Merge branch 'soc-2019-openxr' into temp-vr-draw-thread

Fix dark VR rendering on Windows Mixed Reality by appyling SRGB OETF
Discussed this in length with @sobotka, and it seems WMR has an utterly broken pixel color pipeline. So we apply a SRGB OETF for this specific runtime to compensate.
2019-08-07 13:31:17 +02:00 · 2019-08-07 11:52:30 +02:00 · 2019-08-07 03:22:33 +02:00 · 2019-08-07 02:20:22 +02:00 · 2019-08-06 01:39:31 +02:00 · 2019-08-06 00:41:49 +02:00
6567 changed files with 706415 additions and 1093327 deletions
--- a/.arcconfig
+++ b/.arcconfig
@@ -1,7 +1,6 @@
 {
 	"project_id" : "Blender",
 	"conduit_uri" : "https://developer.blender.org/",
-	"phabricator.uri" : "https://developer.blender.org/",
 	"git.default-relative-commit" : "origin/master",
 	"arc.land.update.default" : "rebase",
 	"arc.land.onto.default" : "master"
--- a/.clang-format
+++ b/.clang-format
@@ -132,7 +132,9 @@ PenaltyBreakAssignment: 100

 AllowShortFunctionsOnASingleLine: None

-SortIncludes: true
+# Disable for now since it complicates initial migration tests,
+# TODO: look into enabling this in the future.
+SortIncludes: false

 # Don't right align escaped newlines to the right because we have a wide default
 AlignEscapedNewlines: DontAlign
@@ -191,7 +193,6 @@ ForEachMacros:
  - 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
@@ -214,30 +215,17 @@ ForEachMacros:
  - 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
+  - MAN2D_ITER_AXES_BEGIN
  - MAN_ITER_AXES_BEGIN
  - NODE_INSTANCE_HASH_ITER
  - NODE_SOCKET_TYPES_BEGIN
@@ -245,22 +233,13 @@ ForEachMacros:
  - 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
  - SEQP_BEGIN
  - SEQ_BEGIN
-  - 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

 # Use once we bump the minimum version to version 8.
 # # Without this string literals that in-line 'STRINGIFY' behave strangely (a bug?).
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,45 +0,0 @@
-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-misleading-indentation,
-
-  -readability-else-after-return,
-  -readability-inconsistent-declaration-parameter-name,
-  -readability-redundant-preprocessor,
-  -readability-function-size,
-  -readability-function-size,
-  -readability-redundant-string-init,
-  -readability-redundant-member-init,
-  -readability-const-return-type,
-  -readability-static-accessed-through-instance,
-  -readability-redundant-declaration,
-  -readability-qualified-auto,
-  -readability-use-anyofallof,
-
-  bugprone-*,
-  -bugprone-narrowing-conversions,
-  -bugprone-unhandled-self-assignment,
-  -bugprone-branch-clone,
-  -bugprone-macro-parentheses,
-  -bugprone-reserved-identifier,
-
-  -bugprone-sizeof-expression,
-  -bugprone-integer-division,
-  -bugprone-incorrect-roundings,
-  -bugprone-suspicious-string-compare,
-  -bugprone-not-null-terminated-result,
-  -bugprone-suspicious-missing-comma,
-  -bugprone-parent-virtual-call,
-  -bugprone-infinite-loop,
-  -bugprone-copy-constructor-init,
-
-WarningsAsErrors: '*'
--- 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
@@ -40,9 +40,3 @@ 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
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,6 @@
 #
 # The Original Code is Copyright (C) 2006, Blender Foundation
 # All rights reserved.
-#
 # ***** END GPL LICENSE BLOCK *****

 #-----------------------------------------------------------------------------
@@ -41,7 +40,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
  endif()
 endif()

-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.5)

 # Prever LEGACY OpenGL to eb compatible with all the existing releases and
 # platforms which don't hare GLVND yet. Only do it if preference was not set
@@ -97,11 +96,6 @@ cmake_policy(SET CMP0010 NEW)
 # Input directories must have CMakeLists.txt
 cmake_policy(SET CMP0014 NEW)

-# Silence draco warning on macOS, new policy works fine.
-if(POLICY CMP0068)
-  cmake_policy(SET CMP0068 NEW)
-endif()
-
 #-----------------------------------------------------------------------------
 # Load some macros.
 include(build_files/cmake/macros.cmake)
@@ -135,9 +129,74 @@ endif()
 get_blender_version()


+#-----------------------------------------------------------------------------
+# Platform Specific Defaults
+
+# list of var-names
+set(_init_vars)
+
+# initialize to ON
+macro(option_defaults_init)
+  foreach(_var ${ARGV})
+    set(${_var} ON)
+    list(APPEND _init_vars "${_var}")
+  endforeach()
+  unset(_var)
+endmacro()
+
+# remove from namespace
+macro(option_defaults_clear)
+  foreach(_var ${_init_vars})
+    unset(${_var})
+  endforeach()
+  unset(_var)
+  unset(_init_vars)
+endmacro()
+
+
+# values to initialize WITH_****
+option_defaults_init(
+  _init_BUILDINFO
+  _init_CODEC_FFMPEG
+  _init_CYCLES_OSL
+  _init_IMAGE_OPENEXR
+  _init_INPUT_NDOF
+  _init_JACK
+  _init_OPENCOLLADA
+  _init_OPENCOLORIO
+  _init_SDL
+  _init_FFTW3
+  _init_OPENSUBDIV
+)
+
+# customize...
+if(UNIX AND NOT APPLE)
+  # some of these libraries are problematic on Linux
+  # disable less important dependencies by default
+  set(_init_CODEC_FFMPEG                   OFF)
+  set(_init_CYCLES_OSL                     OFF)
+  set(_init_IMAGE_OPENEXR                  OFF)
+  set(_init_JACK                           OFF)
+  set(_init_OPENCOLLADA                    OFF)
+  set(_init_OPENCOLORIO                    OFF)
+  set(_init_SDL                            OFF)
+  set(_init_FFTW3                          OFF)
+  set(_init_OPENSUBDIV                     OFF)
+elseif(WIN32)
+  set(_init_JACK                           OFF)
+elseif(APPLE)
+  set(_init_JACK                           OFF)
+endif()
+
+
 #-----------------------------------------------------------------------------
 # Options

+# First platform specific non-cached vars
+if(UNIX AND NOT (APPLE OR HAIKU))
+  set(WITH_X11 ON)
+endif()
+
 # Blender internal features
 option(WITH_BLENDER "Build blender (disable to build only the blender player)" ON)
 mark_as_advanced(WITH_BLENDER)
@@ -156,7 +215,7 @@ if(APPLE)
  option(WITH_PYTHON_FRAMEWORK "Enable building using the Python available in the framework (OSX only)" OFF)
 endif()

-option(WITH_BUILDINFO     "Include extra build details (only disable for development & faster builds)" ON)
+option(WITH_BUILDINFO     "Include extra build details (only disable for development & faster builds)" ${_init_BUILDINFO})
 if(${CMAKE_VERSION} VERSION_LESS 2.8.8)
  # add_library OBJECT arg unsupported
  set(WITH_BUILDINFO OFF)
@@ -170,28 +229,30 @@ mark_as_advanced(BUILDINFO_OVERRIDE_TIME)

 option(WITH_IK_ITASC      "Enable ITASC IK solver (only disable for development & for incompatible C++ compilers)" ON)
 option(WITH_IK_SOLVER     "Enable Legacy IK solver (only disable for development)" ON)
-option(WITH_FFTW3         "Enable FFTW3 support (Used for smoke, ocean sim, and audio effects)" ON)
+option(WITH_FFTW3         "Enable FFTW3 support (Used for smoke, ocean sim, and audio effects)" ${_init_FFTW3})
 option(WITH_BULLET        "Enable Bullet (Physics Engine)" ON)
 option(WITH_SYSTEM_BULLET "Use the systems bullet library (currently unsupported due to missing features in upstream!)" )
 mark_as_advanced(WITH_SYSTEM_BULLET)
-option(WITH_OPENCOLORIO   "Enable OpenColorIO color management" ON)
-if(APPLE)
-  # There's no OpenXR runtime in sight for macOS, neither is code well
-  # tested there -> disable it by default.
-  option(WITH_XR_OPENXR   "Enable VR features through the OpenXR specification" OFF)
-  mark_as_advanced(WITH_XR_OPENXR)
-else()
-  option(WITH_XR_OPENXR   "Enable VR features through the OpenXR specification" ON)
+option(WITH_OPENCOLORIO   "Enable OpenColorIO color management" ${_init_OPENCOLORIO})
+option(WITH_OPENXR        "Enable VR features through the OpenXR specification" ON)
+if(WITH_OPENXR)
+  option(OPENXR_USE_BUNDLED_SRC "Compile using the bundled OpenXR SDK sources (otherwise it has to be compiled manually)" ON)
+  if(NOT OPENXR_USE_BUNDLED_SRC)
+    find_package(OpenXR-SDK)
+    if(NOT OPENXR_SDK_FOUND)
+      message(WARNING "OpenXR-SDK was not found, disabling WITH_OPENXR")
+      set(WITH_OPENXR OFF)
+    endif()
+  endif()
 endif()

 # Compositor
 option(WITH_COMPOSITOR         "Enable the tile based nodal compositor" ON)
-option(WITH_OPENIMAGEDENOISE   "Enable the OpenImageDenoise compositing node" ON)

-option(WITH_OPENSUBDIV    "Enable OpenSubdiv for surface subdivision" ON)
+option(WITH_OPENSUBDIV    "Enable OpenSubdiv for surface subdivision" ${_init_OPENSUBDIV})

-option(WITH_OPENVDB       "Enable features relying on OpenVDB" ON)
-option(WITH_OPENVDB_BLOSC "Enable blosc compression for OpenVDB, only enable if OpenVDB was built with blosc support" ON)
+option(WITH_OPENVDB       "Enable features relying on OpenVDB" OFF)
+option(WITH_OPENVDB_BLOSC "Enable blosc compression for OpenVDB, only enable if OpenVDB was built with blosc support" OFF)
 option(WITH_OPENVDB_3_ABI_COMPATIBLE "Assume OpenVDB library has been compiled with version 3 ABI compatibility" OFF)
 mark_as_advanced(WITH_OPENVDB_3_ABI_COMPATIBLE)

@@ -202,15 +263,7 @@ mark_as_advanced(WITH_GHOST_DEBUG)
 option(WITH_GHOST_SDL    "Enable building Blender against SDL for windowing rather than the native APIs" OFF)
 mark_as_advanced(WITH_GHOST_SDL)

-if(UNIX AND NOT (APPLE OR HAIKU))
-  option(WITH_GHOST_X11 "Enable building Blender against X11 for windowing" ON)
-  mark_as_advanced(WITH_GHOST_X11)
-
-  option(WITH_GHOST_WAYLAND "Enable building Blender against Wayland for windowing (under development)" OFF)
-  mark_as_advanced(WITH_GHOST_WAYLAND)
-endif()
-
-if(WITH_GHOST_X11)
+if(WITH_X11)
  option(WITH_GHOST_XDND    "Enable drag'n'drop support on X11 using XDND protocol" ON)
 endif()

@@ -218,8 +271,6 @@ endif()
 option(WITH_HEADLESS      "Build without graphical support (renderfarm, server mode only)" OFF)
 mark_as_advanced(WITH_HEADLESS)

-option(WITH_QUADRIFLOW    "Build with quadriflow remesher support" ON)
-
 option(WITH_AUDASPACE    "Build with blenders audio library (only disable if you know what you're doing!)" ON)
 option(WITH_SYSTEM_AUDASPACE "Build with external audaspace library installed on the system (only enable if you know what you're doing!)" OFF)
 mark_as_advanced(WITH_AUDASPACE)
@@ -235,7 +286,7 @@ if(UNIX AND NOT APPLE)
  mark_as_advanced(WITH_OPENMP_STATIC)
 endif()

-if(WITH_GHOST_X11)
+if(WITH_X11)
  option(WITH_X11_XINPUT    "Enable X11 Xinput (tablet support and unicode input)"  ON)
  option(WITH_X11_XF86VMODE "Enable X11 video mode switching"                       ON)
  option(WITH_X11_XFIXES    "Enable X11 XWayland cursor warping workaround"         ON)
@@ -258,13 +309,16 @@ endif()


 # Modifiers
-option(WITH_MOD_FLUID           "Enable Mantaflow Fluid Simulation Framework" ON)
+option(WITH_MOD_FLUID           "Enable Elbeem Modifier (Fluid Simulation)" ON)
+option(WITH_MOD_SMOKE           "Enable Smoke Modifier (Smoke Simulation)" ON)
 option(WITH_MOD_REMESH          "Enable Remesh Modifier" ON)
-option(WITH_MOD_OCEANSIM        "Enable Ocean Modifier" ON)
+# option(WITH_MOD_CLOTH_ELTOPO    "Enable Experimental cloth solver" OFF)  # this is now only available in a branch
+# mark_as_advanced(WITH_MOD_CLOTH_ELTOPO)
+option(WITH_MOD_OCEANSIM        "Enable Ocean Modifier" OFF)

 # Image format support
 option(WITH_OPENIMAGEIO         "Enable OpenImageIO Support (http://www.openimageio.org)" ON)
-option(WITH_IMAGE_OPENEXR       "Enable OpenEXR Support (http://www.openexr.com)" ON)
+option(WITH_IMAGE_OPENEXR       "Enable OpenEXR Support (http://www.openexr.com)" ${_init_IMAGE_OPENEXR})
 option(WITH_IMAGE_OPENJPEG      "Enable OpenJpeg Support (http://www.openjpeg.org)" ON)
 option(WITH_IMAGE_TIFF          "Enable LibTIFF Support" ON)
 option(WITH_IMAGE_DDS           "Enable DDS Image Support" ON)
@@ -273,27 +327,23 @@ option(WITH_IMAGE_HDR           "Enable HDR Image Support" ON)

 # Audio/Video format support
 option(WITH_CODEC_AVI           "Enable Blenders own AVI file support (raw/jpeg)" ON)
-option(WITH_CODEC_FFMPEG        "Enable FFMPeg Support (http://ffmpeg.org)" ON)
-option(WITH_CODEC_SNDFILE       "Enable libsndfile Support (http://www.mega-nerd.com/libsndfile)" ON)
+option(WITH_CODEC_FFMPEG        "Enable FFMPeg Support (http://ffmpeg.org)" ${_init_CODEC_FFMPEG})
+option(WITH_CODEC_SNDFILE       "Enable libsndfile Support (http://www.mega-nerd.com/libsndfile)" OFF)

 # Alembic support
-option(WITH_ALEMBIC             "Enable Alembic Support" ON)
-
-# Universal Scene Description support
-option(WITH_USD                 "Enable Universal Scene Description (USD) Support" ON)
+option(WITH_ALEMBIC             "Enable Alembic Support" OFF)
+option(WITH_ALEMBIC_HDF5        "Enable Legacy Alembic Support (not officially supported)" OFF)

 # 3D format support
 # Disable opencollada when we don't have precompiled libs
-option(WITH_OPENCOLLADA   "Enable OpenCollada Support (http://www.opencollada.org)" ON)
+option(WITH_OPENCOLLADA   "Enable OpenCollada Support (http://www.opencollada.org)" ${_init_OPENCOLLADA})

 # Sound output
-option(WITH_SDL           "Enable SDL for sound and joystick support" ON)
+option(WITH_SDL           "Enable SDL for sound and joystick support" ${_init_SDL})
 option(WITH_OPENAL        "Enable OpenAL Support (http://www.openal.org)" ON)
-if(NOT WIN32)
-  option(WITH_JACK          "Enable JACK Support (http://www.jackaudio.org)" ON)
-  if(UNIX AND NOT APPLE)
-    option(WITH_JACK_DYNLOAD  "Enable runtime dynamic JACK libraries loading" OFF)
-  endif()
+option(WITH_JACK          "Enable JACK Support (http://www.jackaudio.org)" ${_init_JACK})
+if(UNIX AND NOT APPLE)
+  option(WITH_JACK_DYNLOAD  "Enable runtime dynamic JACK libraries loading" OFF)
 endif()
 if(UNIX AND NOT APPLE)
  option(WITH_SDL_DYNLOAD  "Enable runtime dynamic SDL libraries loading" OFF)
@@ -309,7 +359,7 @@ option(WITH_DRACO         "Enable Draco mesh compression Python module (used for

 # Camera/motion tracking
 option(WITH_LIBMV         "Enable Libmv structure from motion library" ON)
-option(WITH_LIBMV_SCHUR_SPECIALIZATIONS "Enable fixed-size schur specializations." ON)
+option(WITH_LIBMV_SCHUR_SPECIALIZATIONS "Enable fixed-size schur specializations." OFF)
 mark_as_advanced(WITH_LIBMV_SCHUR_SPECIALIZATIONS)

 # Logging/unbit test libraries.
@@ -325,7 +375,8 @@ option(WITH_FREESTYLE     "Enable Freestyle (advanced edges rendering)" ON)
 if(WIN32)
  option(WITH_INPUT_IME "Enable Input Method Editor (IME) for complex Asian character input" ON)
 endif()
-option(WITH_INPUT_NDOF "Enable NDOF input devices (SpaceNavigator and friends)" ON)
+option(WITH_INPUT_NDOF "Enable NDOF input devices (SpaceNavigator and friends)" ${_init_INPUT_NDOF})
+option(WITH_RAYOPTIMIZATION "Enable use of SIMD (SSE) optimizations for the raytracer" ON)
 if(UNIX AND NOT APPLE)
  option(WITH_INSTALL_PORTABLE "Install redistributeable runtime, otherwise install into CMAKE_INSTALL_PREFIX" ON)
  option(WITH_STATIC_LIBS "Try to link with static libraries, as much as possible, to make blender more portable across distributions" OFF)
@@ -361,13 +412,13 @@ mark_as_advanced(WITH_CPU_SSE)
 option(WITH_CYCLES                  "Enable Cycles Render Engine" ON)
 option(WITH_CYCLES_STANDALONE       "Build Cycles standalone application" OFF)
 option(WITH_CYCLES_STANDALONE_GUI   "Build Cycles standalone with GUI" OFF)
-option(WITH_CYCLES_OSL              "Build Cycles with OSL support" ON)
-option(WITH_CYCLES_EMBREE           "Build Cycles with Embree support" ON)
+option(WITH_CYCLES_OSL              "Build Cycles with OSL support" ${_init_CYCLES_OSL})
+option(WITH_CYCLES_EMBREE           "Build Cycles with Embree support" OFF)
 option(WITH_CYCLES_CUDA_BINARIES    "Build Cycles CUDA binaries" OFF)
 option(WITH_CYCLES_CUBIN_COMPILER   "Build cubins with nvrtc based compiler instead of nvcc" OFF)
 option(WITH_CYCLES_CUDA_BUILD_SERIAL "Build cubins one after another (useful on machines with limited RAM)" OFF)
 mark_as_advanced(WITH_CYCLES_CUDA_BUILD_SERIAL)
-set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 compute_75 CACHE STRING "CUDA architectures to build binaries for")
+set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 CACHE STRING "CUDA architectures to build binaries for")
 mark_as_advanced(CYCLES_CUDA_BINARIES_ARCH)
 unset(PLATFORM_DEFAULT)
 option(WITH_CYCLES_LOGGING  "Build Cycles with logging support" ON)
@@ -381,7 +432,6 @@ mark_as_advanced(WITH_CYCLES_DEBUG)
 mark_as_advanced(WITH_CYCLES_NATIVE_ONLY)

 option(WITH_CYCLES_DEVICE_CUDA              "Enable Cycles CUDA compute support" ON)
-option(WITH_CYCLES_DEVICE_OPTIX             "Enable Cycles OptiX support" OFF)
 option(WITH_CYCLES_DEVICE_OPENCL            "Enable Cycles OpenCL compute support" ON)
 option(WITH_CYCLES_NETWORK              "Enable Cycles compute over network support (EXPERIMENTAL and unfinished)" OFF)
 mark_as_advanced(WITH_CYCLES_DEVICE_CUDA)
@@ -415,25 +465,13 @@ mark_as_advanced(WITH_CXX_GUARDEDALLOC)
 option(WITH_ASSERT_ABORT "Call abort() when raising an assertion through BLI_assert()" ON)
 mark_as_advanced(WITH_ASSERT_ABORT)

-if(UNIX AND NOT APPLE)
-  option(WITH_CLANG_TIDY "Use Clang Tidy to analyze the source code (only enable for development on Linux using Clang)" OFF)
-  mark_as_advanced(WITH_CLANG_TIDY)
-endif()
-
-option(WITH_BOOST "Enable features depending on boost" ON)
-option(WITH_TBB   "Enable features depending on TBB (OpenVDB, OpenImageDenoise, sculpt multithreading)" ON)
-
-# TBB malloc is only supported on for windows currently
-if(WIN32)
-  option(WITH_TBB_MALLOC_PROXY "Enable the TBB malloc replacement" ON)
-endif()
+option(WITH_BOOST                   "Enable features depending on boost" ON)

 # Unit testsing
 option(WITH_GTESTS "Enable GTest unit testing" OFF)
 option(WITH_OPENGL_RENDER_TESTS "Enable OpenGL render related unit testing (Experimental)" OFF)
 option(WITH_OPENGL_DRAW_TESTS "Enable OpenGL UI drawing related unit testing (Experimental)" OFF)
-set(TEST_PYTHON_EXE "" CACHE PATH "Python executable to run unit tests")
-mark_as_advanced(TEST_PYTHON_EXE)
+

 # Documentation
 if(UNIX AND NOT APPLE)
@@ -474,8 +512,6 @@ endif()
 if(CMAKE_COMPILER_IS_GNUCC)
  option(WITH_LINKER_GOLD "Use ld.gold linker which is usually faster than ld.bfd" ON)
  mark_as_advanced(WITH_LINKER_GOLD)
-  option(WITH_LINKER_LLD "Use ld.lld linker which is usually faster than ld.gold" OFF)
-  mark_as_advanced(WITH_LINKER_LLD)
 endif()

 if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
@@ -511,8 +547,7 @@ if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
    if(NOT MSVC)
      find_library(COMPILER_ASAN_LIBRARY asan ${CMAKE_C_IMPLICIT_LINK_DIRECTORIES})
    else()
-      find_library(
-        COMPILER_ASAN_LIBRARY NAMES clang_rt.asan-x86_64
+      find_library( COMPILER_ASAN_LIBRARY NAMES clang_rt.asan-x86_64
        PATHS
        [HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\LLVM\\LLVM;]/lib/clang/7.0.0/lib/windows
        [HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\LLVM\\LLVM;]/lib/clang/6.0.0/lib/windows
@@ -527,6 +562,15 @@ if(WIN32)
  option(WITH_WINDOWS_FIND_MODULES "Use find_package to locate libraries" OFF)
  mark_as_advanced(WITH_WINDOWS_FIND_MODULES)

+  option(WITH_WINDOWS_CODESIGN "Use signtool to sign the final binary." OFF)
+  mark_as_advanced(WITH_WINDOWS_CODESIGN)
+
+  set(WINDOWS_CODESIGN_PFX CACHE FILEPATH  "Path to pfx file to use for codesigning.")
+  mark_as_advanced(WINDOWS_CODESIGN_PFX)
+
+  set(WINDOWS_CODESIGN_PFX_PASSWORD CACHE STRING  "password for pfx file used for codesigning.")
+  mark_as_advanced(WINDOWS_CODESIGN_PFX_PASSWORD)
+
  option(WINDOWS_USE_VISUAL_STUDIO_PROJECT_FOLDERS "Organize the visual studio projects according to source folder structure." ON)
  mark_as_advanced(WINDOWS_USE_VISUAL_STUDIO_PROJECT_FOLDERS)

@@ -535,19 +579,6 @@ if(WIN32)

  option(WINDOWS_PYTHON_DEBUG "Include the files needed for debugging python scripts with visual studio 2017+." OFF)
  mark_as_advanced(WINDOWS_PYTHON_DEBUG)
-
-  option(WITH_WINDOWS_BUNDLE_CRT "Bundle the C runtime for install free distribution." ON)
-  mark_as_advanced(WITH_WINDOWS_BUNDLE_CRT)
-
-  option(WITH_WINDOWS_SCCACHE "Use sccache to speed up builds (Ninja builder only)" OFF)
-  mark_as_advanced(WITH_WINDOWS_SCCACHE)
-
-  option(WITH_WINDOWS_PDB "Generate a pdb file for client side stacktraces" ON)
-  mark_as_advanced(WITH_WINDOWS_PDB)
-
-  option(WITH_WINDOWS_STRIPPED_PDB "Use a stripped PDB file" On)
-  mark_as_advanced(WITH_WINDOWS_STRIPPED_PDB)
-
 endif()

 # The following only works with the Ninja generator in CMake >= 3.0.
@@ -558,14 +589,8 @@ if("${CMAKE_GENERATOR}" MATCHES "Ninja")
  mark_as_advanced(WITH_NINJA_POOL_JOBS)
 endif()

-if(UNIX AND NOT APPLE)
-  option(WITH_CXX11_ABI "Use native C++11 ABI of compiler" ON)
-  mark_as_advanced(WITH_CXX11_ABI)
-endif()
-
-# Installation process.
-option(POSTINSTALL_SCRIPT "Run given CMake script after installation process" OFF)
-mark_as_advanced(POSTINSTALL_SCRIPT)
+# avoid using again
+option_defaults_clear()

 # end option(...)

@@ -624,6 +649,12 @@ if(WITH_PYTHON_MODULE AND WITH_PYTHON_INSTALL)
  message(FATAL_ERROR "WITH_PYTHON_MODULE requires WITH_PYTHON_INSTALL to be OFF")
 endif()

+
+# may as well build python module without a UI
+if(WITH_PYTHON_MODULE)
+  set(WITH_HEADLESS ON)
+endif()
+
 if(NOT WITH_PYTHON)
  set(WITH_CYCLES OFF)
  set(WITH_DRACO OFF)
@@ -636,30 +667,28 @@ endif()

 # enable boost for cycles, audaspace or i18n
 # otherwise if the user disabled
+if(NOT WITH_BOOST)
+  # Explicitly disabled. so disable all deps.
+  macro(set_and_warn
+    _setting _val)
+    if(${${_setting}})
+      message(STATUS "'WITH_BOOST' is disabled: forcing 'set(${_setting} ${_val})'")
+    endif()
+    set(${_setting} ${_val})
+  endmacro()

-set_and_warn_dependency(WITH_BOOST WITH_CYCLES         OFF)
-set_and_warn_dependency(WITH_BOOST WITH_INTERNATIONAL  OFF)
-set_and_warn_dependency(WITH_BOOST WITH_OPENVDB        OFF)
-set_and_warn_dependency(WITH_BOOST WITH_OPENCOLORIO    OFF)
-set_and_warn_dependency(WITH_BOOST WITH_QUADRIFLOW     OFF)
-set_and_warn_dependency(WITH_BOOST WITH_USD            OFF)
-set_and_warn_dependency(WITH_BOOST WITH_ALEMBIC        OFF)
-
-if(WITH_BOOST AND NOT (WITH_CYCLES OR WITH_OPENIMAGEIO OR WITH_INTERNATIONAL OR
-   WITH_OPENVDB OR WITH_OPENCOLORIO OR WITH_USD OR WITH_ALEMBIC))
-  message(STATUS "No dependencies need 'WITH_BOOST' forcing WITH_BOOST=OFF")
+  set_and_warn(WITH_CYCLES         OFF)
+  set_and_warn(WITH_INTERNATIONAL  OFF)
+  set_and_warn(WITH_OPENVDB        OFF)
+  set_and_warn(WITH_OPENCOLORIO    OFF)
+elseif(WITH_CYCLES OR WITH_OPENIMAGEIO OR WITH_INTERNATIONAL OR
+       WITH_OPENVDB OR WITH_OPENCOLORIO)
+  # Keep enabled
+else()
+  # Disable boost if not needed.
  set(WITH_BOOST OFF)
 endif()

-set_and_warn_dependency(WITH_TBB WITH_CYCLES            OFF)
-set_and_warn_dependency(WITH_TBB WITH_USD               OFF)
-set_and_warn_dependency(WITH_TBB WITH_OPENIMAGEDENOISE  OFF)
-set_and_warn_dependency(WITH_TBB WITH_OPENVDB           OFF)
-set_and_warn_dependency(WITH_TBB WITH_MOD_FLUID         OFF)
-
-# OpenVDB uses 'half' type from OpenEXR & fails to link without OpenEXR enabled.
-set_and_warn_dependency(WITH_IMAGE_OPENEXR WITH_OPENVDB OFF)
-
 # auto enable openimageio for cycles
 if(WITH_CYCLES)
  set(WITH_OPENIMAGEIO ON)
@@ -689,15 +718,13 @@ if(WITH_INSTALL_PORTABLE)
 endif()

 if(WITH_GHOST_SDL OR WITH_HEADLESS)
-  set(WITH_GHOST_WAYLAND OFF)
-  set(WITH_GHOST_X11     OFF)
+  set(WITH_X11           OFF)
  set(WITH_X11_XINPUT    OFF)
  set(WITH_X11_XF86VMODE OFF)
  set(WITH_X11_XFIXES    OFF)
  set(WITH_X11_ALPHA     OFF)
  set(WITH_GHOST_XDND    OFF)
  set(WITH_INPUT_IME     OFF)
-  set(WITH_XR_OPENXR     OFF)
 endif()

 if(WITH_CPU_SSE)
@@ -733,12 +760,14 @@ if(NOT WITH_CUDA_DYNLOAD)
 endif()

 #-----------------------------------------------------------------------------
-# Check check if submodules are cloned
+# Check for valid directories
+# ... a partial checkout may cause this.
+#
+# note: we need to check for a known subdir in both cases.
+#       since uninitialized git submodules will give blank dirs

 if(WITH_INTERNATIONAL)
-  file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/datafiles/locale")
-  list(LENGTH RESULT DIR_LEN)
-  if(DIR_LEN EQUAL 0)
+  if(NOT EXISTS "${CMAKE_SOURCE_DIR}/release/datafiles/locale/languages")
    message(WARNING
      "Translation path '${CMAKE_SOURCE_DIR}/release/datafiles/locale' is missing, "
      "This is a 'git submodule', which are known not to work with bridges to other version "
@@ -760,9 +789,7 @@ if(WITH_PYTHON)
    message(FATAL_ERROR "At least Python 3.7 is required to build")
  endif()

-  file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/scripts/addons")
-  list(LENGTH RESULT DIR_LEN)
-  if(DIR_LEN EQUAL 0)
+  if(NOT EXISTS "${CMAKE_SOURCE_DIR}/release/scripts/addons/modules")
    message(WARNING
      "Addons path '${CMAKE_SOURCE_DIR}/release/scripts/addons' is missing, "
      "This is a 'git submodule', which are known not to work with bridges to other version "
@@ -811,14 +838,67 @@ if(NOT CMAKE_BUILD_TYPE MATCHES "Release")
    if(MSVC)
      set(COMPILER_ASAN_LINKER_FLAGS "/FUNCTIONPADMIN:6")
    endif()
-    if(COMPILER_ASAN_LIBRARY)
-      set(PLATFORM_LINKLIBS "${PLATFORM_LINKLIBS};${COMPILER_ASAN_LIBRARY}")
-      set(PLATFORM_LINKFLAGS "${COMPILER_ASAN_LIBRARY} ${COMPILER_ASAN_LINKER_FLAGS}")
-      set(PLATFORM_LINKFLAGS_DEBUG "${COMPILER_ASAN_LIBRARY} ${COMPILER_ASAN_LINKER_FLAGS}")
-    endif()
+    set(PLATFORM_LINKLIBS "${PLATFORM_LINKLIBS};${COMPILER_ASAN_LIBRARY}")
+    set(PLATFORM_LINKFLAGS "${COMPILER_ASAN_LIBRARY} ${COMPILER_ASAN_LINKER_FLAGS}")
+    set(PLATFORM_LINKFLAGS_DEBUG "${COMPILER_ASAN_LIBRARY} ${COMPILER_ASAN_LINKER_FLAGS}")
  endif()
 endif()

+#-----------------------------------------------------------------------------
+#Platform specifics
+
+if(WITH_X11)
+  find_package(X11 REQUIRED)
+
+  find_path(X11_XF86keysym_INCLUDE_PATH X11/XF86keysym.h ${X11_INC_SEARCH_PATH})
+  mark_as_advanced(X11_XF86keysym_INCLUDE_PATH)
+
+  list(APPEND PLATFORM_LINKLIBS ${X11_X11_LIB})
+
+  if(WITH_X11_XINPUT)
+    if(X11_Xinput_LIB)
+      list(APPEND PLATFORM_LINKLIBS ${X11_Xinput_LIB})
+    else()
+      message(FATAL_ERROR "LibXi not found. Disable WITH_X11_XINPUT if you
+      want to build without tablet support")
+    endif()
+  endif()
+
+  if(WITH_X11_XF86VMODE)
+    # XXX, why doesn't cmake make this available?
+    find_library(X11_Xxf86vmode_LIB Xxf86vm   ${X11_LIB_SEARCH_PATH})
+    mark_as_advanced(X11_Xxf86vmode_LIB)
+    if(X11_Xxf86vmode_LIB)
+      list(APPEND PLATFORM_LINKLIBS ${X11_Xxf86vmode_LIB})
+    else()
+      message(FATAL_ERROR "libXxf86vm not found. Disable WITH_X11_XF86VMODE if you
+      want to build without")
+    endif()
+  endif()
+
+  if(WITH_X11_XFIXES)
+    if(X11_Xfixes_LIB)
+      list(APPEND PLATFORM_LINKLIBS ${X11_Xfixes_LIB})
+    else()
+      message(FATAL_ERROR "libXfixes not found. Disable WITH_X11_XFIXES if you
+      want to build without")
+    endif()
+  endif()
+
+  if(WITH_X11_ALPHA)
+    find_library(X11_Xrender_LIB Xrender  ${X11_LIB_SEARCH_PATH})
+    mark_as_advanced(X11_Xrender_LIB)
+    if(X11_Xrender_LIB)
+      list(APPEND PLATFORM_LINKLIBS ${X11_Xrender_LIB})
+    else()
+      message(FATAL_ERROR "libXrender not found. Disable WITH_X11_ALPHA if you
+      want to build without")
+    endif()
+  endif()
+
+endif()
+
+
 # ----------------------------------------------------------------------------
 # Main Platform Checks
 #
@@ -900,7 +980,7 @@ if(MSVC)
  # endianess-detection and auto-setting is counterproductive
  # so we just set endianness according CMAKE_OSX_ARCHITECTURES

-elseif(CMAKE_OSX_ARCHITECTURES MATCHES i386 OR CMAKE_OSX_ARCHITECTURES MATCHES x86_64 OR CMAKE_OSX_ARCHITECTURES MATCHES arm64)
+elseif(CMAKE_OSX_ARCHITECTURES MATCHES i386 OR CMAKE_OSX_ARCHITECTURES MATCHES x86_64)
  add_definitions(-D__LITTLE_ENDIAN__)
 elseif(CMAKE_OSX_ARCHITECTURES MATCHES ppc OR CMAKE_OSX_ARCHITECTURES MATCHES ppc64)
  add_definitions(-D__BIG_ENDIAN__)
@@ -928,28 +1008,6 @@ if(NOT WITH_SYSTEM_EIGEN3)
  set(EIGEN3_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/extern/Eigen3)
 endif()

-if(WITH_OPENVDB)
-  list(APPEND OPENVDB_DEFINITIONS -DWITH_OPENVDB)
-
-  if(WITH_OPENVDB_3_ABI_COMPATIBLE)
-    list(APPEND OPENVDB_DEFINITIONS -DOPENVDB_3_ABI_COMPATIBLE)
-  endif()
-
-  list(APPEND OPENVDB_INCLUDE_DIRS
-    ${BOOST_INCLUDE_DIR}
-    ${TBB_INCLUDE_DIRS}
-    ${OPENEXR_INCLUDE_DIRS})
-
-  list(APPEND OPENVDB_LIBRARIES ${OPENEXR_LIBRARIES} ${ZLIB_LIBRARIES})
-
-  if(WITH_OPENVDB_BLOSC)
-    list(APPEND OPENVDB_DEFINITIONS -DWITH_OPENVDB_BLOSC)
-    list(APPEND OPENVDB_LIBRARIES ${BLOSC_LIBRARIES} ${ZLIB_LIBRARIES})
-  endif()
-
-  list(APPEND OPENVDB_LIBRARIES ${BOOST_LIBRARIES} ${TBB_LIBRARIES})
-endif()
-
 #-----------------------------------------------------------------------------
 # Configure OpenGL.

@@ -973,7 +1031,7 @@ if(WITH_GL_PROFILE_ES20)
      )
    endif()

-    list(APPEND BLENDER_GL_LIBRARIES "${OPENGLES_LIBRARY}")
+    list(APPEND BLENDER_GL_LIBRARIES OPENGLES_LIBRARY)

  else()
    set(OPENGLES_LIBRARY "" CACHE FILEPATH "OpenGL ES 2.0 library file")
@@ -1033,10 +1091,7 @@ else()
 endif()

 if(WITH_GL_EGL)
-  find_package(OpenGL REQUIRED EGL)
-  list(APPEND BLENDER_GL_LIBRARIES OpenGL::EGL)
-
-  list(APPEND GL_DEFINITIONS -DWITH_GL_EGL -DGLEW_EGL -DGLEW_INC_EGL)
+  list(APPEND GL_DEFINITIONS -DWITH_GL_EGL)

  if(WITH_SYSTEM_GLES)
    if(NOT OPENGLES_EGL_LIBRARY)
@@ -1046,7 +1101,7 @@ if(WITH_GL_EGL)
      )
    endif()

-    list(APPEND BLENDER_GL_LIBRARIES ${OPENGLES_EGL_LIBRARY})
+    list(APPEND BLENDER_GL_LIBRARIES OPENGLES_EGL_LIBRARY)

  else()
    set(OPENGLES_EGL_LIBRARY "" CACHE FILEPATH "EGL library file")
@@ -1086,6 +1141,10 @@ else()
  list(APPEND GL_DEFINITIONS -DWITH_GL_PROFILE_CORE)
 endif()

+if(WITH_GL_EGL)
+  list(APPEND GL_DEFINITIONS -DWITH_EGL)
+endif()
+
 #-----------------------------------------------------------------------------
 # Configure OpenMP.
 if(WITH_OPENMP)
@@ -1128,7 +1187,6 @@ if(WITH_SYSTEM_GLEW)
    message(FATAL_ERROR "GLEW is required to build Blender. Install it or disable WITH_SYSTEM_GLEW.")
  endif()

-  set(GLEW_INCLUDE_PATH "${GLEW_INCLUDE_DIR}")
  set(BLENDER_GLEW_LIBRARIES ${GLEW_LIBRARY})
 else()
  if(WITH_GLEW_ES)
@@ -1157,6 +1215,10 @@ else()
      list(APPEND GL_DEFINITIONS -DGL_ES_VERSION_1_0=0 -DGL_ES_VERSION_CL_1_1=0 -DGL_ES_VERSION_CM_1_1=0)
    endif()

+    if(WITH_GL_EGL)
+      list(APPEND GL_DEFINITIONS -DGLEW_INC_EGL)
+    endif()
+
    set(BLENDER_GLEW_LIBRARIES extern_glew_es bf_intern_glew_mx)

  else()
@@ -1243,7 +1305,7 @@ endif()

 if(WITH_LIBMV)
  # We always have C++11 which includes unordered_map.
-  set(CERES_DEFINES "-DCERES_STD_UNORDERED_MAP;-DCERES_USE_CXX_THREADS")
+  set(CERES_DEFINES -DCERES_STD_UNORDERED_MAP)
 endif()

 #-----------------------------------------------------------------------------
@@ -1337,16 +1399,13 @@ if(CMAKE_COMPILER_IS_GNUCC)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_LOGICAL_OP -Wlogical-op)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNDEF -Wundef)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_INIT_SELF -Winit-self)  # needs -Wuninitialized
+  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_NULL -Wnonnull)  # C only
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_MISSING_INCLUDE_DIRS -Wmissing-include-dirs)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_DIV_BY_ZERO -Wno-div-by-zero)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_TYPE_LIMITS -Wtype-limits)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_FORMAT_SIGN -Wformat-signedness)
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_RESTRICT -Wrestrict)

-  # C-only.
-  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_NO_NULL -Wnonnull)
-  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_ABSOLUTE_VALUE -Wabsolute-value)
-
  # gcc 4.2 gives annoying warnings on every file with this
  if(NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "4.3")
    ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNINITIALIZED -Wuninitialized)
@@ -1379,6 +1438,7 @@ if(CMAKE_COMPILER_IS_GNUCC)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_DIV_BY_ZERO -Wno-div-by-zero)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_TYPE_LIMITS -Wtype-limits)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_ERROR_RETURN_TYPE  -Werror=return-type)
+  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_ERROR_IMPLICIT_FUNCTION_DECLARATION -Werror=implicit-function-declaration)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_CHAR_SUBSCRIPTS -Wno-char-subscripts)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_UNKNOWN_PRAGMAS -Wno-unknown-pragmas)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_POINTER_ARITH -Wpointer-arith)
@@ -1453,7 +1513,6 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")

  # flags to undo strict flags
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_PARAMETER -Wno-unused-parameter)
-  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_VARIABLE  -Wno-unused-variable)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_MACROS    -Wno-unused-macros)

  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_MISSING_VARIABLE_DECLARATIONS -Wno-missing-variable-declarations)
@@ -1472,8 +1531,6 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_REORDER -Wno-reorder)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_COMMENT -Wno-comment)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_TYPEDEFS -Wno-unused-local-typedefs)
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNDEFINED_VAR_TEMPLATE -Wno-undefined-var-template)
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_INSTANTIATION_AFTER_SPECIALIZATION -Wno-instantiation-after-specialization)

 elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")

@@ -1518,7 +1575,7 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "MSVC")

  if(MSVC_VERSION GREATER_EQUAL 1911)
    # see https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/c5038?view=vs-2017
-    set(_WARNINGS "${_WARNINGS} /w35038") # order of initialization in c++ constructors
+    set(_WARNINGS "${_WARNINGS} /w35038") #order of initialisation in c++ constructors
  endif()

  string(REPLACE ";" " " _WARNINGS "${_WARNINGS}")
@@ -1558,16 +1615,17 @@ if(WITH_PYTHON)
  endif()
 endif()

-if(MSVC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++17")
-elseif(
+if(
  CMAKE_COMPILER_IS_GNUCC OR
  CMAKE_C_COMPILER_ID MATCHES "Clang" OR
  CMAKE_C_COMPILER_ID MATCHES "Intel"
 )
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+  # TODO(sergey): Do we want c++11 or gnu-c++11 here?
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+elseif(MSVC)
+  # Nothing special is needed, C++11 features are available by default.
 else()
-  message(FATAL_ERROR "Unknown compiler ${CMAKE_C_COMPILER_ID}, can't enable C++17 build")
+  message(FATAL_ERROR "Unknown compiler ${CMAKE_C_COMPILER_ID}, can't enable C++11 build")
 endif()

 # Visual Studio has all standards it supports available by default
@@ -1581,12 +1639,6 @@ if(
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11")
 endif()

-if(UNIX AND NOT APPLE)
-  if(NOT WITH_CXX11_ABI)
-    set(PLATFORM_CFLAGS "${PLATFORM_CFLAGS} -D_GLIBCXX_USE_CXX11_ABI=0")
-  endif()
-endif()
-
 # Include warnings first, so its possible to disable them with user defined flags
 # eg: -Wno-uninitialized
 set(CMAKE_C_FLAGS "${C_WARNINGS} ${CMAKE_C_FLAGS} ${PLATFORM_CFLAGS}")
@@ -1628,6 +1680,10 @@ endif()
 #-----------------------------------------------------------------------------
 # Libraries

+if(WITH_GTESTS)
+  include(GTestTesting)
+endif()
+
 if(WITH_BLENDER)
  add_subdirectory(intern)
  add_subdirectory(extern)
@@ -1715,17 +1771,14 @@ if(FIRST_RUN)
  info_cfg_option(WITH_CYCLES)
  info_cfg_option(WITH_FREESTYLE)
  info_cfg_option(WITH_OPENCOLORIO)
-  info_cfg_option(WITH_XR_OPENXR)
-  info_cfg_option(WITH_OPENIMAGEDENOISE)
+  info_cfg_option(WITH_OPENXR)
  info_cfg_option(WITH_OPENVDB)
  info_cfg_option(WITH_ALEMBIC)
-  info_cfg_option(WITH_QUADRIFLOW)
-  info_cfg_option(WITH_USD)
-  info_cfg_option(WITH_TBB)

  info_cfg_text("Compiler Options:")
  info_cfg_option(WITH_BUILDINFO)
  info_cfg_option(WITH_OPENMP)
+  info_cfg_option(WITH_RAYOPTIMIZATION)

  info_cfg_text("System Options:")
  info_cfg_option(WITH_INSTALL_PORTABLE)
--- a/138
+++ b/138
@@ -32,7 +32,6 @@ Convenience Targets
   * 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.
@@ -63,7 +62,8 @@ Testing Targets
   Not associated with building Blender.

   * test:
-     Run automated tests with ctest.
+     Run ctest, currently tests import/export,
+     operator execution and that python modules load
   * test_cmake:
     Runs our own cmake file checker
     which detects errors in the cmake file list definitions
@@ -72,6 +72,17 @@ Testing Targets
     which are tagged to use the stricter formatting
   * test_deprecated:
     Checks for deprecation tags in our code which may need to be removed
+   * test_style_c:
+     Checks C/C++ conforms with blenders style guide:
+     https://wiki.blender.org/wiki/Source/Code_Style
+   * test_style_c_qtc:
+     Same as test_style but outputs QtCreator tasks format
+   * test_style_osl:
+     Checks OpenShadingLanguage conforms with blenders style guide:
+     https://wiki.blender.org/wiki/Source/Code_Style
+   * test_style_osl_qtc:
+     Checks OpenShadingLanguage conforms with blenders style guide:
+     https://wiki.blender.org/wiki/Source/Code_Style

 Static Source Code Checking
   Not associated with building Blender.
@@ -108,7 +119,7 @@ Utilities
     Example
        make icons_geom BLENDER_BIN=/path/to/blender

-   * source_archive:
+   * tgz:
     Create a compressed archive of the source code.

   * update:
@@ -142,10 +153,6 @@ Information
 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:=$(shell uname -s)
@@ -157,8 +164,9 @@ CPU:=$(shell uname -m)
 BLENDER_DIR:=$(shell pwd -P)
 BUILD_TYPE:=Release

-# 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)
@@ -185,16 +193,6 @@ 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:=../lib/darwin/python/bin/python3.7m
-		ifeq (, $(shell command -v $(PYTHON)))
-			PYTHON:=python
-		endif
-	endif
-endif

 # -----------------------------------------------------------------------------
 # additional targets for the build configuration
@@ -206,52 +204,37 @@ ifneq "$(findstring debug, $(MAKECMDGOALS))" ""
 endif
 ifneq "$(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
-	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/bpy_module.cmake" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(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" $(CMAKE_CONFIG_ARGS)
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -C"$(BLENDER_DIR)/build_files/cmake/config/blender_developer.cmake"
 endif

 # -----------------------------------------------------------------------------
 # build tool

 ifneq "$(findstring ninja, $(MAKECMDGOALS))" ""
-	CMAKE_CONFIG_ARGS:=$(CMAKE_CONFIG_ARGS) -G Ninja
 	BUILD_COMMAND:=ninja
-	DEPS_BUILD_COMMAND:=ninja
+	BUILD_CMAKE_ARGS:=$(BUILD_CMAKE_ARGS) -G Ninja
 else
-	ifneq ("$(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
+	BUILD_COMMAND:=make -s
 endif

 # -----------------------------------------------------------------------------
@@ -273,10 +256,7 @@ 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
@@ -285,7 +265,7 @@ 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)
@@ -326,7 +306,6 @@ all: .FORCE
 debug: all
 full: all
 lite: all
-release: all
 cycles: all
 headless: all
 bpy: all
@@ -350,7 +329,7 @@ deps: .FORCE

 	@echo
 	@echo Building dependencies ...
-	$(DEPS_BUILD_COMMAND) -C "$(DEPS_BUILD_DIR)" -j $(NPROCS) $(DEPS_TARGET)
+	$(BUILD_COMMAND) -C "$(DEPS_BUILD_DIR)" -j $(NPROCS) $(DEPS_TARGET)
 	@echo
 	@echo Dependencies successfully built and installed to $(DEPS_INSTALL_DIR).
 	@echo
@@ -385,7 +364,7 @@ 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
@@ -401,6 +380,45 @@ test_cmake: .FORCE
 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
@@ -487,8 +505,8 @@ check_descriptions: .FORCE
 # Utilities
 #

-source_archive: .FORCE
-	./build_files/utils/make_source_archive.sh
+tgz: .FORCE
+	./build_files/utils/build_tgz.sh

 INKSCAPE_BIN?="inkscape"
 icons: .FORCE
@@ -502,11 +520,21 @@ icons_geom: .FORCE
 	    "$(BLENDER_DIR)/release/datafiles/blender_icons_geom_update.py"

 update: .FORCE
-	$(PYTHON) ./build_files/utils/make_update.py
+	if [ "$(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

 format: .FORCE
-	PATH="../lib/${OS_NCASE}_${CPU}/llvm/bin/:../lib/${OS_NCASE}_centos7_${CPU}/llvm/bin/:../lib/${OS_NCASE}/llvm/bin/:$(PATH)" \
-		$(PYTHON) source/tools/utils_maintenance/clang_format_paths.py $(PATHS)
+	PATH="../lib/${OS_NCASE}/llvm/bin/:$(PATH)" \
+		python3 source/tools/utils_maintenance/clang_format_paths.py $(PATHS)


 # -----------------------------------------------------------------------------
--- a/build_files/build_environment/CMakeLists.txt
+++ b/build_files/build_environment/CMakeLists.txt
@@ -30,7 +30,7 @@
 #   build_deps 2015 x64 / build_deps 2015 x86
 #
 # MAC OS X USAGE:
-#   Install with homebrew: brew install cmake autoconf automake libtool yasm nasm bison
+#   Install with homebrew: brew install cmake autoconf automake libtool yasm nasm
 #   Run "make deps" from main Blender directory
 #
 # LINUX USAGE:
@@ -43,23 +43,28 @@ project("BlenderDependencies")
 cmake_minimum_required(VERSION 3.5)

 include(ExternalProject)
-include(cmake/check_software.cmake)
 include(cmake/options.cmake)
 include(cmake/versions.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})
 endif()

 include(cmake/zlib.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/ilmbase.cmake)
 include(cmake/openexr.cmake)
 include(cmake/freetype.cmake)
 include(cmake/freeglut.cmake)
@@ -76,7 +81,6 @@ include(cmake/llvm.cmake)
 include(cmake/clang.cmake)
 if(APPLE)
  include(cmake/openmp.cmake)
-  include(cmake/nasm.cmake)
 endif()
 include(cmake/openimageio.cmake)
 include(cmake/tiff.cmake)
@@ -86,33 +90,29 @@ include(cmake/tbb.cmake)
 include(cmake/openvdb.cmake)
 include(cmake/python.cmake)
 include(cmake/python_site_packages.cmake)
-include(cmake/package_python.cmake)
 include(cmake/numpy.cmake)
-include(cmake/usd.cmake)
-if(UNIX)
+if(UNIX AND NOT APPLE)
  # Rely on PugiXML compiled with OpenImageIO
 else()
  include(cmake/pugixml.cmake)
 endif()
-if((NOT APPLE) OR ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
-  include(cmake/ispc.cmake)
-  include(cmake/openimagedenoise.cmake)
-  include(cmake/embree.cmake)
-endif()
-if(NOT APPLE)
-  include(cmake/xr_openxr.cmake)
-endif()

 if(WITH_WEBP)
  include(cmake/webp.cmake)
 endif()

+if(WITH_EMBREE)
+  include(cmake/embree.cmake)
+endif()
+
 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)
+  #include(cmake/lcms.cmake)

 endif()

@@ -126,10 +126,10 @@ if(NOT WIN32 OR ENABLE_MINGW64)
    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/faad.cmake)
    include(cmake/ffmpeg.cmake)
    include(cmake/fftw.cmake)
    include(cmake/sndfile.cmake)
@@ -155,9 +155,4 @@ if(UNIX)
  include(cmake/sqlite.cmake)
 endif()

-if(UNIX AND NOT APPLE)
-  include(cmake/libglu.cmake)
-  include(cmake/mesa.cmake)
-endif()
-
 include(cmake/harvest.cmake)
--- a/build_files/build_environment/cmake/alembic.cmake
+++ b/build_files/build_environment/cmake/alembic.cmake
@@ -16,6 +16,22 @@
 #
 # ***** 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 ${LIBDIR}/ilmbase)
+endif()
+
 set(ALEMBIC_EXTRA_ARGS
  -DBUILDSTATIC=ON
  -DLINKSTATIC=ON
@@ -24,18 +40,17 @@ set(ALEMBIC_EXTRA_ARGS
  -DBoost_USE_MULTITHREADED=ON
  -DUSE_STATIC_BOOST=On
  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBoost_USE_STATIC_RUNTIME=ON
  -DBoost_DEBUG=ON
  -DBOOST_ROOT=${LIBDIR}/boost
  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
-  -DILMBASE_ROOT=${LIBDIR}/openexr
-  -DALEMBIC_ILMBASE_INCLUDE_DIRECTORY=${LIBDIR}/openexr/include/OpenEXR
-  -DALEMBIC_ILMBASE_HALF_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}Half${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DALEMBIC_ILMBASE_IMATH_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}Imath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DALEMBIC_ILMBASE_ILMTHREAD_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmThread${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DALEMBIC_ILMBASE_IEX_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}Iex${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DALEMBIC_ILMBASE_IEXMATH_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}IexMath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+  -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
@@ -43,6 +58,7 @@ set(ALEMBIC_EXTRA_ARGS
  -DUSE_PRMAN=0
  -DUSE_HDF5=Off
  -DUSE_STATIC_HDF5=Off
+  -DHDF5_ROOT=${LIBDIR}/hdf5
  -DUSE_TESTS=Off
  -DALEMBIC_NO_OPENGL=1
  -DUSE_BINARIES=ON
@@ -51,6 +67,7 @@ set(ALEMBIC_EXTRA_ARGS
  -DGLUT_INCLUDE_DIR=""
  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+  ${ALEMBIC_HDF5_HL}
 )

 ExternalProject_Add(external_alembic
@@ -83,5 +100,6 @@ add_dependencies(
  external_alembic
  external_boost
  external_zlib
+  external_ilmbase
  external_openexr
 )
--- 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
@@ -29,11 +29,13 @@ set(BLOSC_EXTRA_ARGS
  -DCMAKE_POSITION_INDEPENDENT_CODE=ON
 )

-# 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
-)
+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 ${BLOSC_URI}
--- a/build_files/build_environment/cmake/boost.cmake
+++ b/build_files/build_environment/cmake/boost.cmake
@@ -29,22 +29,32 @@ if(WIN32)
    set(PYTHON_OUTPUTDIR ${BUILD_DIR}/python/src/external_python/pcbuild/win32/)
    set(BOOST_ADDRESS_MODEL 32)
  endif()
-
-  set(BOOST_TOOLSET toolset=msvc-14.1)
-  set(BOOST_COMPILER_STRING -vc141)
-
-  set(BOOST_CONFIGURE_COMMAND bootstrap.bat)
+  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)
-  set(BOOST_BUILD_OPTIONS runtime-link=shared )
+  #--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 ${LIBDIR}/boost/include/boost-${BOOST_VERSION_NODOTS_SHORT}/ ${HARVEST_TARGET}/boost/include/)
+    set(BOOST_HARVEST_CMD ${BOOST_HARVEST_CMD} && ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/include/boost-1_68/ ${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_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()
@@ -72,9 +82,7 @@ set(BOOST_OPTIONS
  --with-serialization
  --with-program_options
  --with-iostreams
-  -sNO_BZIP2=1
-  -sNO_LZMA=1
-  -sNO_ZSTD=1
+  ${BOOST_WITH_PYTHON}
  ${BOOST_TOOLSET}
 )

@@ -92,3 +100,10 @@ ExternalProject_Add(external_boost
  BUILD_IN_SOURCE 1
  INSTALL_COMMAND "${BOOST_HARVEST_CMD}"
 )
+
+if(WIN32)
+  add_dependencies(
+    external_boost
+    Make_Python_Environment
+  )
+endif()
--- a/build_files/build_environment/cmake/bzip2.cmake
+++ b/build_files/build_environment/cmake/bzip2.cmake
@@ -25,8 +25,6 @@ if(UNIX AND NOT APPLE)
  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})
 endif()

 ExternalProject_Add(external_bzip2
--- a/build_files/build_environment/cmake/check_software.cmake
+++ b/build_files/build_environment/cmake/check_software.cmake
@@ -1,66 +0,0 @@
-# ***** 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)
-  if(APPLE)
-    set(_libtoolize_name glibtoolize)
-  else()
-    set(_libtoolize_name libtoolize)
-  endif()
-
-  set(_required_software
-    autoconf
-    automake
-    ${_libtoolize_name}
-    nasm
-    yasm
-    tclsh
-    bison
-  )
-
-  foreach(_software ${_required_software})
-    find_program(_software_find NAMES ${_software})
-    if(NOT _software_find)
-      set(_software_missing "${_software_missing}${_software} ")
-    endif()
-    unset(_software_find CACHE)
-  endforeach()
-
-  if(APPLE)
-    if(NOT EXISTS "/usr/local/opt/bison/bin/bison")
-      set(_software_missing "${_software_missing} bison")
-    endif()
-  endif()
-
-  if(_software_missing)
-    message(
-      "\n"
-      "Missing software for building Blender dependencies:\n"
-      "  ${_software_missing}\n"
-      "\n"
-      "On Debian and Ubuntu:\n"
-      "  apt install autoconf automake libtool yasm nasm tcl\n"
-      "\n"
-      "On macOS (with homebrew):\n"
-      "  brew install cmake autoconf automake libtool yasm nasm bison\n"
-      "\n"
-      "Other platforms:\n"
-      "  Install equivalent packages.\n")
-    message(FATAL_ERROR "Install missing software before continuing")
-  endif()
-endif()
--- a/build_files/build_environment/cmake/clang.cmake
+++ b/build_files/build_environment/cmake/clang.cmake
@@ -19,8 +19,8 @@
 set(CLANG_EXTRA_ARGS
  -DCLANG_PATH_TO_LLVM_SOURCE=${BUILD_DIR}/ll/src/ll
  -DCLANG_PATH_TO_LLVM_BUILD=${LIBDIR}/llvm
-  -DLLVM_USE_CRT_RELEASE=MD
-  -DLLVM_USE_CRT_DEBUG=MDd
+  -DLLVM_USE_CRT_RELEASE=MT
+  -DLLVM_USE_CRT_DEBUG=MTd
  -DLLVM_CONFIG=${LIBDIR}/llvm/bin/llvm-config
 )

@@ -30,11 +30,6 @@ else()
  set(CLANG_GENERATOR "Unix Makefiles")
 endif()

-if(APPLE)
-  set(CLANG_EXTRA_ARGS ${CLANG_EXTRA_ARGS}
-    -DLIBXML2_LIBRARY=${LIBDIR}/xml2/lib/libxml2.a
-  )
-endif()

 ExternalProject_Add(external_clang
  URL ${CLANG_URI}
@@ -51,7 +46,9 @@ if(MSVC)
    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/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/ ${HARVEST_TARGET}/llvm/debug/include/
    )
  endif()
  ExternalProject_Add_Step(external_clang after_install
--- a/build_files/build_environment/cmake/embree.cmake
+++ b/build_files/build_environment/cmake/embree.cmake
@@ -26,20 +26,10 @@ set(EMBREE_EXTRA_ARGS
  -DEMBREE_RAY_MASK=ON
  -DEMBREE_FILTER_FUNCTION=ON
  -DEMBREE_BACKFACE_CULLING=OFF
+  -DEMBREE_TASKING_SYSTEM=INTERNAL
  -DEMBREE_MAX_ISA=AVX2
-  -DEMBREE_TASKING_SYSTEM=TBB
-  -DEMBREE_TBB_ROOT=${LIBDIR}/tbb
-  -DTBB_STATIC_LIB=${TBB_STATIC_LIBRARY}
 )

-if(TBB_STATIC_LIBRARY)
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_TBB_LIBRARY_NAME=tbb_static
-    -DEMBREE_TBBMALLOC_LIBRARY_NAME=tbbmalloc_static
-  )
-endif()
-
 if(WIN32)
  set(EMBREE_BUILD_DIR ${BUILD_MODE}/)
 else()
@@ -51,16 +41,9 @@ ExternalProject_Add(external_embree
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${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)
--- 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/ffmpeg.cmake
+++ b/build_files/build_environment/cmake/ffmpeg.cmake
@@ -16,10 +16,10 @@
 #
 # ***** 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")
-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")
+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:${mingw_LIBDIR}/opus/lib/pkgconfig:)
+set(FFMPEG_ENV PKG_CONFIG_PATH=${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} &&)
@@ -50,8 +50,7 @@ if(APPLE)
  set(FFMPEG_EXTRA_FLAGS
    ${FFMPEG_EXTRA_FLAGS}
    --target-os=darwin
-    --x86asmexe=${LIBDIR}/nasm/bin/nasm
-  )
+    )
 endif()

 ExternalProject_Add(external_ffmpeg
@@ -74,7 +73,6 @@ ExternalProject_Add(external_ffmpeg
    --disable-libgsm
    --disable-libspeex
    --enable-libvpx
-    --enable-libopus
    --prefix=${LIBDIR}/ffmpeg
    --enable-libtheora
    --enable-libvorbis
@@ -128,10 +126,10 @@ endif()
 add_dependencies(
  external_ffmpeg
  external_zlib
+  external_faad
  external_openjpeg
  external_xvidcore
  external_x264
-  external_opus
  external_vpx
  external_theora
  external_vorbis
@@ -144,12 +142,6 @@ if(WIN32)
    external_zlib_mingw
  )
 endif()
-if(APPLE)
-  add_dependencies(
-    external_ffmpeg
-    external_nasm
-  )
-endif()

 if(BUILD_MODE STREQUAL Release AND WIN32)
  ExternalProject_Add_Step(external_ffmpeg after_install
--- a/build_files/build_environment/cmake/fftw.cmake
+++ b/build_files/build_environment/cmake/fftw.cmake
@@ -19,12 +19,8 @@
 set(FFTW_EXTRA_ARGS)

 if(WIN32)
+  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)
-  set(FFTW_EXTRA_ARGS --disable-static --enable-shared)
-  set(FFTW_INSTALL install-strip)
-else()
-  set(FFTW_EXTRA_ARGS --enable-static)
-  set(FFTW_INSTALL install)
 endif()

 ExternalProject_Add(external_fftw3
@@ -32,10 +28,10 @@ ExternalProject_Add(external_fftw3
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${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
+  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 ${FFTW_INSTALL}
+  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make install
  INSTALL_DIR ${LIBDIR}/fftw3
 )

@@ -43,8 +39,7 @@ 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/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
    )
--- a/build_files/build_environment/cmake/freetype.cmake
+++ b/build_files/build_environment/cmake/freetype.cmake
@@ -24,8 +24,7 @@ set(FREETYPE_EXTRA_ARGS
  -DFT_WITH_HARFBUZZ=OFF
  -DFT_WITH_BZIP2=OFF
  -DCMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE
-  -DCMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE
-  -DCMAKE_DISABLE_FIND_PACKAGE_BrotliDec=TRUE)
+  -DCMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE)

 ExternalProject_Add(external_freetype
  URL ${FREETYPE_URI}
@@ -33,6 +32,7 @@ ExternalProject_Add(external_freetype
  URL_HASH MD5=${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
 )

--- a/build_files/build_environment/cmake/harvest.cmake
+++ b/build_files/build_environment/cmake/harvest.cmake
@@ -31,6 +31,10 @@ if(BUILD_MODE STREQUAL Release)
    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/ &&
@@ -40,13 +44,41 @@ if(BUILD_MODE STREQUAL Release)
        # 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/
+        ${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 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)
@@ -89,6 +121,8 @@ 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")
@@ -132,20 +166,12 @@ harvest(openimageio/bin openimageio/bin "maketx")
 harvest(openimageio/bin openimageio/bin "oiiotool")
 harvest(openimageio/include openimageio/include "*")
 harvest(openimageio/lib openimageio/lib "*.a")
-if((NOT APPLE) OR ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
-  harvest(openimagedenoise/include openimagedenoise/include "*")
-  harvest(openimagedenoise/lib openimagedenoise/lib "*.a")
-  harvest(embree/include embree/include "*.h")
-  harvest(embree/lib embree/lib "*.a")
-endif()
 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(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")
@@ -167,18 +193,11 @@ 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(webp/lib ffmpeg/lib "*.a")
 harvest(x264/lib ffmpeg/lib "*.a")
 harvest(xvidcore/lib ffmpeg/lib "*.a")
-harvest(usd/include usd/include "*.h")
-harvest(usd/lib/usd usd/lib/usd "*")
-harvest(usd/plugin usd/plugin "*")
-
-if(UNIX AND NOT APPLE)
-  harvest(libglu/lib mesa/lib "*.so*")
-  harvest(mesa/lib mesa/lib "*.so*")
-endif()
+harvest(embree/include embree/include "*.h")
+harvest(embree/lib embree/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 ${LIBDIR}/hidapi
+)
--- a/build_files/build_environment/cmake/ilmbase.cmake
+++ b/build_files/build_environment/cmake/ilmbase.cmake
@@ -0,0 +1,58 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+  set(ILMBASE_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${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 ${LIBDIR}/openexr
+  )
+endif()
--- a/build_files/build_environment/cmake/ispc.cmake
+++ b/build_files/build_environment/cmake/ispc.cmake
@@ -1,76 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-if(WIN32)
-  set(ISPC_EXTRA_ARGS_WIN
-    -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe
-    -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe
-    -DM4_EXECUTABLE=${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/m4.exe
-  )
-elseif(APPLE)
-  # Use bison installed via Homebrew.
-  # The one which comes which Xcode toolset is too old.
-  set(ISPC_EXTRA_ARGS_APPLE
-    -DBISON_EXECUTABLE=/usr/local/opt/bison/bin/bison
-  )
-elseif(UNIX)
-  set(ISPC_EXTRA_ARGS_UNIX
-    -DCMAKE_C_COMPILER=${LIBDIR}/clang/bin/clang
-    -DCMAKE_CXX_COMPILER=${LIBDIR}/clang/bin/clang++
-  )
-endif()
-
-set(ISPC_EXTRA_ARGS
-    -DARM_ENABLED=Off
-    -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=${LIBDIR}/clang/bin/clang
-    -DISPC_INCLUDE_TESTS=Off
-    -DCLANG_LIBRARY_DIR=${LIBDIR}/clang/lib
-    -DCLANG_INCLUDE_DIRS=${LIBDIR}/clang/include
-    ${ISPC_EXTRA_ARGS_WIN}
-    ${ISPC_EXTRA_ARGS_APPLE}
-    ${ISPC_EXTRA_ARGS_UNIX}
-)
-
-ExternalProject_Add(external_ispc
-  URL ${ISPC_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${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_clang
-)
-
-if(WIN32)
-  add_dependencies(
-    external_ispc
-    external_flexbison
-  )
-endif()
-
--- a/build_files/build_environment/cmake/jpeg.cmake
+++ b/build_files/build_environment/cmake/jpeg.cmake
@@ -18,7 +18,7 @@

 if(WIN32)
  # cmake for windows
-  set(JPEG_EXTRA_ARGS -DNASM=${NASM_PATH} -DWITH_JPEG8=ON  -DCMAKE_DEBUG_POSTFIX=d -DWITH_CRT_DLL=On)
+  set(JPEG_EXTRA_ARGS -DNASM=${NASM_PATH} -DWITH_JPEG8=ON  -DCMAKE_DEBUG_POSTFIX=d)

  ExternalProject_Add(external_jpeg
    URL ${JPEG_URI}
@@ -42,17 +42,20 @@ if(WIN32)
    set(JPEG_LIBRARY jpeg-staticd${LIBEXT})
  endif()
 else(WIN32)
-  # cmake for unix
-  set(JPEG_EXTRA_ARGS
-    -DWITH_JPEG8=ON
-    -DENABLE_STATIC=ON
-    -DENABLE_SHARED=OFF
-    -DCMAKE_INSTALL_LIBDIR=${LIBDIR}/jpg/lib)
+  # autoconf for unix
+  if(APPLE)
+    set(JPEG_EXTRA_ARGS --host x86_64-apple-darwin --with-jpeg8)
+  else()
+    set(JPEG_EXTRA_ARGS --with-jpeg8)
+  endif()

  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
--- a/build_files/build_environment/cmake/lcms.cmake
+++ b/build_files/build_environment/cmake/lcms.cmake
@@ -24,7 +24,7 @@ ExternalProject_Add(external_lcms
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${LCMS_HASH}
  PREFIX ${BUILD_DIR}/lcms
-  # Patch taken from ocio.
+  #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 ${LIBDIR}/lcms
--- a/build_files/build_environment/cmake/libglu.cmake
+++ b/build_files/build_environment/cmake/libglu.cmake
@@ -1,40 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(LIBGLU_CFLAGS "-static-libgcc")
-set(LIBGLU_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-set(LIBGLU_LDFLAGS "-pthread -static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-
-set(LIBGLU_EXTRA_FLAGS
-  CFLAGS=${LIBGLU_CFLAGS}
-  CXXFLAGS=${LIBGLU_CXXFLAGS}
-  LDFLAGS=${LIBGLU_LDFLAGS}
-)
-
-ExternalProject_Add(external_libglu
-  URL ${LIBGLU_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${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
@@ -16,21 +16,13 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-if(APPLE AND "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-  set(LLVM_TARGETS AArch64)
-else()
-  set(LLVM_TARGETS X86)
-endif()
-
 set(LLVM_EXTRA_ARGS
-  -DLLVM_USE_CRT_RELEASE=MD
-  -DLLVM_USE_CRT_DEBUG=MDd
+  -DLLVM_USE_CRT_RELEASE=MT
+  -DLLVM_USE_CRT_DEBUG=MTd
  -DLLVM_INCLUDE_TESTS=OFF
-  -DLLVM_TARGETS_TO_BUILD=${LLVM_TARGETS}
+  -DLLVM_TARGETS_TO_BUILD=X86
  -DLLVM_INCLUDE_EXAMPLES=OFF
  -DLLVM_ENABLE_TERMINFO=OFF
-  -DLLVM_BUILD_LLVM_C_DYLIB=OFF
-  -DLLVM_ENABLE_UNWIND_TABLES=OFF
 )

 if(WIN32)
@@ -46,7 +38,6 @@ ExternalProject_Add(ll
  URL_HASH MD5=${LLVM_HASH}
  CMAKE_GENERATOR ${LLVM_GENERATOR}
  PREFIX ${BUILD_DIR}/ll
-  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 ${LIBDIR}/llvm
 )
--- a/build_files/build_environment/cmake/mesa.cmake
+++ b/build_files/build_environment/cmake/mesa.cmake
@@ -1,54 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(MESA_CFLAGS "-static-libgcc")
-set(MESA_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
-set(MESA_LDFLAGS "-L${LIBDIR}/zlib/lib -pthread -static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a -l:libz_pic.a")
-
-set(MESA_EXTRA_FLAGS
-  CFLAGS=${MESA_CFLAGS}
-  CXXFLAGS=${MESA_CXXFLAGS}
-  LDFLAGS=${MESA_LDFLAGS}
-  --enable-glx=gallium-xlib
-  --with-gallium-drivers=swrast
-  --disable-dri
-  --disable-gbm
-  --disable-egl
-  --disable-gles1
-  --disable-gles2
-  --disable-llvm-shared-libs
-  --with-llvm-prefix=${LIBDIR}/llvm
-)
-
-ExternalProject_Add(external_mesa
-  URL ${MESA_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${MESA_HASH}
-  PREFIX ${BUILD_DIR}/mesa
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
-    cd ${BUILD_DIR}/mesa/src/external_mesa/ &&
-    ${CONFIGURE_COMMAND_NO_TARGET} --prefix=${LIBDIR}/mesa ${MESA_EXTRA_FLAGS}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa/ && make 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
@@ -1,29 +0,0 @@
-# ***** 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_nasm
-  URL ${NASM_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH SHA256=${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/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/nasm
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make install
-  INSTALL_DIR ${LIBDIR}/nasm
-)
--- a/build_files/build_environment/cmake/numpy.cmake
+++ b/build_files/build_environment/cmake/numpy.cmake
@@ -17,7 +17,6 @@
 # ***** 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)
@@ -31,6 +30,17 @@ 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 ${NUMPY_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
@@ -38,13 +48,19 @@ ExternalProject_Add(external_numpy
  PREFIX ${BUILD_DIR}/numpy
  PATCH_COMMAND ${NUMPY_PATCH}
  CONFIGURE_COMMAND ""
-  PATCH_COMMAND COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/numpy/src/external_numpy < ${PATCH_DIR}/numpy.diff
  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 ""
+  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
+  Make_Python_Environment
 )
--- a/build_files/build_environment/cmake/ogg.cmake
+++ b/build_files/build_environment/cmake/ogg.cmake
@@ -21,7 +21,6 @@ ExternalProject_Add(external_ogg
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH SHA256=${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
--- a/build_files/build_environment/cmake/openal.cmake
+++ b/build_files/build_environment/cmake/openal.cmake
@@ -52,6 +52,7 @@ if(BUILD_MODE STREQUAL Release)
    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
  )

  if(WIN32)
--- a/build_files/build_environment/cmake/opencolorio.cmake
+++ b/build_files/build_environment/cmake/opencolorio.cmake
@@ -30,13 +30,6 @@ set(OPENCOLORIO_EXTRA_ARGS
  -DOCIO_STATIC_JNIGLUE=OFF
 )

-if(APPLE AND NOT("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
-  set(OPENCOLORIO_EXTRA_ARGS
-     ${OPENCOLORIO_EXTRA_ARGS}
-     -DOCIO_USE_SSE=OFF
-  )
-endif()
-
 if(WIN32)
  set(OCIO_PATCH opencolorio_win.diff)
  set(OPENCOLORIO_EXTRA_ARGS
@@ -57,7 +50,7 @@ if(WIN32)
    -DUSE_EXTERNAL_LCMS=ON
    -DINC_1=${LIBDIR}/tinyxml/include
    -DINC_2=${LIBDIR}/yamlcpp/include
-    # Lie because ocio cmake is demanding boost even though it is not needed.
+    #lie because ocio cmake is demanding boost even though it is not needed
    -DYAML_CPP_VERSION=0.5.0
  )
 else()
@@ -102,7 +95,7 @@ if(WIN32)
    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-cppmd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp.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
    )
@@ -110,7 +103,7 @@ if(WIN32)
  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-cppmdd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp_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 ${HARVEST_TARGET}/opencolorio/lib/tinyxml_d.lib
      DEPENDEES install
    )
--- a/build_files/build_environment/cmake/openexr.cmake
+++ b/build_files/build_environment/cmake/openexr.cmake
@@ -20,45 +20,59 @@ if(WIN32)
  set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${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=${OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES}
+    -DZLIB_LIBRARY=${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
  )
-else()
-  set(OPENEXR_EXTRA_ARGS
+  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
  )
-endif()

-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
-  -DILMBASE_BUILD_BOTH_STATIC_SHARED=OFF
-  -DBUILD_SHARED_LIBS=OFF
-  -DOPENEXR_BUILD_UTILS=OFF
-  -DPYILMBASE_ENABLE=OFF
-  -DOPENEXR_VIEWERS_ENABLE=OFF
-  -DILMBASE_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
-  -DOPENEXR_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
-)
-
-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
-)
-
-if(WIN32)
  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_PKG_CONFIG_PATH ${LIBDIR}/zlib/share/pkgconfig)
+  set(OPENEXR_EXTRA_ARGS
+    --enable-static
+    --disable-shared
+    --enable-cxxstd=11
+    --with-ilmbase-prefix=${LIBDIR}/ilmbase
+    )
+
+  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_ilmbase
 )
--- a/build_files/build_environment/cmake/openimagedenoise.cmake
+++ b/build_files/build_environment/cmake/openimagedenoise.cmake
@@ -1,76 +0,0 @@
-# ***** 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(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
-)
-
-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 ${OIDN_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${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
-)
-
-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
@@ -32,7 +32,7 @@ endif()

 if(WIN32)
  set(PNG_LIBNAME libpng16_static${LIBEXT})
-  set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2)
+  set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2 -DOPJ_STATIC=1)
  set(OPENJPEG_POSTFIX _msvc)
 else()
  set(PNG_LIBNAME libpng${LIBEXT})
@@ -49,34 +49,31 @@ endif()

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

 set(OPENIMAGEIO_EXTRA_ARGS
-  -DBUILD_SHARED_LIBS=OFF
+  -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=OFF
+  -DBoost_USE_STATIC_RUNTIME=ON
  -DBOOST_ROOT=${LIBDIR}/boost
  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
  -OIIO_BUILD_CPP11=ON
-  -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_FIELD3D=OFF
@@ -84,12 +81,15 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -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_OPENCOLORIO=OFF
+  -DUSE_PYTHON=OFF
+  -DUSE_PYTHON3=OFF
+  -DUSE_OCIO=OFF
  -DUSE_WEBP=${WITH_WEBP}
  -DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
  -DOIIO_BUILD_TESTS=OFF
@@ -103,13 +103,17 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DJPEG_LIBRARY=${LIBDIR}/jpg/lib/${JPEG_LIBRARY}
  -DJPEG_INCLUDE_DIR=${LIBDIR}/jpg/include
  ${OPENJPEG_FLAGS}
+  -DOCIO_PATH=${LIBDIR}/opencolorio/
  -DOpenEXR_USE_STATIC_LIBS=On
-  -DILMBASE_INCLUDE_DIR=${LIBDIR}/openexr/include/
+  -DOPENEXR_HOME=${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_HALF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Half${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_IMATH_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Imath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -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
  ${WEBP_FLAGS}
@@ -121,38 +125,28 @@ ExternalProject_Add(external_openimageio
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${OPENIMAGEIO_HASH}
  PREFIX ${BUILD_DIR}/openimageio
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio.diff
+  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_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.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_Util.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
@@ -38,7 +38,7 @@ ExternalProject_Add(external_openjpeg
  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
--- a/build_files/build_environment/cmake/openmp.cmake
+++ b/build_files/build_environment/cmake/openmp.cmake
@@ -22,7 +22,6 @@ ExternalProject_Add(external_openmp
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${OPENMP_HASH}
  PREFIX ${BUILD_DIR}/openmp
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openmp/src/external_openmp < ${PATCH_DIR}/openmp.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openmp ${DEFAULT_CMAKE_FLAGS}
  INSTALL_COMMAND cd ${BUILD_DIR}/openmp/src/external_openmp-build && install_name_tool -id @executable_path/../Resources/lib/libomp.dylib runtime/src/libomp.dylib && make install
  INSTALL_DIR ${LIBDIR}/openmp
--- a/build_files/build_environment/cmake/opensubdiv.cmake
+++ b/build_files/build_environment/cmake/opensubdiv.cmake
@@ -36,11 +36,12 @@ if(WIN32)
  set(OPENSUBDIV_EXTRA_ARGS
    ${OPENSUBDIV_EXTRA_ARGS}
    -DTBB_INCLUDE_DIR=${LIBDIR}/tbb/include
-    -DTBB_LIBRARIES=${LIBDIR}/tbb/lib/tbb.lib
+    -DTBB_LIBRARIES=${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
@@ -67,7 +68,7 @@ endif()
 ExternalProject_Add(external_opensubdiv
  URL ${OPENSUBDIV_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${OPENSUBDIV_HASH}
+  URL_HASH MD5=${OPENSUBDIV_Hash}
  PREFIX ${BUILD_DIR}/opensubdiv
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opensubdiv -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${OPENSUBDIV_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/opensubdiv
--- a/build_files/build_environment/cmake/openvdb.cmake
+++ b/build_files/build_environment/cmake/openvdb.cmake
@@ -24,26 +24,29 @@ set(OPENVDB_EXTRA_ARGS
  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
  -DBoost_USE_MULTITHREADED=ON
  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBoost_USE_STATIC_RUNTIME=ON
  -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_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
-  -DBlosc_ROOT=${LIBDIR}/blosc/
+  -DGLEW_LOCATION=${LIBDIR}/glew/
+  -DBLOSC_LOCATION=${LIBDIR}/blosc/
+  -DTBB_LOCATION=${LIBDIR}/tbb/
  -DTBB_ROOT=${LIBDIR}/tbb/
-  -DOpenEXR_ROOT=${LIBDIR}/openexr
-  -DIlmBase_ROOT=${LIBDIR}/openexr
-  -DOPENEXR_LIBRARYDIR=${LIBDIR}/openexr/lib
-   # All libs live in openexr, even the ilmbase ones
-  -DILMBASE_LIBRARYDIR=${LIBDIR}/openexr/lib
-  -DOPENVDB_CORE_SHARED=Off
-  -DOPENVDB_BUILD_BINARIES=Off
+  -DOPENEXR_LOCATION=${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)
@@ -51,17 +54,15 @@ if(WIN32)
  # 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"
-    -DUSE_EXR=On
-  )
-else()
-  # OpenVDB can't find the _static libraries automatically.
-  set(OPENVDB_EXTRA_ARGS ${OPENVDB_EXTRA_ARGS}
-    -DTbb_LIBRARIES=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
-    -DTbb_tbb_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
-    -DTbb_tbbmalloc_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbbmalloc_static${LIBEXT}
-    -DTbb_tbbmalloc_proxy_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbbmalloc_proxy_static${LIBEXT}
+    -DOPENEXR_NAMESPACE_VERSIONING=OFF
+    -DEXTRA_LIBS:FILEPATH=${LIBDIR}/pthreads/lib/pthreadVC3.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
@@ -78,6 +79,7 @@ add_dependencies(
  openvdb
  external_tbb
  external_boost
+  external_ilmbase
  external_openexr
  external_zlib
  external_blosc
--- a/build_files/build_environment/cmake/options.cmake
+++ b/build_files/build_environment/cmake/options.cmake
@@ -17,9 +17,10 @@
 # ***** 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(WITH_WEBP "Enable building of oiio with webp support" OFF)
+option(WITH_EMBREE "Enable building of Embree" OFF)
 set(MAKE_THREADS 1 CACHE STRING "Number of threads to run make with")

 if(NOT BUILD_MODE)
@@ -45,7 +46,11 @@ message("PATCH_DIR = ${PATCH_DIR}")
 message("BUILD_DIR = ${BUILD_DIR}")

 if(WIN32)
-  set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/patch.exe)
+  if("${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 "")

@@ -57,36 +62,43 @@ if(WIN32)
  endif()
  set(COMMON_MSVC_FLAGS "${COMMON_MSVC_FLAGS} /bigobj")
  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MDd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+    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 "/MDd ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /D_DEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+    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 "/MD ${COMMON_MSVC_FLAGS} /O1 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_C_FLAGS_RELEASE "/MD ${COMMON_MSVC_FLAGS} /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "/MD ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+  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=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+    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  ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
  endif()
-  set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MD /${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 "/MD ${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 "/MD ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+  set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MT /${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(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} &&
+    call ${PERL_SHELL} &&
    set path &&
    set CFLAGS=-g &&
    set LDFLAGS=-Wl,--as-needed -static-libgcc
@@ -113,32 +125,16 @@ else()
      COMMAND xcode-select --print-path
      OUTPUT_VARIABLE XCODE_DEV_PATH OUTPUT_STRIP_TRAILING_WHITESPACE
    )
-    execute_process(
-      COMMAND xcodebuild -version -sdk macosx SDKVersion
-      OUTPUT_VARIABLE MACOSX_SDK_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-    if(NOT CMAKE_OSX_ARCHITECTURES)
-      execute_process(COMMAND uname -m OUTPUT_VARIABLE ARCHITECTURE OUTPUT_STRIP_TRAILING_WHITESPACE)
-      message(STATUS "Detected native architecture ${ARCHITECTURE}.")
-      set(CMAKE_OSX_ARCHITECTURES "${ARCHITECTURE}")
-    endif()
-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64")
-      set(OSX_DEPLOYMENT_TARGET 10.13)
-    else()
-      set(OSX_DEPLOYMENT_TARGET 11.00)
-    endif()
+    set(OSX_ARCHITECTURES x86_64)
+    set(OSX_DEPLOYMENT_TARGET 10.11)
    set(OSX_SYSROOT ${XCODE_DEV_PATH}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk)

-    set(PLATFORM_CFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -arch ${CMAKE_OSX_ARCHITECTURES}")
-    set(PLATFORM_CXXFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -std=c++11 -stdlib=libc++ -arch ${CMAKE_OSX_ARCHITECTURES}")
-    set(PLATFORM_LDFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${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_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-darwin15.0.0) # OS X 10.11
    set(PLATFORM_CMAKE_FLAGS
-      -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES}
+      -DCMAKE_OSX_ARCHITECTURES:STRING=${OSX_ARCHITECTURES}
      -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${OSX_DEPLOYMENT_TARGET}
      -DCMAKE_OSX_SYSROOT:PATH=${OSX_SYSROOT}
    )
@@ -171,7 +167,6 @@ else()

  set(CONFIGURE_ENV
    export MACOSX_DEPLOYMENT_TARGET=${OSX_DEPLOYMENT_TARGET} &&
-    export MACOSX_SDK_VERSION=${OSX_DEPLOYMENT_TARGET} &&
    export CFLAGS=${PLATFORM_CFLAGS} &&
    export CXXFLAGS=${PLATFORM_CXXFLAGS} &&
    export LDFLAGS=${PLATFORM_LDFLAGS}
@@ -195,7 +190,7 @@ set(DEFAULT_CMAKE_FLAGS
 )

 if(WIN32)
-  # We need both flavors to build the thumbnail dlls
+  #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")
--- a/build_files/build_environment/cmake/opus.cmake
+++ b/build_files/build_environment/cmake/opus.cmake
@@ -1,35 +0,0 @@
-# ***** 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_opus
-  URL ${OPUS_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH SHA256=${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
@@ -18,7 +18,7 @@

 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=${LIBDIR}/flexbison/win_bison.exe)
+  set(OSL_FLEX_BISON -DFLEX_EXECUTABLE=${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)
@@ -33,39 +33,37 @@ else()
  SET(OSL_PLATFORM_FLAGS)
 endif()

-set(OSL_ILMBASE_CUSTOM_LIBRARIES "${LIBDIR}/openexr/lib/Imath${OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/Half{OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/IlmThread${OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/Iex${OPENEXR_VERSION_POSTFIX}.lib")
+set(OSL_ILMBASE_CUSTOM_LIBRARIES "${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
  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
  -DBoost_USE_MULTITHREADED=ON
  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBoost_USE_STATIC_RUNTIME=ON
  -DBOOST_ROOT=${LIBDIR}/boost
  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
  -DLLVM_DIRECTORY=${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=${LIBDIR}/openexr/
-  -DILMBASE_INCLUDE_DIR=${LIBDIR}/openexr/include/
-  -DOPENEXR_HALF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Half${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_IMATH_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Imath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmThread${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_IEX_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Iex${OPENEXR_VERSION_POSTFIX}${LIBEXT}
+  -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}${LIBEXT}
  -DOSL_BUILD_TESTS=OFF
-  -DOSL_BUILD_MATERIALX=OFF
  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
  -DOPENIMAGEIOHOME=${LIBDIR}/openimageio/
-  -DOPENIMAGEIO_INCLUDE_DIR=${LIBDIR}/openimageio/include
  -DOPENIMAGEIO_LIBRARY=${OSL_OPENIMAGEIO_LIBRARY}
+  -DOPENIMAGEIO_INCLUDES=${LIBDIR}/openimageio/include
  ${OSL_FLEX_BISON}
  -DCMAKE_CXX_STANDARD_LIBRARIES=${OSL_CMAKE_CXX_STANDARD_LIBRARIES}
  -DBUILDSTATIC=ON
@@ -74,8 +72,6 @@ set(OSL_EXTRA_ARGS
  -DSTOP_ON_WARNING=OFF
  -DUSE_LLVM_BITCODE=OFF
  -DUSE_PARTIO=OFF
-  -DUSE_QT=OFF
-  -DINSTALL_DOCS=OFF
  ${OSL_SIMD_FLAGS}
  -DPARTIO_LIBRARIES=
 )
@@ -110,13 +106,14 @@ add_dependencies(
  external_boost
  ll
  external_clang
+  external_ilmbase
  external_openexr
  external_zlib
  external_flexbison
  external_openimageio
 )

-if(UNIX)
+if(UNIX AND NOT APPLE)
  # Rely on PugiXML compiled with OpenImageIO
 else()
  add_dependencies(
--- a/build_files/build_environment/cmake/package_python.cmake
+++ b/build_files/build_environment/cmake/package_python.cmake
@@ -1,60 +0,0 @@
-# ***** 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)
-  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 ouput 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 ouput 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
@@ -22,14 +22,10 @@ set(PNG_EXTRA_ARGS
  -DPNG_STATIC=ON
 )

-if(APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64"))
-  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 ${PNG_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH SHA256=${PNG_HASH}
+  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
--- a/build_files/build_environment/cmake/pthreads.cmake
+++ b/build_files/build_environment/cmake/pthreads.cmake
@@ -24,7 +24,7 @@ if(WIN32)
      set(PTHREAD_CPPFLAGS "/I. /DHAVE_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 ${BUILD_DIR}/pthreads/src/external_pthreads/ && cd && nmake VC-static /e CPPFLAGS=${PTHREAD_CPPFLAGS} /e XLIBS=/NODEFAULTLIB:msvcr)

    ExternalProject_Add(external_pthreads
      URL ${PTHREADS_URI}
@@ -32,7 +32,6 @@ if(WIN32)
      URL_HASH MD5=${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} &&
--- a/build_files/build_environment/cmake/python.cmake
+++ b/build_files/build_environment/cmake/python.cmake
@@ -19,13 +19,17 @@
 set(PYTHON_POSTFIX)
 if(BUILD_MODE STREQUAL Debug)
  set(PYTHON_POSTFIX _d)
-  set(PYTHON_EXTRA_INSTLAL_FLAGS -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 ${BUILD_DIR}/python/src/external_python/)
+  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+    set(SSL_POSTFIX -x64)
+  else()
+    set(SSL_POSTFIX)
+  endif()
+
+  set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe)
+
  macro(cmake_to_dos_path MsysPath ResultingPath)
    string(REPLACE "/" "\\" ${ResultingPath} "${MsysPath}")
  endmacro()
@@ -36,24 +40,34 @@ if(WIN32)
  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 ${PYTHON_BINARY_INTERNAL} ${PYTHON_SRC}/PC/layout/main.py -b ${PYTHON_SRC}/PCbuild/amd64 -s ${PYTHON_SRC} -t ${PYTHON_SRC}/tmp/  --include-underpth --include-stable --include-pip --include-dev --include-launchers  --include-venv --include-symbols ${PYTHON_EXTRA_INSTLAL_FLAGS} --copy ${LIBDIR}/python
+    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 = ${PYTHON_OUTPUTDIR}")
 else()
  if(APPLE)
-    # Disable functions that can be in 10.13 sdk but aren't available on 10.9 target.
-    #
-    # Disable libintl (gettext library) as it might come from Homebrew, which makes
-    # it so test program compiles, but the Python does not. This is because for Python
-    # we use isysroot, which seems to forbid using libintl.h.
-    # The gettext functionality seems to come from CoreFoundation, so should be all fine.
+    # disable functions that can be in 10.13 sdk but aren't available on 10.9 target
    set(PYTHON_FUNC_CONFIGS
      export ac_cv_func_futimens=no &&
      export ac_cv_func_utimensat=no &&
@@ -65,21 +79,13 @@ else()
      export ac_cv_func_getentropy=no &&
      export ac_cv_func_mkostemp=no &&
      export ac_cv_func_mkostemps=no &&
-      export ac_cv_func_timingsafe_bcmp=no &&
-      export ac_cv_header_libintl_h=no &&
-      export ac_cv_lib_intl_textdomain=no
-    )
-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-      set(PYTHON_FUNC_CONFIGS ${PYTHON_FUNC_CONFIGS} && export PYTHON_DECIMAL_WITH_MACHINE=ansi64)
-    endif()
+      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)
-    set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_macos.diff)
  else()
    set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV})
    set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python)
-    set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_linux.diff)
- endif()
+  endif()

  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${LIBDIR}/zlib/include")
@@ -89,6 +95,7 @@ else()
    export CPPFLAGS=${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}
@@ -100,6 +107,65 @@ else()
    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 ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/sqlite3${PYTHON_POSTFIX}.dll" ${BUILD_DIR}/python/src/external_python/redist/lib/sqlite3${PYTHON_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)
--- a/build_files/build_environment/cmake/python_site_packages.cmake
+++ b/build_files/build_environment/cmake/python_site_packages.cmake
@@ -15,16 +15,27 @@
 # 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(HARVEST_CMD echo .)
+endif()

 ExternalProject_Add(external_python_site_packages
  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:
+  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}
 )

 add_dependencies(
  external_python_site_packages
-  external_python
+  Make_Python_Environment
 )
--- 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
@@ -19,7 +19,7 @@
 ####################################################################################################################
 # 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 = ${LIBDIR}")
@@ -128,14 +128,6 @@ if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (NOT EXISTS "$
  )
 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  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
-  )
-endif()
-
 message("Checking for CoreUtils")
 # download old core_utils for pr.exe (ffmpeg needs it to build)
 if(NOT EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
--- a/build_files/build_environment/cmake/sndfile.cmake
+++ b/build_files/build_environment/cmake/sndfile.cmake
@@ -21,7 +21,7 @@ set(SNDFILE_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR

 if(WIN32)
  set(SNDFILE_ENV set ${SNDFILE_ENV} &&)
-  # Shared for windows because static libs will drag in a libgcc dependency.
+  #shared for windows because static libs will drag in a libgcc dependency.
  set(SNDFILE_OPTIONS --disable-static --enable-shared )
 else()
  set(SNDFILE_OPTIONS --enable-static --disable-shared )
@@ -60,14 +60,3 @@ if(UNIX)
    external_flac
  )
 endif()
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_sndfile after_install
-      COMMAND  lib /def:${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
-  )
-endif()
--- a/build_files/build_environment/cmake/sqlite.cmake
+++ b/build_files/build_environment/cmake/sqlite.cmake
@@ -19,10 +19,8 @@
 set(SQLITE_CONFIGURE_ENV echo .)
 set(SQLITE_CONFIGURATION_ARGS)

-if(UNIX)
-  if(NOT APPLE)
-    set(SQLITE_LDFLAGS -Wl,--as-needed)
-  endif()
+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 \
@@ -51,7 +49,7 @@ ExternalProject_Add(external_sqlite
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH SHA1=${SQLITE_HASH}
  PREFIX ${BUILD_DIR}/sqlite
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/sqlite/src/external_sqlite < ${PATCH_DIR}/sqlite.diff
+  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
--- a/build_files/build_environment/cmake/ssl.cmake
+++ b/build_files/build_environment/cmake/ssl.cmake
@@ -20,7 +20,7 @@ set(SSL_CONFIGURE_COMMAND ./Configure)
 set(SSL_PATCH_CMD echo .)

 if(APPLE)
-   set(SSL_OS_COMPILER "blender-darwin-${CMAKE_OSX_ARCHITECTURES}")
+  set(SSL_OS_COMPILER "blender-darwin-x86_64")
 else()
  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
    set(SSL_EXTRA_ARGS enable-ec_nistp_64_gcc_128)
--- a/build_files/build_environment/cmake/ssl.conf
+++ b/build_files/build_environment/cmake/ssl.conf
@@ -1,4 +1,4 @@
-my %targets = (
+%targets = (

  "blender-linux-x86" => {
    inherit_from     => [ "linux-x86" ],
@@ -12,9 +12,4 @@ my %targets = (
    inherit_from     => [ "darwin64-x86_64-cc" ],
    cflags => add("-fPIC"),
  },
-  "blender-darwin-arm64" => {
-    inherit_from     => [ "darwin-common" ],
-    cxxflags => add("-fPIC -arch arm64"),
-    cflags => add("-fPIC -arch arm64"),
-  },
 );
--- a/build_files/build_environment/cmake/tbb.cmake
+++ b/build_files/build_environment/cmake/tbb.cmake
@@ -15,25 +15,13 @@
 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 #
 # ***** END GPL LICENSE BLOCK *****
-if(WIN32)
-  set(TBB_EXTRA_ARGS
-    -DTBB_BUILD_SHARED=On
-    -DTBB_BUILD_TBBMALLOC=On
-    -DTBB_BUILD_TBBMALLOC_PROXY=On
-    -DTBB_BUILD_STATIC=Off
-  )
-  set(TBB_LIBRARY tbb)
-  set(TBB_STATIC_LIBRARY Off)
-else()
-  set(TBB_EXTRA_ARGS
-    -DTBB_BUILD_SHARED=Off
-    -DTBB_BUILD_TBBMALLOC=On
-    -DTBB_BUILD_TBBMALLOC_PROXY=Off
-    -DTBB_BUILD_STATIC=On
-  )
-  set(TBB_LIBRARY tbb_static)
-  set(TBB_STATIC_LIBRARY On)
-endif()
+
+set(TBB_EXTRA_ARGS
+  -DTBB_BUILD_SHARED=Off
+  -DTBB_BUILD_TBBMALLOC=Off
+  -DTBB_BUILD_TBBMALLOC_PROXY=Off
+  -DTBB_BUILD_STATIC=On
+)

 # CMake script for TBB from https://github.com/wjakob/tbb/blob/master/CMakeLists.txt
 ExternalProject_Add(external_tbb
@@ -50,34 +38,14 @@ ExternalProject_Add(external_tbb
 if(WIN32)
  if(BUILD_MODE STREQUAL Release)
    ExternalProject_Add_Step(external_tbb after_install
-      # findtbb.cmake in some deps *NEEDS* to find tbb_debug.lib even if they are not going to use it
-      # to make that test pass, we place a copy with the right name in the lib folder.
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.lib ${HARVEST_TARGET}/tbb/lib/tbb_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.dll ${HARVEST_TARGET}/tbb/lib/tbb_debug.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc_debug.dll
-      # Normal collection of build artifacts
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.lib ${HARVEST_TARGET}/tbb/lib/tbb.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.dll ${HARVEST_TARGET}/tbb/lib/tbb.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_static.lib ${HARVEST_TARGET}/tbb/lib/tbb.lib
      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tbb/include/ ${HARVEST_TARGET}/tbb/include/
      DEPENDEES install
    )
  endif()
  if(BUILD_MODE STREQUAL Debug)
    ExternalProject_Add_Step(external_tbb after_install
-      # findtbb.cmake in some deps *NEEDS* to find tbb.lib even if they are not going to use it
-      # to make that test pass, we place a copy with the right name in the lib folder.
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.lib ${LIBDIR}/tbb/lib/tbb.lib
-      # Normal collection of build artifacts
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.lib ${HARVEST_TARGET}/tbb/lib/debug/tbb_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.dll ${HARVEST_TARGET}/tbb/lib/debug/tbb_debug.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/debug/tbbmalloc.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.dll ${HARVEST_TARGET}/tbb/lib/debug/tbbmalloc_proxy.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_static.lib ${HARVEST_TARGET}/tbb/lib/tbb_debug.lib
      DEPENDEES install
    )
  endif()
--- a/build_files/build_environment/cmake/theora.cmake
+++ b/build_files/build_environment/cmake/theora.cmake
@@ -16,7 +16,7 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-if(UNIX)
+if (UNIX)
  set(THEORA_CONFIGURE_ENV ${CONFIGURE_ENV} && export HAVE_PDFLATEX=no)
 else()
  set(THEORA_CONFIGURE_ENV ${CONFIGURE_ENV})
@@ -27,7 +27,6 @@ ExternalProject_Add(external_theora
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH SHA256=${THEORA_HASH}
  PREFIX ${BUILD_DIR}/theora
-  PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/theora/src/external_theora < ${PATCH_DIR}/theora.diff
  CONFIGURE_COMMAND ${THEORA_CONFIGURE_ENV} && cd ${BUILD_DIR}/theora/src/external_theora/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/theora
    --disable-shared
    --enable-static
--- a/build_files/build_environment/cmake/tiff.cmake
+++ b/build_files/build_environment/cmake/tiff.cmake
@@ -16,12 +16,6 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-if(WITH_WEBP)
-  set(WITH_TIFF_WEBP ON)
-else()
-  set(WITH_TIFF_WEBP OFF)
-endif()
-
 set(TIFF_EXTRA_ARGS
  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
@@ -29,8 +23,6 @@ set(TIFF_EXTRA_ARGS
  -DBUILD_SHARED_LIBS=OFF
  -Dlzma=OFF
  -Djbig=OFF
-  -Dzstd=OFF
-  -Dwebp=${WITH_TIFF_WEBP}
 )

 ExternalProject_Add(external_tiff
--- a/build_files/build_environment/cmake/tinyxml.cmake
+++ b/build_files/build_environment/cmake/tinyxml.cmake
@@ -24,7 +24,7 @@ ExternalProject_Add(external_tinyxml
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH MD5=${TINYXML_HASH}
  PREFIX ${BUILD_DIR}/tinyxml
-  # patch taken from ocio
+  #patch taken from ocio
  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/tinyxml/src/external_tinyxml < ${PATCH_DIR}/tinyxml.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tinyxml ${DEFAULT_CMAKE_FLAGS} ${TINYXML_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/tinyxml
--- a/build_files/build_environment/cmake/usd.cmake
+++ b/build_files/build_environment/cmake/usd.cmake
@@ -1,106 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(USD_EXTRA_ARGS
-  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
-  -DBoost_USE_MULTITHREADED=ON
-  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
-  -DBOOST_ROOT=${LIBDIR}/boost
-  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
-  -DTBB_INCLUDE_DIRS=${LIBDIR}/tbb/include
-  -DTBB_LIBRARIES=${LIBDIR}/tbb/lib/${LIBPREFIX}${TBB_LIBRARY}${LIBEXT}
-  -DTbb_TBB_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}${TBB_LIBRARY}${LIBEXT}
-  # USD wants the tbb debug lib set even when you are doing a release build
-  # Otherwise it will error out during the cmake configure phase.
-  -DTBB_LIBRARIES_DEBUG=${LIBDIR}/tbb/lib/${LIBPREFIX}${TBB_LIBRARY}${LIBEXT}
-
-  # This is a preventative measure that avoids possible conflicts when add-ons
-  # try to load another USD library into the same process space.
-  -DPXR_SET_INTERNAL_NAMESPACE=usdBlender
-
-  -DPXR_ENABLE_PYTHON_SUPPORT=OFF
-  -DPXR_BUILD_IMAGING=OFF
-  -DPXR_BUILD_TESTS=OFF
-  -DBUILD_SHARED_LIBS=OFF
-  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
-  -DPXR_BUILD_MONOLITHIC=ON
-
-  # The PXR_BUILD_USD_TOOLS argument is patched-in by usd.diff. An upstream pull request
-  # can be found at https://github.com/PixarAnimationStudios/USD/pull/1048.
-  -DPXR_BUILD_USD_TOOLS=OFF
-
-  -DCMAKE_DEBUG_POSTFIX=_d
-  # USD is hellbound on making a shared lib, unless you point this variable to a valid cmake file
-  # doesn't have to make sense, but as long as it points somewhere valid it will skip the shared lib.
-  -DPXR_MONOLITHIC_IMPORT=${BUILD_DIR}/usd/src/external_usd/cmake/defaults/Version.cmake
-)
-
-ExternalProject_Add(external_usd
-  URL ${USD_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${USD_HASH}
-  PREFIX ${BUILD_DIR}/usd
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/usd/src/external_usd < ${PATCH_DIR}/usd.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/usd -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${USD_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/usd
-)
-
-add_dependencies(
-  external_usd
-  external_tbb
-  external_boost
-)
-
-if(WIN32)
-  # USD currently demands python be available at build time
-  # and then proceeds not to use it, but still checks that the
-  # version of the interpreter it is not going to use is atleast 2.7
-  # so we need this dep currently since there is no system python
-  # on windows.
-  add_dependencies(
-    external_usd
-    external_python
-  )
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_usd after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/usd/ ${HARVEST_TARGET}/usd
-      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/Release/usd_m.lib ${HARVEST_TARGET}/usd/lib/libusd_m.lib
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_usd after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/usd/lib ${HARVEST_TARGET}/usd/lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/Debug/usd_m_d.lib ${HARVEST_TARGET}/usd/lib/libusd_m_d.lib
-      DEPENDEES install
-    )
-  endif()
-else()
-  # USD has two build options. The default build creates lots of small libraries,
-  # whereas the 'monolithic' build produces only a single library. The latter
-  # makes linking simpler, so that's what we use in Blender. However, running
-  # 'make install' in the USD sources doesn't install the static library in that
-  # case (only the shared library). As a result, we need to grab the `libusd_m.a`
-  # file from the build directory instead of from the install directory.
-  ExternalProject_Add_Step(external_usd after_install
-    COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/libusd_m.a ${HARVEST_TARGET}/usd/lib/libusd_m.a
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/versions.cmake
+++ b/build_files/build_environment/cmake/versions.cmake
@@ -20,55 +20,59 @@ set(ZLIB_VERSION 1.2.11)
 set(ZLIB_URI https://zlib.net/zlib-${ZLIB_VERSION}.tar.gz)
 set(ZLIB_HASH 1c9f62f0778697a09d36121ead88e08e)

-set(OPENAL_VERSION 1.20.1)
+set(OPENAL_VERSION 1.18.2)
 set(OPENAL_URI http://openal-soft.org/openal-releases/openal-soft-${OPENAL_VERSION}.tar.bz2)
-set(OPENAL_HASH 556695068ce8375b89986083d810fd35)
+set(OPENAL_HASH d4eeb0889812e2fdeaa1843523d76190)

-set(PNG_VERSION 1.6.37)
+set(PNG_VERSION 1.6.35)
 set(PNG_URI http://prdownloads.sourceforge.net/libpng/libpng-${PNG_VERSION}.tar.xz)
-set(PNG_HASH 505e70834d35383537b6491e7ae8641f1a4bed1876dbfe361201fc80868d88ca)
+set(PNG_HASH 678b7e696a62a193ed3503b04bf449d6)

-set(JPEG_VERSION 2.0.4)
+set(JPEG_VERSION 1.5.3)
 set(JPEG_URI https://github.com/libjpeg-turbo/libjpeg-turbo/archive/${JPEG_VERSION}.tar.gz)
-set(JPEG_HASH 44c43e4a9fb352f47090804529317c88)
+set(JPEG_HASH 5b7549d440b86c98a517355c102d155e)

-set(BOOST_VERSION 1.70.0)
-set(BOOST_VERSION_NODOTS 1_70_0)
-set(BOOST_VERSION_NODOTS_SHORT 1_70)
+set(BOOST_VERSION 1.68.0)
+set(BOOST_VERSION_NODOTS 1_68_0)
 set(BOOST_URI https://dl.bintray.com/boostorg/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION_NODOTS}.tar.gz)
-set(BOOST_HASH fea771fe8176828fabf9c09242ee8c26)
+set(BOOST_HASH 5d8b4503582fffa9eefdb9045359c239)

-# Using old version as recommended by OpenVDB build documentation.
-set(BLOSC_VERSION 1.5.0)
+set(BLOSC_VERSION 1.14.4)
 set(BLOSC_URI https://github.com/Blosc/c-blosc/archive/v${BLOSC_VERSION}.tar.gz)
-set(BLOSC_HASH 6e4a49c8c06f05aa543f3312cfce3d55)
+set(BLOSC_HASH e80dfc71e4cba03b8d01ed0876547ffe)

 set(PTHREADS_VERSION 3.0.0)
 set(PTHREADS_URI http://sourceforge.mirrorservice.org/p/pt/pthreads4w/pthreads4w-code-v${PTHREADS_VERSION}.zip)
 set(PTHREADS_HASH f3bf81bb395840b3446197bcf4ecd653)

-set(OPENEXR_VERSION 2.4.0)
-set(OPENEXR_URI https://github.com/AcademySoftwareFoundation/openexr/archive/v${OPENEXR_VERSION}.tar.gz)
-set(OPENEXR_HASH 9e4d69cf2a12c6fb19b98af7c5e0eaee)
+set(ILMBASE_VERSION 2.3.0)
 if(WIN32)
-  # Openexr started appending _d on its own so now
-  # we need to tell the build the postfix is _s while
-  # telling all other deps the postfix is _s_d
  if(BUILD_MODE STREQUAL Release)
+    set(ILMBASE_VERSION_POSTFIX _s)
    set(OPENEXR_VERSION_POSTFIX _s)
-    set(OPENEXR_VERSION_BUILD_POSTFIX _s)
  else()
+    set(ILMBASE_VERSION_POSTFIX _s_d)
    set(OPENEXR_VERSION_POSTFIX _s_d)
-    set(OPENEXR_VERSION_BUILD_POSTFIX _s)
  endif()
 else()
-  set(OPENEXR_VERSION_BUILD_POSTFIX)
+  set(ILMBASE_VERSION_POSTFIX)
+endif()
+set(ILMBASE_URI https://github.com/openexr/openexr/releases/download/v${ILMBASE_VERSION}/ilmbase-${ILMBASE_VERSION}.tar.gz)
+set(ILMBASE_HASH 354bf86de3b930ab87ac63619d60c860)
+
+set(OPENEXR_VERSION 2.3.0)
+if(WIN32) #release 2.3.0 tarball has broken cmake support
+  set(OPENEXR_URI https://github.com/openexr/openexr/archive/0ac2ea34c8f3134148a5df4052e40f155b76f6fb.tar.gz)
+  set(OPENEXR_HASH ed159435d508240712fbaaa21d94bafb)
+else()
  set(OPENEXR_VERSION_POSTFIX)
+  set(OPENEXR_URI https://github.com/openexr/openexr/releases/download/v${OPENEXR_VERSION}/openexr-${OPENEXR_VERSION}.tar.gz)
+  set(OPENEXR_HASH a157e8a46596bc185f2472a5a4682174)
 endif()

-set(FREETYPE_VERSION 2.10.2)
+set(FREETYPE_VERSION 2.9.1)
 set(FREETYPE_URI http://prdownloads.sourceforge.net/freetype/freetype-${FREETYPE_VERSION}.tar.gz)
-set(FREETYPE_HASH b1cb620e4c875cd4d1bfa04945400945)
+set(FREETYPE_HASH 3adb0e35d3c100c456357345ccfa8056)

 set(GLEW_VERSION 1.13.0)
 set(GLEW_URI http://prdownloads.sourceforge.net/glew/glew/${GLEW_VERSION}/glew-${GLEW_VERSION}.tgz)
@@ -78,95 +82,99 @@ set(FREEGLUT_VERSION 3.0.0)
 set(FREEGLUT_URI http://pilotfiber.dl.sourceforge.net/project/freeglut/freeglut/${FREEGLUT_VERSION}/freeglut-${FREEGLUT_VERSION}.tar.gz)
 set(FREEGLUT_HASH 90c3ca4dd9d51cf32276bc5344ec9754)

-set(ALEMBIC_VERSION 1.7.12)
-set(ALEMBIC_URI https://github.com/alembic/alembic/archive/${ALEMBIC_VERSION}.tar.gz)
-set(ALEMBIC_MD5 e2b3777f23c5c09481a008cc6f0f8a40)
+set(HDF5_VERSION 1.8.17)
+set(HDF5_URI https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-${HDF5_VERSION}/src/hdf5-${HDF5_VERSION}.tar.gz)
+set(HDF5_HASH 7d572f8f3b798a628b8245af0391a0ca)

-# hash is for 3.1.2
+set(ALEMBIC_VERSION 1.7.8)
+set(ALEMBIC_URI https://github.com/alembic/alembic/archive/${ALEMBIC_VERSION}.tar.gz)
+set(ALEMBIC_MD5 d095c2feb5e183b824904db7b63c1d30)
+
+## hash is for 3.1.2
 set(GLFW_GIT_UID 30306e54705c3adae9fe082c816a3be71963485c)
 set(GLFW_URI https://github.com/glfw/glfw/archive/${GLFW_GIT_UID}.zip)
 set(GLFW_HASH 20cacb1613da7eeb092f3ac4f6b2b3d0)

-# latest uid in git as of 2016-04-01
+#latest uid in git as of 2016-04-01
 set(CLEW_GIT_UID 277db43f6cafe8b27c6f1055f69dc67da4aeb299)
 set(CLEW_URI https://github.com/OpenCLWrangler/clew/archive/${CLEW_GIT_UID}.zip)
 set(CLEW_HASH 2c699d10ed78362e71f56fae2a4c5f98)

-# latest uid in git as of 2016-04-01
+#latest uid in git as of 2016-04-01
 set(CUEW_GIT_UID 1744972026de9cf27c8a7dc39cf39cd83d5f922f)
 set(CUEW_URI https://github.com/CudaWrangler/cuew/archive/${CUEW_GIT_UID}.zip)
 set(CUEW_HASH 86760d62978ebfd96cd93f5aa1abaf4a)

-set(OPENSUBDIV_VERSION v3_4_3)
+set(OPENSUBDIV_VERSION v3_4_0_RC2)
+set(OPENSUBDIV_Hash f6a10ba9efaa82fde86fe65aad346319)
 set(OPENSUBDIV_URI https://github.com/PixarAnimationStudios/OpenSubdiv/archive/${OPENSUBDIV_VERSION}.tar.gz)
-set(OPENSUBDIV_HASH 7bbfa275d021fb829e521df749160edb)

-set(SDL_VERSION 2.0.12)
+set(SDL_VERSION 2.0.8)
 set(SDL_URI https://www.libsdl.org/release/SDL2-${SDL_VERSION}.tar.gz)
-set(SDL_HASH 783b6f2df8ff02b19bb5ce492b99c8ff)
+set(SDL_HASH 3800d705cef742c6a634f202c37f263f)

 set(OPENCOLLADA_VERSION v1.6.68)
 set(OPENCOLLADA_URI https://github.com/KhronosGroup/OpenCOLLADA/archive/${OPENCOLLADA_VERSION}.tar.gz)
 set(OPENCOLLADA_HASH ee7dae874019fea7be11613d07567493)

-set(OPENCOLORIO_VERSION 1.1.1)
-set(OPENCOLORIO_URI https://github.com/AcademySoftwareFoundation/OpenColorIO/archive/v${OPENCOLORIO_VERSION}.tar.gz)
-set(OPENCOLORIO_HASH 23d8b9ac81599305539a5a8674b94a3d)
+set(OPENCOLORIO_VERSION 1.1.0)
+set(OPENCOLORIO_URI https://github.com/imageworks/OpenColorIO/archive/v${OPENCOLORIO_VERSION}.tar.gz)
+set(OPENCOLORIO_HASH 802d8f5b1d1fe316ec5f76511aa611b8)

-set(LLVM_VERSION 9.0.1)
-set(LLVM_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz)
-set(LLVM_HASH 31eb9ce73dd2a0f8dcab8319fb03f8fc)
+set(LLVM_VERSION 6.0.1)
+set(LLVM_URI http://releases.llvm.org/${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz)
+set(LLVM_HASH c88c98709300ce2c285391f387fecce0)

-set(CLANG_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/clang-${LLVM_VERSION}.src.tar.xz)
-set(CLANG_HASH 13468e4a44940efef1b75e8641752f90)
+set(CLANG_URI http://releases.llvm.org/${LLVM_VERSION}/cfe-${LLVM_VERSION}.src.tar.xz)
+set(CLANG_HASH 4e419bd4e3b55aa06d872320f754bd85)

-set(OPENMP_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/openmp-${LLVM_VERSION}.src.tar.xz)
-set(OPENMP_HASH 6eade16057edbdecb3c4eef9daa2bfcf)
+set(OPENMP_URI http://releases.llvm.org/${LLVM_VERSION}/openmp-${LLVM_VERSION}.src.tar.xz)
+set(OPENMP_HASH 4826402ae3633c36c51ba4d0e5527d30)

-set(OPENIMAGEIO_VERSION 2.1.15.0)
+set(OPENIMAGEIO_VERSION 1.8.13)
 set(OPENIMAGEIO_URI https://github.com/OpenImageIO/oiio/archive/Release-${OPENIMAGEIO_VERSION}.tar.gz)
-set(OPENIMAGEIO_HASH f03aa5e3ac4795af04771ee4146e9832)
+set(OPENIMAGEIO_HASH f5526c3c9878029ee900d84856683f93)

-set(TIFF_VERSION 4.1.0)
+set(TIFF_VERSION 4.0.9)
 set(TIFF_URI http://download.osgeo.org/libtiff/tiff-${TIFF_VERSION}.tar.gz)
-set(TIFF_HASH 2165e7aba557463acc0664e71a3ed424)
+set(TIFF_HASH 54bad211279cc93eb4fca31ba9bfdc79)

-set(OSL_VERSION 1.10.10)
+set(OSL_VERSION 1.9.9)
 set(OSL_URI https://github.com/imageworks/OpenShadingLanguage/archive/Release-${OSL_VERSION}.tar.gz)
-set(OSL_HASH 00dec08a93c8084e53848b9ad047889f)
+set(OSL_HASH 44ad511e424965a10fce051a053b0605)

-set(PYTHON_VERSION 3.7.7)
+set(PYTHON_VERSION 3.7.4)
 set(PYTHON_SHORT_VERSION 3.7)
 set(PYTHON_SHORT_VERSION_NO_DOTS 37)
 set(PYTHON_URI https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz)
-set(PYTHON_HASH 172c650156f7bea68ce31b2fd01fa766)
+set(PYTHON_HASH d33e4aae66097051c2eca45ee3604803)

-set(TBB_VERSION 2019_U9)
-set(TBB_URI https://github.com/oneapi-src/oneTBB/archive/${TBB_VERSION}.tar.gz)
-set(TBB_HASH 26263622e9187212ec240dcf01b66207)
+set(TBB_VERSION 2018_U5)
+set(TBB_URI https://github.com/01org/tbb/archive/${TBB_VERSION}.tar.gz)
+set(TBB_HASH ff3ae09f8c23892fbc3008c39f78288f)

-set(OPENVDB_VERSION 7.0.0)
+set(OPENVDB_VERSION 5.1.0)
 set(OPENVDB_URI https://github.com/dreamworksanimation/openvdb/archive/v${OPENVDB_VERSION}.tar.gz)
-set(OPENVDB_HASH fd6c4f168282f7e0e494d290cd531fa8)
+set(OPENVDB_HASH 5310101f874dcfd2165f9cee68c22624)

-set(IDNA_VERSION 2.9)
+set(IDNA_VERSION 2.7)
 set(CHARDET_VERSION 3.0.4)
-set(URLLIB3_VERSION 1.25.9)
-set(CERTIFI_VERSION 2020.4.5.2)
-set(REQUESTS_VERSION 2.23.0)
+set(URLLIB3_VERSION 1.23)
+set(CERTIFI_VERSION 2018.8.13)
+set(REQUESTS_VERSION 2.19.1)

-set(NUMPY_VERSION 1.17.5)
-set(NUMPY_SHORT_VERSION 1.17)
-set(NUMPY_URI https://github.com/numpy/numpy/releases/download/v${NUMPY_VERSION}/numpy-${NUMPY_VERSION}.zip)
-set(NUMPY_HASH 763a5646fa6eef7a22f4895bca0524f2)
+set(NUMPY_VERSION v1.15.0)
+set(NUMPY_SHORT_VERSION 1.15)
+set(NUMPY_URI https://files.pythonhosted.org/packages/3a/20/c81632328b1a4e1db65f45c0a1350a9c5341fd4bbb8ea66cdd98da56fe2e/numpy-1.15.0.zip)
+set(NUMPY_HASH 20e13185089011116a98e11c9bf8aa07)

 set(LAME_VERSION 3.100)
 set(LAME_URI http://downloads.sourceforge.net/project/lame/lame/3.100/lame-${LAME_VERSION}.tar.gz)
 set(LAME_HASH 83e260acbe4389b54fe08e0bdbf7cddb)

-set(OGG_VERSION 1.3.4)
+set(OGG_VERSION 1.3.3)
 set(OGG_URI http://downloads.xiph.org/releases/ogg/libogg-${OGG_VERSION}.tar.gz)
-set(OGG_HASH fe5670640bd49e828d64d2879c31cb4dde9758681bb664f9bdbf159a01b0c76e)
+set(OGG_HASH c2e8a485110b97550f453226ec644ebac6cb29d1caef2902c007edab4308d985)

 set(VORBIS_VERSION 1.3.6)
 set(VORBIS_URI http://downloads.xiph.org/releases/vorbis/libvorbis-${VORBIS_VERSION}.tar.gz)
@@ -176,49 +184,55 @@ set(THEORA_VERSION 1.1.1)
 set(THEORA_URI http://downloads.xiph.org/releases/theora/libtheora-${THEORA_VERSION}.tar.bz2)
 set(THEORA_HASH b6ae1ee2fa3d42ac489287d3ec34c5885730b1296f0801ae577a35193d3affbc)

-set(FLAC_VERSION 1.3.3)
+set(FLAC_VERSION 1.3.2)
 set(FLAC_URI http://downloads.xiph.org/releases/flac/flac-${FLAC_VERSION}.tar.xz)
-set(FLAC_HASH 213e82bd716c9de6db2f98bcadbc4c24c7e2efe8c75939a1a84e28539c4e1748)
+set(FLAC_HASH 91cfc3ed61dc40f47f050a109b08610667d73477af6ef36dcad31c31a4a8d53f)

-set(VPX_VERSION 1.8.2)
+set(VPX_VERSION 1.7.0)
 set(VPX_URI https://github.com/webmproject/libvpx/archive/v${VPX_VERSION}/libvpx-v${VPX_VERSION}.tar.gz)
-set(VPX_HASH 8735d9fcd1a781ae6917f28f239a8aa358ce4864ba113ea18af4bb2dc8b474ac)
+set(VPX_HASH 1fec931eb5c94279ad219a5b6e0202358e94a93a90cfb1603578c326abfc1238)

-set(OPUS_VERSION 1.3.1)
-set(OPUS_URI https://archive.mozilla.org/pub/opus/opus-${OPUS_VERSION}.tar.gz)
-set(OPUS_HASH 65b58e1e25b2a114157014736a3d9dfeaad8d41be1c8179866f144a2fb44ff9d)
+set(X264_URI http://download.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20180811-2245-stable.tar.bz2)
+set(X264_HASH ae8a868a0e236a348b35d79f3ee80294b169d1195408b689f9851383661ed7aa)

-set(X264_URI https://code.videolan.org/videolan/x264/-/archive/33f9e1474613f59392be5ab6a7e7abf60fa63622/x264-33f9e1474613f59392be5ab6a7e7abf60fa63622.tar.gz)
-set(X264_HASH 5456450ee1ae02cd2328be3157367a232a0ab73315e8c8f80dab80469524f525)
+set(XVIDCORE_VERSION 1.3.5)
+set(XVIDCORE_URI http://downloads.xvid.org/downloads/xvidcore-${XVIDCORE_VERSION}.tar.gz)
+set(XVIDCORE_HASH 165ba6a2a447a8375f7b06db5a3c91810181f2898166e7c8137401d7fc894cf0)

-set(XVIDCORE_VERSION 1.3.7)
-set(XVIDCORE_URI https://downloads.xvid.com/downloads/xvidcore-${XVIDCORE_VERSION}.tar.gz)
-set(XVIDCORE_HASH abbdcbd39555691dd1c9b4d08f0a031376a3b211652c0d8b3b8aa9be1303ce2d)
-
-set(OPENJPEG_VERSION 2.3.1)
+#this has to be in sync with the version in blenders /extern folder
+set(OPENJPEG_VERSION 2.3.0)
 set(OPENJPEG_SHORT_VERSION 2.3)
-set(OPENJPEG_URI https://github.com/uclouvain/openjpeg/archive/v${OPENJPEG_VERSION}.tar.gz)
-set(OPENJPEG_HASH 63f5a4713ecafc86de51bfad89cc07bb788e9bba24ebbf0c4ca637621aadb6a9)
+# Use slightly newer commit after release which includes a cmake fix
+set(OPENJPEG_URI https://github.com/uclouvain/openjpeg/archive/66297f07a43.zip)
+set(OPENJPEG_HASH 8242b18d908c7c42174e4231a741cfa7ce7c26b6ed5c9644feb9df7b3054310b)

-set(FFMPEG_VERSION 4.2.3)
+set(FAAD_VERSION 2-2.8.8)
+set(FAAD_URI http://downloads.sourceforge.net/faac/faad${FAAD_VERSION}.tar.gz)
+set(FAAD_HASH 28f6116efdbe9378269f8a6221767d1f)
+
+set(FFMPEG_VERSION 4.0.2)
 set(FFMPEG_URI http://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.bz2)
-set(FFMPEG_HASH 695fad11f3baf27784e24cb0e977b65a)
+set(FFMPEG_HASH 5576e8a22f80b6a336db39808f427cfb)

 set(FFTW_VERSION 3.3.8)
 set(FFTW_URI http://www.fftw.org/fftw-${FFTW_VERSION}.tar.gz)
 set(FFTW_HASH 8aac833c943d8e90d51b697b27d4384d)

-set(ICONV_VERSION 1.16)
+set(ICONV_VERSION 1.15)
 set(ICONV_URI http://ftp.gnu.org/pub/gnu/libiconv/libiconv-${ICONV_VERSION}.tar.gz)
-set(ICONV_HASH 7d2a800b952942bb2880efb00cfd524c)
+set(ICONV_HASH ace8b5f2db42f7b3b3057585e80d9808)
+
+set(LAPACK_VERSION 3.6.0)
+set(LAPACK_URI http://www.netlib.org/lapack/lapack-${LAPACK_VERSION}.tgz)
+set(LAPACK_HASH f2f6c67134e851fe189bb3ca1fbb5101)

 set(SNDFILE_VERSION 1.0.28)
 set(SNDFILE_URI http://www.mega-nerd.com/libsndfile/files/libsndfile-${SNDFILE_VERSION}.tar.gz)
 set(SNDFILE_HASH 646b5f98ce89ac60cdb060fcd398247c)

-# set(HIDAPI_VERSION 0.8.0-rc1)
-# set(HIDAPI_URI https://github.com/signal11/hidapi/archive/hidapi-${HIDAPI_VERSION}.tar.gz)
-# set(HIDAPI_HASH 069f9dd746edc37b6b6d0e3656f47199)
+#set(HIDAPI_VERSION 0.8.0-rc1)
+#set(HIDAPI_URI https://github.com/signal11/hidapi/archive/hidapi-${HIDAPI_VERSION}.tar.gz)
+#set(HIDAPI_HASH 069f9dd746edc37b6b6d0e3656f47199)

 set(HIDAPI_UID 89a6c75dc6f45ecabd4ddfbd2bf5ba6ad8ba38b5)
 set(HIDAPI_URI https://github.com/TheOnlyJoey/hidapi/archive/${HIDAPI_UID}.zip)
@@ -232,30 +246,30 @@ set(SPNAV_VERSION 0.2.3)
 set(SPNAV_URI http://downloads.sourceforge.net/project/spacenav/spacenav%20library%20%28SDK%29/libspnav%20${SPNAV_VERSION}/libspnav-${SPNAV_VERSION}.tar.gz)
 set(SPNAV_HASH 44d840540d53326d4a119c0f1aa7bf0a)

-set(JEMALLOC_VERSION 5.2.1)
+set(JEMALLOC_VERSION 5.0.1)
 set(JEMALLOC_URI https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/jemalloc-${JEMALLOC_VERSION}.tar.bz2)
-set(JEMALLOC_HASH 3d41fbf006e6ebffd489bdb304d009ae)
+set(JEMALLOC_HASH 507f7b6b882d868730d644510491d18f)

-set(XML2_VERSION 2.9.10)
+set(XML2_VERSION 2.9.4)
 set(XML2_URI http://xmlsoft.org/sources/libxml2-${XML2_VERSION}.tar.gz)
-set(XML2_HASH 10942a1dc23137a8aa07f0639cbfece5)
+set(XML2_HASH ae249165c173b1ff386ee8ad676815f5)

 set(TINYXML_VERSION 2_6_2)
 set(TINYXML_VERSION_DOTS 2.6.2)
 set(TINYXML_URI https://nchc.dl.sourceforge.net/project/tinyxml/tinyxml/${TINYXML_VERSION_DOTS}/tinyxml_${TINYXML_VERSION}.tar.gz)
 set(TINYXML_HASH c1b864c96804a10526540c664ade67f0)

-set(YAMLCPP_VERSION 0.6.3)
+set(YAMLCPP_VERSION 0.6.2)
 set(YAMLCPP_URI https://codeload.github.com/jbeder/yaml-cpp/tar.gz/yaml-cpp-${YAMLCPP_VERSION})
-set(YAMLCPP_HASH b45bf1089a382e81f6b661062c10d0c2)
+set(YAMLCPP_HASH 5b943e9af0060d0811148b037449ef82)

 set(LCMS_VERSION 2.9)
 set(LCMS_URI https://nchc.dl.sourceforge.net/project/lcms/lcms/${LCMS_VERSION}/lcms2-${LCMS_VERSION}.tar.gz)
 set(LCMS_HASH 8de1b7724f578d2995c8fdfa35c3ad0e)

-set(PUGIXML_VERSION 1.10)
-set(PUGIXML_URI https://github.com/zeux/pugixml/archive/v${PUGIXML_VERSION}.tar.gz)
-set(PUGIXML_HASH 0c208b0664c7fb822bf1b49ad035e8fd)
+set(PUGIXML_VERSION 1.9)
+set(PUGIXML_URI https://github.com/zeux/pugixml/archive/v1.9.tar.gz)
+set(PUGIXML_HASH 9346ca1dce2c48f1748c12fdac41a714)

 set(FLEXBISON_VERSION 2.5.5)
 set(FLEXBISON_URI http://prdownloads.sourceforge.net/winflexbison//win_flex_bison-2.5.5.zip)
@@ -265,53 +279,26 @@ set(FLEXBISON_HASH d87a3938194520d904013abef3df10ce)

 # NOTE: bzip.org domain does no longer belong to BZip 2 project, so we download
 # sources from Debian packaging.
-set(BZIP2_VERSION 1.0.8)
-set(BZIP2_URI http://http.debian.net/debian/pool/main/b/bzip2/bzip2_${BZIP2_VERSION}.orig.tar.gz)
-set(BZIP2_HASH ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269)
+set(BZIP2_VERSION 1.0.6)
+set(BZIP2_URI http://http.debian.net/debian/pool/main/b/bzip2/bzip2_${BZIP2_VERSION}.orig.tar.bz2)
+set(BZIP2_HASH d70a9ccd8bdf47e302d96c69fecd54925f45d9c7b966bb4ef5f56b770960afa7)

-set(FFI_VERSION 3.3)
+set(FFI_VERSION 3.2.1)
 set(FFI_URI https://sourceware.org/pub/libffi/libffi-${FFI_VERSION}.tar.gz)
-set(FFI_HASH 72fba7922703ddfa7a028d513ac15a85c8d54c8d67f55fa5a4802885dc652056)
+set(FFI_HASH d06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37)

-set(LZMA_VERSION 5.2.5)
+set(LZMA_VERSION 5.2.4)
 set(LZMA_URI https://tukaani.org/xz/xz-${LZMA_VERSION}.tar.bz2)
-set(LZMA_HASH 5117f930900b341493827d63aa910ff5e011e0b994197c3b71c08a20228a42df)
+set(LZMA_HASH 3313fd2a95f43d88e44264e6b015e7d03053e681860b0d5d3f9baca79c57b7bf)

-set(SSL_VERSION 1.1.1g)
+set(SSL_VERSION 1.1.0i)
 set(SSL_URI https://www.openssl.org/source/openssl-${SSL_VERSION}.tar.gz)
-set(SSL_HASH ddb04774f1e32f0c49751e21b67216ac87852ceb056b75209af2443400636d46)
+set(SSL_HASH ebbfc844a8c8cc0ea5dc10b86c9ce97f401837f3fa08c17b2cdadc118253cf99)

-set(SQLITE_VERSION 3.31.1)
+set(SQLITE_VERSION 3.24.0)
 set(SQLITE_URI https://www.sqlite.org/2018/sqlite-src-3240000.zip)
 set(SQLITE_HASH fb558c49ee21a837713c4f1e7e413309aabdd9c7)

-set(EMBREE_VERSION 3.10.0)
+set(EMBREE_VERSION 3.2.4)
 set(EMBREE_URI https://github.com/embree/embree/archive/v${EMBREE_VERSION}.zip)
-set(EMBREE_HASH 4bbe29e7eaa46417efc75fc5f1e8eb87)
-
-set(USD_VERSION 20.05)
-set(USD_URI https://github.com/PixarAnimationStudios/USD/archive/v${USD_VERSION}.tar.gz)
-set(USD_HASH 6d679e739e7f65725d9c029e37dda9fc)
-
-set(OIDN_VERSION 1.2.1)
-set(OIDN_URI https://github.com/OpenImageDenoise/oidn/releases/download/v${OIDN_VERSION}/oidn-${OIDN_VERSION}.src.tar.gz)
-set(OIDN_HASH cbebc1a25eb6de62af3a59e943063608)
-
-set(LIBGLU_VERSION 9.0.1)
-set(LIBGLU_URI ftp://ftp.freedesktop.org/pub/mesa/glu/glu-${LIBGLU_VERSION}.tar.xz)
-set(LIBGLU_HASH 151aef599b8259efe9acd599c96ea2a3)
-
-set(MESA_VERSION 18.3.1)
-set(MESA_URI ftp://ftp.freedesktop.org/pub/mesa//mesa-${MESA_VERSION}.tar.xz)
-set(MESA_HASH d60828056d77bfdbae0970f9b15fb1be)
-
-set(NASM_VERSION 2.15.02)
-set(NASM_URI https://www.nasm.us/pub/nasm/releasebuilds/${NASM_VERSION}/nasm-${NASM_VERSION}.tar.xz)
-set(NASM_HASH f4fd1329b1713e1ccd34b2fc121c4bcd278c9f91cc4cb205ae8fcd2e4728dd14)
-
-set(XR_OPENXR_SDK_VERSION 1.0.8)
-set(XR_OPENXR_SDK_URI https://github.com/KhronosGroup/OpenXR-SDK/archive/release-${XR_OPENXR_SDK_VERSION}.tar.gz)
-set(XR_OPENXR_SDK_HASH c6de63d2e0f9029aa58dfa97cad8ce07)
-set(ISPC_VERSION v1.13.0)
-set(ISPC_URI https://github.com/ispc/ispc/archive/${ISPC_VERSION}.tar.gz)
-set(ISPC_HASH 4bf5e8d0020c4b9980faa702c1a6f25f)
+set(EMBREE_HASH 3d4a1147002ff43939d45140aa9d6fb8)
--- a/build_files/build_environment/cmake/vpx.cmake
+++ b/build_files/build_environment/cmake/vpx.cmake
@@ -24,11 +24,7 @@ if(WIN32)
  endif()
 else()
  if(APPLE)
-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-      set(VPX_EXTRA_FLAGS --target=generic-gnu)
-    else()
-      set(VPX_EXTRA_FLAGS --target=x86_64-darwin17-gcc)
-    endif()
+    set(VPX_EXTRA_FLAGS --target=x86_64-darwin13-gcc)
  else()
    set(VPX_EXTRA_FLAGS --target=generic-gnu)
  endif()
@@ -53,8 +49,6 @@ ExternalProject_Add(external_vpx
      --disable-avx2
      --disable-unit-tests
      --disable-examples
-      --enable-vp8
-      --enable-vp9
      ${VPX_EXTRA_FLAGS}
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vpx/src/external_vpx/ && make -j${MAKE_THREADS}
  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vpx/src/external_vpx/ && make install
--- a/build_files/build_environment/cmake/webp.cmake
+++ b/build_files/build_environment/cmake/webp.cmake
@@ -39,12 +39,3 @@ ExternalProject_Add(external_webp
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/webp -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${WEBP_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/webp
 )
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_webp after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/webp ${HARVEST_TARGET}/webp
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/x264.cmake
+++ b/build_files/build_environment/cmake/x264.cmake
@@ -18,29 +18,19 @@

 if(WIN32)
  set(X264_EXTRA_ARGS --enable-win32thread --cross-prefix=${MINGW_HOST}- --host=${MINGW_HOST})
-endif()
-
-
-if(APPLE)
-  if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-    set(X264_EXTRA_ARGS ${X264_EXTRA_ARGS} "--disable-asm")
-    set(X264_CONFIGURE_ENV echo .)
-  else()
-    set(X264_CONFIGURE_ENV
-      export AS=${LIBDIR}/nasm/bin/nasm
-    )
-  endif()
+  set(X264_PATCH_CMD ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/x264/src/external_x264 < ${PATCH_DIR}/x264.diff)
 else()
-  set(X264_CONFIGURE_ENV echo .)
+  set(X264_PATCH_CMD echo .)
 endif()

+
 ExternalProject_Add(external_x264
  URL ${X264_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH SHA256=${X264_HASH}
  PREFIX ${BUILD_DIR}/x264
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && ${X264_CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ &&
-    ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/x264
+  PATCH_COMMAND ${X264_PATCH_CMD}
+  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/x264
    --enable-static
    --enable-pic
    --disable-lavf
@@ -53,10 +43,3 @@ ExternalProject_Add(external_x264
 if(MSVC)
  set_target_properties(external_x264 PROPERTIES FOLDER Mingw)
 endif()
-
-if(APPLE)
-  add_dependencies(
-    external_x264
-    external_nasm
-  )
-endif()
--- a/build_files/build_environment/cmake/xr_openxr.cmake
+++ b/build_files/build_environment/cmake/xr_openxr.cmake
@@ -1,60 +0,0 @@
-# ***** 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 *****
-
-
-# Keep flags in sync with install_deps.sh ones in compile_XR_OpenXR_SDK()
-set(XR_OPENXR_SDK_EXTRA_ARGS
-  -DBUILD_FORCE_GENERATION=OFF
-  -DBUILD_LOADER=ON
-  -DDYNAMIC_LOADER=OFF
-)
-
-if(UNIX AND NOT APPLE)
-  list(APPEND XR_OPENXR_SDK_EXTRA_ARGS
-    -DBUILD_WITH_WAYLAND_HEADERS=OFF
-    -DBUILD_WITH_XCB_HEADERS=OFF
-    -DBUILD_WITH_XLIB_HEADERS=ON
-    -DBUILD_WITH_SYSTEM_JSONCPP=OFF
-    -DCMAKE_CXX_FLAGS=-DDISABLE_STD_FILESYSTEM=1
-  )
-endif()
-
-ExternalProject_Add(external_xr_openxr_sdk
-  URL ${XR_OPENXR_SDK_URI}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH MD5=${XR_OPENXR_SDK_HASH}
-  PREFIX ${BUILD_DIR}/xr_openxr_sdk
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/xr_openxr_sdk ${DEFAULT_CMAKE_FLAGS} ${XR_OPENXR_SDK_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/xr_openxr_sdk
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_xr_openxr_sdk after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/xr_openxr_sdk/include/openxr ${HARVEST_TARGET}/xr_openxr_sdk/include/openxr
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/xr_openxr_sdk/lib ${HARVEST_TARGET}/xr_openxr_sdk/lib
-      DEPENDEES install
-    )
-  endif()
-  if(BUILD_MODE STREQUAL Debug)
-    ExternalProject_Add_Step(external_xr_openxr_sdk after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/xr_openxr_sdk/lib/openxr_loader.lib ${HARVEST_TARGET}/xr_openxr_sdk/lib/openxr_loader_d.lib
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/yamlcpp.cmake
+++ b/build_files/build_environment/cmake/yamlcpp.cmake
@@ -21,7 +21,7 @@ set(YAMLCPP_EXTRA_ARGS
  -DYAML_CPP_BUILD_TESTS=OFF
  -DYAML_CPP_BUILD_TOOLS=OFF
  -DYAML_CPP_BUILD_CONTRIB=OFF
-  -DYAML_MSVC_SHARED_RT=ON
+  -DMSVC_SHARED_RT=OFF
 )

 ExternalProject_Add(external_yamlcpp
--- a/build_files/build_environment/dependencies.dot
+++ b/build_files/build_environment/dependencies.dot
@@ -1,100 +0,0 @@
-strict graph {
-graph[autosize = false, size = "25.7,8.3!", resolution = 300, overlap = false, splines = false, outputorder=edgesfirst ];
-	node [style=filled fillcolor=white];
-	external_alembic -- external_boost;
-	external_alembic -- external_zlib;
-	external_alembic -- external_openexr;
-	external_blosc -- external_zlib;
-	external_blosc -- external_pthreads;
-	external_boost -- Make_Python_Environment;
-	external_clang -- ll;
-	external_ffmpeg -- external_zlib;
-	external_ffmpeg -- external_faad;
-	external_ffmpeg -- external_openjpeg;
-	external_ffmpeg -- external_xvidcore;
-	external_ffmpeg -- external_x264;
-	external_ffmpeg -- external_vpx;
-	external_ffmpeg -- external_theora;
-	external_ffmpeg -- external_vorbis;
-	external_ffmpeg -- external_ogg;
-	external_ffmpeg -- external_lame;
-	external_ffmpeg -- external_zlib_mingw;
-	external_numpy -- Make_Python_Environment;
-	external_opencollada -- external_xml2;
-	external_opencolorio -- external_boost;
-	external_opencolorio -- external_tinyxml;
-	external_opencolorio -- external_yamlcpp;
-	external_openexr -- external_zlib;
-	external_openimageio -- external_png;
-	external_openimageio -- external_zlib;
-	external_openimageio -- external_openexr;
-	external_openimageio -- external_openexr;
-	external_openimageio -- external_jpeg;
-	external_openimageio -- external_boost;
-	external_openimageio -- external_tiff;
-	external_openimageio -- external_opencolorio;
-	external_openimageio -- external_openjpeg;
-	external_openimageio -- external_webp;
-	external_openimageio -- external_opencolorio_extra;
-	external_openmp -- external_clang;
-	external_opensubdiv -- external_glew;
-	external_opensubdiv -- external_glfw;
-	external_opensubdiv -- external_clew;
-	external_opensubdiv -- external_cuew;
-	external_opensubdiv -- external_tbb;
-	openvdb -- external_tbb;
-	openvdb -- external_boost;
-	openvdb -- external_openexr;
-	openvdb -- external_openexr;
-	openvdb -- external_zlib;
-	openvdb -- external_blosc;
-	external_osl -- external_boost;
-	external_osl -- ll;
-	external_osl -- external_clang;
-	external_osl -- external_openexr;
-	external_osl -- external_openexr;
-	external_osl -- external_zlib;
-	external_osl -- external_flexbison;
-	external_osl -- external_openimageio;
-	external_osl -- external_pugixml;
-	external_png -- external_zlib;
-	external_python_site_packages -- Make_Python_Environment;
-	external_sndfile -- external_ogg;
-	external_sndfile -- external_vorbis;
-	external_sndfile -- external_flac;
-	external_theora -- external_vorbis;
-	external_theora -- external_ogg;
-	external_tiff -- external_zlib;
-	external_vorbis -- external_ogg;
-	blender-- external_ffmpeg;
-	blender-- external_alembic;
-	blender-- external_openjpeg;
-	blender-- external_opencolorio;
-	blender-- external_openexr;
-	blender-- external_opensubdiv;
-	blender-- openvdb;
-	blender-- external_osl;
-	blender-- external_boost;
-	blender-- external_jpeg;
-	blender-- external_png;
-	blender-- external_python;
-	blender-- external_sndfile;
-	blender-- external_iconv;
-	blender-- external_fftw3;
-	external_python-- external_python_site_packages;
-	external_python_site_packages-- requests;
-	external_python_site_packages-- idna;
-	external_python_site_packages-- chardet;
-	external_python_site_packages-- urllib3;
-	external_python_site_packages-- certifi;
-	external_python-- external_numpy;
-	external_usd-- external_boost;
-	external_usd-- external_tbb;
-	blender-- external_opencollada;
-	blender-- external_sdl;
-	blender-- external_freetype;
-	blender-- external_pthreads;
-	blender-- external_zlib;
-	blender-- external_openal;
-    blender-- external_usd;
-}
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
--- a/build_files/build_environment/patches/.gitattributes
+++ b/build_files/build_environment/patches/.gitattributes
@@ -1,2 +0,0 @@
-# Files contains mixed line endings, patch needs to preserve them to apply.
-opencollada.diff binary
--- a/build_files/build_environment/patches/blosc.diff
+++ b/build_files/build_environment/patches/blosc.diff
@@ -10,122 +10,22 @@ diff -Naur src/blosc/CMakeLists.txt external_blosc/blosc/CMakeLists.txt
     endif(NOT Threads_FOUND)
 else(WIN32)
     find_package(Threads REQUIRED)
-diff -Naur src/CMakeLists.txt external_blosc/CMakeLists.txt
--- src/CMakeLists.txt	2016-02-03 10:26:28 -0700
-+++ external_blosc/CMakeLists.txt	2017-03-03 09:03:31 -0700
-@@ -17,8 +17,8 @@
- #       do not include support for the Snappy library
- #   DEACTIVATE_ZLIB: default OFF
- #       do not include support for the Zlib library
-#   PREFER_EXTERNAL_COMPLIBS: default ON
-#       when found, use the installed compression libs instead of included sources
-+#   PREFER_EXTERNAL_ZLIB: default ON
-+#       when found, use the installed zlib instead of included sources
- #   TEST_INCLUDE_BENCH_SINGLE_1: default ON
- #       add a test that runs the benchmark program passing "single" with 1 thread
- #       as first parameter
-@@ -80,29 +80,23 @@
-     "Do not include support for the SNAPPY library." OFF)
- option(DEACTIVATE_ZLIB
-     "Do not include support for the ZLIB library." OFF)
-option(PREFER_EXTERNAL_COMPLIBS
-    "When found, use the installed compression libs instead of included sources." ON)
-+option(PREFER_EXTERNAL_ZLIB
-+    "When found, use the installed zlib instead of included sources." ON)
- 
- set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
- 
-if(NOT PREFER_EXTERNAL_COMPLIBS)
-+if(NOT PREFER_EXTERNAL_ZLIB)
-     message(STATUS "Finding external libraries disabled.  Using internal sources.")
-endif(NOT PREFER_EXTERNAL_COMPLIBS)
-+endif(NOT PREFER_EXTERNAL_ZLIB)
- 
- 
- if(NOT DEACTIVATE_LZ4)
-    if(PREFER_EXTERNAL_COMPLIBS)
-        find_package(LZ4)
-    endif(PREFER_EXTERNAL_COMPLIBS)
-     # HAVE_LZ4 will be set to true because even if the library is
-     # not found, we will use the included sources for it
-     set(HAVE_LZ4 TRUE)
- endif(NOT DEACTIVATE_LZ4)
- 
- if(NOT DEACTIVATE_SNAPPY)
-    if(PREFER_EXTERNAL_COMPLIBS)
-        find_package(Snappy)
-    endif(PREFER_EXTERNAL_COMPLIBS)
-     # HAVE_SNAPPY will be set to true because even if the library is not found,
-     # we will use the included sources for it
-     set(HAVE_SNAPPY TRUE)
-@@ -110,13 +104,13 @@
- 
- if(NOT DEACTIVATE_ZLIB)
-     # import the ZLIB_ROOT environment variable to help finding the zlib library
-    if(PREFER_EXTERNAL_COMPLIBS)
-+    if(PREFER_EXTERNAL_ZLIB)
-         set(ZLIB_ROOT $ENV{ZLIB_ROOT})
-         find_package( ZLIB )
-         if (NOT ZLIB_FOUND )
-             message(STATUS "No zlib found.  Using internal sources.")
-         endif (NOT ZLIB_FOUND )
-    endif(PREFER_EXTERNAL_COMPLIBS)
-+    endif(PREFER_EXTERNAL_ZLIB)
-     # HAVE_ZLIB will be set to true because even if the library is not found,
-     # we will use the included sources for it
-     set(HAVE_ZLIB TRUE)
 diff -Naur external_blosc.orig/blosc/blosc.c external_blosc/blosc/blosc.c
 --- external_blosc.orig/blosc/blosc.c   2018-07-30 04:56:38 -0600
 +++ external_blosc/blosc/blosc.c        2018-08-11 15:27:26 -0600
-@@ -41,12 +41,7 @@
+@@ -56,14 +56,7 @@
   #include <inttypes.h>
 #endif  /* _WIN32 */

+-/* Include the win32/pthread.h library for all the Windows builds. See #224. */
 -#if defined(_WIN32)
 -  #include "win32/pthread.h"
 -  #include "win32/pthread.c"
 -#else
 -  #include <pthread.h>
 -#endif
+-
 +#include <pthread.h>

-
 /* Some useful units */
- diff --git a/blosc/shuffle.c b/blosc/shuffle.c
- index 84b5095..23053b4 100644
- --- a/blosc/shuffle.c
- +++ b/blosc/shuffle.c
- @@ -490,12 +490,12 @@ void unshuffle(size_t bytesoftype, size_t blocksize,
-  #else   /* no __SSE2__ available */
- 
-  void shuffle(size_t bytesoftype, size_t blocksize,
- -             uint8_t* _src, uint8_t* _dest) {
- +             const uint8_t* _src, uint8_t* _dest) {
-    _shuffle(bytesoftype, blocksize, _src, _dest);
-  }
- 
-  void unshuffle(size_t bytesoftype, size_t blocksize,
- -               uint8_t* _src, uint8_t* _dest) {
- +               const uint8_t* _src, uint8_t* _dest) {
-    _unshuffle(bytesoftype, blocksize, _src, _dest);
-  }
-  --- a/cmake/FindSSE.cmake
-  +++ b/cmake/FindSSE.cmake
-  @@ -49,6 +49,17 @@
-         set(AVX_FOUND false CACHE BOOL "AVX available on host")
-      ENDIF (AVX_TRUE)
-   ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  +   execute_process(COMMAND uname -m OUTPUT_VARIABLE ARCHITECTURE OUTPUT_STRIP_TRAILING_WHITESPACE)
-  +   message(STATUS "Detected architecture ${ARCHITECTURE}")
-  +   IF("${ARCHITECTURE}" STREQUAL "arm64")
-  +      set(SSE2_FOUND   false  CACHE BOOL "SSE2 available on host")
-  +      set(SSE3_FOUND   false CACHE BOOL "SSE3 available on host")
-  +      set(SSSE3_FOUND  false CACHE BOOL "SSSE3 available on host")
-  +      set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
-  +      set(AVX_FOUND false CACHE BOOL "AVX available on host")
-  +      return()
-  +   ENDIF()
-  +   
-      EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE
-         CPUINFO)
- 
+ #define KB 1024
--- a/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
@@ -29,6 +29,9 @@ ENDIF()

 SET(_blosc_SEARCH_DIRS
  ${BLOSC_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
  /opt/lib/blosc
 )

--- a/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
@@ -29,6 +29,9 @@ ENDIF()

 SET(_cppunit_SEARCH_DIRS
  ${CPPUNIT_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
  /opt/lib/cppunit
 )

--- a/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
@@ -26,8 +26,8 @@ include(FindPackageMessage)
 include(SelectLibraryConfigurations)


-if(ILMBASE_USE_STATIC_LIBS)
-  set(_ilmbase_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+if( ILMBASE_USE_STATIC_LIBS )
+  set( _ilmbase_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
  if(WIN32)
    set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
  else()
@@ -124,6 +124,7 @@ set(IlmBase_generic_include_paths
  /usr/include
  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}
  /usr/local/include
+  /sw/include
  /opt/local/include
 )
 set(IlmBase_generic_library_paths
@@ -132,6 +133,7 @@ set(IlmBase_generic_library_paths
  /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
  /usr/local/lib
  /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /sw/lib
  /opt/local/lib
 )

@@ -190,11 +192,11 @@ if(ILMBASE_CUSTOM)
  set(IlmBase_Libraries ${ILMBASE_CUSTOM_LIBRARIES})
  separate_arguments(IlmBase_Libraries)
 else()
-# elseif(${ILMBASE_VERSION} VERSION_LESS "2.1")
+#elseif(${ILMBASE_VERSION} VERSION_LESS "2.1")
  set(IlmBase_Libraries Half Iex Imath IlmThread)
-# else()
-#   string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _ilmbase_libs_ver ${ILMBASE_VERSION})
-#   set(IlmBase_Libraries Half Iex-${_ilmbase_libs_ver} Imath-${_ilmbase_libs_ver} IlmThread-${_ilmbase_libs_ver})
+#else()
+#  string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _ilmbase_libs_ver ${ILMBASE_VERSION})
+#  set(IlmBase_Libraries Half Iex-${_ilmbase_libs_ver} Imath-${_ilmbase_libs_ver} IlmThread-${_ilmbase_libs_ver})
 endif()


@@ -247,7 +249,7 @@ if(ILMBASE_FOUND)
 endif()

 # Restore the original find library ordering
-if(ILMBASE_USE_STATIC_LIBS )
+if( ILMBASE_USE_STATIC_LIBS )
  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_ilmbase_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
 endif()

--- a/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
@@ -29,6 +29,9 @@ ENDIF()

 SET(_logc4plus_SEARCH_DIRS
  ${LOGC4PLUS_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
  /opt/lib/logc4plus
 )

--- a/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
@@ -119,6 +119,7 @@ set(OpenEXR_generic_include_paths
  /usr/include
  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}
  /usr/local/include
+  /sw/include
  /opt/local/include
 )
 set(OpenEXR_generic_library_paths
@@ -127,6 +128,7 @@ set(OpenEXR_generic_library_paths
  /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
  /usr/local/lib
  /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /sw/lib
  /opt/local/lib
 )

@@ -186,11 +188,11 @@ if(OPENEXR_CUSTOM)
  endif()
  set(OpenEXR_Library ${OPENEXR_CUSTOM_LIBRARY})
 else()
-# elseif(${OPENEXR_VERSION} VERSION_LESS "2.1")
+#elseif(${OPENEXR_VERSION} VERSION_LESS "2.1")
  set(OpenEXR_Library IlmImf)
-# else()
-#   string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _openexr_libs_ver ${OPENEXR_VERSION})
-#   set(OpenEXR_Library IlmImf-${_openexr_libs_ver})
+#else()
+#  string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _openexr_libs_ver ${OPENEXR_VERSION})
+#  set(OpenEXR_Library IlmImf-${_openexr_libs_ver})
 endif()

 # Locate the OpenEXR library
@@ -230,7 +232,7 @@ if(OPENEXR_FOUND)
 endif()

 # Restore the original find library ordering
-if(OPENEXR_USE_STATIC_LIBS )
+if( OPENEXR_USE_STATIC_LIBS )
  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_openexr_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
 endif()

--- a/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
@@ -29,6 +29,9 @@ ENDIF()

 SET(_tbb_SEARCH_DIRS
  ${TBB_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
  /opt/lib/tbb
 )

--- a/build_files/build_environment/patches/cmakelists_hidapi.txt
+++ b/build_files/build_environment/patches/cmakelists_hidapi.txt
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 2.8)
+project(hidapi)
+
+set(SRC_FILES
+	windows/hid.c
+)
+
+set(HEADER_FILES
+	hidapi/hidapi.h
+)
+include_directories(hidapi)
+add_definitions(-DHID_API_STATIC)
+add_library(hidapi STATIC ${SRC_FILES} ${HEADER_FILES})
+
+install(TARGETS hidapi DESTINATION lib)
+
+INSTALL(FILES hidapi/hidapi.h
+        DESTINATION "include"
+        )
+
--- a/build_files/build_environment/patches/cmakelists_tbb.txt
+++ b/build_files/build_environment/patches/cmakelists_tbb.txt
@@ -109,9 +109,6 @@ if (WIN32)
    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def
    COMMENT "Preprocessing tbbmalloc.def"
  )
-  list(APPEND tbb_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/tbb_resource.rc)
-  list(APPEND tbbmalloc_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/tbbmalloc.rc)
-  list(APPEND tbbmalloc_proxy_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/tbbmalloc.rc)
 else()
  add_custom_command(OUTPUT tbb.def
    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o tbb.def
@@ -148,12 +145,8 @@ if (TBB_BUILD_SHARED)
    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
  elseif(WIN32)
    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "/DEF:${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
-    
  endif()
  install(TARGETS tbb DESTINATION lib)
-  if(WIN32)
-    set_target_properties(tbb PROPERTIES OUTPUT_NAME "tbb$<$<CONFIG:Debug>:_debug>")
-  endif()
 endif()

 if(CMAKE_COMPILER_IS_GNUCC)
@@ -203,7 +196,7 @@ if(TBB_BUILD_TBBMALLOC_PROXY)
    add_library(tbbmalloc_proxy SHARED ${tbbmalloc_proxy_src})
    set_property(TARGET tbbmalloc_proxy APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
    set_property(TARGET tbbmalloc_proxy APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
-    target_link_libraries(tbbmalloc_proxy tbbmalloc)
+    link_libraries(tbbmalloc_proxy tbbmalloc)
    install(TARGETS tbbmalloc_proxy DESTINATION lib)
  endif()
 endif()
--- a/build_files/build_environment/patches/embree.diff
+++ b/build_files/build_environment/patches/embree.diff
@@ -1,14 +0,0 @@
-diff -Naur orig/common/sys/platform.h external_embree/common/sys/platform.h
--- orig/common/sys/platform.h	2020-05-13 23:08:53 -0600
-+++ external_embree/common/sys/platform.h	2020-06-13 17:40:26 -0600
-@@ -84,8 +84,8 @@
- ////////////////////////////////////////////////////////////////////////////////
- 
- #ifdef __WIN32__
-#define dll_export __declspec(dllexport)
-#define dll_import __declspec(dllimport)
-+#define dll_export 
-+#define dll_import 
- #else
- #define dll_export __attribute__ ((visibility ("default")))
- #define dll_import 
--- a/build_files/build_environment/patches/ffmpeg.diff
+++ b/build_files/build_environment/patches/ffmpeg.diff
@@ -9,62 +9,3 @@
 enabled libopenmpt        && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
 enabled libopus           && {
     enabled libopus_decoder && {
--- a/libavcodec/cfhddata.c
-+++ b/libavcodec/cfhddata.c
-@@ -276,10 +276,10 @@
- av_cold int ff_cfhd_init_vlcs(CFHDContext *s)
- {
-     int i, j, ret = 0;
-    uint32_t new_cfhd_vlc_bits[NB_VLC_TABLE_18 * 2];
-    uint8_t  new_cfhd_vlc_len[NB_VLC_TABLE_18 * 2];
-    uint16_t new_cfhd_vlc_run[NB_VLC_TABLE_18 * 2];
-    int16_t  new_cfhd_vlc_level[NB_VLC_TABLE_18 * 2];
-+    uint32_t *new_cfhd_vlc_bits = av_calloc(sizeof(uint32_t), NB_VLC_TABLE_18 * 2);
-+    uint8_t  *new_cfhd_vlc_len = av_calloc(sizeof(uint8_t), NB_VLC_TABLE_18 * 2);
-+    uint16_t *new_cfhd_vlc_run = av_calloc(sizeof(uint16_t), NB_VLC_TABLE_18 * 2);
-+    int16_t  *new_cfhd_vlc_level = av_calloc(sizeof(int16_t), NB_VLC_TABLE_18 * 2);
- 
-     /** Similar to dv.c, generate signed VLC tables **/
- 
-@@ -305,8 +305,13 @@
- 
-     ret = init_vlc(&s->vlc_9, VLC_BITS, j, new_cfhd_vlc_len,
-                    1, 1, new_cfhd_vlc_bits, 4, 4, 0);
-    if (ret < 0)
-+    if (ret < 0) {
-+        av_free(new_cfhd_vlc_bits);
-+        av_free(new_cfhd_vlc_len);
-+        av_free(new_cfhd_vlc_run);
-+        av_free(new_cfhd_vlc_level);
-         return ret;
-+    }
-     for (i = 0; i < s->vlc_9.table_size; i++) {
-         int code = s->vlc_9.table[i][0];
-         int len  = s->vlc_9.table[i][1];
-@@ -346,8 +351,14 @@
- 
-     ret = init_vlc(&s->vlc_18, VLC_BITS, j, new_cfhd_vlc_len,
-                    1, 1, new_cfhd_vlc_bits, 4, 4, 0);
-    if (ret < 0)
-+    if (ret < 0) {
-+        av_free(new_cfhd_vlc_bits);
-+        av_free(new_cfhd_vlc_len);
-+        av_free(new_cfhd_vlc_run);
-+        av_free(new_cfhd_vlc_level);
-         return ret;
-+    }
-+
-     av_assert0(s->vlc_18.table_size == 4572);
- 
-     for (i = 0; i < s->vlc_18.table_size; i++) {
-@@ -367,5 +378,10 @@
-         s->table_18_rl_vlc[i].run   = run;
-     }
- 
-+    av_free(new_cfhd_vlc_bits);
-+    av_free(new_cfhd_vlc_len);
-+    av_free(new_cfhd_vlc_run);
-+    av_free(new_cfhd_vlc_level);
-+
-     return ret;
- }
--- a/build_files/build_environment/patches/freetype.diff
+++ b/build_files/build_environment/patches/freetype.diff
@@ -0,0 +1,18 @@
+diff -NaurBb b/CMakeLists.txt a/CMakeLists.txt
+--- b/CMakeLists.txt	2018-05-01 12:45:46 -0600
+++ a/CMakeLists.txt	2018-08-08 13:03:22 -0600
+@@ -229,9 +229,12 @@
+   endif ()
+   string(REPLACE "/undef " "#undef "
+     FTCONFIG_H "${FTCONFIG_H}")
+-  file(WRITE "${PROJECT_BINARY_DIR}/include/freetype/config/ftconfig.h"
+-    "${FTCONFIG_H}")
+else()
+  file(READ "${PROJECT_SOURCE_DIR}/include/freetype/config/ftconfig.h"
+    FTCONFIG_H)
+ endif ()
+file(WRITE "${PROJECT_BINARY_DIR}/include/freetype/config/ftconfig.h"
+  "${FTCONFIG_H}")
+ 
+ 
+ # Create the options file
--- a/build_files/build_environment/patches/hidapi.diff
+++ b/build_files/build_environment/patches/hidapi.diff
@@ -0,0 +1,15 @@
+--- hidapi/hidapi.h	2011-10-25 20:58:16 -0600
+++ hidapi/hidapi.h	2016-11-01 12:05:58 -0600
+@@ -30,7 +30,11 @@
+ #include <wchar.h>
+ 
+ #ifdef _WIN32
+-      #define HID_API_EXPORT __declspec(dllexport)
+      #ifdef HID_API_STATIC
+        #define HID_API_EXPORT 
+      #else
+        #define HID_API_EXPORT __declspec(dllexport)
+      #endif
+       #define HID_API_CALL
+ #else
+       #define HID_API_EXPORT /**< API export macro */
--- a/build_files/build_environment/patches/ispc.diff
+++ b/build_files/build_environment/patches/ispc.diff
@@ -1,85 +0,0 @@
-diff -Naur external_ispc/CMakeLists.txt external_ispc_fixed/CMakeLists.txt
--- external_ispc/CMakeLists.txt	2020-04-23 17:29:06 -0600
-+++ external_ispc_fixed/CMakeLists.txt	2020-05-05 09:01:09 -0600
-@@ -389,7 +389,7 @@
- 
- # Link against Clang libraries
- foreach(clangLib ${CLANG_LIBRARY_LIST})
-    find_library(${clangLib}Path NAMES ${clangLib} HINTS ${LLVM_LIBRARY_DIRS})
-+    find_library(${clangLib}Path NAMES ${clangLib} HINTS ${LLVM_LIBRARY_DIRS} ${CLANG_LIBRARY_DIR})
-     list(APPEND CLANG_LIBRARY_FULL_PATH_LIST ${${clangLib}Path})
- endforeach()
- target_link_libraries(${PROJECT_NAME} ${CLANG_LIBRARY_FULL_PATH_LIST})
-diff -Naur orig/CMakeLists.txt external_ispc/CMakeLists.txt
--- orig/CMakeLists.txt 2020-05-05 09:19:11 -0600
-+++ external_ispc/CMakeLists.txt        2020-05-05 09:26:44 -0600
-@@ -333,7 +333,7 @@
-
- # Include directories
- target_include_directories(${PROJECT_NAME} PRIVATE
-                           ${LLVM_INCLUDE_DIRS}
-+                           ${LLVM_INCLUDE_DIRS} ${CLANG_INCLUDE_DIRS}
-                            ${CMAKE_CURRENT_SOURCE_DIR}/src
-                            ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
- # Compile options
-diff -Naur orig/cmake/GenerateBuiltins.cmake.txt external_ispc/cmake/GenerateBuiltins.cmake.txt
-+++ orig/cmake/GenerateBuiltins.cmake	2020-05-25 13:32:40.830803821 +0200
-+++ external_ispc/cmake/GenerateBuiltins.cmake	2020-05-25 13:32:40.830803821 +0200
-@@ -97,6 +97,8 @@
- 
-     if ("${bit}" STREQUAL "32" AND ${arch} STREQUAL "x86")
-         set(target_arch "i386")
-+        # Blender: disable 32bit due to build issues on Linux and being unnecessary.
-+        set(SKIP ON)
-     elseif ("${bit}" STREQUAL "64" AND ${arch} STREQUAL "x86")
-         set(target_arch "x86_64")
-     elseif ("${bit}" STREQUAL "32" AND ${arch} STREQUAL "arm")
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 46a8db8..f53beef 100644
--- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -36,8 +36,12 @@
- cmake_minimum_required(VERSION 3.13)
- 
- if (UNIX)
-    set(CMAKE_C_COMPILER "clang")
-    set(CMAKE_CXX_COMPILER "clang++")
-+    if (NOT CMAKE_C_COMPILER)
-+        set(CMAKE_C_COMPILER "clang")
-+    endif()
-+    if (NOT CMAKE_CXX_COMPILER)
-+        set(CMAKE_CXX_COMPILER "clang++")
-+    endif()
- endif()
- 
- set(PROJECT_NAME ispc)
-@@ -412,6 +416,29 @@ else()
-     endif()
- endif()
- 
-+# Link against libstdc++.a which must be provided to the linker after
-+# LLVM and CLang libraries.
-+# This is needed because some of LLVM/CLang dependencies are using
-+# std::make_shared, which is defined in one of those:
-+#  - libclang-cpp.so
-+#  - libstdc++.a
-+# Using the former one is tricky because then generated binary depends
-+# on a library which is outside of the LD_LIBRARY_PATH.
-+#
-+# Hence, using C++ implementation from G++ which seems to work just fine.
-+# In fact, from investigation seems that libclang-cpp.so itself is pulling
-+# std::_Sp_make_shared_tag from G++'s libstdc++.a.
-+if(UNIX AND NOT APPLE)
-+    execute_process(
-+        COMMAND g++ --print-file-name libstdc++.a
-+        OUTPUT_VARIABLE GCC_LIBSTDCXX_A
-+        OUTPUT_STRIP_TRAILING_WHITESPACE
-+    )
-+    if(GCC_LIBSTDCXX_A AND EXISTS ${GCC_LIBSTDCXX_A})
-+        target_link_libraries(${PROJECT_NAME} ${GCC_LIBSTDCXX_A})
-+    endif()
-+endif()
-+
- # Build target for utility checking host ISA
- if (ISPC_INCLUDE_UTILS)
-     add_executable(check_isa "")
--- a/build_files/build_environment/patches/llvm.diff
+++ b/build_files/build_environment/patches/llvm.diff
@@ -1,13 +0,0 @@
--- a/lib/Support/Unix/Path.inc	2020-02-17 09:24:26.000000000 +0100
-+++ b/lib/Support/Unix/Path.inc	2020-02-17 09:26:25.000000000 +0100
-@@ -1200,7 +1200,9 @@
- /// implementation.
- std::error_code copy_file(const Twine &From, const Twine &To) {
-   uint32_t Flag = COPYFILE_DATA;
-#if __has_builtin(__builtin_available) && defined(COPYFILE_CLONE)
-+  // BLENDER: This optimization makes LLVM not build on older Xcode versions,
-+  // just disable until everyone has new enough Xcode versions.
-+#if 0
-   if (__builtin_available(macos 10.12, *)) {
-     bool IsSymlink;
-     if (std::error_code Error = is_symlink_file(From, IsSymlink))
--- a/build_files/build_environment/patches/nasm.diff
+++ b/build_files/build_environment/patches/nasm.diff
@@ -1,129 +0,0 @@
-diff --git a/output/macho.h b/output/macho.h
-index 538c531e..fd5e8849 100644
--- a/output/macho.h
-+++ b/output/macho.h
-@@ -60,6 +60,8 @@
- #define LC_SEGMENT			0x1
- #define LC_SEGMENT_64			0x19
- #define LC_SYMTAB			0x2
-+#define LC_VERSION_MIN_MACOSX		0x24
-+#define LC_BUILD_VERSION		0x32
- 
- /* Symbol type bits */
- #define N_STAB				0xe0
-diff --git a/output/outmacho.c b/output/outmacho.c
-index 08147883..de6ec902 100644
--- a/output/outmacho.c
-+++ b/output/outmacho.c
-@@ -38,6 +38,8 @@
- 
- #include "compiler.h"
- 
-+#include <stdlib.h>
-+
- #include "nctype.h"
- 
- #include "nasm.h"
-@@ -64,6 +66,8 @@
- #define MACHO_SYMCMD_SIZE		24
- #define MACHO_NLIST_SIZE		12
- #define MACHO_RELINFO_SIZE		8
-+#define MACHO_BUILD_VERSION_SIZE	24
-+#define MACHO_VERSION_MIN_MACOSX_SIZE	16
- 
- #define MACHO_HEADER64_SIZE		32
- #define MACHO_SEGCMD64_SIZE		72
-@@ -1224,6 +1228,46 @@ static void macho_layout_symbols (uint32_t *numsyms,
-     }
- }
- 
-+static bool get_full_version_from_env (const char *variable_name,
-+                                       int *r_major,
-+                                       int *r_minor,
-+                                       int *r_patch)  {
-+    *r_major = 0;
-+    *r_minor = 0;
-+    *r_patch = 0;
-+
-+    const char *value = getenv(variable_name);
-+    if (value == NULL || value[0] == '\0') {
-+        return false;
-+    }
-+
-+    const char *current_value = value;
-+    const char *end_value = value + strlen(value);
-+
-+    char *endptr;
-+
-+    *r_major = strtol(current_value, &endptr, 10);
-+    if (endptr >= end_value) {
-+        return true;
-+    }
-+    current_value = endptr + 1;
-+
-+    *r_minor = strtol(current_value, &endptr, 10);
-+    if (endptr >= end_value) {
-+        return true;
-+    }
-+    current_value = endptr + 1;
-+
-+    *r_patch = strtol(current_value, &endptr, 10);
-+
-+    return true;
-+}
-+
-+static bool need_version_min_macosx_command (void) {
-+    return getenv("MACOSX_DEPLOYMENT_TARGET") &&
-+           getenv("MACOSX_SDK_VERSION");
-+}
-+
- /* Calculate some values we'll need for writing later.  */
- 
- static void macho_calculate_sizes (void)
-@@ -1270,6 +1314,12 @@ static void macho_calculate_sizes (void)
-         head_sizeofcmds += fmt.segcmd_size  + seg_nsects * fmt.sectcmd_size;
-     }
- 
-+    /* LC_VERSION_MIN_MACOSX */
-+    if (need_version_min_macosx_command()) {
-+	++head_ncmds;
-+	head_sizeofcmds += MACHO_VERSION_MIN_MACOSX_SIZE;
-+    }
-+
-     if (nsyms > 0) {
- 	++head_ncmds;
- 	head_sizeofcmds += MACHO_SYMCMD_SIZE;
-@@ -1653,6 +1703,33 @@ static void macho_write (void)
-     else
-         nasm_warn(WARN_OTHER, "no sections?");
- 
-+#define ENCODE_BUILD_VERSION(major, minor, patch) \
-+    (((major) << 16) | ((minor) << 8) | (patch))
-+
-+    if (0) {
-+        fwriteint32_t(LC_BUILD_VERSION, ofile); /* cmd == LC_BUILD_VERSION */
-+        fwriteint32_t(MACHO_BUILD_VERSION_SIZE, ofile); /* size of load command */
-+        fwriteint32_t(1, ofile);    /* platform */
-+        fwriteint32_t(ENCODE_BUILD_VERSION(10, 13, 0), ofile);    /* minos, X.Y.Z is encoded in nibbles xxxx.yy.zz */
-+        fwriteint32_t(ENCODE_BUILD_VERSION(10, 15, 4), ofile);    /* sdk, X.Y.Z is encoded in nibbles xxxx.yy.zz */
-+        fwriteint32_t(0, ofile);    /* number of tool entries following this */
-+    }
-+
-+    if (need_version_min_macosx_command()) {
-+        int sdk_major, sdk_minor, sdk_patch;
-+        get_full_version_from_env("MACOSX_SDK_VERSION", &sdk_major, &sdk_minor, &sdk_patch);
-+
-+        int version_major, version_minor, version_patch;
-+        get_full_version_from_env("MACOSX_DEPLOYMENT_TARGET", &version_major, &version_minor, &version_patch);
-+
-+        fwriteint32_t(LC_VERSION_MIN_MACOSX, ofile); /* cmd == LC_VERSION_MIN_MACOSX */
-+        fwriteint32_t(MACHO_VERSION_MIN_MACOSX_SIZE, ofile); /* size of load command */
-+        fwriteint32_t(ENCODE_BUILD_VERSION(version_major, version_minor, version_patch), ofile);    /* minos, X.Y.Z is encoded in nibbles xxxx.yy.zz */
-+        fwriteint32_t(ENCODE_BUILD_VERSION(sdk_major, sdk_minor, sdk_patch), ofile);    /* sdk, X.Y.Z is encoded in nibbles xxxx.yy.zz */
-+    }
-+
-+#undef ENCODE_BUILD_VERSION
-+
-     if (nsyms > 0) {
-         /* write out symbol command */
-         fwriteint32_t(LC_SYMTAB, ofile); /* cmd == LC_SYMTAB */
--- a/build_files/build_environment/patches/numpy.diff
+++ b/build_files/build_environment/patches/numpy.diff
@@ -1,27 +0,0 @@
-diff --git a/numpy/distutils/system_info.py b/numpy/distutils/system_info.py
-index ba2b1f4..b10f7df 100644
--- a/numpy/distutils/system_info.py
-+++ b/numpy/distutils/system_info.py
-@@ -2164,8 +2164,8 @@ class accelerate_info(system_info):
-                     'accelerate' in libraries):
-                 if intel:
-                     args.extend(['-msse3'])
-                else:
-                    args.extend(['-faltivec'])
-+#                else:
-+#                    args.extend(['-faltivec'])
-                 args.extend([
-                     '-I/System/Library/Frameworks/vecLib.framework/Headers'])
-                 link_args.extend(['-Wl,-framework', '-Wl,Accelerate'])
-@@ -2174,8 +2174,8 @@ class accelerate_info(system_info):
-                       'veclib' in libraries):
-                 if intel:
-                     args.extend(['-msse3'])
-                else:
-                    args.extend(['-faltivec'])
-+#                else:
-+#                    args.extend(['-faltivec'])
-                 args.extend([
-                     '-I/System/Library/Frameworks/vecLib.framework/Headers'])
-                 link_args.extend(['-Wl,-framework', '-Wl,vecLib'])
-
--- a/build_files/build_environment/patches/ogg.diff
+++ b/build_files/build_environment/patches/ogg.diff
@@ -1,12 +0,0 @@
-diff --git a/include/ogg/os_types.h b/include/ogg/os_types.h
-index eb8a322..6f73b72 100644
--- a/include/ogg/os_types.h
-+++ b/include/ogg/os_types.h
-@@ -71,6 +71,7 @@
- #elif (defined(__APPLE__) && defined(__MACH__)) /* MacOS X Framework build */
- 
- #  include <sys/types.h>
-+#  include <stdint.h>
-    typedef int16_t ogg_int16_t;
-    typedef uint16_t ogg_uint16_t;
-    typedef int32_t ogg_int32_t;
--- a/build_files/build_environment/patches/openal.diff
+++ b/build_files/build_environment/patches/openal.diff
@@ -0,0 +1,13 @@
+diff -Naur external_openal_original/CMakeLists.txt external_openal/CMakeLists.txt
+--- external_openal_original/CMakeLists.txt	2016-01-24 20:12:39 -0700
+++ external_openal/CMakeLists.txt	2018-06-02 12:16:52 -0600
+@@ -885,7 +885,8 @@
+ OPTION(ALSOFT_REQUIRE_MMDEVAPI "Require MMDevApi backend" OFF)
+ IF(HAVE_WINDOWS_H)
+     # Check MMSystem backend
+-    CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H -D_WIN32_WINNT=0x0502)
+    set(CMAKE_REQUIRED_FLAGS "-D_WIN32_WINNT=0x0502")
+    CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
+     IF(HAVE_MMSYSTEM_H)
+         CHECK_SHARED_FUNCTION_EXISTS(waveOutOpen "windows.h;mmsystem.h" winmm "" HAVE_LIBWINMM)
+         IF(HAVE_LIBWINMM)
--- a/build_files/build_environment/patches/opencollada.diff
+++ b/build_files/build_environment/patches/opencollada.diff
@@ -16,19 +16,6 @@ index 95abbe2..4f14f30 100644
 		message("WARNING: Native PCRE not found, taking PCRE from ./Externals")
 		add_definitions(-DPCRE_STATIC)
 		add_subdirectory(${EXTERNAL_LIBRARIES}/pcre)
-diff --git a/DAEValidator/CMakeLists.txt b/DAEValidator/CMakeLists.txt
-index 03ad540..f7d05cf 100644
--- a/DAEValidator/CMakeLists.txt
-+++ b/DAEValidator/CMakeLists.txt
-@@ -98,7 +98,7 @@ if (WIN32)
- # C4710: 'function' : function not inlined
- # C4711: function 'function' selected for inline expansion
- # C4820: 'bytes' bytes padding added after construct 'member_name'
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /Wall /WX /wd4505 /wd4514 /wd4592 /wd4710 /wd4711 /wd4820")
-+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /Wall /wd4505 /wd4514 /wd4592 /wd4710 /wd4711 /wd4820")
- else ()
- 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Werror")
- endif ()
 diff --git a/DAEValidator/library/include/no_warning_begin b/DAEValidator/library/include/no_warning_begin
 index 7a69c32..defb315 100644
 --- a/DAEValidator/library/include/no_warning_begin
@@ -43,36 +30,6 @@ index 7a69c32..defb315 100644
 #	if defined(_MSC_VER) && defined(_DEBUG)
 #		pragma warning(disable:4548)
 #	endif
-diff --git a/DAEValidator/library/src/ArgumentParser.cpp b/DAEValidator/library/src/ArgumentParser.cpp
-index 897e4dc..98a69ff 100644
--- a/DAEValidator/library/src/ArgumentParser.cpp
-+++ b/DAEValidator/library/src/ArgumentParser.cpp
-@@ -6,10 +6,10 @@
- 
- using namespace std;
- 
-#ifdef _MSC_VER
-#define NOEXCEPT _NOEXCEPT
-#else
-+#ifndef _NOEXCEPT
- #define NOEXCEPT noexcept
-+#else
-+#define NOEXCEPT _NOEXCEPT
- #endif
- 
- namespace opencollada
-diff --git a/Externals/LibXML/CMakeLists.txt b/Externals/LibXML/CMakeLists.txt
-index 40081e7..e1d1bfa 100644
--- a/Externals/LibXML/CMakeLists.txt
-+++ b/Externals/LibXML/CMakeLists.txt
-@@ -9,6 +9,7 @@ add_definitions(
- 		-DLIBXML_SCHEMAS_ENABLED
- 		-DLIBXML_XPATH_ENABLED
- 		-DLIBXML_TREE_ENABLED
-+		-DLIBXML_STATIC
- 	)
- 	
- if(USE_STATIC_MSVC_RUNTIME)
 diff --git a/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp b/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp
 index 1f9a3ee..d151e9a 100644
 --- a/GeneratedSaxParser/src/GeneratedSaxParserUtils.cpp
@@ -86,47 +43,3 @@ index 1f9a3ee..d151e9a 100644
         return isnan( value );
 #else
         return std::isnan(value);
-
-
-diff --git a/DAEValidator/library/src/Dae.cpp b/DAEValidator/library/src/Dae.cpp
-index 9256ee1..241ad67 100644
--- a/DAEValidator/library/src/Dae.cpp
-+++ b/DAEValidator/library/src/Dae.cpp
-@@ -304,7 +304,7 @@ namespace opencollada
- 			if (auto root_node = root())
- 			{
- 				const auto & nodes = root_node.selectNodes("//*[@id]");
-				for (const auto & node : nodes)
-+				for (const auto node : nodes)
- 				{
- 					string id = node.attribute("id").value();
- 					mIdCache.insert(id);
-@@ -312,4 +312,4 @@ namespace opencollada
- 			}
- 		}
- 	}
-}
-\ No newline at end of file
-+}
-diff --git a/DAEValidator/library/src/DaeValidator.cpp b/DAEValidator/library/src/DaeValidator.cpp
-index 715d903..24423ce 100644
--- a/DAEValidator/library/src/DaeValidator.cpp
-+++ b/DAEValidator/library/src/DaeValidator.cpp
-@@ -162,7 +162,7 @@ namespace opencollada
- 
- 		// Find xsi:schemaLocation attributes in dae and try to validate against specified xsd documents
- 		const auto & elements = dae.root().selectNodes("//*[@xsi:schemaLocation]");
-		for (const auto & element : elements)
-+		for (const auto element : elements)
- 		{
- 			if (auto schemaLocation = element.attribute("schemaLocation"))
- 			{
-@@ -274,7 +274,7 @@ namespace opencollada
- 		int result = 0;
- 		map<string, size_t> ids;
- 		const auto & nodes = dae.root().selectNodes("//*[@id]");
-		for (const auto & node : nodes)
-+		for (const auto node : nodes)
- 		{
- 			string id = node.attribute("id").value();
- 			size_t line = node.line();
--- a/build_files/build_environment/patches/openimageio.diff
+++ b/build_files/build_environment/patches/openimageio.diff
@@ -1,36 +0,0 @@
-diff -Naur orig/CMakeLists.txt external_openimageio/CMakeLists.txt
--- orig/CMakeLists.txt	2020-05-10 21:43:52 -0600
-+++ external_openimageio/CMakeLists.txt	2020-05-13 17:03:35 -0600
-@@ -170,7 +170,7 @@
-     add_subdirectory (src/iinfo)
-     add_subdirectory (src/maketx)
-     add_subdirectory (src/oiiotool)
-    add_subdirectory (src/testtex)
-+    #add_subdirectory (src/testtex)
-     add_subdirectory (src/iv)
- endif ()
- 
-diff -Naur orig/src/cmake/compiler.cmake external_openimageio/src/cmake/compiler.cmake
--- orig/src/cmake/compiler.cmake	2020-05-10 21:43:52 -0600
-+++ external_openimageio/src/cmake/compiler.cmake	2020-05-13 17:02:54 -0600
-@@ -172,6 +172,7 @@
-     add_definitions (-D_CRT_NONSTDC_NO_WARNINGS)
-     add_definitions (-D_SCL_SECURE_NO_WARNINGS)
-     add_definitions (-DJAS_WIN_MSVC_BUILD)
-+    add_definitions (-DOPJ_STATIC)
- endif (MSVC)
- 
- if (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD"
-diff -Naur orig/src/include/OpenImageIO/platform.h external_openimageio/src/include/OpenImageIO/platform.h
--- orig/src/include/OpenImageIO/platform.h	2020-05-10 21:43:52 -0600
-+++ external_openimageio/src/include/OpenImageIO/platform.h	2020-05-13 17:04:36 -0600
-@@ -41,6 +41,9 @@
- #    ifndef NOMINMAX
- #        define NOMINMAX
- #    endif
-+#    ifndef NOGDI
-+#        define NOGDI
-+#    endif
- #    include <windows.h>
- #endif
- 
--- a/build_files/build_environment/patches/openimageio_gdi.diff
+++ b/build_files/build_environment/patches/openimageio_gdi.diff
@@ -0,0 +1,26 @@
+Index: OpenImageIO/osdep.h
+===================================================================
+--- OpenImageIO/osdep.h	(revision 61595)
+++ OpenImageIO/osdep.h	(working copy)
+@@ -34,6 +34,7 @@
+ # define WIN32_LEAN_AND_MEAN
+ # define VC_EXTRALEAN
+ # define NOMINMAX
+# define NOGDI
+ # include <windows.h>
+ #endif
+ 
+Index: OpenImageIO/platform.h
+===================================================================
+--- OpenImageIO/platform.h	(revision 61595)
+++ OpenImageIO/platform.h	(working copy)
+@@ -77,6 +77,9 @@
+ # ifndef NOMINMAX
+ #   define NOMINMAX
+ # endif
+# ifndef NOGDI
+#   define NOGDI
+# endif
+ # include <windows.h>
+ #endif
+ 
--- a/build_files/build_environment/patches/openimageio_idiff.diff
+++ b/build_files/build_environment/patches/openimageio_idiff.diff
@@ -0,0 +1,13 @@
+--- idiff.cpp	2016-11-18 11:42:01 -0700
+++ idiff.cpp	2016-11-18 11:41:25 -0700
+@@ -308,8 +308,10 @@
+ // printed with three digit exponent. We change this behaviour to fit
+ // Linux way
+ #ifdef _MSC_VER
+#if _MSC_VER < 1900
+                 _set_output_format(_TWO_DIGIT_EXPONENT);
+ #endif
+#endif
+                 std::streamsize precis = std::cout.precision();
+                 std::cout << "  " << cr.nwarn << " pixels (" 
+                           << std::setprecision(3) << (100.0*cr.nwarn / npels) 
--- a/build_files/build_environment/patches/openimageio_static_libs.diff
+++ b/build_files/build_environment/patches/openimageio_static_libs.diff
@@ -0,0 +1,22 @@
+diff -Naur external_openimageio.orig/src/cmake/compiler.cmake external_openimageio/src/cmake/compiler.cmake
+--- external_openimageio.orig/src/cmake/compiler.cmake	2018-07-31 23:45:19 -0600
+++ external_openimageio/src/cmake/compiler.cmake	2018-08-16 12:50:12 -0600
+@@ -152,6 +152,7 @@
+     add_definitions (-D_CRT_NONSTDC_NO_WARNINGS)
+     add_definitions (-D_SCL_SECURE_NO_WARNINGS)
+     add_definitions (-DJAS_WIN_MSVC_BUILD)
+    add_definitions (-DOPJ_STATIC)
+ endif (MSVC)
+ 
+ # Use ccache if found
+--- external_openimageio.orig/CMakeLists.txt	2018-07-31 23:45:19 -0600
+++ external_openimageio/CMakeLists.txt	2018-08-17 15:22:56 -0600
+@@ -169,7 +169,7 @@
+   add_subdirectory (src/iinfo)
+   add_subdirectory (src/maketx)
+   add_subdirectory (src/oiiotool)
+-  add_subdirectory (src/testtex)
+# add_subdirectory (src/testtex)
+   add_subdirectory (src/iv)
+ endif ()
+ 
--- a/build_files/build_environment/patches/openmp.diff
+++ b/build_files/build_environment/patches/openmp.diff
@@ -1,23 +0,0 @@
-diff --git a/runtime/src/z_Linux_asm.S b/runtime/src/z_Linux_asm.S
-index 0d8885e..42aa5ad 100644
--- a/runtime/src/z_Linux_asm.S
-+++ b/runtime/src/z_Linux_asm.S
-@@ -1540,10 +1540,12 @@ __kmp_unnamed_critical_addr:
-     .comm .gomp_critical_user_,32,8
-     .data
-     .align 8
-    .global __kmp_unnamed_critical_addr
-__kmp_unnamed_critical_addr:
-+    .global ___kmp_unnamed_critical_addr
-+___kmp_unnamed_critical_addr:
-     .8byte .gomp_critical_user_
-    .size __kmp_unnamed_critical_addr,8
-+#  if !(KMP_OS_DARWIN)
-+    .size ___kmp_unnamed_critical_addr,8
-+#  endif
- #endif /* KMP_ARCH_PPC64 || KMP_ARCH_AARCH64 */
- 
- #if KMP_OS_LINUX
-
-
-
--- a/build_files/build_environment/patches/openvdb.diff
+++ b/build_files/build_environment/patches/openvdb.diff
@@ -1,73 +1,102 @@
-diff -Naur orig/cmake/FindIlmBase.cmake openvdb/cmake/FindIlmBase.cmake
--- orig/cmake/FindIlmBase.cmake	2019-12-06 13:11:33 -0700
-+++ openvdb/cmake/FindIlmBase.cmake	2020-01-16 09:06:32 -0700
-@@ -225,6 +225,12 @@
-   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-     "-${IlmBase_VERSION_MAJOR}_${IlmBase_VERSION_MINOR}.lib"
+diff -Naur openvdb.orig/openvdb/CMakeLists.txt openvdb/openvdb/CMakeLists.txt
+--- openvdb.orig/openvdb/CMakeLists.txt	2018-04-10 12:22:17 -0600
+++ openvdb/openvdb/CMakeLists.txt	2018-08-15 19:04:52 -0600
+@@ -82,6 +82,9 @@
+ IF (WIN32 AND OPENVDB_DISABLE_BOOST_IMPLICIT_LINKING)
+   ADD_DEFINITIONS ( -DBOOST_ALL_NO_LIB )
+ ENDIF ()
+if(WIN32)
+ADD_DEFINITIONS ( -D__TBB_NO_IMPLICIT_LINKAGE )
+endif()
+ 
+ FIND_PACKAGE ( Blosc REQUIRED )
+ FIND_PACKAGE ( TBB REQUIRED )
+@@ -195,6 +198,7 @@
+   ${Ilmbase_HALF_LIBRARY}
+   ${ZLIB_LIBRARY}
+   ${BLOSC_blosc_LIBRARY}
+  ${EXTRA_LIBS}
   )
-+  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-+    "_s.lib"
-+  )
-+  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-+    "_s_d.lib"
-+  )
- else()
-   if(ILMBASE_USE_STATIC_LIBS)
-     list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-diff -Naur orig/cmake/FindOpenEXR.cmake openvdb/cmake/FindOpenEXR.cmake
--- orig/cmake/FindOpenEXR.cmake	2019-12-06 13:11:33 -0700
-+++ openvdb/cmake/FindOpenEXR.cmake	2020-01-16 09:06:39 -0700
-@@ -218,6 +218,12 @@
-   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-     "-${OpenEXR_VERSION_MAJOR}_${OpenEXR_VERSION_MINOR}.lib"
+
+ IF (WIN32)
+@@ -225,13 +228,16 @@
+   ${VDB_PRINT_SOURCE_FILES}
   )
-+  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-+    "_s.lib"
+ 
+if(NOT WIN32)
+	set(EXTRA_LIBS m stdc++ dl)
+endif()
+  
+ TARGET_LINK_LIBRARIES ( vdb_print
+   openvdb_shared
+   ${CMAKE_THREAD_LIBS_INIT}
+   ${BLOSC_blosc_LIBRARY}
+-  m
+-  stdc++
+-  )
+  ${EXTRA_LIBS}
+)
+ 
+ SET ( VDB_RENDER_SOURCE_FILES cmd/openvdb_render/main.cc )
+ SET_SOURCE_FILES_PROPERTIES ( ${VDB_RENDER_SOURCE_FILES}
+@@ -249,8 +255,7 @@
+   ${Openexr_ILMIMF_LIBRARY}
+   ${Ilmbase_ILMTHREAD_LIBRARY}
+   ${Ilmbase_IEX_LIBRARY}
+-  m
+-  stdc++
+  ${EXTRA_LIBS}
+   )
+ 
+ SET ( VDB_VIEW_SOURCE_FILES
+@@ -270,7 +270,7 @@
+   PROPERTIES
+   COMPILE_FLAGS "-DOPENVDB_USE_BLOSC ${OPENVDB_USE_GLFW_FLAG} -DGL_GLEXT_PROTOTYPES=1"
+   )
+-IF (NOT WIN32)
+IF (FALSE)
+   ADD_EXECUTABLE ( vdb_view
+     ${VDB_VIEW_SOURCE_FILES}
+     )
+@@ -283,9 +288,8 @@
+     ${GLFW_LINK_LIBRARY}
+     ${GLFW_DEPENDENT_LIBRARIES}
+     ${GLEW_GLEW_LIBRARY}
+-    m
+-    stdc++
+-    )
+	${EXTRA_LIBS}
 +  )
-+  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-+    "_s_d.lib"
-+  )
- else()
-   if(OPENEXR_USE_STATIC_LIBS)
-     list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
-diff -Naur orig/openvdb/CMakeLists.txt openvdb/openvdb/CMakeLists.txt
--- orig/openvdb/CMakeLists.txt	2019-12-06 13:11:33 -0700
-+++ openvdb/openvdb/CMakeLists.txt	2020-01-16 08:56:25 -0700
-@@ -193,11 +193,12 @@
-   if(OPENVDB_DISABLE_BOOST_IMPLICIT_LINKING)
-     add_definitions(-DBOOST_ALL_NO_LIB)
-   endif()
-+  add_definitions(-D__TBB_NO_IMPLICIT_LINKAGE -DOPENVDB_OPENEXR_STATICLIB)
- endif()
+ ENDIF ()
 
- # @todo Should be target definitions
- if(WIN32)
-  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_DLL)
-+  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_STATICLIB)
- endif()
+ SET ( UNITTEST_SOURCE_FILES
+@@ -392,8 +396,7 @@
+   TARGET_LINK_LIBRARIES ( vdb_test
+     ${CPPUnit_cppunit_LIBRARY}
+     openvdb_shared
+-    m
+-    stdc++
+    ${EXTRA_LIBS}
+     )
 
- ##### Core library configuration
-diff -Naur orig/openvdb/cmd/CMakeLists.txt openvdb/openvdb/cmd/CMakeLists.txt
--- orig/openvdb/cmd/CMakeLists.txt	2019-12-06 13:11:33 -0700
-+++ openvdb/openvdb/cmd/CMakeLists.txt	2020-01-16 08:56:25 -0700
-@@ -53,7 +53,7 @@
- endif()
+   ADD_TEST ( vdb_unit_test vdb_test )
+@@ -422,7 +422,7 @@
+ ENDIF ()
 
- if(WIN32)
-  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_DLL)
-+  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_STATICLIB)
- endif()
- 
- # rpath handling
-diff -Naur orig/openvdb/unittest/CMakeLists.txt openvdb/openvdb/unittest/CMakeLists.txt
--- orig/openvdb/unittest/CMakeLists.txt	2019-12-06 13:11:33 -0700
-+++ openvdb/openvdb/unittest/CMakeLists.txt	2020-01-16 08:56:25 -0700
-@@ -49,7 +49,7 @@
- endif()
- 
- if(WIN32)
-  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_DLL)
-+  add_definitions(-D_WIN32 -DNOMINMAX -DOPENVDB_STATICLIB)
- endif()
- 
- ##### VDB unit tests
+ # Installation
+-IF ( NOT WIN32 )
+IF ( FALSE )
+   INSTALL ( TARGETS
+     vdb_view
+     DESTINATION
+diff -Naur openvdb.orig/openvdb/math/Coord.h openvdb/openvdb/math/Coord.h
+--- openvdb.orig/openvdb/math/Coord.h	2018-04-10 12:22:17 -0600
+++ openvdb/openvdb/math/Coord.h	2018-08-15 20:32:43 -0600
+@@ -35,6 +35,7 @@
+ #include <array> // for std::array
+ #include <iostream>
+ #include <limits>
+#define NOMINMAX
+ #include <openvdb/Platform.h>
+ #include "Math.h"
+ #include "Vec3.h"
--- a/build_files/build_environment/patches/osl.diff
+++ b/build_files/build_environment/patches/osl.diff
@@ -1,3 +1,15 @@
+diff -Naur OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake external_osl/src/cmake/flexbison.cmake
+--- OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake	2018-05-01 16:39:02 -0600
+++ external_osl/src/cmake/flexbison.cmake	2018-08-23 15:42:27 -0600
+@@ -77,7 +77,7 @@
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
+         ADD_CUSTOM_COMMAND ( OUTPUT ${flexoutputcxx} 
+-          COMMAND ${FLEX_EXECUTABLE} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
+          COMMAND ${FLEX_EXECUTABLE} ${FLEX_EXTRA_OPTIONS} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
+           MAIN_DEPENDENCY ${flexsrc}
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
 diff -Naur OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake.rej external_osl/src/cmake/flexbison.cmake.rej
 --- OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake.rej	1969-12-31 17:00:00 -0700
 +++ external_osl/src/cmake/flexbison.cmake.rej	2018-08-24 17:42:11 -0600
@@ -33,6 +45,18 @@ diff -Naur OpenShadingLanguage-Release-1.9.9/src/include/OSL/llvm_util.h externa
 
 private:
     class MemoryManager;
+diff -Naur OpenShadingLanguage-Release-1.9.9/src/include/OSL/oslnoise.h external_osl/src/include/OSL/oslnoise.h
+--- OpenShadingLanguage-Release-1.9.9/src/include/OSL/oslnoise.h	2018-05-01 16:39:02 -0600
+++ external_osl/src/include/OSL/oslnoise.h	2018-08-24 17:42:11 -0600
+@@ -762,7 +762,7 @@
+ // packed into a float4. We assume T is float and VECTYPE is float4,
+ // but it also works if T is Dual2<float> and VECTYPE is Dual2<float4>.
+ template<typename T, typename VECTYPE>
+-OIIO_FORCEINLINE T bilerp (VECTYPE abcd, T u, T v) {
+OIIO_FORCEINLINE T bilerp (VECTYPE& abcd, T u, T v) {
+     VECTYPE xx = OIIO::lerp (abcd, OIIO::simd::shuffle<1,1,3,3>(abcd), u);
+     return OIIO::simd::extract<0>(OIIO::lerp (xx,OIIO::simd::shuffle<2>(xx), v));
+ }
 diff -Naur OpenShadingLanguage-Release-1.9.9/src/liboslexec/llvm_util.cpp external_osl/src/liboslexec/llvm_util.cpp
 --- OpenShadingLanguage-Release-1.9.9/src/liboslexec/llvm_util.cpp	2018-05-01 16:39:02 -0600
 +++ external_osl/src/liboslexec/llvm_util.cpp	2018-08-25 14:04:27 -0600
@@ -48,22 +72,3 @@ diff -Naur OpenShadingLanguage-Release-1.9.9/src/liboslexec/llvm_util.cpp extern
 
 size_t
 LLVM_Util::total_jit_memory_held ()
-diff -Naur OpenShadingLanguage-Release-1.9.9/CMakeLists.txt external_osl/CMakeLists.txt
- --- orig/CMakeLists.txt	2020-01-27 16:22:31 -0700
-+++ external_osl/CMakeLists.txt	2020-05-13 18:04:52 -0600
-@@ -102,10 +102,11 @@
- set (OPTIX_EXTRA_LIBS CACHE STRING "Extra lib targets needed for OptiX")
- set (CUDA_TARGET_ARCH "sm_35" CACHE STRING "CUDA GPU architecture (e.g. sm_35)")
- 
-# set (USE_OIIO_STATIC ON CACHE BOOL "If OIIO is built static")
-# if (USE_OIIO_STATIC)
-#     add_definitions ("-DOIIO_STATIC_BUILD=1")
-# endif ()
-+set (USE_OIIO_STATIC ON CACHE BOOL "If OIIO is built static")
-+if (USE_OIIO_STATIC)
-+    add_definitions ("-DOIIO_STATIC_BUILD=1")
-+    add_definitions ("-DOIIO_STATIC_DEFINE=1")
-+endif ()
- 
- set (OSL_NO_DEFAULT_TEXTURESYSTEM OFF CACHE BOOL "Do not use create a raw OIIO::TextureSystem")
- if (OSL_NO_DEFAULT_TEXTURESYSTEM)
--- a/build_files/build_environment/patches/pthreads.diff
+++ b/build_files/build_environment/patches/pthreads.diff
@@ -1,12 +1,13 @@
-diff -Naur orig/Makefile external_pthreads/Makefile
--- orig/Makefile	2018-08-08 04:47:40 -0600
-+++ external_pthreads/Makefile	2020-05-09 11:20:28 -0600
-@@ -185,7 +185,7 @@
- 	@ $(MAKE) /E /nologo XCFLAGS="/MTd" EHFLAGS="$(VSEFLAGSD) /D__PTW32_STATIC_LIB /D__PTW32_BUILD_INLINED" CLEANUP=__PTW32_CLEANUP_SEH pthreadVSE$(PTW32_VER_DEBUG).inlined_static_stamp
+--- pthread.h.orig	2012-05-26 22:16:45 -0600
+++ pthread.h	2016-04-01 09:20:36 -0600
+@@ -109,6 +109,10 @@
+ /* Include everything */
+ #endif
 
- VC-static:
-	@ $(MAKE) /E /nologo XCFLAGS="/MT" EHFLAGS="$(VCFLAGS) /D__PTW32_STATIC_LIB /D__PTW32_BUILD_INLINED" CLEANUP=__PTW32_CLEANUP_C pthreadVC$(PTW32_VER).inlined_static_stamp
-+	@ $(MAKE) /E /nologo XCFLAGS="/MD" EHFLAGS="$(VCFLAGS) /D__PTW32_STATIC_LIB /D__PTW32_BUILD_INLINED" CLEANUP=__PTW32_CLEANUP_C pthreadVC$(PTW32_VER).inlined_static_stamp
- 
- VC-static-debug:
- 	@ $(MAKE) /E /nologo XCFLAGS="/MTd" EHFLAGS="$(VCFLAGSD) /D__PTW32_STATIC_LIB /D__PTW32_BUILD_INLINED" CLEANUP=__PTW32_CLEANUP_C pthreadVC$(PTW32_VER_DEBUG).inlined_static_stamp
+#if _MSC_VER >= 1900
+#   define HAVE_STRUCT_TIMESPEC 1
+#endif
+
+ #if defined(_UWIN)
+ #   define HAVE_STRUCT_TIMESPEC 1
+ #   define HAVE_SIGNAL_H        1
--- a/build_files/build_environment/patches/python_macos.diff
+++ b/build_files/build_environment/patches/python_macos.diff
@@ -1,289 +0,0 @@
-diff -ru a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
--- a/Doc/library/ctypes.rst	2020-03-10 07:11:12.000000000 +0100
-+++ b/Doc/library/ctypes.rst	2020-07-14 08:10:10.000000000 +0200
-@@ -1551,6 +1551,13 @@
-       value usable as argument (integer, string, ctypes instance).  This allows
-       defining adapters that can adapt custom objects as function parameters.
- 
-+   .. attribute:: variadic
-+
-+      Assign a boolean to specify that the function takes a variable number of
-+      arguments.   This does not matter on most platforms, but for Apple arm64
-+      platforms variadic functions have a different calling convention than
-+      normal functions.
-+
-    .. attribute:: errcheck
- 
-       Assign a Python function or another callable to this attribute. The
-diff -ru a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
--- a/Modules/_ctypes/_ctypes.c	2020-03-10 07:11:12.000000000 +0100
-+++ b/Modules/_ctypes/_ctypes.c	2020-07-14 08:14:41.000000000 +0200
-@@ -3175,6 +3175,35 @@
- }
- 
- static int
-+PyCFuncPtr_set_variadic(PyCFuncPtrObject *self, PyObject *ob, void *Py_UNUSED(ignored))
-+{
-+    StgDictObject *dict = PyObject_stgdict((PyObject *)self);
-+    assert(dict);
-+    int r = PyObject_IsTrue(ob);
-+    if (r == 1) {
-+        dict->flags |= FUNCFLAG_VARIADIC;
-+        return 0;
-+    } else if (r == 0) {
-+        dict->flags &= ~FUNCFLAG_VARIADIC;
-+        return 0;
-+    } else {
-+        return -1;
-+    }
-+}
-+
-+static PyObject *
-+PyCFuncPtr_get_variadic(PyCFuncPtrObject *self, void *Py_UNUSED(ignored))
-+{
-+    StgDictObject *dict = PyObject_stgdict((PyObject *)self);
-+    assert(dict); /* Cannot be NULL for PyCFuncPtrObject instances */
-+    if (dict->flags & FUNCFLAG_VARIADIC)
-+        Py_RETURN_TRUE;
-+    else
-+        Py_RETURN_FALSE;
-+}
-+
-+
-+static int
- PyCFuncPtr_set_argtypes(PyCFuncPtrObject *self, PyObject *ob, void *Py_UNUSED(ignored))
- {
-     PyObject *converters;
-@@ -5632,6 +5661,7 @@
-     PyModule_AddObject(m, "FUNCFLAG_USE_ERRNO", PyLong_FromLong(FUNCFLAG_USE_ERRNO));
-     PyModule_AddObject(m, "FUNCFLAG_USE_LASTERROR", PyLong_FromLong(FUNCFLAG_USE_LASTERROR));
-     PyModule_AddObject(m, "FUNCFLAG_PYTHONAPI", PyLong_FromLong(FUNCFLAG_PYTHONAPI));
-+    PyModule_AddObject(m, "FUNCFLAG_VARIADIC", PyLong_FromLong(FUNCFLAG_VARIADIC));
-     PyModule_AddStringConstant(m, "__version__", "1.1.0");
- 
-     PyModule_AddObject(m, "_memmove_addr", PyLong_FromVoidPtr(memmove));
-diff -ru a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
--- a/Modules/_ctypes/callproc.c	2020-03-10 07:11:12.000000000 +0100
-+++ b/Modules/_ctypes/callproc.c	2020-07-14 08:18:33.000000000 +0200
-@@ -767,7 +767,8 @@
-                                   ffi_type **atypes,
-                                   ffi_type *restype,
-                                   void *resmem,
-                                  int argcount)
-+                                  int argcount,
-+                                  int argtypecount)
- {
-     PyThreadState *_save = NULL; /* For Py_BLOCK_THREADS and Py_UNBLOCK_THREADS */
-     PyObject *error_object = NULL;
-@@ -793,15 +794,38 @@
-     if ((flags & FUNCFLAG_CDECL) == 0)
-         cc = FFI_STDCALL;
- #endif
-    if (FFI_OK != ffi_prep_cif(&cif,
-                               cc,
-                               argcount,
-                               restype,
-                               atypes)) {
-        PyErr_SetString(PyExc_RuntimeError,
-                        "ffi_prep_cif failed");
-        return -1;
-    }
-+#if HAVE_FFI_PREP_CIF_VAR
-+    /* Everyone SHOULD set f.variadic=True on variadic function pointers, but
-+     * lots of existing code will not.  If there's at least one arg and more
-+     * args are passed than are defined in the prototype, then it must be a
-+     * variadic function. */
-+    if ((flags & FUNCFLAG_VARIADIC) ||
-+        (argtypecount != 0 && argcount > argtypecount))
-+    {
-+        if (FFI_OK != ffi_prep_cif_var(&cif,
-+                                       cc,
-+                                       argtypecount,
-+                                       argcount,
-+                                       restype,
-+                                       atypes)) {
-+            PyErr_SetString(PyExc_RuntimeError,
-+                            "ffi_prep_cif_var failed");
-+            return -1;
-+        }
-+    } else {
-+#endif
-+        if (FFI_OK != ffi_prep_cif(&cif,
-+                                   cc,
-+                                   argcount,
-+                                   restype,
-+                                   atypes)) {
-+            PyErr_SetString(PyExc_RuntimeError,
-+                            "ffi_prep_cif failed");
-+            return -1;
-+        }
-+#if HAVE_FFI_PREP_CIF_VAR
-+     }
-+#endif
- 
-     if (flags & (FUNCFLAG_USE_ERRNO | FUNCFLAG_USE_LASTERROR)) {
-         error_object = _ctypes_get_errobj(&space);
-@@ -1185,9 +1209,8 @@
- 
-     if (-1 == _call_function_pointer(flags, pProc, avalues, atypes,
-                                      rtype, resbuf,
-                                     Py_SAFE_DOWNCAST(argcount,
-                                                      Py_ssize_t,
-                                                      int)))
-+                                     Py_SAFE_DOWNCAST(argcount, Py_ssize_t, int),
-+                                     Py_SAFE_DOWNCAST(argtype_count, Py_ssize_t, int)))
-         goto cleanup;
- 
- #ifdef WORDS_BIGENDIAN
-diff -ru a/Modules/_ctypes/ctypes.h b/Modules/_ctypes/ctypes.h
--- a/Modules/_ctypes/ctypes.h	2020-03-10 07:11:12.000000000 +0100
-+++ b/Modules/_ctypes/ctypes.h	2020-07-14 08:30:53.000000000 +0200
-@@ -285,6 +285,7 @@
- #define FUNCFLAG_PYTHONAPI 0x4
- #define FUNCFLAG_USE_ERRNO 0x8
- #define FUNCFLAG_USE_LASTERROR 0x10
-+#define FUNCFLAG_VARIADIC 0x20
- 
- #define TYPEFLAG_ISPOINTER 0x100
- #define TYPEFLAG_HASPOINTER 0x200
-diff -ru a/configure b/configure
--- a/configure	2020-03-10 07:11:12.000000000 +0100
-+++ b/configure	2020-07-14 08:03:27.000000000 +0200
-@@ -3374,7 +3374,7 @@
-   # has no effect, don't bother defining them
-   Darwin/[6789].*)
-     define_xopen_source=no;;
-  Darwin/1[0-9].*)
-+  Darwin/[12][0-9].*)
-     define_xopen_source=no;;
-   # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
-   # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
-@@ -9251,6 +9251,9 @@
-     	ppc)
-     		MACOSX_DEFAULT_ARCH="ppc64"
-     		;;
-+        arm64)
-+            MACOSX_DEFAULT_ARCH="arm64"
-+            ;;
-     	*)
-     		as_fn_error $? "Unexpected output of 'arch' on OSX" "$LINENO" 5
-     		;;
-diff -ru a/configure.ac b/configure.ac
--- a/configure.ac	2020-03-10 07:11:12.000000000 +0100
-+++ b/configure.ac	2020-07-14 08:03:27.000000000 +0200
-@@ -2456,6 +2456,9 @@
-     	ppc)
-     		MACOSX_DEFAULT_ARCH="ppc64"
-     		;;
-+        arm64)
-+            MACOSX_DEFAULT_ARCH="arm64"
-+            ;;
-     	*)
-     		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
-     		;;
-diff -ru a/setup.py b/setup.py
--- a/setup.py	2020-03-10 07:11:12.000000000 +0100
-+++ b/setup.py	2020-07-14 08:28:12.000000000 +0200
-@@ -141,6 +141,13 @@
-             os.unlink(tmpfile)
- 
-     return MACOS_SDK_ROOT
-+ 
-+def is_macosx_at_least(vers):
-+    if host_platform == 'darwin':
-+        dep_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
-+        if dep_target:
-+            return tuple(map(int, dep_target.split('.'))) >= vers
-+    return False
- 
- def is_macosx_sdk_path(path):
-     """
-@@ -150,6 +157,13 @@
-                 or path.startswith('/System/')
-                 or path.startswith('/Library/') )
- 
-+def grep_headers_for(function, headers):
-+    for header in headers:
-+        with open(header, 'r') as f:
-+            if function in f.read():
-+                return True
-+    return False
-+
- def find_file(filename, std_dirs, paths):
-     """Searches for the directory where a given file is located,
-     and returns a possibly-empty list of additional directories, or None
-@@ -1972,7 +1986,11 @@
-         return True
- 
-     def detect_ctypes(self, inc_dirs, lib_dirs):
-        self.use_system_libffi = False
-+        if not sysconfig.get_config_var("LIBFFI_INCLUDEDIR") and is_macosx_at_least((10,15)):
-+            self.use_system_libffi = True
-+        else:
-+            self.use_system_libffi = '--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS")
-+
-         include_dirs = []
-         extra_compile_args = []
-         extra_link_args = []
-@@ -2016,32 +2034,48 @@
-         ext_test = Extension('_ctypes_test',
-                      sources=['_ctypes/_ctypes_test.c'],
-                      libraries=['m'])
-+        ffi_inc = sysconfig.get_config_var("LIBFFI_INCLUDEDIR")
-+        ffi_lib = None
-+
-         self.extensions.extend([ext, ext_test])
- 
-         if host_platform == 'darwin':
-            if '--with-system-ffi' not in sysconfig.get_config_var("CONFIG_ARGS"):
-+            if not self.use_system_libffi:
-                 return
-            # OS X 10.5 comes with libffi.dylib; the include files are
-            # in /usr/include/ffi
-            inc_dirs.append('/usr/include/ffi')
-
-        ffi_inc = [sysconfig.get_config_var("LIBFFI_INCLUDEDIR")]
-        if not ffi_inc or ffi_inc[0] == '':
-            ffi_inc = find_file('ffi.h', [], inc_dirs)
-        if ffi_inc is not None:
-            ffi_h = ffi_inc[0] + '/ffi.h'
-+            ffi_in_sdk = os.path.join(macosx_sdk_root(), "usr/include/ffi")
-+            if os.path.exists(ffi_in_sdk):
-+                ffi_inc = ffi_in_sdk
-+                ffi_lib = 'ffi'
-+            else:
-+                # OS X 10.5 comes with libffi.dylib; the include files are
-+                # in /usr/include/ffi
-+                ffi_inc_dirs.append('/usr/include/ffi')
-+
-+        if not ffi_inc:
-+            found = find_file('ffi.h', [], ffi_inc_dirs)
-+            if found:
-+                ffi_inc = found[0]
-+        if ffi_inc:
-+            ffi_h = ffi_inc + '/ffi.h'
-             if not os.path.exists(ffi_h):
-                 ffi_inc = None
-                 print('Header file {} does not exist'.format(ffi_h))
-        ffi_lib = None
-        if ffi_inc is not None:
-+        if ffi_lib is None and ffi_inc:
-             for lib_name in ('ffi', 'ffi_pic'):
-                 if (self.compiler.find_library_file(lib_dirs, lib_name)):
-                     ffi_lib = lib_name
-                     break
- 
-         if ffi_inc and ffi_lib:
-            ext.include_dirs.extend(ffi_inc)
-+            ffi_headers = glob(os.path.join(ffi_inc, '*.h'))
-+            if grep_headers_for('ffi_closure_alloc', ffi_headers):
-+                try:
-+                    sources.remove('_ctypes/malloc_closure.c')
-+                except ValueError:
-+                    pass
-+            if grep_headers_for('ffi_prep_cif_var', ffi_headers):
-+                ext.extra_compile_args.append("-DHAVE_FFI_PREP_CIF_VAR=1")
-+            ext.include_dirs.append(ffi_inc)
-             ext.libraries.append(ffi_lib)
-             self.use_system_libffi = True
- 
--- a/build_files/build_environment/patches/sqlite.diff
+++ b/build_files/build_environment/patches/sqlite.diff
@@ -1,14 +0,0 @@
-Only in external_sqlite_orig: config.log
-diff -ru external_sqlite_orig/config.sub external_sqlite/config.sub
--- external_sqlite_orig/config.sub	2020-07-10 14:06:42.000000000 +0200
-+++ external_sqlite/config.sub	2020-07-10 14:10:24.000000000 +0200
-@@ -314,6 +314,7 @@
- 	# Recognize the basic CPU types with company name.
- 	580-* \
- 	| a29k-* \
-+	| aarch64-* \
- 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
- 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
-Only in external_sqlite: mksourceid
-Only in external_sqlite: sqlite3session.h
--- a/Show More
+++ b/Show More