_DIR}/${JPEG_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${JPEG_HASH_TYPE}=${JPEG_HASH}
-    PREFIX ${BUILD_DIR}/jpeg
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpeg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
-    INSTALL_DIR ${LIBDIR}/jpeg
-  )
+	ExternalProject_Add(external_jpeg
+		URL ${JPEG_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${JPEG_HASH}
+		PREFIX ${BUILD_DIR}/jpg
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/jpg
+	)

-  if(BUILD_MODE STREQUAL Release)
-    set(JPEG_LIBRARY jpeg-static${LIBEXT})
-  else()
-    set(JPEG_LIBRARY jpeg-staticd${LIBEXT})
-  endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_jpeg after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpg/lib/jpegd${LIBEXT}  ${LIBDIR}/jpg/lib/jpeg${LIBEXT}
+			DEPENDEES install
+		)
+	endif()

-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_jpeg after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpeg/lib/${JPEG_LIBRARY}  ${LIBDIR}/jpeg/lib/jpeg${LIBEXT}
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		set(JPEG_LIBRARY jpeg-static${LIBEXT})
+	else()
+		set(JPEG_LIBRARY jpeg-staticd${LIBEXT})
+	endif()
+else(WIN32)
+	# autoconf for unix
+	if(APPLE)
+		set(JPEG_EXTRA_ARGS --host x86_64-apple-darwin --with-jpeg8)
+	else()
+		set(JPEG_EXTRA_ARGS --with-jpeg8)
+	endif()

-else()
-  # CMAKE for UNIX.
-  set(JPEG_EXTRA_ARGS
-    -DWITH_JPEG8=ON
-    -DENABLE_STATIC=ON
-    -DENABLE_SHARED=OFF
-    -DCMAKE_INSTALL_LIBDIR=${LIBDIR}/jpeg/lib)
+	ExternalProject_Add(external_jpeg
+		URL ${JPEG_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${JPEG_HASH}
+		CONFIGURE_COMMAND ${CONFIGURE_ENV} && autoreconf -fiv && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jpg NASM=yasm ${JPEG_EXTRA_ARGS}
+		BUILD_IN_SOURCE 1
+		BUILD_COMMAND ${CONFIGURE_ENV} && make install
+		PREFIX ${BUILD_DIR}/jpg
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/jpg
+	)

-  ExternalProject_Add(external_jpeg
-    URL file://${PACKAGE_DIR}/${JPEG_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${JPEG_HASH_TYPE}=${JPEG_HASH}
-    PREFIX ${BUILD_DIR}/jpeg
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpeg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
-    INSTALL_DIR ${LIBDIR}/jpeg
-  )
-
-  set(JPEG_LIBRARY libjpeg${LIBEXT})
-endif()
+	set(JPEG_LIBRARY libjpeg${LIBEXT})
+endif(WIN32)
--- a/build_files/build_environment/cmake/lame.cmake
+++ b/build_files/build_environment/cmake/lame.cmake
@@ -1,31 +1,47 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LAME_EXTRA_ARGS)
 if(MSVC)
-  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
-  set(LAME_EXTRA_ARGS CFLAGS=-msse)
-  endif()
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+	set(LAME_EXTRA_ARGS CFLAGS=-msse)
+	endif()
 endif()

 ExternalProject_Add(external_lame
-  URL file://${PACKAGE_DIR}/${LAME_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LAME_HASH_TYPE}=${LAME_HASH}
-  PREFIX ${BUILD_DIR}/lame
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lame --disable-shared --enable-static ${LAME_EXTRA_ARGS}
-    --enable-export=full
-    --with-fileio=sndfile
-    --without-vorbis
-    --with-pic
-    --disable-mp3x
-    --disable-mp3rtp
-    --disable-gtktest
-    --disable-frontend
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make install
-  INSTALL_DIR ${LIBDIR}/lame
+	URL ${LAME_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LAME_HASH}
+	PREFIX ${BUILD_DIR}/lame
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lame --disable-shared --enable-static ${LAME_EXTRA_ARGS}
+		--enable-export=full
+		--with-fileio=sndfile
+		--without-vorbis
+		--with-pic
+		--disable-mp3x
+		--disable-mp3rtp
+		--disable-gtktest
+		--disable-frontend
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make install
+	INSTALL_DIR ${LIBDIR}/lame
 )

 if(MSVC)
-  set_target_properties(external_lame PROPERTIES FOLDER Mingw)
+	set_target_properties(external_lame PROPERTIES FOLDER Mingw)
 endif()
--- a/build_files/build_environment/cmake/lcms.cmake
+++ b/build_files/build_environment/cmake/lcms.cmake
@@ -0,0 +1,31 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(LCMS_EXTRA_ARGS
+)
+
+ExternalProject_Add(external_lcms
+	URL ${LCMS_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LCMS_HASH}
+	PREFIX ${BUILD_DIR}/lcms
+	#patch taken from ocio
+	PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_lcms.txt ${BUILD_DIR}/lcms/src/external_lcms/CMakeLists.txt
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/lcms ${DEFAULT_CMAKE_FLAGS} ${LCMS_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/lcms
+)
--- a/build_files/build_environment/cmake/level-zero.cmake
+++ b/build_files/build_environment/cmake/level-zero.cmake
@@ -1,21 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(LEVEL_ZERO_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_level-zero
-  URL file://${PACKAGE_DIR}/${LEVEL_ZERO_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LEVEL_ZERO_HASH_TYPE}=${LEVEL_ZERO_HASH}
-  PREFIX ${BUILD_DIR}/level-zero
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/level-zero/src/external_level-zero < ${PATCH_DIR}/level-zero.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/level-zero ${DEFAULT_CMAKE_FLAGS} ${LEVEL_ZERO_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/level-zero
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_level-zero after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/level-zero ${HARVEST_TARGET}/level-zero
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/libglu.cmake
+++ b/build_files/build_environment/cmake/libglu.cmake
@@ -1,24 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(LIBGLU_CFLAGS "-static-libgcc")
-set(LIBGLU_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-set(LIBGLU_LDFLAGS "-pthread -static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-
-set(LIBGLU_EXTRA_FLAGS
-  CFLAGS=${LIBGLU_CFLAGS}
-  CXXFLAGS=${LIBGLU_CXXFLAGS}
-  LDFLAGS=${LIBGLU_LDFLAGS}
-)
-
-ExternalProject_Add(external_libglu
-  URL file://${PACKAGE_DIR}/${LIBGLU_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LIBGLU_HASH_TYPE}=${LIBGLU_HASH}
-  PREFIX ${BUILD_DIR}/libglu
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
-    cd ${BUILD_DIR}/libglu/src/external_libglu/ &&
-    ${CONFIGURE_COMMAND_NO_TARGET} --prefix=${LIBDIR}/libglu ${LIBGLU_EXTRA_FLAGS}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/libglu/src/external_libglu/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/libglu/src/external_libglu/ && make install
-  INSTALL_DIR ${LIBDIR}/libglu
-)
--- a/build_files/build_environment/cmake/llvm.cmake
+++ b/build_files/build_environment/cmake/llvm.cmake
@@ -1,85 +1,57 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(BLENDER_PLATFORM_ARM)
-  set(LLVM_TARGETS AArch64$<SEMICOLON>ARM)
-else()
-  set(LLVM_TARGETS X86)
-endif()
-
-if(APPLE)
-  set(LLVM_XML2_ARGS
-    -DLIBXML2_LIBRARY=${LIBDIR}/xml2/lib/libxml2.a
-    -DLIBXML2_INCLUDE_DIR=${LIBDIR}/xml2/include/libxml2
-  )
-  set(LLVM_BUILD_CLANG_TOOLS_EXTRA ^^clang-tools-extra)
-  set(BUILD_CLANG_TOOLS ON)
-endif()
-
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LLVM_EXTRA_ARGS
-  -DLLVM_USE_CRT_RELEASE=MD
-  -DLLVM_USE_CRT_DEBUG=MDd
-  -DLLVM_INCLUDE_TESTS=OFF
-  -DLLVM_TARGETS_TO_BUILD=${LLVM_TARGETS}
-  -DLLVM_INCLUDE_EXAMPLES=OFF
-  -DLLVM_ENABLE_TERMINFO=OFF
-  -DLLVM_BUILD_LLVM_C_DYLIB=OFF
-  -DLLVM_ENABLE_UNWIND_TABLES=OFF
-  -DLLVM_ENABLE_PROJECTS=clang${LLVM_BUILD_CLANG_TOOLS_EXTRA}
-  -DPython3_ROOT_DIR=${LIBDIR}/python/
-  -DPython3_EXECUTABLE=${PYTHON_BINARY}
-  ${LLVM_XML2_ARGS}
+	-DLLVM_USE_CRT_RELEASE=MT
+	-DLLVM_USE_CRT_DEBUG=MTd
+	-DLLVM_INCLUDE_TESTS=OFF
+	-DLLVM_TARGETS_TO_BUILD=X86
+	-DLLVM_INCLUDE_EXAMPLES=OFF
+	-DLLVM_ENABLE_TERMINFO=OFF
 )

 if(WIN32)
-  set(LLVM_GENERATOR "Ninja")
-  list(APPEND LLVM_EXTRA_ARGS -DPython3_FIND_REGISTRY=NEVER)
+	set(LLVM_GENERATOR "Ninja")
 else()
-  set(LLVM_GENERATOR "Unix Makefiles")
+	set(LLVM_GENERATOR "Unix Makefiles")
 endif()

 # short project name due to long filename issues on windows
 ExternalProject_Add(ll
-  URL file://${PACKAGE_DIR}/${LLVM_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LLVM_HASH_TYPE}=${LLVM_HASH}
-  CMAKE_GENERATOR ${LLVM_GENERATOR}
-  LIST_SEPARATOR ^^
-  PREFIX ${BUILD_DIR}/ll
-  SOURCE_SUBDIR llvm
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/ll/src/ll < ${PATCH_DIR}/llvm.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/llvm ${DEFAULT_CMAKE_FLAGS} ${LLVM_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/llvm
+	URL ${LLVM_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LLVM_HASH}
+	CMAKE_GENERATOR ${LLVM_GENERATOR}
+	PREFIX ${BUILD_DIR}/ll
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/llvm ${DEFAULT_CMAKE_FLAGS} ${LLVM_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/llvm
 )

 if(MSVC)
-  if(BUILD_MODE STREQUAL Release)
-    set(LLVM_HARVEST_COMMAND
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib ${HARVEST_TARGET}/llvm/lib &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/include ${HARVEST_TARGET}/llvm/include &&
-      ${CMAKE_COMMAND} -E copy ${LIBDIR}/llvm/bin/clang-format.exe ${HARVEST_TARGET}/llvm/bin/clang-format.exe
-    )
-  else()
-    set(LLVM_HARVEST_COMMAND
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib/ ${HARVEST_TARGET}/llvm/debug/lib/ &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/include/ ${HARVEST_TARGET}/llvm/debug/include/
-    )
-  endif()
-  ExternalProject_Add_Step(ll after_install
-    COMMAND ${LLVM_HARVEST_COMMAND}
-    DEPENDEES mkdir update patch download configure build install
-  )
+	if(BUILD_MODE STREQUAL Release)
+		set(LLVM_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/ ${HARVEST_TARGET}/llvm/ )
+	else()
+		set(LLVM_HARVEST_COMMAND
+			${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib/ ${HARVEST_TARGET}/llvm/debug/lib/
+		)
+	endif()
+	ExternalProject_Add_Step(ll after_install
+		COMMAND ${LLVM_HARVEST_COMMAND}
+		DEPENDEES mkdir update patch download configure build install
+	)
 endif()
-
-# We currently do not build libxml2 on Windows.
-if(APPLE)
-  add_dependencies(
-    ll
-    external_xml2
-  )
-endif()
-
-add_dependencies(
-  ll
-  external_python
-)
--- a/build_files/build_environment/cmake/lzma.cmake
+++ b/build_files/build_environment/cmake/lzma.cmake
@@ -1,16 +1,32 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LZMA_PATCH_CMD echo .)

 ExternalProject_Add(external_lzma
-  URL file://${PACKAGE_DIR}/${LZMA_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LZMA_HASH_TYPE}=${LZMA_HASH}
-  PREFIX ${BUILD_DIR}/lzma
-  PATCH_COMMAND ${LZMA_PATCH_CMD}
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lzma
-    --disable-shared
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && make install
-  INSTALL_DIR ${LIBDIR}/lzma
+	URL ${LZMA_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${LZMA_HASH}
+	PREFIX ${BUILD_DIR}/lzma
+	PATCH_COMMAND ${LZMA_PATCH_CMD}
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lzma
+		--disable-shared
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && make install
+	INSTALL_DIR ${LIBDIR}/lzma
 )
--- a/build_files/build_environment/cmake/macros.cmake
+++ b/build_files/build_environment/cmake/macros.cmake
@@ -1,18 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# shorthand to only unpack a certain dependency
-macro(unpack_only name)
-  string(TOUPPER ${name} UPPER_NAME)
-  set(TARGET_FILE ${${UPPER_NAME}_FILE})
-  set(TARGET_HASH_TYPE ${${UPPER_NAME}_HASH_TYPE})
-  set(TARGET_HASH ${${UPPER_NAME}_HASH})
-  ExternalProject_Add(external_${name}
-    URL file://${PACKAGE_DIR}/${TARGET_FILE}
-    URL_HASH ${TARGET_HASH_TYPE}=${TARGET_HASH}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    PREFIX ${BUILD_DIR}/${name}
-    CONFIGURE_COMMAND echo .
-    BUILD_COMMAND echo .
-    INSTALL_COMMAND echo .
-  )
-endmacro()
--- a/build_files/build_environment/cmake/mesa.cmake
+++ b/build_files/build_environment/cmake/mesa.cmake
@@ -1,55 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(MESA_CFLAGS "-static-libgcc")
-set(MESA_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-set(MESA_LDFLAGS "-L${LIBDIR}/zlib/lib -pthread -static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a -l:libz_pic.a")
-
-# The 'native-file', used for overrides with the meson build system.
-# meson does not provide a way to do this using command line arguments.
-#
-# Note that we can't output to "${BUILD_DIR}/mesa/src/external_mesa" as
-# it doesn't exist when CMake first executes.
-file(WRITE ${BUILD_DIR}/mesa/tmp/native-file.ini "\
-[binaries]
-llvm-config = '${LIBDIR}/llvm/bin/llvm-config'"
-)
-
-set(MESA_EXTRA_FLAGS
-  -Dbuildtype=release
-  -Dc_args=${MESA_CFLAGS}
-  -Dcpp_args=${MESA_CXXFLAGS}
-  -Dc_link_args=${MESA_LDFLAGS}
-  -Dcpp_link_args=${MESA_LDFLAGS}
-  -Dglx=gallium-xlib
-  -Dgallium-drivers=swrast
-  -Ddri-drivers=
-  -Dvulkan-drivers=
-  -Dgbm=disabled
-  -Degl=disabled
-  -Dgles1=disabled
-  -Dgles2=disabled
-  -Dshared-llvm=disabled
-  # Without this, the build fails when: `wayland-scanner` is not found.
-  # At some point we will likely want to support Wayland.
-  # Disable for now since it's not officially supported.
-  -Dplatforms=x11
-  --native-file ${BUILD_DIR}/mesa/tmp/native-file.ini
-)
-
-ExternalProject_Add(external_mesa
-  URL file://${PACKAGE_DIR}/${MESA_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${MESA_HASH_TYPE}=${MESA_HASH}
-  PREFIX ${BUILD_DIR}/mesa
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
-    cd ${BUILD_DIR}/mesa/src/external_mesa/ &&
-    meson ${BUILD_DIR}/mesa/src/external_mesa-build --prefix=${LIBDIR}/mesa ${MESA_EXTRA_FLAGS}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa-build && ninja -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa-build && ninja install
-  INSTALL_DIR ${LIBDIR}/mesa
-)
-
-add_dependencies(
-  external_mesa
-  ll
-)
--- a/build_files/build_environment/cmake/nasm.cmake
+++ b/build_files/build_environment/cmake/nasm.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-ExternalProject_Add(external_nasm
-  URL file://${PACKAGE_DIR}/${NASM_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${NASM_HASH_TYPE}=${NASM_HASH}
-  PREFIX ${BUILD_DIR}/nasm
-  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/nasm/src/external_nasm < ${PATCH_DIR}/nasm.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && ./autogen.sh && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/nasm
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make -j${MAKE_THREADS} && make manpages
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make install
-  INSTALL_DIR ${LIBDIR}/nasm
-)
-
-if(UNIX)
-  # `touch nasm.1 ndisasm.1` helps to create the manual pages files, even when
-  # local `asciidoc` and `xmlto` packages are not installed.
-  ExternalProject_Add_Step(external_nasm after_configure
-    COMMAND  ${CMAKE_COMMAND} -E touch ${BUILD_DIR}/nasm/src/external_nasm/nasm.1 ${BUILD_DIR}/nasm/src/external_nasm/ndisasm.1
-    DEPENDEES configure
-  )
-endif()
--- a/build_files/build_environment/cmake/numpy.cmake
+++ b/build_files/build_environment/cmake/numpy.cmake
@@ -1,34 +1,66 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(MSVC)
-  message("BIN >${PYTHON_BINARY}<")
-  if(BUILD_MODE STREQUAL Debug)
-    set(NUMPY_DIR_POSTFIX -pydebug)
-    set(NUMPY_ARCHIVE_POSTFIX d)
-    set(NUMPY_BUILD_OPTION --debug)
-  else()
-    set(NUMPY_DIR_POSTFIX)
-    set(NUMPY_ARCHIVE_POSTFIX)
-    set(NUMPY_BUILD_OPTION)
-  endif()
+	if(BUILD_MODE STREQUAL Debug)
+		set(NUMPY_DIR_POSTFIX -pydebug)
+		set(NUMPY_ARCHIVE_POSTFIX d)
+		set(NUMPY_BUILD_OPTION --debug)
+	else()
+		set(NUMPY_DIR_POSTFIX)
+		set(NUMPY_ARCHIVE_POSTFIX)
+		set(NUMPY_BUILD_OPTION)
+	endif()
 endif()

 set(NUMPY_POSTFIX)

+if(WIN32)
+	set(NUMPY_INSTALL
+		${CMAKE_COMMAND} -E copy_directory "${BUILD_DIR}/python/src/external_python/run/lib/site-packages/numpy/core/include/numpy" "${LIBDIR}/python/include/python${PYTHON_SHORT_VERSION}/numpy" &&
+		${CMAKE_COMMAND} -E chdir "${BUILD_DIR}/numpy/src/external_numpy/build/lib.${PYTHON_ARCH2}-${PYTHON_SHORT_VERSION}${NUMPY_DIR_POSTFIX}"
+		${CMAKE_COMMAND} -E tar "cfvz" "${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}${NUMPY_ARCHIVE_POSTFIX}.tar.gz" "."
+	)
+else()
+	set(NUMPY_INSTALL echo .)
+	set(NUMPY_PATCH echo .)
+endif()
+
 ExternalProject_Add(external_numpy
-  URL file://${PACKAGE_DIR}/${NUMPY_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${NUMPY_HASH_TYPE}=${NUMPY_HASH}
-  PREFIX ${BUILD_DIR}/numpy
-  PATCH_COMMAND ${NUMPY_PATCH}
-  CONFIGURE_COMMAND ""
-  LOG_BUILD 1
-  BUILD_COMMAND ${PYTHON_BINARY} ${BUILD_DIR}/numpy/src/external_numpy/setup.py build ${NUMPY_BUILD_OPTION} install --old-and-unmanageable
-  INSTALL_COMMAND ""
+	URL ${NUMPY_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${NUMPY_HASH}
+	PREFIX ${BUILD_DIR}/numpy
+	PATCH_COMMAND ${NUMPY_PATCH}
+	CONFIGURE_COMMAND ""
+	LOG_BUILD 1
+	BUILD_COMMAND ${PYTHON_BINARY} ${BUILD_DIR}/numpy/src/external_numpy/setup.py build ${NUMPY_BUILD_OPTION} install --old-and-unmanageable
+	INSTALL_COMMAND ${NUMPY_INSTALL}
 )

+if(WIN32)
+	ExternalProject_Add_Step(external_numpy after_install
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}${NUMPY_ARCHIVE_POSTFIX}.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}${NUMPY_ARCHIVE_POSTFIX}.tar.gz
+			DEPENDEES install
+		)
+endif()
+
 add_dependencies(
-  external_numpy
-  external_python
-  external_python_site_packages
+	external_numpy
+	Make_Python_Environment
 )
--- a/build_files/build_environment/cmake/ocloc.cmake
+++ b/build_files/build_environment/cmake/ocloc.cmake
@@ -1,24 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(OCLOC_EXTRA_ARGS
-  -DNEO_SKIP_UNIT_TESTS=1
-  -DNEO_BUILD_WITH_OCL=0
-  -DBUILD_WITH_L0=0
-  -DIGC_DIR=${LIBDIR}/igc
-  -DGMM_DIR=${LIBDIR}/gmmlib
-)
-
-ExternalProject_Add(external_ocloc
-  URL file://${PACKAGE_DIR}/${OCLOC_FILE}
-  URL_HASH ${OCLOC_HASH_TYPE}=${OCLOC_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/ocloc
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ocloc ${DEFAULT_CMAKE_FLAGS} ${OCLOC_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/ocloc
-)
-
-add_dependencies(
-  external_ocloc
-  external_igc
-  external_gmmlib
-)
--- a/build_files/build_environment/cmake/ogg.cmake
+++ b/build_files/build_environment/cmake/ogg.cmake
@@ -1,17 +1,32 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ogg
-  URL file://${PACKAGE_DIR}/${OGG_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OGG_HASH_TYPE}=${OGG_HASH}
-  PREFIX ${BUILD_DIR}/ogg
-  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/ogg/src/external_ogg < ${PATCH_DIR}/ogg.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ogg --disable-shared --enable-static
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make install
-  INSTALL_DIR ${LIBDIR}/ogg
+	URL ${OGG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${OGG_HASH}
+	PREFIX ${BUILD_DIR}/ogg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ogg --disable-shared --enable-static
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make install
+	INSTALL_DIR ${LIBDIR}/ogg
 )

 if(MSVC)
-  set_target_properties(external_ogg PROPERTIES FOLDER Mingw)
+	set_target_properties(external_ogg PROPERTIES FOLDER Mingw)
 endif()
--- a/build_files/build_environment/cmake/openal.cmake
+++ b/build_files/build_environment/cmake/openal.cmake
@@ -1,50 +1,54 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Release)
-  set(OPENAL_EXTRA_ARGS
-    -DALSOFT_UTILS=OFF
-    -DALSOFT_NO_CONFIG_UTIL=ON
-    -DALSOFT_EXAMPLES=OFF
-    -DALSOFT_TESTS=OFF
-    -DALSOFT_CONFIG=OFF
-    -DALSOFT_HRTF_DEFS=OFF
-    -DALSOFT_INSTALL=ON
-    -DALSOFT_BACKEND_SNDIO=OFF
-  )
+	set(OPENAL_EXTRA_ARGS
+		-DALSOFT_UTILS=Off
+		-DALSOFT_NO_CONFIG_UTIL=On
+		-DALSOFT_EXAMPLES=Off
+		-DALSOFT_TESTS=Off
+		-DALSOFT_CONFIG=Off
+		-DALSOFT_HRTF_DEFS=Off
+		-DALSOFT_INSTALL=On
+		-DALSOFT_BACKEND_SNDIO=Off
+	)

-  if(UNIX)
-    set(OPENAL_EXTRA_ARGS
-      ${OPENAL_EXTRA_ARGS}
-      -DLIBTYPE=STATIC
-    )
-  endif()
+	if(UNIX)
+		set(OPENAL_EXTRA_ARGS ${OPENAL_EXTRA_ARGS} -DLIBTYPE=STATIC)
+	endif()

-  if(UNIX AND NOT APPLE)
-    # Ensure we have backends for playback.
-    set(OPENAL_EXTRA_ARGS
-      ${OPENAL_EXTRA_ARGS}
-      -DALSOFT_REQUIRE_ALSA=ON
-      -DALSOFT_REQUIRE_OSS=ON
-      -DALSOFT_REQUIRE_PULSEAUDIO=ON
-    )
-  endif()
+	ExternalProject_Add(external_openal
+		URL ${OPENAL_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${OPENAL_HASH}
+		PREFIX ${BUILD_DIR}/openal
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openal ${DEFAULT_CMAKE_FLAGS} ${OPENAL_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/openal
+		PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openal/src/external_openal < ${PATCH_DIR}/openal.diff
+	)

-  ExternalProject_Add(external_openal
-    URL file://${PACKAGE_DIR}/${OPENAL_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${OPENAL_HASH_TYPE}=${OPENAL_HASH}
-    PREFIX ${BUILD_DIR}/openal
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openal ${DEFAULT_CMAKE_FLAGS} ${OPENAL_EXTRA_ARGS}
-    INSTALL_DIR ${LIBDIR}/openal
-  )
-
-  if(WIN32)
-    ExternalProject_Add_Step(external_openal after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/lib/openal32.lib ${HARVEST_TARGET}/openal/lib/openal32.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/bin/openal32.dll ${HARVEST_TARGET}/openal/lib/openal32.dll
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openal/include/ ${HARVEST_TARGET}/openal/include/
-      DEPENDEES install
-    )
-  endif()
+	if(WIN32)
+		ExternalProject_Add_Step(external_openal after_install
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/lib/openal32.lib ${HARVEST_TARGET}/openal/lib/openal32.lib
+			COMMAND	${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/bin/openal32.dll ${HARVEST_TARGET}/openal/lib/openal32.dll
+			COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openal/include/ ${HARVEST_TARGET}/openal/include/
+			DEPENDEES install
+		)
+	endif()

 endif()
--- a/build_files/build_environment/cmake/opencollada.cmake
+++ b/build_files/build_environment/cmake/opencollada.cmake
@@ -1,64 +1,65 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(UNIX)
-  set(OPENCOLLADA_EXTRA_ARGS
-    -DLIBXML2_INCLUDE_DIR=${LIBDIR}/xml2/include/libxml2
-    -DLIBXML2_LIBRARIES=${LIBDIR}/xml2/lib/libxml2.a)
-
-  # WARNING: the patch contains mixed UNIX and DOS line endings
-  # as does the OPENCOLLADA package, if this can be corrected upstream that would be better.
-  # For now use `sed` to force UNIX line endings so the patch applies.
-  # Needed as neither ignoring white-space or applying as a binary resolve this problem.
-  set(PATCH_MAYBE_DOS2UNIX_CMD
-    sed -i "s/\\r//"
-    ${PATCH_DIR}/opencollada.diff
-    ${BUILD_DIR}/opencollada/src/external_opencollada/CMakeLists.txt
-    ${BUILD_DIR}/opencollada/src/external_opencollada/Externals/LibXML/CMakeLists.txt &&
-  )
-
-else()
-  set(OPENCOLLADA_EXTRA_ARGS
-    -DCMAKE_DEBUG_POSTFIX=_d
-    -DLIBXML2_INCLUDE_DIR=${LIBDIR}/xml2/include/libxml2
-  )
-  if(BUILD_MODE STREQUAL Release)
-    list(APPEND  OPENCOLLADA_EXTRA_ARGS -DLIBXML2_LIBRARIES=${LIBDIR}/xml2/lib/libxml2s.lib)
-  else()
-    list(APPEND  OPENCOLLADA_EXTRA_ARGS -DLIBXML2_LIBRARIES=${LIBDIR}/xml2/lib/libxml2sd.lib)
-  endif()
-  set(PATCH_MAYBE_DOS2UNIX_CMD)
+	set(OPENCOLLADA_EXTRA_ARGS
+		-DLIBXML2_INCLUDE_DIR=${LIBDIR}/xml2/include/libxml2
+		-DLIBXML2_LIBRARIES=${LIBDIR}/xml2/lib/libxml2.a)
 endif()

 ExternalProject_Add(external_opencollada
-  URL file://${PACKAGE_DIR}/${OPENCOLLADA_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENCOLLADA_HASH_TYPE}=${OPENCOLLADA_HASH}
-  PREFIX ${BUILD_DIR}/opencollada
-  PATCH_COMMAND
-    ${PATCH_MAYBE_DOS2UNIX_CMD}
-    ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencollada/src/external_opencollada < ${PATCH_DIR}/opencollada.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencollada ${DEFAULT_CMAKE_FLAGS} ${OPENCOLLADA_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/opencollada
+	URL ${OPENCOLLADA_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENCOLLADA_HASH}
+	PREFIX ${BUILD_DIR}/opencollada
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencollada/src/external_opencollada < ${PATCH_DIR}/opencollada.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencollada ${DEFAULT_CMAKE_FLAGS} ${OPENCOLLADA_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opencollada
 )

-unset(PATCH_MAYBE_DOS2UNIX_CMD)
-
-add_dependencies(
-  external_opencollada
-  external_xml2
-)
+if(UNIX)
+	add_dependencies(
+		external_opencollada
+		external_xml2
+	)
+endif()

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_opencollada after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencollada/ ${HARVEST_TARGET}/opencollada/
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_opencollada after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencollada/lib ${HARVEST_TARGET}/opencollada/lib
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_opencollada after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencollada/ ${HARVEST_TARGET}/opencollada/
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_opencollada after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/buffer.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/buffer_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/ftoa.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/ftoa_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/GeneratedSaxParser.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/GeneratedSaxParser_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/MathMLSolver.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/MathMLSolver_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADABaseUtils.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADABaseUtils_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADAFramework.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADAFramework_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADASaxFrameworkLoader.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADASaxFrameworkLoader_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADAStreamWriter.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADAStreamWriter_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/pcre.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/pcre_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/UTF.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/UTF_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/xml.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/xml_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/opencolorio.cmake
+++ b/build_files/build_environment/cmake/opencolorio.cmake
@@ -1,87 +1,112 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(OPENCOLORIO_EXTRA_ARGS
-  -DOCIO_BUILD_APPS=OFF
-  -DOCIO_BUILD_PYTHON=OFF
-  -DOCIO_BUILD_NUKE=OFF
-  -DOCIO_BUILD_JAVA=OFF
-  -DBUILD_SHARED_LIBS=OFF
-  -DOCIO_BUILD_DOCS=OFF
-  -DOCIO_BUILD_TESTS=OFF
-  -DOCIO_BUILD_GPU_TESTS=OFF
-  -DOCIO_USE_SSE=ON
-
-  -DOCIO_INSTALL_EXT_PACKAGES=NONE
-
-  -Dexpat_ROOT=${LIBDIR}/expat
-  -Dyaml-cpp_ROOT=${LIBDIR}/yamlcpp
-  -Dpystring_ROOT=${LIBDIR}/pystring
-  -DImath_ROOT=${LIBDIR}/imath
+	-DOCIO_BUILD_APPS=OFF
+	-DOCIO_BUILD_PYGLUE=OFF
+	-DOCIO_BUILD_NUKE=OFF
+	-DOCIO_USE_BOOST_PTR=OFF
+	-DOCIO_BUILD_STATIC=ON
+	-DOCIO_BUILD_SHARED=OFF
+	-DOCIO_BUILD_TRUELIGHT=OFF
+	-DOCIO_BUILD_DOCS=OFF
+	-DOCIO_BUILD_PYGLUE=OFF
+	-DOCIO_BUILD_JNIGLUE=OFF
+	-DOCIO_STATIC_JNIGLUE=OFF
 )

-if(BLENDER_PLATFORM_ARM)
-  set(OPENCOLORIO_EXTRA_ARGS
-    ${OPENCOLORIO_EXTRA_ARGS}
-    -DOCIO_USE_SSE=OFF
-  )
-endif()
-
 if(WIN32)
-  set(OPENCOLORIO_EXTRA_ARGS
-    ${OPENCOLORIO_EXTRA_ARGS}
-    -Dexpat_LIBRARY=${LIBDIR}/expat/lib/libexpatMD
-    -Dyaml-cpp_LIBRARY=${LIBDIR}/expat/lib/libyaml-cppmd.lib
-    -DImath_LIBRARY=${LIBDIR}/imath/lib/imath${OPENEXR_VERSION_POSTFIX}
-  )
+	set(OCIO_PATCH opencolorio_win.diff)
+	set(OPENCOLORIO_EXTRA_ARGS
+		${OPENCOLORIO_EXTRA_ARGS}
+		-DOCIO_BUILD_TESTS=OFF
+		-DOCIO_USE_SSE=ON
+		-DOCIO_INLINES_HIDDEN=OFF
+		-DOCIO_PYGLUE_LINK=OFF
+		-DOCIO_PYGLUE_RESPECT_ABI=OFF
+		-DOCIO_PYGLUE_SONAME=OFF
+		-DOCIO_PYGLUE_LIB_PREFIX=OFF
+		-DUSE_EXTERNAL_TINYXML=ON
+		-DTINYXML_INCLUDE_DIR=${LIBDIR}/tinyxml/include
+		-DTINYXML_LIBRARY=${LIBDIR}/tinyxml/lib/tinyxml${libext}
+		-DUSE_EXTERNAL_YAML=ON
+		-DYAML_CPP_FOUND=ON
+		-DYAML_CPP_VERSION=${YAMLCPP_VERSION}
+		-DUSE_EXTERNAL_LCMS=ON
+		-DINC_1=${LIBDIR}/tinyxml/include
+		-DINC_2=${LIBDIR}/yamlcpp/include
+		#lie because ocio cmake is demanding boost even though it is not needed
+		-DYAML_CPP_VERSION=0.5.0
+	)
 else()
-  set(OPENCOLORIO_EXTRA_ARGS
-    ${OPENCOLORIO_EXTRA_ARGS}
-  )
+	set(OCIO_PATCH opencolorio.diff)
+	set(OPENCOLORIO_EXTRA_ARGS
+		${OPENCOLORIO_EXTRA_ARGS}
+	)
 endif()

 ExternalProject_Add(external_opencolorio
-  URL file://${PACKAGE_DIR}/${OPENCOLORIO_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENCOLORIO_HASH_TYPE}=${OPENCOLORIO_HASH}
-  PREFIX ${BUILD_DIR}/opencolorio
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencolorio/src/external_opencolorio < ${PATCH_DIR}/opencolorio.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencolorio ${DEFAULT_CMAKE_FLAGS} ${OPENCOLORIO_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/opencolorio
+	URL ${OPENCOLORIO_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENCOLORIO_HASH}
+	PREFIX ${BUILD_DIR}/opencolorio
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencolorio/src/external_opencolorio < ${PATCH_DIR}/${OCIO_PATCH}
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencolorio ${DEFAULT_CMAKE_FLAGS} ${OPENCOLORIO_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opencolorio
 )

+if(NOT WIN32)
+	add_custom_command(
+		OUTPUT ${LIBDIR}/opencolorio/lib/libtinyxml.a
+		COMMAND cp ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/libtinyxml.a ${LIBDIR}/opencolorio/lib/libtinyxml.a
+		COMMAND cp ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/libyaml-cpp.a ${LIBDIR}/opencolorio/lib/libyaml-cpp.a
+	)
+	add_custom_target(external_opencolorio_extra ALL DEPENDS external_opencolorio ${LIBDIR}/opencolorio/lib/libtinyxml.a)
+endif()
+
 add_dependencies(
-  external_opencolorio
-  external_yamlcpp
-  external_expat
-  external_imath
-  external_pystring
+	external_opencolorio
+	external_boost
 )

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_opencolorio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/include ${HARVEST_TARGET}/opencolorio/include
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/lib ${HARVEST_TARGET}/opencolorio/lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatMD.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pystring/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring.lib
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_opencolorio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencolorio/lib/Opencolorio.lib ${HARVEST_TARGET}/opencolorio/lib/OpencolorIO_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmdd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatdMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatdMD.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pystring/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring_d.lib
-      DEPENDEES install
-    )
-  endif()
-else()
-    ExternalProject_Add_Step(external_opencolorio after_install
-      COMMAND cp ${LIBDIR}/yamlcpp/lib/libyaml-cpp.a ${LIBDIR}/opencolorio/lib/
-      COMMAND cp ${LIBDIR}/expat/lib/libexpat.a ${LIBDIR}/opencolorio/lib/
-      COMMAND cp ${LIBDIR}/pystring/lib/libpystring.a ${LIBDIR}/opencolorio/lib/
-      DEPENDEES install
-    )
+	add_dependencies(
+		external_opencolorio
+		external_tinyxml
+		external_yamlcpp
+
+	)
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_opencolorio after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/include ${HARVEST_TARGET}/opencolorio/include
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/lib/static ${HARVEST_TARGET}/opencolorio/lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmt.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tinyxml/lib/tinyxml.lib ${HARVEST_TARGET}/opencolorio/lib/tinyxml.lib
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_opencolorio after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencolorio/lib/static/Opencolorio.lib ${HARVEST_TARGET}/opencolorio/lib/OpencolorIO_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmtd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tinyxml/lib/tinyxml.lib ${HARVEST_TARGET}/opencolorio/lib/tinyxml_d.lib
+			DEPENDEES install
+		)
+	endif()
+
 endif()
--- a/build_files/build_environment/cmake/openexr.cmake
+++ b/build_files/build_environment/cmake/openexr.cmake
@@ -1,46 +1,78 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
-  set(OPENEXR_EXTRA_ARGS
-    -DCMAKE_CXX_STANDARD_LIBRARIES=${OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES}
-  )
+	set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+	set(OPENEXR_EXTRA_ARGS
+		-DCMAKE_CXX_STANDARD_LIBRARIES=${OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES}
+		-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+		-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+		-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase
+		-DOPENEXR_BUILD_ILMBASE=On
+		-DOPENEXR_BUILD_OPENEXR=On
+		-DOPENEXR_BUILD_PYTHON_LIBS=Off
+		-DOPENEXR_BUILD_STATIC=On
+		-DOPENEXR_BUILD_SHARED=Off
+		-DOPENEXR_BUILD_TESTS=Off
+		-DOPENEXR_BUILD_VIEWERS=Off
+		-DOPENEXR_BUILD_UTILS=Off
+		-DOPENEXR_NAMESPACE_VERSIONING=Off
+	)
+	ExternalProject_Add(external_openexr
+		URL ${OPENEXR_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${OPENEXR_HASH}
+		PREFIX ${BUILD_DIR}/openexr
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openexr ${DEFAULT_CMAKE_FLAGS} ${OPENEXR_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/openexr
+	)
+
+	ExternalProject_Add_Step(external_openexr after_install
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${HARVEST_TARGET}/openexr/lib
+		#libs have moved between versions, just duplicate it for now.
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${LIBDIR}/ilmbase/lib
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/include ${HARVEST_TARGET}/openexr/include
+		DEPENDEES install
+	)
+
 else()
-  set(OPENEXR_EXTRA_ARGS
-  )
-endif()
+	set(OPENEXR_PKG_CONFIG_PATH ${LIBDIR}/zlib/share/pkgconfig)
+	set(OPENEXR_EXTRA_ARGS
+	  --enable-static
+	  --disable-shared
+	  --enable-cxxstd=11
+	  --with-ilmbase-prefix=${LIBDIR}/ilmbase
+	  )

-set(OPENEXR_EXTRA_ARGS
-  ${OPENEXR_EXTRA_ARGS}
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
-  -DBUILD_TESTING=OFF
-  -DOPENEXR_BUILD_BOTH_STATIC_SHARED=OFF
-  -DBUILD_SHARED_LIBS=OFF
-  -DOPENEXR_INSTALL_TOOLS=OFF
-  -DOPENEXR_INSTALL_EXAMPLES=OFF
-  -DImath_DIR=${LIBDIR}/imath/lib/cmake/Imath
-  -DOPENEXR_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
-)
-
-ExternalProject_Add(external_openexr
-  URL file://${PACKAGE_DIR}/${OPENEXR_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENEXR_HASH_TYPE}=${OPENEXR_HASH}
-  PREFIX ${BUILD_DIR}/openexr
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openexr ${DEFAULT_CMAKE_FLAGS} ${OPENEXR_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/openexr
-)
-
-if(WIN32)
-  ExternalProject_Add_Step(external_openexr after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${HARVEST_TARGET}/openexr/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/include ${HARVEST_TARGET}/openexr/include
-    DEPENDEES install
-  )
+	ExternalProject_Add(external_openexr
+		URL ${OPENEXR_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${OPENEXR_HASH}
+		PREFIX ${BUILD_DIR}/openexr
+		CONFIGURE_COMMAND ${CONFIGURE_ENV} && export PKG_CONFIG_PATH=${OPENEXR_PKG_CONFIG_PATH} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/openexr ${OPENEXR_EXTRA_ARGS}
+		BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && make -j${MAKE_THREADS}
+		INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && make install
+		INSTALL_DIR ${LIBDIR}/openexr
+	)
 endif()

 add_dependencies(
-  external_openexr
-  external_zlib
+	external_openexr
+	external_zlib
+	external_ilmbase
 )
--- a/build_files/build_environment/cmake/openimagedenoise.cmake
+++ b/build_files/build_environment/cmake/openimagedenoise.cmake
@@ -1,63 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-
-set(OIDN_EXTRA_ARGS
-  -DOIDN_APPS=OFF
-  -DTBB_ROOT=${LIBDIR}/tbb
-  -DTBB_STATIC_LIB=${TBB_STATIC_LIBRARY}
-  -DOIDN_STATIC_LIB=ON
-  -DOIDN_STATIC_RUNTIME=OFF
-  -DISPC_EXECUTABLE=${LIBDIR}/ispc/bin/ispc
-  -DOIDN_FILTER_RTLIGHTMAP=OFF
-  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
-)
-
-if(WIN32)
-  set(OIDN_EXTRA_ARGS
-    ${OIDN_EXTRA_ARGS}
-    -DTBB_DEBUG_LIBRARY=${LIBDIR}/tbb/lib/tbb.lib
-    -DTBB_DEBUG_LIBRARY_MALLOC=${LIBDIR}/tbb/lib/tbbmalloc.lib
-  )
-else()
-  set(OIDN_EXTRA_ARGS
-    ${OIDN_EXTRA_ARGS}
-    -Dtbb_LIBRARY_RELEASE=${LIBDIR}/tbb/lib/tbb_static.a
-    -Dtbbmalloc_LIBRARY_RELEASE=${LIBDIR}/tbb/lib/tbbmalloc_static.a
-  )
-endif()
-
-ExternalProject_Add(external_openimagedenoise
-  URL file://${PACKAGE_DIR}/${OIDN_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OIDN_HASH_TYPE}=${OIDN_HASH}
-  PREFIX ${BUILD_DIR}/openimagedenoise
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimagedenoise ${DEFAULT_CMAKE_FLAGS} ${OIDN_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/openimagedenoise
-)
-
-add_dependencies(
-  external_openimagedenoise
-  external_tbb
-  external_ispc
-  external_python
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_openimagedenoise after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openimagedenoise/include ${HARVEST_TARGET}/openimagedenoise/include
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/openimagedenoise.lib ${HARVEST_TARGET}/openimagedenoise/lib/openimagedenoise.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/common.lib ${HARVEST_TARGET}/openimagedenoise/lib/common.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/dnnl.lib ${HARVEST_TARGET}/openimagedenoise/lib/dnnl.lib
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_openimagedenoise after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/openimagedenoise.lib ${HARVEST_TARGET}/openimagedenoise/lib/openimagedenoise_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/common.lib ${HARVEST_TARGET}/openimagedenoise/lib/common_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimagedenoise/lib/dnnl.lib ${HARVEST_TARGET}/openimagedenoise/lib/dnnl_d.lib
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/openimageio.cmake
+++ b/build_files/build_environment/cmake/openimageio.cmake
@@ -1,139 +1,152 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Release)
-  set(OIIO_TOOLS ON)
+	set(OIIO_TOOLS ON)
 else()
-  set(OIIO_TOOLS OFF)
+	set(OIIO_TOOLS OFF)
 endif()

 if(UNIX AND NOT APPLE)
-  # This causes linking to static pthread libraries which gives link errors.
-  # Since we manually specify library paths it should static link other libs.
-  set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=OFF)
+	# This causes linking to static pthread libraries which gives link errors.
+	# Since we manually specify library paths it should static link other libs.
+	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=OFF)
 else()
-  set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=ON)
+	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=ON)
 endif()

 if(WIN32)
-  set(PNG_LIBNAME libpng16_static${LIBEXT})
-  set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2)
-  set(OPENJPEG_POSTFIX _msvc)
-  if(BUILD_MODE STREQUAL Debug)
-    set(TIFF_POSTFIX d)
-  else()
-    set(TIFF_POSTFIX)
-  endif()
+	set(PNG_LIBNAME libpng16_static${LIBEXT})
+	set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2 -DOPJ_STATIC=1)
+	set(OPENJPEG_POSTFIX _msvc)
 else()
-  set(PNG_LIBNAME libpng${LIBEXT})
-  set(OIIO_SIMD_FLAGS)
-  set(TIFF_POSTFIX)
+	set(PNG_LIBNAME libpng${LIBEXT})
+	set(OIIO_SIMD_FLAGS)
+endif()
+
+if(WITH_WEBP)
+	set(WEBP_ARGS
+		-DWEBP_INCLUDE_DIR=${LIBDIR}/webp/include
+		-DWEBP_LIBRARY=${LIBDIR}/webp/lib/${LIBPREFIX}webp${LIBEXT}
+	)
+	set(WEBP_DEP external_webp)
 endif()

 if(MSVC)
-  set(OPENJPEG_FLAGS
-    -DOpenJPEG_ROOT=${LIBDIR}/openjpeg_msvc
-  )
+	set(OPENJPEG_FLAGS
+		-DOPENJPEG_HOME=${LIBDIR}/openjpeg_msvc
+		-DOPENJPEG_INCLUDE_DIR=${LIBDIR}/openjpeg_msvc/include/openjpeg-${OPENJPEG_SHORT_VERSION}
+		-DOPENJPEG_LIBRARY=${LIBDIR}/openjpeg_msvc/lib/openjp2${LIBEXT}
+		-DOPENJPEG_LIBRARY_DEBUG=${LIBDIR}/openjpeg_msvc/lib/openjp2${LIBEXT}
+	)
 else()
-  set(OPENJPEG_FLAGS
-    -DOpenJPEG_ROOT=${LIBDIR}/openjpeg
-  )
+	set(OPENJPEG_FLAGS
+		-DOPENJPEG_INCLUDE_DIR=${LIBDIR}/openjpeg/include/openjpeg-${OPENJPEG_SHORT_VERSION}
+		-DOPENJPEG_LIBRARY=${LIBDIR}/openjpeg/lib/${OPENJPEG_LIBRARY}
+	)
 endif()

 set(OPENIMAGEIO_EXTRA_ARGS
-  -DBUILD_SHARED_LIBS=OFF
-  ${OPENIMAGEIO_LINKSTATIC}
-  ${DEFAULT_BOOST_FLAGS}
-  -DUSE_LIBSQUISH=OFF
-  -DUSE_QT5=OFF
-  -DUSE_NUKE=OFF
-  -DUSE_OPENVDB=OFF
-  -DUSE_BZIP2=OFF
-  -DUSE_FREETYPE=OFF
-  -DUSE_DCMTK=OFF
-  -DUSE_LIBHEIF=OFF
-  -DUSE_OPENGL=OFF
-  -DUSE_TBB=OFF
-  -DUSE_QT=OFF
-  -DUSE_PYTHON=OFF
-  -DUSE_GIF=OFF
-  -DUSE_OPENCV=OFF
-  -DUSE_OPENJPEG=ON
-  -DUSE_FFMPEG=OFF
-  -DUSE_PTEX=OFF
-  -DUSE_FREETYPE=OFF
-  -DUSE_LIBRAW=OFF
-  -DUSE_OPENCOLORIO=OFF
-  -DUSE_WEBP=ON
-  -DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
-  -DOIIO_BUILD_TESTS=OFF
-  -DBUILD_TESTING=OFF
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
-  -DPNG_LIBRARY=${LIBDIR}/png/lib/${PNG_LIBNAME}
-  -DPNG_PNG_INCLUDE_DIR=${LIBDIR}/png/include
-  -DTIFF_LIBRARY=${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${TIFF_POSTFIX}${LIBEXT}
-  -DTIFF_INCLUDE_DIR=${LIBDIR}/tiff/include
-  -DJPEG_LIBRARY=${LIBDIR}/jpeg/lib/${JPEG_LIBRARY}
-  -DJPEG_INCLUDE_DIR=${LIBDIR}/jpeg/include
-  ${OPENJPEG_FLAGS}
-  -DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmThread${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_IEX_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Iex${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DSTOP_ON_WARNING=OFF
-  -DUSE_EXTERNAL_PUGIXML=ON
-  -DPUGIXML_LIBRARY=${LIBDIR}/pugixml/lib/${LIBPREFIX}pugixml${LIBEXT}
-  -DPUGIXML_INCLUDE_DIR=${LIBDIR}/pugixml/include/
-  -DBUILD_MISSING_ROBINMAP=OFF
-  -DBUILD_MISSING_FMT=OFF
-  -DFMT_INCLUDE_DIR=${LIBDIR}/fmt/include/
-  -DRobinmap_ROOT=${LIBDIR}/robinmap
-  -DWebP_ROOT=${LIBDIR}/webp
-  ${OIIO_SIMD_FLAGS}
-  -DOpenEXR_ROOT=${LIBDIR}/openexr
-  -DImath_ROOT=${LIBDIR}/imath
+	-DBUILDSTATIC=ON
+	${OPENIMAGEIO_LINKSTATIC}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/openexr/
+	-DOPENEXR_ILMIMF_LIBRARIES=${LIBDIR}/openexr/lib/IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-OIIO_BUILD_CPP11=ON
+	-DUSE_OPENGL=OFF
+	-DUSE_TBB=OFF
+	-DUSE_FIELD3D=OFF
+	-DUSE_QT=OFF
+	-DUSE_PYTHON=OFF
+	-DUSE_GIF=OFF
+	-DUSE_OPENCV=OFF
+	-DUSE_OPENSSL=OFF
+	-DUSE_OPENJPEG=ON
+	-DUSE_FFMPEG=OFF
+	-DUSE_PTEX=OFF
+	-DUSE_FREETYPE=OFF
+	-DUSE_LIBRAW=OFF
+	-DUSE_PYTHON=OFF
+	-DUSE_PYTHON3=OFF
+	-DUSE_OCIO=OFF
+	-DUSE_WEBP=${WITH_WEBP}
+	-DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
+	-DOIIO_BUILD_TESTS=OFF
+	-DBUILD_TESTING=OFF
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
+	-DPNG_LIBRARY=${LIBDIR}/png/lib/${PNG_LIBNAME}
+	-DPNG_PNG_INCLUDE_DIR=${LIBDIR}/png/include
+	-DTIFF_LIBRARY=${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT}
+	-DTIFF_INCLUDE_DIR=${LIBDIR}/tiff/include
+	-DJPEG_LIBRARY=${LIBDIR}/jpg/lib/${JPEG_LIBRARY}
+	-DJPEG_INCLUDE_DIR=${LIBDIR}/jpg/include
+	${OPENJPEG_FLAGS}
+	-DOCIO_PATH=${LIBDIR}/opencolorio/
+	-DOpenEXR_USE_STATIC_LIBS=On
+	-DOPENEXR_HOME=${LIBDIR}/openexr/
+	-DILMBASE_INCLUDE_PATH=${LIBDIR}/ilmbase/
+	-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase/
+	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
+	-DOPENEXR_HALF_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_IMATH_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+	-DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+	-DSTOP_ON_WARNING=OFF
+	${WEBP_FLAGS}
+	${OIIO_SIMD_FLAGS}
 )

 ExternalProject_Add(external_openimageio
-  URL file://${PACKAGE_DIR}/${OPENIMAGEIO_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENIMAGEIO_HASH_TYPE}=${OPENIMAGEIO_HASH}
-  PREFIX ${BUILD_DIR}/openimageio
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimageio ${DEFAULT_CMAKE_FLAGS} ${OPENIMAGEIO_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/openimageio
+	URL ${OPENIMAGEIO_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENIMAGEIO_HASH}
+	PREFIX ${BUILD_DIR}/openimageio
+	PATCH_COMMAND
+		${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/src/include < ${PATCH_DIR}/openimageio_gdi.diff &&
+		${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio_static_libs.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimageio ${DEFAULT_CMAKE_FLAGS} ${OPENIMAGEIO_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openimageio
 )

 add_dependencies(
-  external_openimageio
-  external_png
-  external_zlib
-  external_openexr
-  external_imath
-  external_jpeg
-  external_boost
-  external_tiff
-  external_pugixml
-  external_fmt
-  external_robinmap
-  external_openjpeg${OPENJPEG_POSTFIX}
-  external_webp
+	external_openimageio
+	external_png external_zlib
+	external_ilmbase
+	external_openexr
+	external_jpeg
+	external_boost
+	external_tiff
+	external_opencolorio
+	external_openjpeg${OPENJPEG_POSTFIX}
+	${WEBP_DEP}
 )
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_openimageio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/include ${HARVEST_TARGET}/OpenImageIO/include
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/lib ${HARVEST_TARGET}/OpenImageIO/lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/OpenImageIO/bin/idiff.exe ${HARVEST_TARGET}/OpenImageIO/bin/idiff.exe
-
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_openimageio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_d.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_Util_d.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_Util_d.lib
-      DEPENDEES install
-    )
-  endif()
+if(NOT WIN32)
+	add_dependencies(
+		external_openimageio
+		external_opencolorio_extra
+	)
 endif()
--- a/build_files/build_environment/cmake/openjpeg.cmake
+++ b/build_files/build_environment/cmake/openjpeg.cmake
@@ -1,52 +1,64 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 # Note the encoder/decoder may use png/tiff/lcms system libraries, but the
 # library itself does not depend on them, so should give no problems.

+set(OPENJPEG_EXTRA_ARGS -DBUILD_SHARED_LIBS=OFF)
+
 if(WIN32)
-  set(OPENJPEG_EXTRA_ARGS -G "MSYS Makefiles" -DBUILD_PKGCONFIG_FILES=On)
+	set(OPENJPEG_EXTRA_ARGS -G "MSYS Makefiles" -DBUILD_PKGCONFIG_FILES=On)
 else()
-  set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
+	set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
 endif()

-set(OPENJPEG_EXTRA_ARGS
-  ${OPENJPEG_EXTRA_ARGS}
-  -DBUILD_SHARED_LIBS=OFF
-  -DBUILD_CODEC=OFF
-)
-
 ExternalProject_Add(external_openjpeg
-  URL file://${PACKAGE_DIR}/${OPENJPEG_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENJPEG_HASH_TYPE}=${OPENJPEG_HASH}
-  PREFIX ${BUILD_DIR}/openjpeg
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg ${BUILD_DIR}/openjpeg/src/external_openjpeg
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make install
-  INSTALL_DIR ${LIBDIR}/openjpeg
+	URL ${OPENJPEG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${OPENJPEG_HASH}
+	PREFIX ${BUILD_DIR}/openjpeg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF ${BUILD_DIR}/openjpeg/src/external_openjpeg
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make install
+	INSTALL_DIR ${LIBDIR}/openjpeg
 )

-# On windows ffmpeg wants a mingw build, while oiio needs a msvc build.
+#on windows ffmpeg wants a mingw build, while oiio needs a msvc build
 if(MSVC)
-  set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
-  ExternalProject_Add(external_openjpeg_msvc
-    URL file://${PACKAGE_DIR}/${OPENJPEG_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${OPENJPEG_HASH_TYPE}=${OPENJPEG_HASH}
-    PREFIX ${BUILD_DIR}/openjpeg_msvc
-    CMAKE_ARGS ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg_msvc -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF
-    INSTALL_DIR ${LIBDIR}/openjpeg_msvc
-  )
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_openjpeg_msvc after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openjpeg_msvc/lib ${HARVEST_TARGET}/openjpeg/lib &&
-          ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openjpeg_msvc/include ${HARVEST_TARGET}/openjpeg/include
-      DEPENDEES install
-    )
-  endif()
+	set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
+	ExternalProject_Add(external_openjpeg_msvc
+		URL ${OPENJPEG_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH SHA256=${OPENJPEG_HASH}
+		PREFIX ${BUILD_DIR}/openjpeg_msvc
+		CMAKE_ARGS ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg_msvc -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF
+		INSTALL_DIR ${LIBDIR}/openjpeg_msvc
+	)
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_openjpeg_msvc after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openjpeg_msvc/lib ${HARVEST_TARGET}/openjpeg/lib &&
+					${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openjpeg_msvc/include ${HARVEST_TARGET}/openjpeg/include
+			DEPENDEES install
+		)
+	endif()
 endif()

 set(OPENJPEG_LIBRARY libopenjp2${LIBEXT})
 if(MSVC)
-  set_target_properties(external_openjpeg PROPERTIES FOLDER Mingw)
+	set_target_properties(external_openjpeg PROPERTIES FOLDER Mingw)
 endif()
--- a/build_files/build_environment/cmake/openmp.cmake
+++ b/build_files/build_environment/cmake/openmp.cmake
@@ -1,23 +1,32 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

-if(APPLE)
-  set(OPENMP_PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openmp/src/external_openmp < ${PATCH_DIR}/openmp.diff)
-else()
-  set(OPENMP_PATCH_COMMAND)
-endif()

 ExternalProject_Add(external_openmp
-  URL file://${PACKAGE_DIR}/${OPENMP_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENMP_HASH_TYPE}=${OPENMP_HASH}
-  PREFIX ${BUILD_DIR}/openmp
-  PATCH_COMMAND ${OPENMP_PATCH_COMMAND}
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openmp ${DEFAULT_CMAKE_FLAGS}
-  INSTALL_COMMAND cd ${BUILD_DIR}/openmp/src/external_openmp-build && install_name_tool -id @rpath/libomp.dylib runtime/src/libomp.dylib && make install
-  INSTALL_DIR ${LIBDIR}/openmp
+	URL ${OPENMP_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENMP_HASH}
+	PREFIX ${BUILD_DIR}/openmp
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openmp ${DEFAULT_CMAKE_FLAGS}
+	INSTALL_DIR ${LIBDIR}/clang
 )

 add_dependencies(
-  external_openmp
-  ll
+	external_openmp
+	external_clang
 )
--- a/build_files/build_environment/cmake/openpgl.cmake
+++ b/build_files/build_environment/cmake/openpgl.cmake
@@ -1,47 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# Note the utility apps may use png/tiff/gif system libraries, but the
-# library itself does not depend on them, so should give no problems.
-
-set(OPENPGL_EXTRA_ARGS
-    -DOPENPGL_BUILD_STATIC=ON
-    -DOPENPGL_TBB_ROOT=${LIBDIR}/tbb
-    -DTBB_ROOT=${LIBDIR}/tbb
-    -DCMAKE_DEBUG_POSTFIX=_d
-)
-
-if(TBB_STATIC_LIBRARY)
-  set(OPENPGL_EXTRA_ARGS
-    ${OPENPGL_EXTRA_ARGS}
-    -DOPENPGL_TBB_COMPONENT=tbb_static
-  )
-endif()
-
-ExternalProject_Add(external_openpgl
-    URL file://${PACKAGE_DIR}/${OPENPGL_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${OPENPGL_HASH_TYPE}=${OPENPGL_HASH}
-    PREFIX ${BUILD_DIR}/openpgl
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openpgl ${DEFAULT_CMAKE_FLAGS} ${OPENPGL_EXTRA_ARGS}
-    INSTALL_DIR ${LIBDIR}/openpgl
-)
-
-add_dependencies(
-    external_openpgl
-    external_tbb
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_openpgl after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openpgl ${HARVEST_TARGET}/openpgl
-      DEPENDEES install
-    )
-  else()
-  ExternalProject_Add_Step(external_openpgl after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openpgl/lib/openpgl_d.lib ${HARVEST_TARGET}/openpgl/lib/openpgl_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openpgl/lib/cmake/openpgl-${OPENPGL_SHORT_VERSION}/openpgl_Exports-debug.cmake ${HARVEST_TARGET}/openpgl/lib/cmake/openpgl-${OPENPGL_SHORT_VERSION}/openpgl_Exports-debug.cmake
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/opensubdiv.cmake
+++ b/build_files/build_environment/cmake/opensubdiv.cmake
@@ -1,68 +1,102 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(OPENSUBDIV_EXTRA_ARGS
-  -DNO_LIB=OFF
-  -DNO_EXAMPLES=ON
-  -DNO_TUTORIALS=ON
-  -DNO_REGRESSION=ON
-  -DNO_PTEX=ON
-  -DNO_DOC=ON
-  -DNO_OMP=ON
-  -DNO_TBB=OFF
-  -DNO_CUDA=ON
-  -DNO_OPENCL=ON
-  -DNO_CLEW=ON
-  -DNO_OPENGL=OFF
-  -DNO_METAL=OFF
-  -DNO_DX=ON
-  -DNO_TESTS=ON
-  -DNO_GLTESTS=ON
-  -DNO_GLEW=ON
-  -DNO_GLFW=ON
-  -DNO_GLFW_X11=ON
+	-DNO_EXAMPLES=ON
+	-DNO_REGRESSION=ON
+	-DNO_PYTHON=ON
+	-DNO_MAYA=ON
+	-DNO_PTEX=ON
+	-DNO_DOC=ON
+	-DNO_CLEW=OFF
+	-DNO_OPENCL=OFF
+	-DNO_TUTORIALS=ON
+	-DGLEW_INCLUDE_DIR=${LIBDIR}/glew/include
+	-DGLEW_LIBRARY=${LIBDIR}/glew/lib/libGLEW${LIBEXT}
+	-DGLFW_INCLUDE_DIR=${LIBDIR}/glfw/include
+	-DGLFW_LIBRARIES=${LIBDIR}/glfw/lib/glfw3${LIBEXT}
 )

 if(WIN32)
-  set(OPENSUBDIV_EXTRA_ARGS
-    ${OPENSUBDIV_EXTRA_ARGS}
-    -DTBB_INCLUDE_DIR=${LIBDIR}/tbb/include
-    -DTBB_LIBRARIES=${LIBDIR}/tbb/lib/tbb.lib
-  )
+	set(OPENSUBDIV_EXTRA_ARGS
+		${OPENSUBDIV_EXTRA_ARGS}
+		-DTBB_INCLUDE_DIR=${LIBDIR}/tbb/include
+		-DTBB_LIBRARIES=${LIBDIR}/tbb/lib/tbb_static.lib
+		-DCLEW_INCLUDE_DIR=${LIBDIR}/clew/include/CL
+		-DCLEW_LIBRARY=${LIBDIR}/clew/lib/clew${LIBEXT}
+		-DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
+		-DCUEW_LIBRARY=${LIBDIR}/cuew/lib/cuew${LIBEXT}
+		-DCMAKE_EXE_LINKER_FLAGS_RELEASE=libcmt.lib
+	)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(OPENSUBDIV_EXTRA_ARGS
+			${OPENSUBDIV_EXTRA_ARGS}
+			-DNO_CUDA=OFF
+		)
+	else()
+		set(OPENSUBDIV_EXTRA_ARGS
+			${OPENSUBDIV_EXTRA_ARGS}
+			-DNO_CUDA=ON
+		)
+	endif()
+
 else()
-  set(OPENSUBDIV_EXTRA_ARGS
-    ${OPENSUBDIV_EXTRA_ARGS}
-    -DTBB_INCLUDE_DIR=${LIBDIR}/tbb/include
-    -DTBB_tbb_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
-  )
+	set(OPENSUBDIV_EXTRA_ARGS
+		${OPENSUBDIV_EXTRA_ARGS}
+		-DNO_CUDA=ON
+		-DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
+		-DCLEW_INCLUDE_DIR=${LIBDIR}/clew/include/CL
+		-DCLEW_LIBRARY=${LIBDIR}/clew/lib/static/${LIBPREFIX}clew${LIBEXT}
+	)
 endif()

 ExternalProject_Add(external_opensubdiv
-  URL file://${PACKAGE_DIR}/${OPENSUBDIV_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENSUBDIV_HASH_TYPE}=${OPENSUBDIV_HASH}
-  PREFIX ${BUILD_DIR}/opensubdiv
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opensubdiv -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${OPENSUBDIV_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/opensubdiv
+	URL ${OPENSUBDIV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENSUBDIV_Hash}
+	PREFIX ${BUILD_DIR}/opensubdiv
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/opensubdiv/src/external_opensubdiv < ${PATCH_DIR}/opensubdiv.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opensubdiv -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${OPENSUBDIV_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opensubdiv
 )

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_opensubdiv after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opensubdiv/lib ${HARVEST_TARGET}/opensubdiv/lib
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opensubdiv/include ${HARVEST_TARGET}/opensubdiv/include
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_opensubdiv after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdCPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdCPU_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdGPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdGPU_d.lib
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_opensubdiv after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opensubdiv/lib ${HARVEST_TARGET}/opensubdiv/lib
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opensubdiv/include ${HARVEST_TARGET}/opensubdiv/include
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_opensubdiv after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdCPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdCPU_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdGPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdGPU_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()

 add_dependencies(
-  external_opensubdiv
-  external_tbb
+	external_opensubdiv
+	external_glew
+	external_glfw
+	external_clew
+	external_cuew
+	external_tbb
 )
--- a/build_files/build_environment/cmake/openvdb.cmake
+++ b/build_files/build_environment/cmake/openvdb.cmake
@@ -1,87 +1,102 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Debug)
-  set(BLOSC_POST _d)
-endif()
-
-if(WIN32)
-  set(OPENVDB_SHARED ON)
-  set(OPENVDB_STATIC OFF)
-else()
-  set(OPENVDB_SHARED OFF)
-  set(OPENVDB_STATIC ON)
+	set(BLOSC_POST _d)
 endif()

 set(OPENVDB_EXTRA_ARGS
-  ${DEFAULT_BOOST_FLAGS}
-  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
-  -DBoost_USE_MULTITHREADED=ON
-  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
-  -DBOOST_ROOT=${LIBDIR}/boost
-  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
-  -DBlosc_INCLUDE_DIR=${LIBDIR}/blosc/include/
-  -DBlosc_LIBRARY=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DBlosc_LIBRARY_RELEASE=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DBlosc_LIBRARY_DEBUG=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DOPENVDB_BUILD_UNITTESTS=OFF
-  -DOPENVDB_BUILD_PYTHON_MODULE=OFF
-  -DOPENVDB_BUILD_NANOVDB=ON
-  -DNANOVDB_BUILD_TOOLS=OFF
-  -DBlosc_ROOT=${LIBDIR}/blosc/
-  -DTBB_ROOT=${LIBDIR}/tbb/
-  -DOPENVDB_CORE_SHARED=${OPENVDB_SHARED}
-  -DOPENVDB_CORE_STATIC=${OPENVDB_STATIC}
-  -DOPENVDB_BUILD_BINARIES=OFF
-  -DCMAKE_DEBUG_POSTFIX=_d
-  -DBLOSC_USE_STATIC_LIBS=ON
-  -DUSE_NANOVDB=ON
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DBLOSC_INCLUDE_DIR=${LIBDIR}/blosc/include/
+	-DBLOSC_blosc_LIBRARY=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
+	-DOPENVDB_ENABLE_3_ABI_COMPATIBLE=OFF
+	-DOPENVDB_BUILD_UNITTESTS=Off
+	-DOPENVDB_BUILD_PYTHON_MODULE=Off
+	-DGLEW_LOCATION=${LIBDIR}/glew/
+	-DBLOSC_LOCATION=${LIBDIR}/blosc/
+	-DTBB_LOCATION=${LIBDIR}/tbb/
+	-DTBB_ROOT=${LIBDIR}/tbb/
+	-DOPENEXR_LOCATION=${LIBDIR}/openexr
+	-DILMBASE_LOCATION=${LIBDIR}/ilmbase
+	-DIlmbase_HALF_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DIlmbase_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DIlmbase_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOpenexr_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+	-DTBB_LIBRARYDIR=${LIBDIR}/tbb/lib
+	-DTbb_TBB_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
+	-DTBB_LIBRARY_PATH=${LIBDIR}/tbb/lib
 )

 if(WIN32)
-  # Namespaces seem to be buggy and cause linker errors due to things not
-  # being in the correct namespace
-  # needs to link pthreads due to it being a blosc dependency
-  set(OPENVDB_EXTRA_ARGS ${OPENVDB_EXTRA_ARGS}
-    -DCMAKE_CXX_STANDARD_LIBRARIES="${LIBDIR}/pthreads/lib/pthreadVC3.lib"
-  )
+	# Namespaces seem to be buggy and cause linker errors due to things not
+	# being in the correct namespace
+	# needs to link pthreads due to it being a blosc dependency
+	set(OPENVDB_EXTRA_ARGS ${OPENVDB_EXTRA_ARGS}
+		-DOPENEXR_NAMESPACE_VERSIONING=OFF
+		-DEXTRA_LIBS:FILEPATH=${LIBDIR}/pthreads/lib/pthreadVC2.lib
+	)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+		set(OPENVDB_EXTRA_ARGS ${OPENVDB_EXTRA_ARGS}
+			-DCMAKE_SHARED_LINKER_FLAGS="/safeseh:no"
+			-DCMAKE_EXE_LINKER_FLAGS="/safeseh:no"
+		)
+	endif()
 endif()

 ExternalProject_Add(openvdb
-  URL file://${PACKAGE_DIR}/${OPENVDB_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENVDB_HASH_TYPE}=${OPENVDB_HASH}
-  PREFIX ${BUILD_DIR}/openvdb
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openvdb/src/openvdb < ${PATCH_DIR}/openvdb.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openvdb ${DEFAULT_CMAKE_FLAGS} ${OPENVDB_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/openvdb
+	URL ${OPENVDB_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENVDB_HASH}
+	PREFIX ${BUILD_DIR}/openvdb
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openvdb/src/openvdb < ${PATCH_DIR}/openvdb.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openvdb ${DEFAULT_CMAKE_FLAGS} ${OPENVDB_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openvdb
 )

 add_dependencies(
-  openvdb
-  external_tbb
-  external_boost
-  external_zlib
-  external_blosc
+	openvdb
+	external_tbb
+	external_boost
+	external_ilmbase
+	external_openexr
+	external_zlib
+	external_blosc
 )

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(openvdb after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openvdb/include ${HARVEST_TARGET}/openvdb/include
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/openvdb.lib ${HARVEST_TARGET}/openvdb/lib/openvdb.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/bin/openvdb.dll ${HARVEST_TARGET}/openvdb/bin/openvdb.dll
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(openvdb after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/openvdb_d.lib ${HARVEST_TARGET}/openvdb/lib/openvdb_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/bin/openvdb_d.dll ${HARVEST_TARGET}/openvdb/bin/openvdb_d.dll
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(openvdb after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openvdb/include ${HARVEST_TARGET}/openvdb/include
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/libopenvdb.lib ${HARVEST_TARGET}/openvdb/lib/openvdb.lib
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(openvdb after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/libopenvdb.lib ${HARVEST_TARGET}/openvdb/lib/openvdb_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/options.cmake
+++ b/build_files/build_environment/cmake/options.cmake
@@ -1,195 +1,218 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  option(ENABLE_MINGW64 "Enable building of ffmpeg/iconv/libsndfile/fftw3 by installing mingw64" ON)
+	option(ENABLE_MINGW64 "Enable building of ffmpeg/iconv/libsndfile/lapack/fftw3 by installing mingw64" ON)
 endif()
-option(FORCE_CHECK_HASH "Force a check of all hashses during CMake the configure phase" OFF)
-option(WITH_BOOST_PYTHON "Enable building of boost with python support" OFF)
-cmake_host_system_information(RESULT NUM_CORES QUERY NUMBER_OF_LOGICAL_CORES)
-set(MAKE_THREADS ${NUM_CORES} CACHE STRING "Number of threads to run make with")
+option(WITH_WEBP "Enable building of oiio with webp support" OFF)
+set(MAKE_THREADS 1 CACHE STRING "Number of threads to run make with")

 if(NOT BUILD_MODE)
-  set(BUILD_MODE "Release")
-  message(STATUS "Build type not specified: defaulting to a release build.")
+	set(BUILD_MODE "Release")
+	message(STATUS "Build type not specified: defaulting to a release build.")
 endif()
 message("BuildMode = ${BUILD_MODE}")

 if(BUILD_MODE STREQUAL "Debug")
-  set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Debug)
-else()
-  set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Release)
+	set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Debug)
+else(BUILD_MODE STREQUAL "Debug")
+	set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Release)
 endif()

-set(DOWNLOAD_DIR "${CMAKE_CURRENT_BINARY_DIR}/downloads" CACHE STRING "Path for downloaded files")
-
-set(PACKAGE_DIR "${CMAKE_CURRENT_BINARY_DIR}/packages" CACHE PATH "default path for downloaded packages")
-option(PACKAGE_USE_UPSTREAM_SOURCES "Use sources upstream to download the package sources, when OFF the blender mirror will be used" ON)
-
+option(DOWNLOAD_DIR "Path for downloaded files" ${CMAKE_CURRENT_SOURCE_DIR}/downloads)
 file(TO_CMAKE_PATH ${DOWNLOAD_DIR} DOWNLOAD_DIR)
-file(TO_CMAKE_PATH ${PACKAGE_DIR} PACKAGE_DIR)
 set(PATCH_DIR ${CMAKE_CURRENT_SOURCE_DIR}/patches)
 set(BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/build)

 message("LIBDIR = ${LIBDIR}")
 message("DOWNLOAD_DIR = ${DOWNLOAD_DIR}")
-message("PACKAGE_DIR = ${PACKAGE_DIR}")
 message("PATCH_DIR = ${PATCH_DIR}")
 message("BUILD_DIR = ${BUILD_DIR}")

 if(WIN32)
-  set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/patch.exe)
-  set(LIBEXT ".lib")
-  set(SHAREDLIBEXT ".lib")
-  set(LIBPREFIX "")
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/patch.exe)
+	else()
+		set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/patch.exe)
+	endif()
+	set(LIBEXT ".lib")
+	set(LIBPREFIX "")

-  # For OIIO and OSL
-  set(COMMON_DEFINES /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS)
+	# For OIIO and OSL
+	set(COMMON_DEFINES /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS)

-  if(MSVC_VERSION GREATER 1909)
-    set(COMMON_MSVC_FLAGS "/Wv:18") #some deps with warnings as error aren't quite ready for dealing with the new 2017 warnings.
-  endif()
-  string(APPEND COMMON_MSVC_FLAGS " /bigobj")
-  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MDd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  else()
-    set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MDd ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /D_DEBUG /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  endif()
-  set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "/MD ${COMMON_MSVC_FLAGS} /O1 /Ob1 /D NDEBUG /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_C_FLAGS_RELEASE "/MD ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "/MD ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	if(MSVC_VERSION GREATER 1909)
+		set(COMMON_MSVC_FLAGS "/Wv:18") #some deps with warnings as error aren't quite ready for dealing with the new 2017 warnings.
+	endif()
+	set(COMMON_MSVC_FLAGS "${COMMON_MSVC_FLAGS} /bigobj")
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MTd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	else()
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MTd ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /D_DEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	endif()
+	set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "/MT ${COMMON_MSVC_FLAGS} /O1 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_C_FLAGS_RELEASE "/MT ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "/MT ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")

-  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/MDd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  else()
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/D_DEBUG /D PLATFORM_WINDOWS /MTd  ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  endif()
-  set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MD /${COMMON_MSVC_FLAGS} /O1 /Ob1 /D NDEBUG  /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "/MD ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MD ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/MTd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	else()
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/D_DEBUG /D PLATFORM_WINDOWS /MTd  ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	endif()
+	set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MT /${COMMON_MSVC_FLAGS} /O1 /Ob1 /D NDEBUG  /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "/MT ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MT ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")

-  set(PLATFORM_FLAGS)
-  set(PLATFORM_CXX_FLAGS)
-  set(PLATFORM_CMAKE_FLAGS)
+	set(PLATFORM_FLAGS)
+	set(PLATFORM_CXX_FLAGS)
+	set(PLATFORM_CMAKE_FLAGS)

-  set(MINGW_PATH ${DOWNLOAD_DIR}/mingw/mingw64)
-  set(MINGW_SHELL ming64sh.cmd)
-  set(PERL_SHELL ${DOWNLOAD_DIR}/perl/portableshell.bat)
-  set(MINGW_HOST x86_64-w64-mingw32)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(MINGW_PATH ${DOWNLOAD_DIR}/mingw/mingw64)
+		set(MINGW_SHELL ming64sh.cmd)
+		set(PERL_SHELL ${DOWNLOAD_DIR}/perl/portableshell.bat)
+		set(MINGW_HOST x86_64-w64-mingw32)
+	else()
+		set(MINGW_PATH ${DOWNLOAD_DIR}/mingw/mingw32)
+		set(MINGW_SHELL ming32sh.cmd)
+		set(PERL_SHELL ${DOWNLOAD_DIR}/perl32/portableshell.bat)
+		set(MINGW_HOST i686-w64-mingw32)
+	endif()

-  set(CONFIGURE_ENV
-    cd ${MINGW_PATH} &&
-    call ${PERL_SHELL} &&
-    call ${MINGW_SHELL} &&
-    set path &&
-    set CFLAGS=-g &&
-    set LDFLAGS=-Wl,--as-needed -static-libgcc
-  )
+	set(CONFIGURE_ENV
+		cd ${MINGW_PATH} &&
+		call ${MINGW_SHELL} &&
+		call ${PERL_SHELL} &&
+		set path &&
+		set CFLAGS=-g &&
+		set LDFLAGS=-Wl,--as-needed -static-libgcc
+	)

-  set(CONFIGURE_ENV_NO_PERL
-    cd ${MINGW_PATH} &&
-    call ${MINGW_SHELL} &&
-    set path &&
-    set CFLAGS=-g &&
-    set LDFLAGS=-Wl,--as-needed -static-libgcc
-  )
+	set(CONFIGURE_ENV_NO_PERL
+		cd ${MINGW_PATH} &&
+		call ${MINGW_SHELL} &&
+		set path &&
+		set CFLAGS=-g &&
+		set LDFLAGS=-Wl,--as-needed -static-libgcc
+	)

-  set(CONFIGURE_COMMAND sh ./configure)
-  set(CONFIGURE_COMMAND_NO_TARGET ${CONFIGURE_COMMAND})
+	set(CONFIGURE_COMMAND sh ./configure)
+	set(CONFIGURE_COMMAND_NO_TARGET ${CONFIGURE_COMMAND})
 else()
-  set(PATCH_CMD patch)
-  set(LIBEXT ".a")
-  set(SHAREDLIBEXT ".so")
-  set(LIBPREFIX "lib")
+	set(PATCH_CMD patch)
+	set(LIBEXT ".a")
+	set(LIBPREFIX "lib")

-  if(APPLE)
-    # Use same Xcode detection as Blender itself.
-    include(../cmake/platform/platform_apple_xcode.cmake)
+	if(APPLE)
+		# Let's get the current Xcode dir, to support xcode-select
+		execute_process(
+			COMMAND xcode-select --print-path
+			OUTPUT_VARIABLE XCODE_DEV_PATH OUTPUT_STRIP_TRAILING_WHITESPACE
+		)
+		set(OSX_ARCHITECTURES x86_64)
+		set(OSX_DEPLOYMENT_TARGET 10.9)
+		set(OSX_SDK_VERSION 10.13)
+		set(OSX_SYSROOT ${XCODE_DEV_PATH}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX${OSX_SDK_VERSION}.sdk)

-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-      set(BLENDER_PLATFORM_ARM ON)
-    endif()
+		set(PLATFORM_CFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET}")
+		set(PLATFORM_CXXFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -std=c++11 -stdlib=libc++")
+		set(PLATFORM_LDFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET}")
+		set(PLATFORM_BUILD_TARGET --build=x86_64-apple-darwin13.0.0) # OS X 10.9
+		set(PLATFORM_CMAKE_FLAGS
+			-DCMAKE_OSX_ARCHITECTURES:STRING=${OSX_ARCHITECTURES}
+			-DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${OSX_DEPLOYMENT_TARGET}
+			-DCMAKE_OSX_SYSROOT:PATH=${OSX_SYSROOT}
+		)
+	else()
+		set(PLATFORM_CFLAGS "-fPIC")
+		set(PLATFORM_CXXFLAGS "-std=c++11 -fPIC")
+		set(PLATFORM_LDFLAGS)
+		set(PLATFORM_BUILD_TARGET)
+		set(PLATFORM_CMAKE_FLAGS -DCMAKE_INSTALL_LIBDIR=lib)
+	endif()

-    set(PLATFORM_CFLAGS "-isysroot ${CMAKE_OSX_SYSROOT} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET} -arch ${CMAKE_OSX_ARCHITECTURES}")
-    set(PLATFORM_CXXFLAGS "-isysroot ${CMAKE_OSX_SYSROOT} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET} -std=c++11 -stdlib=libc++ -arch ${CMAKE_OSX_ARCHITECTURES}")
-    set(PLATFORM_LDFLAGS "-isysroot ${CMAKE_OSX_SYSROOT} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET} -arch ${CMAKE_OSX_ARCHITECTURES}")
-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64")
-      set(PLATFORM_BUILD_TARGET --build=x86_64-apple-darwin17.0.0) # OS X 10.13
-    else()
-      set(PLATFORM_BUILD_TARGET --build=aarch64-apple-darwin20.0.0) # macOS 11.00
-    endif()
-    set(PLATFORM_CMAKE_FLAGS
-      -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}
-      -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${CMAKE_OSX_DEPLOYMENT_TARGET}
-      -DCMAKE_OSX_SYSROOT:PATH=${CMAKE_OSX_SYSROOT}
-    )
-  else()
-    if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64")
-      set(BLENDER_PLATFORM_ARM ON)
-    endif()
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "-O2 -DNDEBUG ${PLATFORM_CFLAGS}")
+	else()
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "-g ${PLATFORM_CFLAGS}")
+	endif()
+	set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG ${PLATFORM_CFLAGS}")
+	set(BLENDER_CMAKE_C_FLAGS_RELEASE "-O2 -DNDEBUG ${PLATFORM_CFLAGS}")
+	set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG ${PLATFORM_CFLAGS}")

-    set(PLATFORM_CFLAGS "-fPIC")
-    set(PLATFORM_CXXFLAGS "-std=c++11 -fPIC")
-    set(PLATFORM_LDFLAGS)
-    set(PLATFORM_BUILD_TARGET)
-    set(PLATFORM_CMAKE_FLAGS -DCMAKE_INSTALL_LIBDIR=lib)
-  endif()
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	else()
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-g ${PLATFORM_CXXFLAGS}")
+	endif()

-  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_C_FLAGS_DEBUG "-O2 -DNDEBUG ${PLATFORM_CFLAGS}")
-  else()
-    set(BLENDER_CMAKE_C_FLAGS_DEBUG "-g ${PLATFORM_CFLAGS}")
-  endif()
-  set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG ${PLATFORM_CFLAGS}")
-  set(BLENDER_CMAKE_C_FLAGS_RELEASE "-O2 -DNDEBUG ${PLATFORM_CFLAGS}")
-  set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG ${PLATFORM_CFLAGS}")
+	set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG ${PLATFORM_CXXFLAGS}")

-  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
-  else()
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-g ${PLATFORM_CXXFLAGS}")
-  endif()
-
-  set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG ${PLATFORM_CXXFLAGS}")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG ${PLATFORM_CXXFLAGS}")
-
-  set(CONFIGURE_ENV
-    export MACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET} &&
-    export MACOSX_SDK_VERSION=${CMAKE_OSX_DEPLOYMENT_TARGET} &&
-    export CFLAGS=${PLATFORM_CFLAGS} &&
-    export CXXFLAGS=${PLATFORM_CXXFLAGS} &&
-    export LDFLAGS=${PLATFORM_LDFLAGS}
-  )
-  set(CONFIGURE_ENV_NO_PERL ${CONFIGURE_ENV})
-  set(CONFIGURE_COMMAND ./configure ${PLATFORM_BUILD_TARGET})
-  set(CONFIGURE_COMMAND_NO_TARGET ./configure)
+	set(CONFIGURE_ENV
+		export MACOSX_DEPLOYMENT_TARGET=${OSX_DEPLOYMENT_TARGET} &&
+		export CFLAGS=${PLATFORM_CFLAGS} &&
+		export CXXFLAGS=${PLATFORM_CXXFLAGS} &&
+		export LDFLAGS=${PLATFORM_LDFLAGS}
+	)
+	set(CONFIGURE_ENV_NO_PERL ${CONFIGURE_ENV})
+	set(CONFIGURE_COMMAND ./configure ${PLATFORM_BUILD_TARGET})
+	set(CONFIGURE_COMMAND_NO_TARGET ./configure)
 endif()

 set(DEFAULT_CMAKE_FLAGS
-  -DCMAKE_BUILD_TYPE=${BUILD_MODE}
-  -DCMAKE_C_FLAGS_DEBUG=${BLENDER_CMAKE_C_FLAGS_DEBUG}
-  -DCMAKE_C_FLAGS_MINSIZEREL=${BLENDER_CMAKE_C_FLAGS_MINSIZEREL}
-  -DCMAKE_C_FLAGS_RELEASE=${BLENDER_CMAKE_C_FLAGS_RELEASE}
-  -DCMAKE_C_FLAGS_RELWITHDEBINFO=${BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO}
-  -DCMAKE_CXX_FLAGS_DEBUG=${BLENDER_CMAKE_CXX_FLAGS_DEBUG}
-  -DCMAKE_CXX_FLAGS_MINSIZEREL=${BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL}
-  -DCMAKE_CXX_FLAGS_RELEASE=${BLENDER_CMAKE_CXX_FLAGS_RELEASE}
-  -DCMAKE_CXX_FLAGS_RELWITHDEBINFO=${CMAKE_CXX_FLAGS_RELWITHDEBINFO}
-  ${PLATFORM_CMAKE_FLAGS}
+	-DCMAKE_BUILD_TYPE=${BUILD_MODE}
+	-DCMAKE_C_FLAGS_DEBUG=${BLENDER_CMAKE_C_FLAGS_DEBUG}
+	-DCMAKE_C_FLAGS_MINSIZEREL=${BLENDER_CMAKE_C_FLAGS_MINSIZEREL}
+	-DCMAKE_C_FLAGS_RELEASE=${BLENDER_CMAKE_C_FLAGS_RELEASE}
+	-DCMAKE_C_FLAGS_RELWITHDEBINFO=${BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO}
+	-DCMAKE_CXX_FLAGS_DEBUG=${BLENDER_CMAKE_CXX_FLAGS_DEBUG}
+	-DCMAKE_CXX_FLAGS_MINSIZEREL=${BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL}
+	-DCMAKE_CXX_FLAGS_RELEASE=${BLENDER_CMAKE_CXX_FLAGS_RELEASE}
+	-DCMAKE_CXX_FLAGS_RELWITHDEBINFO=${CMAKE_CXX_FLAGS_RELWITHDEBINFO}
+	${PLATFORM_CMAKE_FLAGS}
 )

 if(WIN32)
-  if(BUILD_MODE STREQUAL Debug)
-    set(ZLIB_LIBRARY zlibstaticd${LIBEXT})
-  else()
-    set(ZLIB_LIBRARY zlibstatic${LIBEXT})
-  endif()
+	#we need both flavors to build the thumbnail dlls
+	if(MSVC12)
+		set(GENERATOR_32 "Visual Studio 12 2013")
+		set(GENERATOR_64 "Visual Studio 12 2013 Win64")
+	elseif(MSVC14)
+		set(GENERATOR_32 "Visual Studio 14 2015")
+		set(GENERATOR_64 "Visual Studio 14 2015 Win64")
+	endif()
+endif()
+
+
+if(WIN32)
+	if(BUILD_MODE STREQUAL Debug)
+		set(ZLIB_LIBRARY zlibstaticd${LIBEXT})
+	else()
+		set(ZLIB_LIBRARY zlibstatic${LIBEXT})
+	endif()
 else()
-  set(ZLIB_LIBRARY libz${LIBEXT})
+	set(ZLIB_LIBRARY libz${LIBEXT})
 endif()

 if(MSVC)
-  set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+	set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 endif()

 set(CMAKE_INSTALL_MESSAGE LAZY)
--- a/build_files/build_environment/cmake/opus.cmake
+++ b/build_files/build_environment/cmake/opus.cmake
@@ -1,19 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-ExternalProject_Add(external_opus
-  URL file://${PACKAGE_DIR}/${OPUS_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPUS_HASH_TYPE}=${OPUS_HASH}
-  PREFIX ${BUILD_DIR}/opus
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/opus/src/external_opus/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/opus
-    --disable-shared
-    --enable-static
-    --with-pic
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/opus/src/external_opus/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/opus/src/external_opus/ && make install
-  INSTALL_DIR ${LIBDIR}/opus
-)
-
-if(MSVC)
-  set_target_properties(external_opus PROPERTIES FOLDER Mingw)
-endif()
--- a/build_files/build_environment/cmake/osl.cmake
+++ b/build_files/build_environment/cmake/osl.cmake
@@ -1,90 +1,132 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  set(OSL_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
-  set(OSL_FLEX_BISON -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe)
+	set(OSL_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+	set(OSL_FLEX_BISON -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe -DFLEX_EXTRA_OPTIONS="--wincompat" -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe)
+	set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/libpng16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+		set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=0)
+	else()
+		set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=sse2)
+	endif()
+	SET(OSL_PLATFORM_FLAGS -DLINKSTATIC=ON)
 else()
-  set(OSL_CMAKE_CXX_STANDARD_LIBRARIES)
-  set(OSL_FLEX_BISON)
-  set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpeg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+	set(OSL_CMAKE_CXX_STANDARD_LIBRARIES)
+	set(OSL_FLEX_BISON)
+	set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+	SET(OSL_PLATFORM_FLAGS)
 endif()

+set(OSL_ILMBASE_CUSTOM_LIBRARIES "${LIBDIR}/ilmbase/lib/Imath${ILMBASE_VERSION_POSTFIX}.lib^^${LIBDIR}/ilmbase/lib/Half{ILMBASE_VERSION_POSTFIX}.lib^^${LIBDIR}/ilmbase/lib/IlmThread${ILMBASE_VERSION_POSTFIX}.lib^^${LIBDIR}/ilmbase/lib/Iex${ILMBASE_VERSION_POSTFIX}.lib")
+set(OSL_LLVM_LIBRARY "${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAnalysis${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAsmParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMBitReader${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMBitWriter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMCodeGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMCore${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMDebugInfo${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMExecutionEngine${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInstCombine${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInstrumentation${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInterpreter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMJIT${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMLinker${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMC${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCDisassembler${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCJIT${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMObject${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMRuntimeDyld${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMScalarOpts${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMSelectionDAG${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMSupport${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTableGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTarget${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTransformUtils${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMVectorize${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86AsmParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86AsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86CodeGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Desc${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Disassembler${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Info${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Utils${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMipa${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMipo${LIBEXT}")
+
 set(OSL_EXTRA_ARGS
-  ${DEFAULT_BOOST_FLAGS}
-  -DOpenEXR_ROOT=${LIBDIR}/openexr/
-  -DOpenImageIO_ROOT=${LIBDIR}/openimageio/
-  -DOSL_BUILD_TESTS=OFF
-  -DOSL_BUILD_MATERIALX=OFF
-  -DPNG_ROOT=${LIBDIR}/png
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
-  ${OSL_FLEX_BISON}
-  -DCMAKE_CXX_STANDARD_LIBRARIES=${OSL_CMAKE_CXX_STANDARD_LIBRARIES}
-  -DBUILD_SHARED_LIBS=OFF
-  -DLINKSTATIC=ON
-  -DOSL_BUILD_PLUGINS=OFF
-  -DSTOP_ON_WARNING=OFF
-  -DUSE_LLVM_BITCODE=OFF
-  -DLLVM_ROOT=${LIBDIR}/llvm/
-  -DLLVM_DIRECTORY=${LIBDIR}/llvm/
-  -DUSE_PARTIO=OFF
-  -DUSE_QT=OFF
-  -DUSE_Qt5=OFF
-  -DINSTALL_DOCS=OFF
-  -Dpugixml_ROOT=${LIBDIR}/pugixml
-  -DTIFF_ROOT=${LIBDIR}/tiff
-  -DJPEG_ROOT=${LIBDIR}/jpeg
-  -DUSE_PYTHON=OFF
-  -DCMAKE_CXX_STANDARD=14
-  -DImath_ROOT=${LIBDIR}/imath
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DLLVM_DIRECTORY=${LIBDIR}/llvm
+	-DLLVM_INCLUDES=${LIBDIR}/llvm/include
+	-DLLVM_LIB_DIR=${LIBDIR}/llvm/lib
+	-DLLVM_VERSION=3.4
+	-DLLVM_LIBRARY=${OSL_LLVM_LIBRARY}
+	-DOPENEXR_HOME=${LIBDIR}/openexr/
+	-DILMBASE_HOME=${LIBDIR}/ilmbase/
+	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
+	-DOPENEXR_HALF_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_IMATH_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex${ILMBASE_VERSION_POSTFIX}${LIBEXT}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+	-DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+	-DOSL_BUILD_TESTS=OFF
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DOPENIMAGEIOHOME=${LIBDIR}/openimageio/
+	-DOPENIMAGEIO_LIBRARY=${OSL_OPENIMAGEIO_LIBRARY}
+	-DOPENIMAGEIO_INCLUDES=${LIBDIR}/openimageio/include
+	${OSL_FLEX_BISON}
+	-DCMAKE_CXX_STANDARD_LIBRARIES=${OSL_CMAKE_CXX_STANDARD_LIBRARIES}
+	-DBUILDSTATIC=ON
+	${OSL_PLATFORM_FLAGS}
+	-DOSL_BUILD_PLUGINS=Off
+	-DSTOP_ON_WARNING=OFF
+	-DUSE_LLVM_BITCODE=OFF
+	-DUSE_PARTIO=OFF
+	${OSL_SIMD_FLAGS}
+	-DPARTIO_LIBRARIES=
 )

+if(WIN32)
+	set(OSL_EXTRA_ARGS
+		${OSL_EXTRA_ARGS}
+		-DPUGIXML_HOME=${LIBDIR}/pugixml
+	)
+elseif(APPLE)
+	# Make symbol hiding consistent with OIIO which defaults to OFF,
+	# avoids linker warnings on macOS
+	set(OSL_EXTRA_ARGS
+		${OSL_EXTRA_ARGS}
+		-DHIDE_SYMBOLS=OFF
+	)
+endif()
+
 ExternalProject_Add(external_osl
-  URL file://${PACKAGE_DIR}/${OSL_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  LIST_SEPARATOR ^^
-  URL_HASH ${OSL_HASH_TYPE}=${OSL_HASH}
-  PREFIX ${BUILD_DIR}/osl
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/osl/src/external_osl < ${PATCH_DIR}/osl.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/osl -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} ${DEFAULT_CMAKE_FLAGS} ${OSL_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/osl
+	URL ${OSL_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	LIST_SEPARATOR ^^
+	URL_HASH MD5=${OSL_HASH}
+	PREFIX ${BUILD_DIR}/osl
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/osl/src/external_osl < ${PATCH_DIR}/osl.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/osl -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} ${DEFAULT_CMAKE_FLAGS} ${OSL_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/osl
 )

 add_dependencies(
-  external_osl
-  external_boost
-  ll
-  external_openexr
-  external_zlib
-  external_openimageio
-  external_pugixml
+	external_osl
+	external_boost
+	ll
+	external_clang
+	external_ilmbase
+	external_openexr
+	external_zlib
+	external_flexbison
+	external_openimageio
+	external_pugixml
 )
-if(WIN32)
-  add_dependencies(
-    external_osl
-    external_flexbison
-  )
-elseif(UNIX AND NOT APPLE)
-  add_dependencies(
-    external_osl
-    external_flex
-  )
-endif()

 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_osl after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/osl/ ${HARVEST_TARGET}/osl
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_osl after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslcomp.lib ${HARVEST_TARGET}/osl/lib/oslcomp_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslexec.lib ${HARVEST_TARGET}/osl/lib/oslexec_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslquery.lib ${HARVEST_TARGET}/osl/lib/oslquery_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslnoise.lib ${HARVEST_TARGET}/osl/lib/oslnoise_d.lib
-      DEPENDEES install
-    )
-  endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_osl after_install
+			COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/osl/ ${HARVEST_TARGET}/osl
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_osl after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslcomp.lib ${HARVEST_TARGET}/osl/lib/oslcomp_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslexec.lib ${HARVEST_TARGET}/osl/lib/oslexec_d.lib
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslquery.lib ${HARVEST_TARGET}/osl/lib/oslquery_d.lib
+			DEPENDEES install
+		)
+	endif()
 endif()
--- a/build_files/build_environment/cmake/package_python.cmake
+++ b/build_files/build_environment/cmake/package_python.cmake
@@ -1,44 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(MSVC)
-  set(PYTARGET ${HARVEST_TARGET}/python/${PYTHON_SHORT_VERSION_NO_DOTS})
-  set(PYSRC ${LIBDIR}/python/)
-
-  if(BUILD_MODE STREQUAL Release)
-    add_custom_command(
-      OUTPUT ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
-      COMMAND echo packaging python
-      COMMAND echo this should output at ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
-      COMMAND ${CMAKE_COMMAND} -E make_directory ${PYTARGET}/libs
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.lib ${PYTARGET}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python.exe ${PYTARGET}/bin/python.exe
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python${PYTHON_SHORT_VERSION_NO_DOTS}.dll ${PYTARGET}/bin/python${PYTHON_SHORT_VERSION_NO_DOTS}.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python3${PYTHON_POSTFIX}.dll ${PYTARGET}/bin/python3${PYTHON_POSTFIX}.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python${PYTHON_SHORT_VERSION_NO_DOTS}.pdb ${PYTARGET}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.pdb
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/include/ ${PYTARGET}/include/
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/lib/ ${PYTARGET}/lib/
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/DLLs/ ${PYTARGET}/DLLs/
-      COMMAND cd ${PYTARGET}/lib/ && for /d /r . %%d in (__pycache__) do @if exist "%%d" echo "%%d" && rd /s/q "%%d"
-    )
-    add_custom_target(Package_Python ALL DEPENDS external_python external_numpy external_python_site_packages OUTPUT ${HARVEST_TARGET}/python/${PYTHON_SHORT_VERSION_NO_DOTS}/bin/python${PYTHON_POSTFIX}.exe)
-  endif()
-
-  if(BUILD_MODE STREQUAL Debug)
-    add_custom_command(
-      OUTPUT ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
-      COMMAND echo packaging python
-      COMMAND echo this should output at ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
-      COMMAND ${CMAKE_COMMAND} -E make_directory ${PYTARGET}/libs
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib ${PYTARGET}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python${PYTHON_POSTFIX}.exe ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll ${PYTARGET}/bin/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python3${PYTHON_POSTFIX}.dll ${PYTARGET}/bin/python3${PYTHON_POSTFIX}.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${PYSRC}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.pdb ${PYTARGET}/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.pdb
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/include/ ${PYTARGET}/include/
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/lib/ ${PYTARGET}/lib/
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${PYSRC}/DLLs/ ${PYTARGET}/DLLs/
-      COMMAND cd ${PYTARGET}/lib/ && for /d /r . %%d in (__pycache__) do @if exist "%%d" echo "%%d" && rd /s/q "%%d"
-    )
-    add_custom_target(Package_Python ALL DEPENDS external_python external_numpy external_python_site_packages OUTPUT ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe)
-  endif()
-endif()
--- a/build_files/build_environment/cmake/png.cmake
+++ b/build_files/build_environment/cmake/png.cmake
@@ -1,40 +1,44 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PNG_EXTRA_ARGS
-  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
-  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
-  -DPNG_STATIC=ON
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DPNG_STATIC=ON
 )

-if(BLENDER_PLATFORM_ARM)
-  set(PNG_EXTRA_ARGS ${PNG_EXTRA_ARGS} -DPNG_HARDWARE_OPTIMIZATIONS=ON -DPNG_ARM_NEON=on -DCMAKE_SYSTEM_PROCESSOR="aarch64")
-endif()
-
 ExternalProject_Add(external_png
-  URL file://${PACKAGE_DIR}/${PNG_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PNG_HASH_TYPE}=${PNG_HASH}
-  PREFIX ${BUILD_DIR}/png
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/png ${DEFAULT_CMAKE_FLAGS} ${PNG_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/png
+	URL ${PNG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${PNG_HASH}
+	PREFIX ${BUILD_DIR}/png
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/png ${DEFAULT_CMAKE_FLAGS} ${PNG_EXTRA_ARGS}
+	INSTALL_DIR	${LIBDIR}/png
 )

 add_dependencies(
-  external_png
-  external_zlib
+	external_png
+	external_zlib
 )

-if(WIN32 AND BUILD_MODE STREQUAL Release)
-  ExternalProject_Add_Step(external_png after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/png/include/ ${HARVEST_TARGET}/png/include/
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_static${LIBEXT} ${HARVEST_TARGET}/png/lib/libpng${LIBEXT}
-    DEPENDEES install
-  )
-endif()
-
-if(WIN32 AND BUILD_MODE STREQUAL Debug)
-  ExternalProject_Add_Step(external_png after_install
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_staticd${LIBEXT} ${LIBDIR}/png/lib/libpng16${LIBEXT}
-    DEPENDEES install
-  )
+if(BUILD_MODE STREQUAL Debug)
+	ExternalProject_Add_Step(external_png after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_staticd${LIBEXT} ${LIBDIR}/png/lib/libpng16${LIBEXT}
+		DEPENDEES install
+	)
 endif()
--- a/build_files/build_environment/cmake/potrace.cmake
+++ b/build_files/build_environment/cmake/potrace.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(POTRACE_EXTRA_ARGS
-)
-
-if((WIN32 AND BUILD_MODE STREQUAL Release) OR UNIX)
-  ExternalProject_Add(external_potrace
-    URL file://${PACKAGE_DIR}/${POTRACE_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${POTRACE_HASH_TYPE}=${POTRACE_HASH}
-    PREFIX ${BUILD_DIR}/potrace
-    PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_potrace.txt ${BUILD_DIR}/potrace/src/external_potrace/CMakeLists.txt
-    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/potrace ${DEFAULT_CMAKE_FLAGS} ${POTRACE_EXTRA_ARGS}
-    INSTALL_DIR ${LIBDIR}/potrace
-  )
-  if(WIN32)
-    ExternalProject_Add_Step(external_potrace after_install
-        COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/potrace ${HARVEST_TARGET}/potrace
-        DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/pthreads.cmake
+++ b/build_files/build_environment/cmake/pthreads.cmake
@@ -1,38 +1,55 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
+		set(PTHREAD_XCFLAGS /MD)

-    if(MSVC14) # vs2015 has timespec
-      set(PTHREAD_CPPFLAGS "/I. /DHAVE_CONFIG_H /D_TIMESPEC_DEFINED ")
-    else() # everything before doesn't
-      set(PTHREAD_CPPFLAGS "/I. /DHAVE_CONFIG_H ")
-    endif()
+		if(MSVC14) # vs2015 has timespec
+			set(PTHREAD_CPPFLAGS "/I. /DHAVE_PTW32_CONFIG_H /D_TIMESPEC_DEFINED ")
+		else() # everything before doesn't
+			set(PTHREAD_CPPFLAGS "/I. /DHAVE_PTW32_CONFIG_H ")
+		endif()

-    set(PTHREADS_BUILD cd ${BUILD_DIR}/pthreads/src/external_pthreads/ && cd && nmake VC-static /e CPPFLAGS=${PTHREAD_CPPFLAGS})
+		set(PTHREADS_BUILD cd ${BUILD_DIR}/pthreads/src/external_pthreads/ && cd && nmake VC /e CPPFLAGS=${PTHREAD_CPPFLAGS} /e XCFLAGS=${PTHREAD_XCFLAGS} /e XLIBS=/NODEFAULTLIB:msvcr)

-    ExternalProject_Add(external_pthreads
-      URL file://${PACKAGE_DIR}/${PTHREADS_FILE}
-      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      URL_HASH ${PTHREADS_HASH_TYPE}=${PTHREADS_HASH}
-      PREFIX ${BUILD_DIR}/pthreads
-      CONFIGURE_COMMAND echo .
-      PATCH_COMMAND COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/pthreads/src/external_pthreads < ${PATCH_DIR}/pthreads.diff
-      BUILD_COMMAND ${PTHREADS_BUILD}
-      INSTALL_COMMAND COMMAND
-        ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/libpthreadVC3${LIBEXT} ${LIBDIR}/pthreads/lib/pthreadVC3${LIBEXT} &&
-        ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthread.h ${LIBDIR}/pthreads/inc/pthread.h &&
-        ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/sched.h ${LIBDIR}/pthreads/inc/sched.h &&
-        ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/semaphore.h ${LIBDIR}/pthreads/inc/semaphore.h &&
-        ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/_ptw32.h ${LIBDIR}/pthreads/inc/_ptw32.h
-      INSTALL_DIR ${LIBDIR}/pthreads
-    )
+		ExternalProject_Add(external_pthreads
+			URL ${PTHREADS_URI}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			URL_HASH SHA512=${PTHREADS_SHA512}
+			PREFIX ${BUILD_DIR}/pthreads
+			CONFIGURE_COMMAND echo .
+			PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/pthreads/src/external_pthreads < ${PATCH_DIR}/pthreads.diff
+			BUILD_COMMAND ${PTHREADS_BUILD}
+			INSTALL_COMMAND COMMAND
+				${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthreadVC2.dll ${LIBDIR}/pthreads/lib/pthreadVC2.dll &&
+				${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthreadVC2${LIBEXT} ${LIBDIR}/pthreads/lib/pthreadVC2${LIBEXT} &&
+				${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthread.h ${LIBDIR}/pthreads/inc/pthread.h &&
+				${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/sched.h ${LIBDIR}/pthreads/inc/sched.h &&
+				${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/semaphore.h ${LIBDIR}/pthreads/inc/semaphore.h
+			INSTALL_DIR ${LIBDIR}/pthreads
+		)

-    if(BUILD_MODE STREQUAL Release)
-      ExternalProject_Add_Step(external_pthreads after_install
-        COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/inc/ ${HARVEST_TARGET}/pthreads/include/
-        COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/lib/ ${HARVEST_TARGET}/pthreads/lib
-        DEPENDEES install
-      )
-    endif()
+		if(BUILD_MODE STREQUAL Release)
+			ExternalProject_Add_Step(external_pthreads after_install
+				COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/inc/ ${HARVEST_TARGET}/pthreads/include/
+				COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/lib/ ${HARVEST_TARGET}/pthreads/lib
+				DEPENDEES install
+			)
+		endif()

 endif()
--- a/build_files/build_environment/cmake/pugixml.cmake
+++ b/build_files/build_environment/cmake/pugixml.cmake
@@ -1,27 +1,43 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PUGIXML_EXTRA_ARGS
 )

 ExternalProject_Add(external_pugixml
-  URL file://${PACKAGE_DIR}/${PUGIXML_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PUGIXML_HASH_TYPE}=${PUGIXML_HASH}
-  PREFIX ${BUILD_DIR}/pugixml
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/pugixml ${DEFAULT_CMAKE_FLAGS} ${PUGIXML_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/pugixml
+	URL ${PUGIXML_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${PUGIXML_HASH}
+	PREFIX ${BUILD_DIR}/pugixml
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/pugixml ${DEFAULT_CMAKE_FLAGS} ${PUGIXML_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/pugixml
 )
 if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_pugixml after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pugixml ${HARVEST_TARGET}/pugixml
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_pugixml after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/pugixml/lib/pugixml_d.lib
-      DEPENDEES install
-    )
-  endif()
-endif()
+	if(BUILD_MODE STREQUAL Release)
+		ExternalProject_Add_Step(external_pugixml after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/osl/lib/pugixml.lib
+			DEPENDEES install
+		)
+	endif()
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_pugixml after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/osl/lib/pugixml_d.lib
+			DEPENDEES install
+		)
+	endif()	
+endif()
--- a/build_files/build_environment/cmake/pystring.cmake
+++ b/build_files/build_environment/cmake/pystring.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(PYSTRING_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_pystring
-  URL file://${PACKAGE_DIR}/${PYSTRING_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PYSTRING_HASH_TYPE}=${PYSTRING_HASH}
-  PREFIX ${BUILD_DIR}/pystring
-  PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_pystring.txt ${BUILD_DIR}/pystring/src/external_pystring/CMakeLists.txt
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/pystring ${DEFAULT_CMAKE_FLAGS} ${PYSTRING_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/pystring
-)
-
-if(WIN32)
-  ExternalProject_Add_Step(external_pystring after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pystring/lib ${HARVEST_TARGET}/pystring/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pystring/include ${HARVEST_TARGET}/pystring/include
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/python.cmake
+++ b/build_files/build_environment/cmake/python.cmake
@@ -1,110 +1,180 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PYTHON_POSTFIX)
 if(BUILD_MODE STREQUAL Debug)
-  set(PYTHON_POSTFIX _d)
-  set(PYTHON_EXTRA_INSTLAL_FLAGS -d)
+	set(PYTHON_POSTFIX _d)
 endif()

 if(WIN32)
-  set(PYTHON_BINARY_INTERNAL ${BUILD_DIR}/python/src/external_python/PCBuild/amd64/python${PYTHON_POSTFIX}.exe)
-  set(PYTHON_BINARY ${LIBDIR}/python/python${PYTHON_POSTFIX}.exe)
-  set(PYTHON_SRC ${BUILD_DIR}/python/src/external_python/)
-  macro(cmake_to_dos_path MsysPath ResultingPath)
-    string(REPLACE "/" "\\" ${ResultingPath} "${MsysPath}")
-  endmacro()
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(SSL_POSTFIX -x64)
+	else()
+		set(SSL_POSTFIX)
+	endif()

-  set(PYTHON_EXTERNALS_FOLDER ${BUILD_DIR}/python/src/external_python/externals)
-  set(ZLIB_SOURCE_FOLDER ${BUILD_DIR}/zlib/src/external_zlib)
-  set(DOWNLOADS_EXTERNALS_FOLDER ${DOWNLOAD_DIR}/externals)
+	set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe)

-  cmake_to_dos_path(${PYTHON_EXTERNALS_FOLDER} PYTHON_EXTERNALS_FOLDER_DOS)
-  cmake_to_dos_path(${ZLIB_SOURCE_FOLDER} ZLIB_SOURCE_FOLDER_DOS)
-  cmake_to_dos_path(${DOWNLOADS_EXTERNALS_FOLDER} DOWNLOADS_EXTERNALS_FOLDER_DOS)
+	macro(cmake_to_dos_path MsysPath ResultingPath)
+		string(REPLACE "/" "\\" ${ResultingPath} "${MsysPath}")
+	endmacro()

-  ExternalProject_Add(external_python
-    URL file://${PACKAGE_DIR}/${PYTHON_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${PYTHON_HASH_TYPE}=${PYTHON_HASH}
-    PREFIX ${BUILD_DIR}/python
-    # Python will download its own deps and there's very little we can do about
-    # that beyond placing some code in their externals dir before it tries.
-    # the foldernames *HAVE* to match the ones inside pythons get_externals.cmd.
-    # python 3.10.8 still ships zlib 1.2.12, replace it with our 1.2.13
-    # copy until they update.
-    CONFIGURE_COMMAND mkdir ${PYTHON_EXTERNALS_FOLDER_DOS} &&
-      mklink /J ${PYTHON_EXTERNALS_FOLDER_DOS}\\zlib-1.2.12 ${ZLIB_SOURCE_FOLDER_DOS} &&
-      ${CMAKE_COMMAND} -E copy ${ZLIB_SOURCE_FOLDER}/../external_zlib-build/zconf.h ${PYTHON_EXTERNALS_FOLDER}/zlib-1.2.12/zconf.h
-    BUILD_COMMAND cd ${BUILD_DIR}/python/src/external_python/pcbuild/ && set IncludeTkinter=false && call build.bat -e -p x64 -c ${BUILD_MODE}
-    INSTALL_COMMAND ${PYTHON_BINARY_INTERNAL} ${PYTHON_SRC}/PC/layout/main.py -b ${PYTHON_SRC}/PCbuild/amd64 -s ${PYTHON_SRC} -t ${PYTHON_SRC}/tmp/ --include-stable --include-pip --include-dev --include-launchers  --include-venv --include-symbols ${PYTHON_EXTRA_INSTLAL_FLAGS} --copy ${LIBDIR}/python
-  )
-  add_dependencies(
-    external_python
-    external_zlib
-  )
+	set(PYTHON_EXTERNALS_FOLDER ${BUILD_DIR}/python/src/external_python/externals)
+	set(DOWNLOADS_EXTERNALS_FOLDER ${DOWNLOAD_DIR}/externals)
+
+	cmake_to_dos_path(${PYTHON_EXTERNALS_FOLDER} PYTHON_EXTERNALS_FOLDER_DOS)
+	cmake_to_dos_path(${DOWNLOADS_EXTERNALS_FOLDER} DOWNLOADS_EXTERNALS_FOLDER_DOS)
+
+	message("Python externals = ${PYTHON_EXTERNALS_FOLDER}")
+	message("Python externals_dos = ${PYTHON_EXTERNALS_FOLDER_DOS}")
+	message("Python DOWNLOADS_EXTERNALS_FOLDER = ${DOWNLOADS_EXTERNALS_FOLDER}")
+	message("Python DOWNLOADS_EXTERNALS_FOLDER_DOS = ${DOWNLOADS_EXTERNALS_FOLDER_DOS}")
+
+	ExternalProject_Add(external_python
+		URL ${PYTHON_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${PYTHON_HASH}
+		PREFIX ${BUILD_DIR}/python
+		PATCH_COMMAND
+			echo mklink /D "${PYTHON_EXTERNALS_FOLDER_DOS}" "${DOWNLOADS_EXTERNALS_FOLDER_DOS}" &&
+			mklink /D "${PYTHON_EXTERNALS_FOLDER_DOS}" "${DOWNLOADS_EXTERNALS_FOLDER_DOS}"
+		CONFIGURE_COMMAND ""
+		BUILD_COMMAND cd ${BUILD_DIR}/python/src/external_python/pcbuild/ && set IncludeTkinter=false && call build.bat -e -p ${PYTHON_ARCH} -c ${BUILD_MODE}
+		INSTALL_COMMAND COMMAND
+			${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll &&
+			${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.pdb ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.pdb &&
+			${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib &&
+			${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.exp ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.exp &&
+			${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/include ${LIBDIR}/python/include/Python${PYTHON_SHORT_VERSION} &&
+			${CMAKE_COMMAND} -E copy "${BUILD_DIR}/python/src/external_python/PC/pyconfig.h" ${LIBDIR}/python/include/Python${PYTHON_SHORT_VERSION}/pyconfig.h
+	)
+	message("PythinRedist = ${BUILD_DIR}/python/src/external_python/redist")
+	message("POutput = ${PYTHON_OUTPUTDIR}")
 else()
-  if(APPLE)
-    # Disable functions that can be in 10.13 sdk but aren't available on 10.9 target.
-    #
-    # Disable libintl (gettext library) as it might come from Homebrew, which makes
-    # it so test program compiles, but the Python does not. This is because for Python
-    # we use isysroot, which seems to forbid using libintl.h.
-    # The gettext functionality seems to come from CoreFoundation, so should be all fine.
-    set(PYTHON_FUNC_CONFIGS
-      export ac_cv_func_futimens=no &&
-      export ac_cv_func_utimensat=no &&
-      export ac_cv_func_basename_r=no &&
-      export ac_cv_func_clock_getres=no &&
-      export ac_cv_func_clock_gettime=no &&
-      export ac_cv_func_clock_settime=no &&
-      export ac_cv_func_dirname_r=no &&
-      export ac_cv_func_getentropy=no &&
-      export ac_cv_func_mkostemp=no &&
-      export ac_cv_func_mkostemps=no &&
-      export ac_cv_func_timingsafe_bcmp=no &&
-      export ac_cv_header_libintl_h=no &&
-      export ac_cv_lib_intl_textdomain=no
-    )
-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-      set(PYTHON_FUNC_CONFIGS ${PYTHON_FUNC_CONFIGS} && export PYTHON_DECIMAL_WITH_MACHINE=ansi64)
-    endif()
-    set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV} && ${PYTHON_FUNC_CONFIGS})
-    set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python.exe)
-  else()
-    set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV})
-    set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python)
-  endif()
-  # Link against zlib statically (Unix). Avoid rpath issues (macOS).
-  set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_unix.diff)
-  set(PYTHON_CONFIGURE_EXTRA_ARGS "--with-openssl=${LIBDIR}/ssl")
-  set(PYTHON_CFLAGS "-I${LIBDIR}/sqlite/include -I${LIBDIR}/bzip2/include -I${LIBDIR}/lzma/include -I${LIBDIR}/zlib/include ${PLATFORM_CFLAGS}")
-  set(PYTHON_LDFLAGS "-L${LIBDIR}/ffi/lib -L${LIBDIR}/sqlite/lib -L${LIBDIR}/bzip2/lib -L${LIBDIR}/lzma/lib -L${LIBDIR}/zlib/lib ${PLATFORM_LDFLAGS}")
-  set(PYTHON_CONFIGURE_EXTRA_ENV
-    export CFLAGS=${PYTHON_CFLAGS} &&
-    export CPPFLAGS=${PYTHON_CFLAGS} &&
-    export LDFLAGS=${PYTHON_LDFLAGS} &&
-    export PKG_CONFIG_PATH=${LIBDIR}/ffi/lib/pkgconfig)
+	if(APPLE)
+		# disable functions that can be in 10.13 sdk but aren't available on 10.9 target
+		set(PYTHON_FUNC_CONFIGS
+		  export ac_cv_func_futimens=no &&
+		  export ac_cv_func_utimensat=no &&
+		  export ac_cv_func_basename_r=no &&
+		  export ac_cv_func_clock_getres=no &&
+		  export ac_cv_func_clock_gettime=no &&
+		  export ac_cv_func_clock_settime=no &&
+		  export ac_cv_func_dirname_r=no &&
+		  export ac_cv_func_getentropy=no &&
+		  export ac_cv_func_mkostemp=no &&
+		  export ac_cv_func_mkostemps=no &&
+		  export ac_cv_func_timingsafe_bcmp=no)
+		set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV} && ${PYTHON_FUNC_CONFIGS})
+		set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python.exe)
+	else()
+		set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV})
+		set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python)
+	endif()

-  ExternalProject_Add(external_python
-    URL file://${PACKAGE_DIR}/${PYTHON_FILE}
-    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${PYTHON_HASH_TYPE}=${PYTHON_HASH}
-    PREFIX ${BUILD_DIR}/python
-    PATCH_COMMAND ${PYTHON_PATCH}
-    CONFIGURE_COMMAND ${PYTHON_CONFIGURE_ENV} && ${PYTHON_CONFIGURE_EXTRA_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/python ${PYTHON_CONFIGURE_EXTRA_ARGS}
-    BUILD_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make -j${MAKE_THREADS}
-    INSTALL_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make install
-    INSTALL_DIR ${LIBDIR}/python)
+	set(PYTHON_CONFIGURE_EXTRA_ARGS "--with-openssl=${LIBDIR}/ssl")
+	set(PYTHON_CFLAGS "-I${LIBDIR}/sqlite/include -I${LIBDIR}/bzip2/include -I${LIBDIR}/lzma/include -I${LIBDIR}/zlib/include")
+	set(PYTHON_LDFLAGS "-L${LIBDIR}/ffi/lib -L${LIBDIR}/sqlite/lib -L${LIBDIR}/bzip2/lib -L${LIBDIR}/lzma/lib -L${LIBDIR}/zlib/lib")
+	set(PYTHON_CONFIGURE_EXTRA_ENV
+		export CFLAGS=${PYTHON_CFLAGS} &&
+		export CPPFLAGS=${PYTHON_CFLAGS} &&
+		export LDFLAGS=${PYTHON_LDFLAGS} &&
+		export PKG_CONFIG_PATH=${LIBDIR}/ffi/lib/pkgconfig)
+	set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_linux.diff)
+
+	ExternalProject_Add(external_python
+		URL ${PYTHON_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${PYTHON_HASH}
+		PREFIX ${BUILD_DIR}/python
+		PATCH_COMMAND ${PYTHON_PATCH}
+		CONFIGURE_COMMAND ${PYTHON_CONFIGURE_ENV} && ${PYTHON_CONFIGURE_EXTRA_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/python ${PYTHON_CONFIGURE_EXTRA_ARGS}
+		BUILD_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make -j${MAKE_THREADS}
+		INSTALL_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make install
+		INSTALL_DIR ${LIBDIR}/python)
+
+	add_custom_target(Make_Python_Environment ALL DEPENDS external_python)
+endif()
+
+if(MSVC)
+	add_custom_command(
+		OUTPUT ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz
+		OUTPUT ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/lib ${BUILD_DIR}/python/src/external_python/redist/lib
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_asyncio${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_asyncio${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_bz2${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_bz2${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_contextvars${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_contextvars${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ctypes${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ctypes${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ctypes_test${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ctypes_test${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_decimal${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_decimal${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_distutils_findvs${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_distutils_findvs${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_elementtree${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_elementtree${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_hashlib${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_hashlib${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_lzma${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_lzma${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_msi${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_msi${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_multiprocessing${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_multiprocessing${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_overlapped${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_overlapped${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_queue${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_queue${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_socket${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_socket${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_sqlite3${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_sqlite3${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ssl${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ssl${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testbuffer${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testbuffer${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testcapi${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testcapi${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testimportmultiple${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testimportmultiple${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testmultiphase${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testmultiphase${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/pyexpat${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/pyexpat${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_POSTFIX}.exe" ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/select${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/select${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/unicodedata${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/unicodedata${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/winsound${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/winsound${PYTHON_POSTFIX}.pyd
+		#xxlimited is an example extension module, we don't need to ship it and debug doesn't build it
+		#leaving it commented out, so I won't get confused again with the next update.
+		#COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/xxlimited${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/xxlimited${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/libssl-1_1${SSL_POSTFIX}.dll" ${BUILD_DIR}/python/src/external_python/redist/lib/libssl-1_1${SSL_POSTFIX}.dll
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/libcrypto-1_1${SSL_POSTFIX}.dll" ${BUILD_DIR}/python/src/external_python/redist/lib/libcrypto-1_1${SSL_POSTFIX}.dll
+		COMMAND ${CMAKE_COMMAND} -E chdir "${BUILD_DIR}/python/src/external_python/redist" ${CMAKE_COMMAND} -E tar "cfvz" "${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz" "."
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/python/ ${HARVEST_TARGET}/python/
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz
+	)
+
+	add_custom_target(Package_Python ALL DEPENDS external_python ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe)
+
+	add_custom_command(OUTPUT ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/redist ${BUILD_DIR}/python/src/external_python/run
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/include ${BUILD_DIR}/python/src/external_python/run/include
+		COMMAND	${CMAKE_COMMAND} -E copy "${BUILD_DIR}/python/src/external_python/PC/pyconfig.h" ${BUILD_DIR}/python/src/external_python/run/include/pyconfig.h
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll" ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib" ${BUILD_DIR}/python/src/external_python/run/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.lib  #missing postfix on purpose, distutils is not expecting it
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib" ${BUILD_DIR}/python/src/external_python/run/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib  #other things like numpy still want it though.
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_POSTFIX}.exe" ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe
+		COMMAND	${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe -m ensurepip --upgrade
+	)
+	add_custom_target(Make_Python_Environment ALL DEPENDS ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe Package_Python)
 endif()

 if(UNIX)
-  add_dependencies(
-    external_python
-    external_bzip2
-    external_ffi
-    external_lzma
-    external_ssl
-    external_sqlite
-    external_zlib
-  )
+	add_dependencies(
+		external_python
+		external_bzip2
+		external_ffi
+		external_lzma
+		external_ssl
+		external_sqlite
+		external_zlib
+	)
 endif()
--- a/build_files/build_environment/cmake/python_site_packages.cmake
+++ b/build_files/build_environment/cmake/python_site_packages.cmake
@@ -1,33 +1,41 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(WIN32 AND BUILD_MODE STREQUAL Debug)
-  set(SITE_PACKAGES_EXTRA --global-option build --global-option --debug)
-  # zstandard is determined to build and link release mode libs in a debug
-  # configuration, the only way to make it happy is to bend to its will
-  # and give it a library to link with.
-  set(PIP_CONFIGURE_COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/python/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}_d.lib ${LIBDIR}/python/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.lib)
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+if(WIN32)
+	set(HARVEST_CMD cmd /C FOR /d /r ${BUILD_DIR}/python/src/external_python/run/lib/site-packages %d IN (__pycache__) DO @IF EXIST "%d" rd /s /q "%d" &&
+		${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/idna ${HARVEST_TARGET}/Release/site-packages/idna &&
+		${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/chardet ${HARVEST_TARGET}/Release/site-packages/chardet &&
+		${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/urllib3 ${HARVEST_TARGET}/Release/site-packages/urllib3 &&
+		${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/certifi ${HARVEST_TARGET}/Release/site-packages/certifi &&
+		${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/requests ${HARVEST_TARGET}/Release/site-packages/requests
+	)
 else()
-  set(PIP_CONFIGURE_COMMAND echo ".")
+	set(HARVEST_CMD echo .)
 endif()

 ExternalProject_Add(external_python_site_packages
-  DOWNLOAD_COMMAND ""
-  CONFIGURE_COMMAND ${PIP_CONFIGURE_COMMAND}
-  BUILD_COMMAND ""
-  PREFIX ${BUILD_DIR}/site_packages
-  INSTALL_COMMAND ${PYTHON_BINARY} -m pip install --no-cache-dir ${SITE_PACKAGES_EXTRA} cython==${CYTHON_VERSION} idna==${IDNA_VERSION} charset-normalizer==${CHARSET_NORMALIZER_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} zstandard==${ZSTANDARD_VERSION} autopep8==${AUTOPEP8_VERSION} pycodestyle==${PYCODESTYLE_VERSION} toml==${TOML_VERSION} --no-binary :all:
+	DOWNLOAD_COMMAND ""
+	CONFIGURE_COMMAND ""
+	BUILD_COMMAND ""
+	PREFIX ${BUILD_DIR}/site_packages
+	INSTALL_COMMAND ${PYTHON_BINARY} -m pip install idna==${IDNA_VERSION} chardet==${CHARDET_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} --no-binary :all: && ${HARVEST_CMD}
 )

-if(USE_PIP_NUMPY)
-  # Use only wheel (and not build from source) to stop NumPy from linking against buggy
-  # Accelerate framework backend on macOS. Official wheels are built with OpenBLAS.
-  ExternalProject_Add_Step(external_python_site_packages after_install
-    COMMAND ${PYTHON_BINARY} -m pip install --no-cache-dir numpy==${NUMPY_VERSION} --only-binary :all:
-    DEPENDEES install
-  )
-endif()
-
 add_dependencies(
-  external_python_site_packages
-  external_python
+	external_python_site_packages
+	Make_Python_Environment
 )
--- a/build_files/build_environment/cmake/robinmap.cmake
+++ b/build_files/build_environment/cmake/robinmap.cmake
@@ -1,13 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(ROBINMAP_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_robinmap
-  URL file://${PACKAGE_DIR}/${ROBINMAP_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ROBINMAP_HASH_TYPE}=${ROBINMAP_HASH}
-  PREFIX ${BUILD_DIR}/robinmap
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/robinmap ${DEFAULT_CMAKE_FLAGS} ${ROBINMAP_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/robinmap
-)
--- a/build_files/build_environment/cmake/sdl.cmake
+++ b/build_files/build_environment/cmake/sdl.cmake
@@ -1,33 +1,48 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
-  set(SDL_EXTRA_ARGS
-    -DSDL_STATIC=Off
-  )
+	set(SDL_EXTRA_ARGS
+		-DSDL_STATIC=Off
+	)
 else()
-  set(SDL_EXTRA_ARGS
-    -DSDL_STATIC=ON
-    -DSDL_SHARED=OFF
-    -DSDL_VIDEO=OFF
-    -DSNDIO=OFF
-  )
+	set(SDL_EXTRA_ARGS
+		-DSDL_STATIC=ON
+		-DSDL_SHARED=OFF
+		-DSDL_VIDEO=OFF
+	)
 endif()

 ExternalProject_Add(external_sdl
-  URL file://${PACKAGE_DIR}/${SDL_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SDL_HASH_TYPE}=${SDL_HASH}
-  PREFIX ${BUILD_DIR}/sdl
-  PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/sdl/src/external_sdl < ${PATCH_DIR}/sdl.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/sdl ${DEFAULT_CMAKE_FLAGS} ${SDL_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/sdl
+	URL ${SDL_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SDL_HASH}
+	PREFIX ${BUILD_DIR}/sdl
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/sdl/src/external_sdl < ${PATCH_DIR}/sdl.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/sdl ${DEFAULT_CMAKE_FLAGS} ${SDL_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/sdl
 )

 if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_sdl after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/include/sdl2 ${HARVEST_TARGET}/sdl/include
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/lib ${HARVEST_TARGET}/sdl/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/bin ${HARVEST_TARGET}/sdl/lib
-    DEPENDEES install
-  )
+	ExternalProject_Add_Step(external_sdl after_install
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/include/sdl2 ${HARVEST_TARGET}/sdl/include
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/lib ${HARVEST_TARGET}/sdl/lib
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/bin ${HARVEST_TARGET}/sdl/lib
+		DEPENDEES install
+	)
 endif()
--- a/build_files/build_environment/cmake/setup_mingw32.cmake
+++ b/build_files/build_environment/cmake/setup_mingw32.cmake
@@ -0,0 +1,227 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+####################################################################################################################
+# Mingw32 Builds
+####################################################################################################################
+# This installs mingw32+msys to compile ffmpeg/iconv/libsndfile/lapack/fftw3
+####################################################################################################################
+
+message("LIBDIR = ${LIBDIR}")
+macro(cmake_to_msys_path MsysPath ResultingPath)
+	string(REPLACE ":" "" TmpPath "${MsysPath}")
+	string(SUBSTRING ${TmpPath} 0 1 Drive)
+	string(SUBSTRING ${TmpPath} 1 255 PathPart)
+	string(TOLOWER ${Drive} LowerDrive)
+	string(CONCAT ${ResultingPath} "/" ${LowerDrive} ${PathPart})
+endmacro()
+cmake_to_msys_path(${LIBDIR} mingw_LIBDIR)
+message("mingw_LIBDIR = ${mingw_LIBDIR}")
+
+message("Checking for mingw32")
+# download mingw32
+if(NOT EXISTS "${DOWNLOAD_DIR}/i686-4.9.4-release-win32-sjlj-rt_v5-rev0.7z")
+	message("Downloading mingw32")
+	file(DOWNLOAD "https://astuteinternet.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/4.9.4/threads-win32/sjlj/i686-4.9.4-release-win32-sjlj-rt_v5-rev0.7z" "${DOWNLOAD_DIR}/i686-4.9.4-release-win32-sjlj-rt_v5-rev0.7z")
+endif()
+
+# make mingw root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/mingw
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract mingw32
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/ming32sh.cmd") AND (EXISTS "${DOWNLOAD_DIR}/i686-4.9.4-release-win32-sjlj-rt_v5-rev0.7z"))
+	message("Extracting mingw32")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/i686-4.9.4-release-win32-sjlj-rt_v5-rev0.7z
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw
+	)
+endif()
+
+message("Checking for pkg-config")
+if(NOT EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+	message("Downloading pkg-config")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/pkgconfiglite/0.28-1/pkg-config-lite-0.28-1_bin-win32.zip" "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+endif()
+
+# extract pkgconfig
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/pkg-config.exe") AND (EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"))
+	message("Extracting pkg-config")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1/bin/pkg-config.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/pkg-config.exe"
+	)
+
+endif()
+
+message("Checking for nasm")
+if(NOT EXISTS "${DOWNLOAD_DIR}/nasm-2.13.02-win32.zip")
+	message("Downloading nasm")
+	file(DOWNLOAD "http://www.nasm.us/pub/nasm/releasebuilds/2.13.02/win32/nasm-2.13.02-win32.zip" "${DOWNLOAD_DIR}/nasm-2.13.02-win32.zip")
+endif()
+
+# extract nasm
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/nasm.exe") AND (EXISTS "${DOWNLOAD_DIR}/nasm-2.13.02-win32.zip"))
+	message("Extracting nasm")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/nasm-2.13.02-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/nasm-2.13.02/nasm.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/nasm.exe"
+	)
+
+endif()
+SET(NASM_PATH ${DOWNLOAD_DIR}/mingw/mingw32/bin/nasm.exe)
+message("Checking for mingwGet")
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+	message("Downloading mingw-get")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/Installer/mingw-get/mingw-get-0.6.2-beta-20131004-1/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip" "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+endif()
+
+# extract mingw_get
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get.exe") AND (EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"))
+	message("Extracting mingw-get")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw/mingw32/
+	)
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/make.exe"))
+	message("Installing MSYS")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get install msys msys-patch
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw32/bin/
+	)
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/mktemp.exe"))
+	message("Installing mktemp")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get install msys msys-mktemp
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw32/bin/
+	)
+endif()
+
+
+message("Checking for CoreUtils")
+# download old core_utils for pr.exe (ffmpeg needs it to build)
+if(NOT EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+	message("Downloading CoreUtils 5.97")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/MSYS/Base/msys-core/_obsolete/coreutils-5.97-MSYS-1.0.11-2/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2" "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/pr.exe"))
+	message("Installing pr from CoreUtils 5.97")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/tmp_coreutils
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${DOWNLOAD_DIR}/tmp_coreutils/coreutils-5.97/bin/pr.exe "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/pr.exe"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+endif()
+
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/ming32sh.cmd")
+	message("Installing ming32sh.cmd")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/ming32sh.cmd  ${DOWNLOAD_DIR}/mingw/mingw32/ming32sh.cmd
+	)
+endif()
+
+message("Checking for perl")
+# download perl for libvpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip")
+	message("Downloading perl")
+	file(DOWNLOAD "http://strawberryperl.com/download/5.22.1.3/strawberry-perl-5.22.1.3-32bit-portable.zip" "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip")
+endif()
+
+# make perl root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/perl32")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/perl32
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract perl
+if((NOT EXISTS "${DOWNLOAD_DIR}/perl32/portable.perl") AND (EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip"))
+	message("Extracting perl")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/perl32
+	)
+endif()
+
+# get yasm for vpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/yasm.exe")
+	message("Downloading yasm")
+	file(DOWNLOAD "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0-win32.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/yasm.exe")
+endif()
+
+message("checking i686-w64-mingw32-strings")
+# copy strings.exe to i686-w64-mingw32-strings for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strings.exe")
+	message("fixing i686-w64-mingw32-strings.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/strings.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strings.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-ar.exe")
+# copy ar.exe to i686-w64-mingw32-ar.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ar.exe")
+	message("fixing i686-w64-mingw32-ar.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/ar.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ar.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-strip.exe")
+# copy strip.exe to i686-w64-mingw32-strip.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strip.exe")
+	message("fixing i686-w64-mingw32-strip.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/strip.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strip.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-ranlib.exe")
+# copy ranlib.exe to i686-w64-mingw32-ranlib.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ranlib.exe")
+	message("fixing i686-w64-mingw32-ranlib.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/ranlib.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ranlib.exe"
+	)
+endif()
--- a/build_files/build_environment/cmake/setup_mingw64.cmake
+++ b/build_files/build_environment/cmake/setup_mingw64.cmake
@@ -1,18 +1,34 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

-##################################################################################################
+####################################################################################################################
 # Mingw64 Builds
-##################################################################################################
-# This installs mingw64+msys to compile ffmpeg/iconv/libsndfile/fftw3
-##################################################################################################
+####################################################################################################################
+# This installs mingw64+msys to compile ffmpeg/iconv/libsndfile/lapack/fftw3
+####################################################################################################################

 message("LIBDIR = ${LIBDIR}")
 macro(cmake_to_msys_path MsysPath ResultingPath)
-  string(REPLACE ":" "" TmpPath "${MsysPath}")
-  string(SUBSTRING ${TmpPath} 0 1 Drive)
-  string(SUBSTRING ${TmpPath} 1 255 PathPart)
-  string(TOLOWER ${Drive} LowerDrive)
-  string(CONCAT ${ResultingPath} "/" ${LowerDrive} ${PathPart})
+	string(REPLACE ":" "" TmpPath "${MsysPath}")
+	string(SUBSTRING ${TmpPath} 0 1 Drive)
+	string(SUBSTRING ${TmpPath} 1 255 PathPart)
+	string(TOLOWER ${Drive} LowerDrive)
+	string(CONCAT ${ResultingPath} "/" ${LowerDrive} ${PathPart})
 endmacro()
 cmake_to_msys_path(${LIBDIR} mingw_LIBDIR)
 message("mingw_LIBDIR = ${mingw_LIBDIR}")
@@ -20,200 +36,192 @@ message("mingw_LIBDIR = ${mingw_LIBDIR}")
 message("Checking for mingw64")
 # download ming64
 if(NOT EXISTS "${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z")
-  message("Downloading mingw64")
-  file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.4/threads-win32/seh/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z" "${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z")
+	message("Downloading mingw64")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.4/threads-win32/seh/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z" "${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z")
 endif()

 # make mingw root directory
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/mingw
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}
-  )
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/mingw
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
 endif()

 # extract mingw64
 if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd") AND (EXISTS "${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z"))
-  message("Extracting mingw64")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw
-  )
+	message("Extracting mingw64")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/x86_64-4.9.4-release-win32-seh-rt_v5-rev0.7z
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw
+	)
 endif()

 message("Checking for pkg-config")
 if(NOT EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
-  message("Downloading pkg-config")
-  file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/pkgconfiglite/0.28-1/pkg-config-lite-0.28-1_bin-win32.zip" "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+	message("Downloading pkg-config")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/pkgconfiglite/0.28-1/pkg-config-lite-0.28-1_bin-win32.zip" "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
 endif()

 # extract pkgconfig
 if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/pkg-config.exe") AND (EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"))
-  message("Extracting pkg-config")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/
-  )
+	message("Extracting pkg-config")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)

-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1/bin/pkg-config.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/pkg-config.exe"
-  )
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1/bin/pkg-config.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/pkg-config.exe"
+	)

 endif()

 message("Checking for nasm")
 if(NOT EXISTS "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip")
-  message("Downloading nasm")
-  file(DOWNLOAD "http://www.nasm.us/pub/nasm/releasebuilds/2.13.02/win64/nasm-2.13.02-win64.zip" "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip")
+	message("Downloading nasm")
+	file(DOWNLOAD "http://www.nasm.us/pub/nasm/releasebuilds/2.13.02/win64/nasm-2.13.02-win64.zip" "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip")
 endif()

 # extract nasm
 if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe") AND (EXISTS "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip"))
-  message("Extracting nasm")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip"
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/
-  )
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/nasm-2.13.02/nasm.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe"
-  )
+	message("Extracting nasm")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/nasm-2.13.02-win64.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/nasm-2.13.02/nasm.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe"
+	)

 endif()
 SET(NASM_PATH ${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe)

 message("Checking for mingwGet")
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
-  message("Downloading mingw-get")
-  file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/Installer/mingw-get/mingw-get-0.6.2-beta-20131004-1/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip" "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+	message("Downloading mingw-get")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/Installer/mingw-get/mingw-get-0.6.2-beta-20131004-1/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip" "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
 endif()

 # extract mingw_get
 if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"))
-  message("Extracting mingw-get")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw/mingw64/
-  )
+	message("Extracting mingw-get")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw/mingw64/
+	)
 endif()

 if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/make.exe"))
-  message("Installing MSYS")
-  execute_process(
-    COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-patch
-    WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
-  )
+	message("Installing MSYS")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-patch
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
+	)
 endif()

 if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/mktemp.exe"))
-  message("Installing mktemp")
-  execute_process(
-    COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-mktemp
-    WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
-  )
-endif()
-
-if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/m4.exe"))
-  message("Installing m4")
-  execute_process(
-    COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-m4
-    WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
-  )
+	message("Installing mktemp")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-mktemp
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
+	)
 endif()

 message("Checking for CoreUtils")
 # download old core_utils for pr.exe (ffmpeg needs it to build)
 if(NOT EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
-  message("Downloading CoreUtils 5.97")
-  file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/MSYS/Base/msys-core/_obsolete/coreutils-5.97-MSYS-1.0.11-2/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2" "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+	message("Downloading CoreUtils 5.97")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/MSYS/Base/msys-core/_obsolete/coreutils-5.97-MSYS-1.0.11-2/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2" "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
 endif()

 if((EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/pr.exe"))
-  message("Installing pr from CoreUtils 5.97")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/tmp_coreutils
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}
-  )
+	message("Installing pr from CoreUtils 5.97")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/tmp_coreutils
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)

-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
-  )
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)

-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy ${DOWNLOAD_DIR}/tmp_coreutils/coreutils-5.97/bin/pr.exe "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/pr.exe"
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
-  )
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${DOWNLOAD_DIR}/tmp_coreutils/coreutils-5.97/bin/pr.exe "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/pr.exe"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
 endif()

 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd")
-  message("Installing ming64sh.cmd")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/ming64sh.cmd  ${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd
-  )
+	message("Installing ming64sh.cmd")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/ming64sh.cmd  ${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd
+	)
 endif()

 message("Checking for perl")
 # download perl for libvpx
 if(NOT EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip")
-  message("Downloading perl")
-  file(DOWNLOAD "http://strawberryperl.com/download/5.22.1.3/strawberry-perl-5.22.1.3-64bit-portable.zip" "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip")
+	message("Downloading perl")
+	file(DOWNLOAD "http://strawberryperl.com/download/5.22.1.3/strawberry-perl-5.22.1.3-64bit-portable.zip" "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip")
 endif()

 # make perl root directory
 if(NOT EXISTS "${DOWNLOAD_DIR}/perl")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/perl
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}
-  )
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/perl
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
 endif()

 # extract perl
 if((NOT EXISTS "${DOWNLOAD_DIR}/perl/portable.perl") AND (EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip"))
-  message("Extracting perl")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip
-    WORKING_DIRECTORY ${DOWNLOAD_DIR}/perl
-  )
+	message("Extracting perl")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/perl
+	)
 endif()

 # get yasm for vpx
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/yasm.exe")
-  message("Downloading yasm")
-  file(DOWNLOAD "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0-win64.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/yasm.exe")
+	message("Downloading yasm")
+	file(DOWNLOAD "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0-win64.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/yasm.exe")
 endif()

 message("checking x86_64-w64-mingw32-strings.exe")
 # copy strings.exe to x86_64-w64-mingw32-strings.exe for x264
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strings.exe")
-  message("fixing x86_64-w64-mingw32-strings.exe")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strings.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strings.exe"
-  )
+	message("fixing x86_64-w64-mingw32-strings.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strings.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strings.exe"
+	)
 endif()

 message("checking x86_64-w64-mingw32-ar.exe")
 # copy ar.exe to x86_64-w64-mingw32-ar.exe for x264
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ar.exe")
-  message("fixing x86_64-w64-mingw32-ar.exe")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ar.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ar.exe"
-  )
+	message("fixing x86_64-w64-mingw32-ar.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ar.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ar.exe"
+	)
 endif()

 message("checking x86_64-w64-mingw32-strip.exe")
 # copy strip.exe to x86_64-w64-mingw32-strip.exe for x264
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strip.exe")
-  message("fixing x86_64-w64-mingw32-strip.exe")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strip.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strip.exe"
-  )
+	message("fixing x86_64-w64-mingw32-strip.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strip.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strip.exe"
+	)
 endif()

 message("checking x86_64-w64-mingw32-ranlib.exe")
 # copy ranlib.exe to x86_64-w64-mingw32-ranlib.exe for x264
 if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ranlib.exe")
-  message("fixing x86_64-w64-mingw32-ranlib.exe")
-  execute_process(
-    COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ranlib.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ranlib.exe"
-  )
+	message("fixing x86_64-w64-mingw32-ranlib.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ranlib.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ranlib.exe"
+	)
 endif()
--- a/build_files/build_environment/cmake/sndfile.cmake
+++ b/build_files/build_environment/cmake/sndfile.cmake
@@ -1,50 +1,62 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SNDFILE_EXTRA_ARGS)
 set(SNDFILE_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR}/vorbis/lib/pkgconfig:${mingw_LIBDIR}/flac/lib/pkgconfig:${mingw_LIBDIR})

 if(WIN32)
-  set(SNDFILE_ENV set ${SNDFILE_ENV} &&)
-  # Shared for windows because static libs will drag in a libgcc dependency.
-  set(SNDFILE_OPTIONS --disable-static --enable-shared )
+	set(SNDFILE_ENV set ${SNDFILE_ENV} &&)
+	#shared for windows because static libs will drag in a libgcc dependency.
+	set(SNDFILE_OPTIONS --disable-static --enable-shared )
 else()
-  set(SNDFILE_OPTIONS --enable-static --disable-shared )
+	set(SNDFILE_OPTIONS --enable-static --disable-shared )
+endif()
+
+if(UNIX)
+	set(SNDFILE_PATCH_CMD ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/sndfile/src/external_sndfile < ${PATCH_DIR}/sndfile.diff)
+else()
+	set(SNDFILE_PATCH_CMD)
 endif()

 ExternalProject_Add(external_sndfile
-  URL file://${PACKAGE_DIR}/${SNDFILE_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SNDFILE_HASH_TYPE}=${SNDFILE_HASH}
-  PREFIX ${BUILD_DIR}/sndfile
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && ${SNDFILE_ENV} ${CONFIGURE_COMMAND} ${SNDFILE_OPTIONS} --prefix=${mingw_LIBDIR}/sndfile
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make install
-  INSTALL_DIR ${LIBDIR}/sndfile
+	URL ${SNDFILE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SNDFILE_HASH}
+	PREFIX ${BUILD_DIR}/sndfile
+	PATCH_COMMAND ${SNDFILE_PATCH_CMD}
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && ${SNDFILE_ENV} ${CONFIGURE_COMMAND} ${SNDFILE_OPTIONS} --prefix=${mingw_LIBDIR}/sndfile
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make install
+	INSTALL_DIR ${LIBDIR}/sndfile
 )

 if(MSVC)
-  set_target_properties(external_sndfile PROPERTIES FOLDER Mingw)
+	set_target_properties(external_sndfile PROPERTIES FOLDER Mingw)
 endif()

 add_dependencies(
-  external_sndfile
-  external_ogg
-  external_vorbis
+	external_sndfile
+	external_ogg
+	external_vorbis
 )
 if(UNIX)
-  add_dependencies(
-    external_sndfile
-    external_flac
-  )
-endif()
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_sndfile after_install
-      COMMAND  lib /def:${BUILD_DIR}/sndfile/src/external_sndfile/src/libsndfile-1.def /machine:x64 /out:${BUILD_DIR}/sndfile/src/external_sndfile/src/libsndfile-1.lib
-      COMMAND  ${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/bin/libsndfile-1.dll ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.dll
-      COMMAND  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/sndfile/src/external_sndfile/src/libsndfile-1.lib ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.lib
-      COMMAND  ${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/include/sndfile.h ${HARVEST_TARGET}/sndfile/include/sndfile.h
-
-    DEPENDEES install
-  )
+	add_dependencies(
+		external_sndfile
+		external_flac
+	)
 endif()
--- a/build_files/build_environment/cmake/spnav.cmake
+++ b/build_files/build_environment/cmake/spnav.cmake
@@ -1,12 +1,28 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_spnav
-  URL file://${PACKAGE_DIR}/${SPNAV_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SPNAV_HASH_TYPE}=${SPNAV_HASH}
-  PREFIX ${BUILD_DIR}/spnav
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/spnav --disable-shared --enable-static --with-pic
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make install
-  INSTALL_DIR ${LIBDIR}/spnav
+	URL ${SPNAV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SPNAV_HASH}
+	PREFIX ${BUILD_DIR}/spnav
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/spnav --disable-shared --enable-static --with-pic
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make install
+	INSTALL_DIR ${LIBDIR}/spnav
 )
--- a/build_files/build_environment/cmake/sqlite.cmake
+++ b/build_files/build_environment/cmake/sqlite.cmake
@@ -1,55 +1,57 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SQLITE_CONFIGURE_ENV echo .)
 set(SQLITE_CONFIGURATION_ARGS)

-if(UNIX)
-  if(NOT APPLE)
-    set(SQLITE_LDFLAGS -Wl,--as-needed)
-  endif()
-  set(SQLITE_CFLAGS
-    "-DSQLITE_SECURE_DELETE -DSQLITE_ENABLE_COLUMN_METADATA \
-    -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS \
-    -DSQLITE_ENABLE_RTREE=1 -DSQLITE_SOUNDEX=1 \
-    -DSQLITE_ENABLE_UNLOCK_NOTIFY \
-    -DSQLITE_OMIT_LOOKASIDE=1 -DSQLITE_ENABLE_DBSTAT_VTAB \
-    -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1 \
-    -DSQLITE_ENABLE_LOAD_EXTENSION \
-    -DSQLITE_ENABLE_JSON1 \
-    -DSQLITE_LIKE_DOESNT_MATCH_BLOBS \
-    -DSQLITE_THREADSAFE=1 \
-    -DSQLITE_ENABLE_FTS3_TOKENIZER=1 \
-    -DSQLITE_MAX_SCHEMA_RETRY=25 \
-    -DSQLITE_ENABLE_PREUPDATE_HOOK \
-    -DSQLITE_ENABLE_SESSION \
-    -DSQLITE_ENABLE_STMTVTAB \
-    -DSQLITE_MAX_VARIABLE_NUMBER=250000 \
-    -fPIC")
-  set(SQLITE_CONFIGURE_ENV ${SQLITE_CONFIGURE_ENV} && export LDFLAGS=${SQLITE_LDFLAGS} && export CFLAGS=${SQLITE_CFLAGS})
-  set(SQLITE_CONFIGURATION_ARGS
-    ${SQLITE_CONFIGURATION_ARGS}
-    --enable-threadsafe
-    --enable-load-extension
-    --enable-json1
-    --enable-fts4
-    --enable-fts5
-    # While building `tcl` is harmless, it causes problems when the install step
-    # tries to copy the files into the system path.
-    # Since this isn't required by Python or Blender this can be disabled.
-    # Note that Debian (for example), splits this off into a separate package,
-    # so it's safe to turn off.
-    --disable-tcl
-    --enable-shared=no
-  )
+if(UNIX AND NOT APPLE)
+	set(SQLITE_LDFLAGS -Wl,--as-needed)
+	set(SQLITE_CFLAGS
+		"-DSQLITE_SECURE_DELETE -DSQLITE_ENABLE_COLUMN_METADATA \
+		-DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS \
+		-DSQLITE_ENABLE_RTREE=1 -DSQLITE_SOUNDEX=1 \
+		-DSQLITE_ENABLE_UNLOCK_NOTIFY \
+		-DSQLITE_OMIT_LOOKASIDE=1 -DSQLITE_ENABLE_DBSTAT_VTAB \
+		-DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1 \
+		-DSQLITE_ENABLE_LOAD_EXTENSION \
+		-DSQLITE_ENABLE_JSON1 \
+		-DSQLITE_LIKE_DOESNT_MATCH_BLOBS \
+		-DSQLITE_THREADSAFE=1 \
+		-DSQLITE_ENABLE_FTS3_TOKENIZER=1 \
+		-DSQLITE_MAX_SCHEMA_RETRY=25 \
+		-DSQLITE_ENABLE_PREUPDATE_HOOK \
+		-DSQLITE_ENABLE_SESSION \
+		-DSQLITE_ENABLE_STMTVTAB \
+		-DSQLITE_MAX_VARIABLE_NUMBER=250000 \
+		-fPIC")
+	set(SQLITE_CONFIGURE_ENV ${SQLITE_CONFIGURE_ENV} && export LDFLAGS=${SQLITE_LDFLAGS} && export CFLAGS=${SQLITE_CFLAGS})
+	set(SQLITE_CONFIGURATION_ARGS ${SQLITE_CONFIGURATION_ARGS} --enable-threadsafe --enable-load-extension --enable-json1 --enable-fts4 --enable-fts5
+	    --enable-shared=no)
 endif()

 ExternalProject_Add(external_sqlite
-  URL file://${PACKAGE_DIR}/${SQLITE_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SQLITE_HASH_TYPE}=${SQLITE_HASH}
-  PREFIX ${BUILD_DIR}/sqlite
-  CONFIGURE_COMMAND ${SQLITE_CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/sqlite ${SQLITE_CONFIGURATION_ARGS}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && make install
-  INSTALL_DIR ${LIBDIR}/sqlite
+	URL ${SQLITE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA1=${SQLITE_HASH}
+	PREFIX ${BUILD_DIR}/sqlite
+	PATCH_COMMAND ${SQLITE_PATCH_CMD}
+	CONFIGURE_COMMAND ${SQLITE_CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/sqlite ${SQLITE_CONFIGURATION_ARGS}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && make install
+	INSTALL_DIR ${LIBDIR}/sqlite
 )
--- a/build_files/build_environment/cmake/sse2neon.cmake
+++ b/build_files/build_environment/cmake/sse2neon.cmake
@@ -1,12 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-ExternalProject_Add(external_sse2neon
-  URL file://${PACKAGE_DIR}/${SSE2NEON_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SSE2NEON_HASH_TYPE}=${SSE2NEON_HASH}
-  PREFIX ${BUILD_DIR}/sse2neon
-  CONFIGURE_COMMAND echo sse2neon - Nothing to configure
-  BUILD_COMMAND echo sse2neon - nothing to build
-  INSTALL_COMMAND mkdir -p ${LIBDIR}/sse2neon && cp ${BUILD_DIR}/sse2neon/src/external_sse2neon/sse2neon.h ${LIBDIR}/sse2neon
-  INSTALL_DIR ${LIBDIR}/sse2neon
-)
--- a/build_files/build_environment/cmake/ssl.cmake
+++ b/build_files/build_environment/cmake/ssl.cmake
@@ -1,35 +1,48 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SSL_CONFIGURE_COMMAND ./Configure)
 set(SSL_PATCH_CMD echo .)

-if(APPLE)
-  set(SSL_OS_COMPILER "blender-darwin-${CMAKE_OSX_ARCHITECTURES}")
-  set(SSL_PATCH_CMD ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/ssl/src/external_ssl < ${PATCH_DIR}/ssl.diff)
+if (APPLE)
+	set(SSL_OS_COMPILER "blender-darwin-x86_64")
 else()
-  if(BLENDER_PLATFORM_ARM)
-    set(SSL_OS_COMPILER "blender-linux-aarch64")
-  elseif("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
-    set(SSL_EXTRA_ARGS enable-ec_nistp_64_gcc_128)
-    set(SSL_OS_COMPILER "blender-linux-x86_64")
-  else()
-    set(SSL_OS_COMPILER "blender-linux-x86")
-  endif()
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(SSL_EXTRA_ARGS enable-ec_nistp_64_gcc_128)
+		set(SSL_OS_COMPILER "blender-linux-x86_64")
+	else()
+		set(SSL_OS_COMPILER "blender-linux-x86")
+	endif()
 endif()

 ExternalProject_Add(external_ssl
-  URL file://${PACKAGE_DIR}/${SSL_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SSL_HASH_TYPE}=${SSL_HASH}
-  PREFIX ${BUILD_DIR}/ssl
-  PATCH_COMMAND ${SSL_PATCH_CMD}
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && ${SSL_CONFIGURE_COMMAND} --prefix=${LIBDIR}/ssl
-    --openssldir=${LIBDIR}/ssl
-    no-shared
-    no-idea no-mdc2 no-rc5 no-zlib no-ssl3 enable-unit-test no-ssl3-method enable-rfc3779 enable-cms
-    --config=${CMAKE_CURRENT_SOURCE_DIR}/cmake/ssl.conf
-    ${SSL_OS_COMPILER}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && make install
-  INSTALL_DIR ${LIBDIR}/ssl
+	URL ${SSL_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${SSL_HASH}
+	PREFIX ${BUILD_DIR}/ssl
+	PATCH_COMMAND ${SSL_PATCH_CMD}
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && ${SSL_CONFIGURE_COMMAND} --prefix=${LIBDIR}/ssl
+		--openssldir=${LIBDIR}/ssl
+		no-shared
+		no-idea no-mdc2 no-rc5 no-zlib no-ssl3 enable-unit-test no-ssl3-method enable-rfc3779 enable-cms
+		--config=${CMAKE_CURRENT_SOURCE_DIR}/cmake/ssl.conf
+		${SSL_OS_COMPILER}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && make install
+	INSTALL_DIR ${LIBDIR}/ssl
 )
--- a/Show More
+++ b/Show More