Bump version to 3.0.1 release

Fix T95099: Have launcher wait for Blender exit
unity launches blender in background mode to do some file conversions, ever since the launcher got introduced this process broke. The root cause here is: Unity looks up the default program to launch .blend files with, which is now the launcher, then launches it in background mode with a script to export the data. The launcher however was designed to exit as quickly as possible so there would not be an extra background process lingering. It does not wait for blender to exit and does not pass back any error codes. This broke unity's workflow since it assumed if the process exits and succeeds the data *must* be ready for reading which no longer holds true. This change keeps the launcher design as was previously, *except* when launching in background mode, then it waits and passes back any error codes, thus restoring unity's workflow. Differential Revision: https://developer.blender.org/D13894 Reviewed by: LazyDodo, Brecht
2022-01-25 18:19:44 +01:00 · 2022-01-25 09:44:31 +01:00 · 2022-01-24 10:28:40 -06:00 · 2022-01-20 21:13:27 +01:00 · 2022-01-20 21:12:36 +01:00 · 2022-01-20 21:11:48 +01:00
7519 changed files with 272679 additions and 292946 deletions
--- a/.clang-format
+++ b/.clang-format
@@ -205,7 +205,6 @@ ForEachMacros:
  - FOREACH_SCENE_COLLECTION_BEGIN
  - FOREACH_SCENE_OBJECT_BEGIN
  - FOREACH_SELECTED_BASE_BEGIN
-  - FOREACH_SELECTED_BEZT_BEGIN
  - FOREACH_SELECTED_EDITABLE_OBJECT_BEGIN
  - FOREACH_SELECTED_OBJECT_BEGIN
  - FOREACH_TRANS_DATA_CONTAINER
@@ -269,7 +268,6 @@ ForEachMacros:
 StatementMacros:
  - PyObject_HEAD
  - PyObject_VAR_HEAD
-  - ccl_gpu_kernel_postfix

 MacroBlockBegin: "^BSDF_CLOSURE_CLASS_BEGIN$"
 MacroBlockEnd: "^BSDF_CLOSURE_CLASS_END$"
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -12,8 +12,6 @@ Checks:  >
  -readability-avoid-const-params-in-decls,
  -readability-simplify-boolean-expr,
  -readability-make-member-function-const,
-  -readability-suspicious-call-argument,
-  -readability-redundant-member-init,

  -readability-misleading-indentation,

@@ -27,8 +25,6 @@ Checks:  >
  -bugprone-branch-clone,
  -bugprone-macro-parentheses,
  -bugprone-reserved-identifier,
-  -bugprone-easily-swappable-parameters,
-  -bugprone-implicit-widening-of-multiplication-result,

  -bugprone-sizeof-expression,
  -bugprone-integer-division,
@@ -44,8 +40,7 @@ Checks:  >
  -modernize-pass-by-value,
  # Cannot be enabled yet, because using raw string literals in tests breaks
  # the windows compiler currently.
-  -modernize-raw-string-literal,
-  -modernize-return-braced-init-list
+  -modernize-raw-string-literal

 CheckOptions:
  - key: modernize-use-default-member-init.UseAssignment
--- a/.editorconfig
+++ b/.editorconfig
@@ -42,12 +42,3 @@ insert_final_newline = true
 indent_style = space
 indent_size = 3
 max_line_length = 120
-
-# Makefile
-[{Makefile,GNUmakefile}]
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = tab
-indent_size = 4
-max_line_length = 120
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,23 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-# Copyright 2006 Blender Foundation. All rights reserved.
+# ***** 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.
+#
+# The Original Code is Copyright (C) 2006, Blender Foundation
+# All rights reserved.
+#
+# ***** END GPL LICENSE BLOCK *****

 #-----------------------------------------------------------------------------
 # We don't allow in-source builds. This causes no end of troubles because
@@ -139,9 +157,8 @@ option(WITH_BLENDER "Build blender (disable to build only the blender player)" O
 mark_as_advanced(WITH_BLENDER)

 if(APPLE)
-  # In future, can be used with `quicklookthumbnailing/qlthumbnailreply` to create file
-  # thumbnails for say Finder. Turn it off for now.
-  option(WITH_BLENDER_THUMBNAILER "Build \"blender-thumbnailer\" thumbnail extraction utility" OFF)
+  # Currently this causes a build error linking, disable.
+  set(WITH_BLENDER_THUMBNAILER OFF)
 elseif(WIN32)
  option(WITH_BLENDER_THUMBNAILER "Build \"BlendThumb.dll\" helper for Windows explorer integration" ON)
 else()
@@ -170,13 +187,6 @@ mark_as_advanced(CPACK_OVERRIDE_PACKAGENAME)
 mark_as_advanced(BUILDINFO_OVERRIDE_DATE)
 mark_as_advanced(BUILDINFO_OVERRIDE_TIME)

-if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.16")
-  option(WITH_UNITY_BUILD   "Enable unity build for modules that support it to improve compile times" ON)
-  mark_as_advanced(WITH_UNITY_BUILD)
-else()
-  set(WITH_UNITY_BUILD OFF)
-endif()
-
 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)
@@ -257,12 +267,10 @@ endif()
 if(UNIX AND NOT APPLE)
  option(WITH_SYSTEM_GLEW "Use GLEW OpenGL wrapper library provided by the operating system" OFF)
  option(WITH_SYSTEM_GLES "Use OpenGL ES library provided by the operating system"           ON)
-  option(WITH_SYSTEM_FREETYPE "Use the freetype library provided by the operating system" OFF)
 else()
  # not an option for other OS's
  set(WITH_SYSTEM_GLEW OFF)
  set(WITH_SYSTEM_GLES OFF)
-  set(WITH_SYSTEM_FREETYPE OFF)
 endif()


@@ -284,7 +292,6 @@ option(WITH_IMAGE_TIFF          "Enable LibTIFF Support" ON)
 option(WITH_IMAGE_DDS           "Enable DDS Image Support" ON)
 option(WITH_IMAGE_CINEON        "Enable CINEON and DPX Image Support" ON)
 option(WITH_IMAGE_HDR           "Enable HDR Image Support" ON)
-option(WITH_IMAGE_WEBP          "Enable WebP Image Support" ON)

 # Audio/Video format support
 option(WITH_CODEC_AVI           "Enable Blenders own AVI file support (raw/jpeg)" ON)
@@ -302,7 +309,7 @@ option(WITH_USD                 "Enable Universal Scene Description (USD) Suppor
 option(WITH_OPENCOLLADA   "Enable OpenCollada Support (http://www.opencollada.org)" ON)

 # Sound output
-option(WITH_SDL           "Enable SDL for sound" ON)
+option(WITH_SDL           "Enable SDL for sound and joystick support" ON)
 option(WITH_OPENAL        "Enable OpenAL Support (http://www.openal.org)" ON)
 if(APPLE)
  option(WITH_COREAUDIO    "Enable CoreAudio for audio support on macOS" ON)
@@ -404,13 +411,10 @@ option(WITH_CYCLES                   "Enable Cycles Render Engine" ON)
 option(WITH_CYCLES_OSL               "Build Cycles with OpenShadingLanguage support" ON)
 option(WITH_CYCLES_EMBREE            "Build Cycles with Embree support" ON)
 option(WITH_CYCLES_LOGGING           "Build Cycles with logging support" ON)
-option(WITH_CYCLES_DEBUG             "Build Cycles with options useful for debugging (e.g., MIS)" OFF)

 option(WITH_CYCLES_STANDALONE        "Build Cycles standalone application" OFF)
 option(WITH_CYCLES_STANDALONE_GUI    "Build Cycles standalone with GUI" OFF)

-option(WITH_CYCLES_HYDRA_RENDER_DELEGATE "Build Cycles Hydra render delegate" OFF)
-
 option(WITH_CYCLES_DEBUG_NAN         "Build Cycles with additional asserts for detecting NaNs and invalid values" OFF)
 option(WITH_CYCLES_NATIVE_ONLY       "Build Cycles with native kernel only (which fits current CPU, use for development only)" OFF)
 option(WITH_CYCLES_KERNEL_ASAN       "Build Cycles kernels with address sanitizer when WITH_COMPILER_ASAN is on, even if it's very slow" OFF)
@@ -421,40 +425,30 @@ mark_as_advanced(WITH_CYCLES_DEBUG_NAN)
 mark_as_advanced(WITH_CYCLES_NATIVE_ONLY)

 # NVIDIA CUDA & OptiX
-if(NOT APPLE)
-  option(WITH_CYCLES_DEVICE_CUDA       "Enable Cycles NVIDIA CUDA compute support" ON)
-  option(WITH_CYCLES_DEVICE_OPTIX      "Enable Cycles NVIDIA OptiX support" ON)
-  mark_as_advanced(WITH_CYCLES_DEVICE_CUDA)
+option(WITH_CYCLES_DEVICE_CUDA       "Enable Cycles NVIDIA CUDA compute support" ON)
+option(WITH_CYCLES_DEVICE_OPTIX      "Enable Cycles NVIDIA OptiX support" ON)
+mark_as_advanced(WITH_CYCLES_DEVICE_CUDA)

-  option(WITH_CYCLES_CUDA_BINARIES     "Build Cycles NVIDIA CUDA binaries" OFF)
-  set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 sm_86 compute_75 CACHE STRING "CUDA architectures to build binaries for")
-  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)
-  option(WITH_CUDA_DYNLOAD             "Dynamically load CUDA libraries at runtime (for developers, makes cuda-gdb work)" ON)
-  mark_as_advanced(CYCLES_CUDA_BINARIES_ARCH)
-  mark_as_advanced(WITH_CYCLES_CUBIN_COMPILER)
-  mark_as_advanced(WITH_CYCLES_CUDA_BUILD_SERIAL)
-  mark_as_advanced(WITH_CUDA_DYNLOAD)
-endif()
+option(WITH_CYCLES_CUDA_BINARIES     "Build Cycles NVIDIA CUDA binaries" OFF)
+set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 sm_86 compute_75 CACHE STRING "CUDA architectures to build binaries for")
+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)
+option(WITH_CUDA_DYNLOAD             "Dynamically load CUDA libraries at runtime (for developers, makes cuda-gdb work)" ON)
+mark_as_advanced(CYCLES_CUDA_BINARIES_ARCH)
+mark_as_advanced(WITH_CYCLES_CUBIN_COMPILER)
+mark_as_advanced(WITH_CYCLES_CUDA_BUILD_SERIAL)
+mark_as_advanced(WITH_CUDA_DYNLOAD)

 # AMD HIP
-if(NOT APPLE)
-  if(WIN32)
-    option(WITH_CYCLES_DEVICE_HIP        "Enable Cycles AMD HIP support" ON)
-  else()
-    option(WITH_CYCLES_DEVICE_HIP        "Enable Cycles AMD HIP support" OFF)
-  endif()
-
-  option(WITH_CYCLES_HIP_BINARIES      "Build Cycles AMD HIP binaries" OFF)
-  set(CYCLES_HIP_BINARIES_ARCH gfx1010 gfx1011 gfx1012 gfx1030 gfx1031 gfx1032 gfx1034 CACHE STRING "AMD HIP architectures to build binaries for")
-  mark_as_advanced(WITH_CYCLES_DEVICE_HIP)
-  mark_as_advanced(CYCLES_HIP_BINARIES_ARCH)
-endif()
-
-# Apple Metal
-if(APPLE)
-  option(WITH_CYCLES_DEVICE_METAL       "Enable Cycles Apple Metal compute support" ON)
+if(WIN32)
+  option(WITH_CYCLES_DEVICE_HIP        "Enable Cycles AMD HIP support" ON)
+else()
+  option(WITH_CYCLES_DEVICE_HIP        "Enable Cycles AMD HIP support" OFF)
 endif()
+option(WITH_CYCLES_HIP_BINARIES      "Build Cycles AMD HIP binaries" OFF)
+set(CYCLES_HIP_BINARIES_ARCH gfx1010 gfx1011 gfx1012 gfx1030 gfx1031 gfx1032 gfx1034 CACHE STRING "AMD HIP architectures to build binaries for")
+mark_as_advanced(WITH_CYCLES_DEVICE_HIP)
+mark_as_advanced(CYCLES_HIP_BINARIES_ARCH)

 # Draw Manager
 option(WITH_DRAW_DEBUG "Add extra debug capabilities to Draw Manager" OFF)
@@ -499,13 +493,15 @@ if(WIN32)
 endif()

 # This should be turned off when Blender enter beta/rc/release
-if("${BLENDER_VERSION_CYCLE}" STREQUAL "alpha")
-  set(WITH_EXPERIMENTAL_FEATURES ON)
-else()
+if("${BLENDER_VERSION_CYCLE}" STREQUAL "release" OR
+   "${BLENDER_VERSION_CYCLE}" STREQUAL "rc" OR
+   "${BLENDER_VERSION_CYCLE}" STREQUAL "beta")
  set(WITH_EXPERIMENTAL_FEATURES OFF)
+else()
+  set(WITH_EXPERIMENTAL_FEATURES ON)
 endif()

-# Unit testing
+# 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)
@@ -524,29 +520,14 @@ option(WITH_OPENGL              "When off limits visibility of the opengl header
 option(WITH_GLEW_ES             "Switches to experimental copy of GLEW that has support for OpenGL ES. (temporary option for development purposes)" OFF)
 option(WITH_GL_EGL              "Use the EGL OpenGL system library instead of the platform specific OpenGL system library (CGL, glX, or WGL)"       OFF)
 option(WITH_GL_PROFILE_ES20     "Support using OpenGL ES 2.0. (through either EGL or the AGL/WGL/XGL 'es20' profile)"                               OFF)
-option(WITH_GPU_SHADER_BUILDER  "Shader builder is a developer option enabling linting on GLSL during compilation"                                  OFF)

 mark_as_advanced(
  WITH_OPENGL
  WITH_GLEW_ES
  WITH_GL_EGL
  WITH_GL_PROFILE_ES20
-  WITH_GPU_SHADER_BUILDER
 )

-# Metal
-
-if (APPLE)
-  option(WITH_METAL_BACKEND "Use Metal for graphics instead of (or as well as) OpenGL on macOS." OFF)
-  mark_as_advanced(WITH_METAL_BACKEND)
-else()
-  set(WITH_METAL_BACKEND OFF)
-endif()
-
-if (WITH_METAL_BACKEND)
-  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment version" FORCE)
-endif()
-
 if(WIN32)
  option(WITH_GL_ANGLE "Link with the ANGLE library, an OpenGL ES 2.0 implementation based on Direct3D, instead of the system OpenGL library." OFF)
  mark_as_advanced(WITH_GL_ANGLE)
@@ -562,18 +543,12 @@ if(WIN32)
  set(CPACK_INSTALL_PREFIX ${CMAKE_GENERIC_PROGRAM_FILES}/${})
 endif()

-# Compiler tool-chain.
-if(UNIX AND NOT APPLE)
-  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")
-    option(WITH_LINKER_MOLD "Use ld.mold linker which is usually faster than ld.gold & ld.lld." OFF)
-    mark_as_advanced(WITH_LINKER_MOLD)
-  endif()
+# Compiler toolchain
+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()

 option(WITH_COMPILER_ASAN "Build and link against address sanitizer (only for Debug & RelWithDebInfo targets)." OFF)
@@ -684,7 +659,7 @@ if(WIN32 OR XCODE)
  option(IDE_GROUP_PROJECTS_IN_FOLDERS "Organize the projects according to source folder structure." ON)
  mark_as_advanced(IDE_GROUP_PROJECTS_IN_FOLDERS)

-  if(IDE_GROUP_PROJECTS_IN_FOLDERS)
+  if (IDE_GROUP_PROJECTS_IN_FOLDERS)
    set_property(GLOBAL PROPERTY USE_FOLDERS ON)
  endif()
 endif()
@@ -709,12 +684,9 @@ if(UNIX AND NOT APPLE)
 endif()

 # Installation process.
-set(POSTINSTALL_SCRIPT "" CACHE FILEPATH "Run given CMake script after installation process")
+option(POSTINSTALL_SCRIPT "Run given CMake script after installation process" OFF)
 mark_as_advanced(POSTINSTALL_SCRIPT)

-set(POSTCONFIGURE_SCRIPT "" CACHE FILEPATH "Run given CMake script as the last step of CMake configuration")
-mark_as_advanced(POSTCONFIGURE_SCRIPT)
-
 # end option(...)


@@ -745,10 +717,9 @@ endif()
 #-----------------------------------------------------------------------------
 # Check for conflicting/unsupported configurations

-if(NOT WITH_BLENDER AND NOT WITH_CYCLES_STANDALONE AND NOT WITH_CYCLES_HYDRA_RENDER_DELEGATE)
+if(NOT WITH_BLENDER AND NOT WITH_CYCLES_STANDALONE)
  message(FATAL_ERROR
    "At least one of WITH_BLENDER or WITH_CYCLES_STANDALONE "
-    "or WITH_CYCLES_HYDRA_RENDER_DELEGATE "
    "must be enabled, nothing to do!"
  )
 endif()
@@ -869,7 +840,7 @@ if(WITH_AUDASPACE)
 endif()

 # Auto-enable CUDA dynload if toolkit is not found.
-if(WITH_CYCLES AND WITH_CYCLES_DEVICE_CUDA AND NOT WITH_CUDA_DYNLOAD)
+if(NOT WITH_CUDA_DYNLOAD)
  find_package(CUDA)
  if(NOT CUDA_FOUND)
    message(STATUS "CUDA toolkit not found, using dynamic runtime loading of libraries (WITH_CUDA_DYNLOAD) instead")
@@ -883,7 +854,7 @@ if(WITH_CYCLES_DEVICE_HIP)
 endif()

 #-----------------------------------------------------------------------------
-# Check if submodules are cloned.
+# Check check if submodules are cloned

 if(WITH_INTERNATIONAL)
  file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/datafiles/locale")
@@ -906,8 +877,8 @@ if(WITH_PYTHON)
  # Do this before main 'platform_*' checks,
  # because UNIX will search for the old Python paths which may not exist.
  # giving errors about missing paths before this case is met.
-  if(DEFINED PYTHON_VERSION AND "${PYTHON_VERSION}" VERSION_LESS "3.10")
-    message(FATAL_ERROR "At least Python 3.10 is required to build, but found Python ${PYTHON_VERSION}")
+  if(DEFINED PYTHON_VERSION AND "${PYTHON_VERSION}" VERSION_LESS "3.9")
+    message(FATAL_ERROR "At least Python 3.9 is required to build, but found Python ${PYTHON_VERSION}")
  endif()

  file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/scripts/addons")
@@ -1099,7 +1070,7 @@ if(MSVC)
  add_definitions(-D__LITTLE_ENDIAN__)

  # OSX-Note: as we do cross-compiling with specific set architecture,
-  # endianness-detection and auto-setting is counterproductive
+  # 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)
@@ -1291,16 +1262,6 @@ else()
  list(APPEND GL_DEFINITIONS -DWITH_GL_PROFILE_CORE)
 endif()

-#-----------------------------------------------------------------------------
-# Configure Metal.
-if (WITH_METAL_BACKEND)
-  add_definitions(-DWITH_METAL_BACKEND)
-
-  # No need to add frameworks here, all the ones we need for Metal and
-  # Metal-OpenGL Interop are already being added by
-  # build_files/cmake/platform/platform_apple.cmake
-endif()
-
 #-----------------------------------------------------------------------------
 # Configure OpenMP.
 if(WITH_OPENMP)
@@ -1695,8 +1656,6 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_DUPLICATE_ENUM -Wno-duplicate-enum)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNDEF -Wno-undef)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_MISSING_NORETURN -Wno-missing-noreturn)
-  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_BUT_SET_VARIABLE -Wno-unused-but-set-variable)
-  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_DEPRECATED_DECLARATIONS -Wno-deprecated-declarations)

  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_PARAMETER -Wno-unused-parameter)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_PRIVATE_FIELD -Wno-unused-private-field)
@@ -1801,7 +1760,7 @@ endif()
 set(CMAKE_CXX_STANDARD 17)
 # If C++17 is not available, downgrading to an earlier standard is NOT OK.
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-# Do not enable compiler specific language extensions.
+# Do not enable compiler specific language extentions.
 set(CMAKE_CXX_EXTENSIONS OFF)

 # Make MSVC properly report the value of the __cplusplus preprocessor macro
@@ -1911,13 +1870,15 @@ if(WITH_BLENDER)
  # source after intern and extern to gather all
  # internal and external library information first, for test linking
  add_subdirectory(source)
-elseif(WITH_CYCLES_STANDALONE OR WITH_CYCLES_HYDRA_RENDER_DELEGATE)
+elseif(WITH_CYCLES_STANDALONE)
  add_subdirectory(intern/glew-mx)
  add_subdirectory(intern/guardedalloc)
  add_subdirectory(intern/libc_compat)
+  add_subdirectory(intern/numaapi)
  add_subdirectory(intern/sky)

  add_subdirectory(intern/cycles)
+  add_subdirectory(extern/clew)
  if(WITH_CYCLES_LOGGING)
    if(NOT WITH_SYSTEM_GFLAGS)
      add_subdirectory(extern/gflags)
@@ -1974,7 +1935,7 @@ if(FIRST_RUN)

    set(_msg "  - ${_setting}")
    string(LENGTH "${_msg}" _len)
-    while("36" GREATER "${_len}")
+    while("32" GREATER "${_len}")
      string(APPEND _msg " ")
      math(EXPR _len "${_len} + 1")
    endwhile()
@@ -2089,8 +2050,3 @@ endif()
 if(0)
  print_all_vars()
 endif()
-
-# Should be the last step of configuration.
-if(POSTCONFIGURE_SCRIPT)
-  include(${POSTCONFIGURE_SCRIPT})
-endif()
--- a/145
+++ b/145
@@ -1,4 +1,23 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# -*- mode: gnumakefile; tab-width: 4; indent-tabs-mode: t; -*-
+# vim: tabstop=4
+#
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####

 # This Makefile does an out-of-source CMake build in ../build_`OS`_`CPU`
 # eg:
@@ -32,7 +51,7 @@ Other Convenience Targets
   * config:        Run cmake configuration tool to set build options.
   * deps:          Build library dependencies (intended only for platform maintainers).

-                    The existence of locally build dependencies overrides the pre-built dependencies from subversion.
+                    The existance of locally build dependancies overrides the pre-built dependencies from subversion.
                    These must be manually removed from '../lib/' to go back to using the pre-compiled libraries.

 Project Files
@@ -44,6 +63,8 @@ Project Files

 Package Targets

+   * package_debian:    Build a debian package.
+   * package_pacman:    Build an arch linux pacman package.
   * package_archive:   Build an archive package.

 Testing Targets
@@ -51,25 +72,24 @@ Testing Targets

   * test:
     Run automated tests with ctest.
+   * test_cmake:
+     Runs our own cmake file checker
+     which detects errors in the cmake file list definitions
+   * test_pep8:
+     Checks all python script are pep8
+     which are tagged to use the stricter formatting
+   * test_deprecated:
+     Checks for deprecation tags in our code which may need to be removed

 Static Source Code Checking
   Not associated with building Blender.

   * check_cppcheck:        Run blender source through cppcheck (C & C++).
   * check_clang_array:     Run blender source through clang array checking script (C & C++).
-   * check_deprecated:      Check if there is any deprecated code to remove.
   * check_splint:          Run blenders source through splint (C only).
   * check_sparse:          Run blenders source through sparse (C only).
   * check_smatch:          Run blenders source through smatch (C only).
   * check_descriptions:    Check for duplicate/invalid descriptions.
-   * check_licenses:        Check license headers follow the SPDX license specification,
-                            using one of the accepted licenses in 'doc/license/SPDX-license-identifiers.txt'
-                            Append with 'SHOW_HEADERS=1' to show all unique headers
-                            which can be useful for spotting license irregularities.
-   * check_cmake:           Runs our own cmake file checker which detects errors in the cmake file list definitions.
-   * check_pep8:            Checks all Python script are pep8 which are tagged to use the stricter formatting.
-   * check_mypy:            Checks all Python scripts using mypy,
-                            see: source/tools/check_source/check_mypy_config.py scripts which are included.

 Spell Checkers
   This runs the spell checker from the developer tools repositor.
@@ -199,7 +219,7 @@ endif
 # in libraries, or python 2 for running make update to get it.
 ifeq ($(OS_NCASE),darwin)
 	ifeq (, $(shell command -v $(PYTHON)))
-		PYTHON:=$(DEPS_INSTALL_DIR)/python/bin/python3.10
+		PYTHON:=$(DEPS_INSTALL_DIR)/python/bin/python3.7m
 		ifeq (, $(shell command -v $(PYTHON)))
 			PYTHON:=python
 		endif
@@ -308,7 +328,7 @@ CMAKE_CONFIG = cmake $(CMAKE_CONFIG_ARGS) \
 # -----------------------------------------------------------------------------
 # Tool for 'make config'

-# X11 specific.
+# X11 spesific
 ifdef DISPLAY
 	CMAKE_CONFIG_TOOL = cmake-gui
 else
@@ -385,6 +405,11 @@ help: .FORCE
 # -----------------------------------------------------------------------------
 # Packages
 #
+package_debian: .FORCE
+	cd build_files/package_spec ; DEB_BUILD_OPTIONS="parallel=$(NPROCS)" sh ./build_debian.sh
+
+package_pacman: .FORCE
+	cd build_files/package_spec/pacman ; MAKEFLAGS="-j$(NPROCS)" makepkg

 package_archive: .FORCE
 	make -C "$(BUILD_DIR)" -s package_archive
@@ -395,7 +420,21 @@ package_archive: .FORCE
 # Tests
 #
 test: .FORCE
-	@$(PYTHON) ./build_files/utils/make_test.py "$(BUILD_DIR)"
+	$(PYTHON) ./build_files/utils/make_test.py "$(BUILD_DIR)"
+
+# run pep8 check check on scripts we distribute.
+test_pep8: .FORCE
+	$(PYTHON) tests/python/pep8.py > test_pep8.log 2>&1
+	@echo "written: test_pep8.log"
+
+# run some checks on our cmakefiles.
+test_cmake: .FORCE
+	$(PYTHON) build_files/cmake/cmake_consistency_check.py > test_cmake_consistency.log 2>&1
+	@echo "written: test_cmake_consistency.log"
+
+# run deprecation tests, see if we have anything to remove.
+test_deprecated: .FORCE
+	$(PYTHON) tests/check_deprecated.py


 # -----------------------------------------------------------------------------
@@ -417,44 +456,44 @@ project_eclipse: .FORCE
 #

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

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

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

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

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

 check_mypy: .FORCE
-	@$(PYTHON) "$(BLENDER_DIR)/source/tools/check_source/check_mypy.py"
+	$(PYTHON) "$(BLENDER_DIR)/source/tools/check_source/check_mypy.py"

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

 check_spelling_c: .FORCE
-	@cd "$(BUILD_DIR)" ; \
+	cd "$(BUILD_DIR)" ; \
 	PYTHONIOENCODING=utf_8 $(PYTHON) \
 	    "$(BLENDER_DIR)/source/tools/check_source/check_spelling.py" \
 	    --cache-file=$(CHECK_SPELLING_CACHE) \
@@ -464,70 +503,52 @@ check_spelling_c: .FORCE
 	    "$(BLENDER_DIR)/intern/ghost" \

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

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

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

 source_archive: .FORCE
-	@$(PYTHON) ./build_files/utils/make_source_archive.py
+	python3 ./build_files/utils/make_source_archive.py

 source_archive_complete: .FORCE
-	@cmake \
+	cmake \
 	    -S "$(BLENDER_DIR)/build_files/build_environment" -B"$(BUILD_DIR)/source_archive" \
 	    -DCMAKE_BUILD_TYPE_INIT:STRING=$(BUILD_TYPE) -DPACKAGE_USE_UPSTREAM_SOURCES=OFF
 # This assumes CMake is still using a default `PACKAGE_DIR` variable:
-	@$(PYTHON) ./build_files/utils/make_source_archive.py --include-packages "$(BUILD_DIR)/source_archive/packages"
+	python3 ./build_files/utils/make_source_archive.py --include-packages "$(BUILD_DIR)/source_archive/packages"


 INKSCAPE_BIN?="inkscape"
 icons: .FORCE
-	@BLENDER_BIN=$(BLENDER_BIN) INKSCAPE_BIN=$(INKSCAPE_BIN) \
+	BLENDER_BIN=$(BLENDER_BIN) INKSCAPE_BIN=$(INKSCAPE_BIN) \
 	    "$(BLENDER_DIR)/release/datafiles/blender_icons_update.py"
-	@INKSCAPE_BIN=$(INKSCAPE_BIN) \
+	INKSCAPE_BIN=$(INKSCAPE_BIN) \
 	    "$(BLENDER_DIR)/release/datafiles/prvicons_update.py"
-	@INKSCAPE_BIN=$(INKSCAPE_BIN) \
+	INKSCAPE_BIN=$(INKSCAPE_BIN) \
 	    "$(BLENDER_DIR)/release/datafiles/alert_icons_update.py"

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

 update: .FORCE
-	@$(PYTHON) ./build_files/utils/make_update.py
+	$(PYTHON) ./build_files/utils/make_update.py

 update_code: .FORCE
-	@$(PYTHON) ./build_files/utils/make_update.py --no-libraries
+	$(PYTHON) ./build_files/utils/make_update.py --no-libraries

 format: .FORCE
-	@PATH="../lib/${OS_NCASE}_${CPU}/llvm/bin/:../lib/${OS_NCASE}_centos7_${CPU}/llvm/bin/:../lib/${OS_NCASE}/llvm/bin/:$(PATH)" \
+	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)


@@ -537,25 +558,25 @@ format: .FORCE

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

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

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

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

 help_features: .FORCE
 	@$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_print_build_options.py" $(BLENDER_DIR)"/CMakeLists.txt"
--- a/build_files/build_environment/CMakeLists.txt
+++ b/build_files/build_environment/CMakeLists.txt
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ####################################################################################################
 #
@@ -29,9 +45,8 @@ cmake_minimum_required(VERSION 3.5)

 include(ExternalProject)
 include(cmake/check_software.cmake)
-include(cmake/versions.cmake)
 include(cmake/options.cmake)
-include(cmake/boost_build_options.cmake)
+include(cmake/versions.cmake)
 include(cmake/download.cmake)

 if(ENABLE_MINGW64)
@@ -47,9 +62,7 @@ include(cmake/png.cmake)
 include(cmake/jpeg.cmake)
 include(cmake/blosc.cmake)
 include(cmake/pthreads.cmake)
-include(cmake/imath.cmake)
 include(cmake/openexr.cmake)
-include(cmake/brotli.cmake)
 include(cmake/freetype.cmake)
 include(cmake/freeglut.cmake)
 include(cmake/glew.cmake)
@@ -77,6 +90,7 @@ endif()
 include(cmake/osl.cmake)
 include(cmake/tbb.cmake)
 include(cmake/openvdb.cmake)
+include(cmake/nanovdb.cmake)
 include(cmake/python.cmake)
 option(USE_PIP_NUMPY "Install NumPy using pip wheel instead of building from source" OFF)
 if(APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
@@ -95,15 +109,12 @@ include(cmake/pugixml.cmake)
 include(cmake/ispc.cmake)
 include(cmake/openimagedenoise.cmake)
 include(cmake/embree.cmake)
-include(cmake/fmt.cmake)
-include(cmake/robinmap.cmake)
 if(NOT APPLE)
  include(cmake/xr_openxr.cmake)
 endif()

 # OpenColorIO and dependencies.
 include(cmake/expat.cmake)
-include(cmake/pystring.cmake)
 include(cmake/yamlcpp.cmake)
 include(cmake/opencolorio.cmake)

@@ -111,9 +122,8 @@ if(BLENDER_PLATFORM_ARM)
  include(cmake/sse2neon.cmake)
 endif()

-include(cmake/webp.cmake)
-if(NOT APPLE)
-  include(cmake/level-zero.cmake)
+if(WITH_WEBP)
+  include(cmake/webp.cmake)
 endif()

 if(NOT WIN32 OR ENABLE_MINGW64)
--- a/build_files/build_environment/cmake/alembic.cmake
+++ b/build_files/build_environment/cmake/alembic.cmake
@@ -1,16 +1,46 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(ALEMBIC_EXTRA_ARGS
-  -DImath_ROOT=${LIBDIR}/imath
-  -DUSE_PYALEMBIC=OFF
-  -DUSE_ARNOLD=OFF
-  -DUSE_MAYA=OFF
-  -DUSE_PRMAN=OFF
-  -DUSE_HDF5=OFF
-  -DUSE_TESTS=OFF
+  -DBUILDSTATIC=ON
+  -DLINKSTATIC=ON
+  -DILMBASE_ROOT=${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}${LIBEXT}
+  -DUSE_PYILMBASE=0
+  -DUSE_PYALEMBIC=0
+  -DUSE_ARNOLD=0
+  -DUSE_MAYA=0
+  -DUSE_PRMAN=0
+  -DUSE_HDF5=Off
+  -DUSE_STATIC_HDF5=Off
+  -DUSE_TESTS=Off
+  -DALEMBIC_NO_OPENGL=1
  -DUSE_BINARIES=ON
-  -DALEMBIC_ILMBASE_LINK_STATIC=OFF
+  -DALEMBIC_ILMBASE_LINK_STATIC=On
  -DALEMBIC_SHARED_LIBS=OFF
+  -DGLUT_INCLUDE_DIR=""
+  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
 )

 ExternalProject_Add(external_alembic
@@ -41,5 +71,6 @@ endif()

 add_dependencies(
  external_alembic
+  external_zlib
  external_openexr
 )
--- a/build_files/build_environment/cmake/blosc.cmake
+++ b/build_files/build_environment/cmake/blosc.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(BLOSC_EXTRA_ARGS
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
@@ -24,6 +40,7 @@ ExternalProject_Add(external_blosc
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH ${BLOSC_HASH_TYPE}=${BLOSC_HASH}
  PREFIX ${BUILD_DIR}/blosc
+  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/blosc/src/external_blosc < ${PATCH_DIR}/blosc.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/blosc
 )
--- a/build_files/build_environment/cmake/boost.cmake
+++ b/build_files/build_environment/cmake/boost.cmake
@@ -1,6 +1,33 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(BOOST_ADDRESS_MODEL 64)
+
+if(BLENDER_PLATFORM_ARM)
+  set(BOOST_ARCHITECTURE arm)
+else()
+  set(BOOST_ARCHITECTURE x86)
+endif()

 if(WIN32)
+  set(BOOST_TOOLSET toolset=msvc-14.1)
+  set(BOOST_COMPILER_STRING -vc141)
+
  set(BOOST_CONFIGURE_COMMAND bootstrap.bat)
  set(BOOST_BUILD_COMMAND b2)
  set(BOOST_BUILD_OPTIONS runtime-link=shared )
@@ -20,6 +47,11 @@ else()
  set(BOOST_BUILD_COMMAND ./b2)
  set(BOOST_BUILD_OPTIONS cxxflags=${PLATFORM_CXXFLAGS} --disable-icu boost.locale.icu=off)
  set(BOOST_PATCH_COMMAND echo .)
+  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+    set(BOOST_ADDRESS_MODEL 64)
+  else()
+    set(BOOST_ADDRESS_MODEL 32)
+  endif()
 endif()

 if(WITH_BOOST_PYTHON)
--- a/build_files/build_environment/cmake/boost_build_options.cmake
+++ b/build_files/build_environment/cmake/boost_build_options.cmake
@@ -1,30 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(BOOST_ADDRESS_MODEL 64)
-if(BLENDER_PLATFORM_ARM)
-  set(BOOST_ARCHITECTURE arm)
-else()
-  set(BOOST_ARCHITECTURE x86)
-endif()
-
-if(WIN32)
-  if(MSVC_VERSION GREATER_EQUAL 1920) # 2019
-    set(BOOST_TOOLSET toolset=msvc-14.2)
-    set(BOOST_COMPILER_STRING -vc142)
-  else() # 2017
-    set(BOOST_TOOLSET toolset=msvc-14.1)
-    set(BOOST_COMPILER_STRING -vc141)
-  endif()
-endif()
-
-set(DEFAULT_BOOST_FLAGS
-  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
-  -DBoost_USE_MULTITHREADED=ON
-  -DBoost_USE_STATIC_LIBS=ON
-  -DBoost_USE_STATIC_RUNTIME=OFF
-  -DBOOST_ROOT=${LIBDIR}/boost
-  -DBoost_NO_SYSTEM_PATHS=ON
-  -DBoost_NO_BOOST_CMAKE=ON
-  -DBoost_ADDITIONAL_VERSIONS=${BOOST_VERSION_SHORT}
-  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
-)
--- a/build_files/build_environment/cmake/brotli.cmake
+++ b/build_files/build_environment/cmake/brotli.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(BROTLI_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_brotli
-  URL file://${PACKAGE_DIR}/${BROTLI_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BROTLI_HASH_TYPE}=${BROTLI_HASH}
-  PREFIX ${BUILD_DIR}/brotli
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/brotli ${DEFAULT_CMAKE_FLAGS} ${BROTLI_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/brotli
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_brotli after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/brotli/include ${HARVEST_TARGET}/brotli/include
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/brotli/lib/brotlidec-static${LIBEXT} ${HARVEST_TARGET}/brotli/lib/brotlidec-static${LIBEXT}
-    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/brotli/lib/brotlicommon-static${LIBEXT} ${HARVEST_TARGET}/brotli/lib/brotlicommon-static${LIBEXT}
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/bzip2.cmake
+++ b/build_files/build_environment/cmake/bzip2.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(BZIP2_PREFIX "${LIBDIR}/bzip2")
 set(BZIP2_CONFIGURE_ENV echo .)
--- a/build_files/build_environment/cmake/check_software.cmake
+++ b/build_files/build_environment/cmake/check_software.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(UNIX)
  if(APPLE)
--- a/build_files/build_environment/cmake/clew.cmake
+++ b/build_files/build_environment/cmake/clew.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(CLEW_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/cuew.cmake
+++ b/build_files/build_environment/cmake/cuew.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(CUEW_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/download.cmake
+++ b/build_files/build_environment/cmake/download.cmake
@@ -1,16 +1,9 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-## Update and uncomment this in the release branch
-# set(BLENDER_VERSION 3.1)
-
 function(download_source dep)
  set(TARGET_FILE ${${dep}_FILE})
  set(TARGET_HASH_TYPE ${${dep}_HASH_TYPE})
  set(TARGET_HASH ${${dep}_HASH})
  if(PACKAGE_USE_UPSTREAM_SOURCES)
    set(TARGET_URI  ${${dep}_URI})
-  elseif(BLENDER_VERSION)
-    set(TARGET_URI  https://svn.blender.org/svnroot/bf-blender/tags/blender-${BLENDER_VERSION}-release/lib/packages/${TARGET_FILE})
  else()
    set(TARGET_URI  https://svn.blender.org/svnroot/bf-blender/trunk/lib/packages/${TARGET_FILE})
  endif()
@@ -71,7 +64,9 @@ download_source(FFMPEG)
 download_source(FFTW)
 download_source(ICONV)
 download_source(SNDFILE)
-download_source(WEBP)
+if(WITH_WEBP)
+  download_source(WEBP)
+endif()
 download_source(SPNAV)
 download_source(JEMALLOC)
 download_source(XML2)
@@ -99,9 +94,3 @@ download_source(POTRACE)
 download_source(HARU)
 download_source(ZSTD)
 download_source(FLEX)
-download_source(BROTLI)
-download_source(FMT)
-download_source(ROBINMAP)
-download_source(IMATH)
-download_source(PYSTRING)
-download_source(LEVEL_ZERO)
--- a/build_files/build_environment/cmake/embree.cmake
+++ b/build_files/build_environment/cmake/embree.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 # Note the utility apps may use png/tiff/gif system libraries, but the
 # library itself does not depend on them, so should give no problems.
@@ -17,16 +33,6 @@ set(EMBREE_EXTRA_ARGS
  -DTBB_STATIC_LIB=${TBB_STATIC_LIBRARY}
 )

-if(BLENDER_PLATFORM_ARM)
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_MAX_ISA=NEON)
-else()
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_MAX_ISA=AVX2)
-endif()
-
 if(TBB_STATIC_LIBRARY)
  set(EMBREE_EXTRA_ARGS
    ${EMBREE_EXTRA_ARGS}
@@ -47,15 +53,26 @@ else()
  set(EMBREE_BUILD_DIR)
 endif()

-ExternalProject_Add(external_embree
-  URL file://${PACKAGE_DIR}/${EMBREE_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${EMBREE_HASH_TYPE}=${EMBREE_HASH}
-  PREFIX ${BUILD_DIR}/embree
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/embree/src/external_embree < ${PATCH_DIR}/embree.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/embree ${DEFAULT_CMAKE_FLAGS} ${EMBREE_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/embree
-)
+if(BLENDER_PLATFORM_ARM)
+  ExternalProject_Add(external_embree
+    GIT_REPOSITORY ${EMBREE_ARM_GIT}
+    GIT_TAG "blender-arm"
+    DOWNLOAD_DIR ${DOWNLOAD_DIR}
+    PREFIX ${BUILD_DIR}/embree
+    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/embree ${DEFAULT_CMAKE_FLAGS} ${EMBREE_EXTRA_ARGS}
+    INSTALL_DIR ${LIBDIR}/embree
+  )
+else()
+  ExternalProject_Add(external_embree
+    URL file://${PACKAGE_DIR}/${EMBREE_FILE}
+    DOWNLOAD_DIR ${DOWNLOAD_DIR}
+    URL_HASH ${EMBREE_HASH_TYPE}=${EMBREE_HASH}
+    PREFIX ${BUILD_DIR}/embree
+    PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/embree/src/external_embree < ${PATCH_DIR}/embree.diff
+    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/embree ${DEFAULT_CMAKE_FLAGS} ${EMBREE_EXTRA_ARGS}
+    INSTALL_DIR ${LIBDIR}/embree
+  )
+endif()

 add_dependencies(
  external_embree
--- a/build_files/build_environment/cmake/expat.cmake
+++ b/build_files/build_environment/cmake/expat.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(EXPAT_EXTRA_ARGS
  -DEXPAT_BUILD_DOCS=OFF
--- a/build_files/build_environment/cmake/ffi.cmake
+++ b/build_files/build_environment/cmake/ffi.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ffi
  URL file://${PACKAGE_DIR}/${FFI_FILE}
--- a/build_files/build_environment/cmake/ffmpeg.cmake
+++ b/build_files/build_environment/cmake/ffmpeg.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FFMPEG_CFLAGS "-I${mingw_LIBDIR}/lame/include -I${mingw_LIBDIR}/openjpeg/include/ -I${mingw_LIBDIR}/ogg/include -I${mingw_LIBDIR}/vorbis/include -I${mingw_LIBDIR}/theora/include -I${mingw_LIBDIR}/opus/include -I${mingw_LIBDIR}/vpx/include -I${mingw_LIBDIR}/x264/include -I${mingw_LIBDIR}/xvidcore/include -I${mingw_LIBDIR}/zlib/include")
 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")
--- a/build_files/build_environment/cmake/fftw.cmake
+++ b/build_files/build_environment/cmake/fftw.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FFTW_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/flac.cmake
+++ b/build_files/build_environment/cmake/flac.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_flac
  URL file://${PACKAGE_DIR}/${FLAC_FILE}
--- a/build_files/build_environment/cmake/flex.cmake
+++ b/build_files/build_environment/cmake/flex.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_flex
  URL file://${PACKAGE_DIR}/${FLEX_FILE}
--- a/build_files/build_environment/cmake/flexbison.cmake
+++ b/build_files/build_environment/cmake/flexbison.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(FLEXBISON_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/fmt.cmake
+++ b/build_files/build_environment/cmake/fmt.cmake
@@ -1,14 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(FMT_EXTRA_ARGS
-  -DFMT_TEST=Off
-)
-
-ExternalProject_Add(external_fmt
-  URL file://${PACKAGE_DIR}/${FMT_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FMT_HASH_TYPE}=${FMT_HASH}
-  PREFIX ${BUILD_DIR}/fmt
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/fmt ${DEFAULT_CMAKE_FLAGS} ${FMT_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/fmt
-)
--- a/build_files/build_environment/cmake/freeglut.cmake
+++ b/build_files/build_environment/cmake/freeglut.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  if(BUILD_MODE STREQUAL Release)
--- a/build_files/build_environment/cmake/freetype.cmake
+++ b/build_files/build_environment/cmake/freetype.cmake
@@ -1,15 +1,31 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

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

 ExternalProject_Add(external_freetype
  URL file://${PACKAGE_DIR}/${FREETYPE_FILE}
@@ -20,11 +36,6 @@ ExternalProject_Add(external_freetype
  INSTALL_DIR ${LIBDIR}/freetype
 )

-add_dependencies(
-  external_freetype
-  external_brotli
-)
-
 if(BUILD_MODE STREQUAL Release AND WIN32)
  ExternalProject_Add_Step(external_freetype after_install
    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freetype ${HARVEST_TARGET}/freetype
--- a/build_files/build_environment/cmake/glew.cmake
+++ b/build_files/build_environment/cmake/glew.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(GLEW_EXTRA_ARGS
  -DBUILD_UTILS=Off
--- a/build_files/build_environment/cmake/glfw.cmake
+++ b/build_files/build_environment/cmake/glfw.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(GLFW_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/gmp.cmake
+++ b/build_files/build_environment/cmake/gmp.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(GMP_EXTRA_ARGS -enable-cxx)

@@ -22,6 +38,13 @@ elseif(UNIX AND NOT APPLE)
  )
 endif()

+if(BLENDER_PLATFORM_ARM)
+  set(GMP_OPTIONS
+    ${GMP_OPTIONS}
+    --disable-assembly
+  )
+endif()
+
 ExternalProject_Add(external_gmp
  URL file://${PACKAGE_DIR}/${GMP_FILE}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
--- a/build_files/build_environment/cmake/haru.cmake
+++ b/build_files/build_environment/cmake/haru.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(HARU_EXTRA_ARGS
  -DLIBHPDF_SHARED=OFF
--- a/build_files/build_environment/cmake/harvest.cmake
+++ b/build_files/build_environment/cmake/harvest.cmake
@@ -1,7 +1,23 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

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

 if(NOT DEFINED HARVEST_TARGET)
@@ -14,8 +30,8 @@ if(WIN32)
 if(BUILD_MODE STREQUAL Release)
  add_custom_target(Harvest_Release_Results
    COMMAND # jpeg rename libfile + copy include
-        ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpeg/lib/jpeg-static.lib ${HARVEST_TARGET}/jpeg/lib/libjpeg.lib &&
-        ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/jpeg/include/ ${HARVEST_TARGET}/jpeg/include/ &&
+        ${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/ &&
        # 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/ ${HARVEST_TARGET}/png/include/ &&
@@ -63,12 +79,8 @@ endfunction()
 harvest(alembic/include alembic/include "*.h")
 harvest(alembic/lib/libAlembic.a alembic/lib/libAlembic.a)
 harvest(alembic/bin alembic/bin "*")
-harvest(brotli/include brotli/include "*.h")
-harvest(brotli/lib brotli/lib "*.a")
 harvest(boost/include boost/include "*")
 harvest(boost/lib boost/lib "*.a")
-harvest(imath/include imath/include "*.h")
-harvest(imath/lib imath/lib "*.a")
 harvest(ffmpeg/include ffmpeg/include "*.h")
 harvest(ffmpeg/lib ffmpeg/lib "*.a")
 harvest(fftw3/include fftw3/include "*.h")
@@ -82,13 +94,9 @@ harvest(gmp/include gmp/include "*.h")
 harvest(gmp/lib gmp/lib "*.a")
 harvest(jemalloc/include jemalloc/include "*.h")
 harvest(jemalloc/lib jemalloc/lib "*.a")
-harvest(jpeg/include jpeg/include "*.h")
-harvest(jpeg/lib jpeg/lib "libjpeg.a")
+harvest(jpg/include jpeg/include "*.h")
+harvest(jpg/lib jpeg/lib "libjpeg.a")
 harvest(lame/lib ffmpeg/lib "*.a")
-if(NOT APPLE)
-  harvest(level-zero/include/level_zero level-zero/include/level_zero "*.h")
-  harvest(level-zero/lib level-zero/lib "*.a")
-endif()
 harvest(llvm/bin llvm/bin "clang-format")
 if(BUILD_CLANG_TOOLS)
  harvest(llvm/bin llvm/bin "clang-tidy")
@@ -141,7 +149,7 @@ harvest(openimagedenoise/include openimagedenoise/include "*")
 harvest(openimagedenoise/lib openimagedenoise/lib "*.a")
 harvest(embree/include embree/include "*.h")
 harvest(embree/lib embree/lib "*.a")
-harvest(openjpeg/include/openjpeg-${OPENJPEG_SHORT_VERSION} openjpeg/include "*.h")
+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")
@@ -175,10 +183,9 @@ 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(webp/lib webp/lib "*.a")
-harvest(webp/include webp/include "*.h")
 harvest(usd/include usd/include "*.h")
 harvest(usd/lib/usd usd/lib/usd "*")
 harvest(usd/plugin usd/plugin "*")
--- a/build_files/build_environment/cmake/iconv.cmake
+++ b/build_files/build_environment/cmake/iconv.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(ICONV_EXTRA_ARGS)

--- a/build_files/build_environment/cmake/imath.cmake
+++ b/build_files/build_environment/cmake/imath.cmake
@@ -1,24 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(IMATH_EXTRA_ARGS
-  -DBUILD_SHARED_LIBS=OFF
-  -DBUILD_TESTING=OFF
-  -DIMATH_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
-)
-
-ExternalProject_Add(external_imath
-  URL file://${PACKAGE_DIR}/${IMATH_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${IMATH_HASH_TYPE}=${IMATH_HASH}
-  PREFIX ${BUILD_DIR}/imath
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/imath ${DEFAULT_CMAKE_FLAGS} ${IMATH_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/imath
-)
-
-if(WIN32)
-  ExternalProject_Add_Step(external_imath after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/imath/lib ${HARVEST_TARGET}/imath/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/imath/include ${HARVEST_TARGET}/imath/include
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/ispc.cmake
+++ b/build_files/build_environment/cmake/ispc.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(ISPC_EXTRA_ARGS_WIN
--- a/build_files/build_environment/cmake/jemalloc.cmake
+++ b/build_files/build_environment/cmake/jemalloc.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_jemalloc
  URL file://${PACKAGE_DIR}/${JEMALLOC_FILE}
--- a/build_files/build_environment/cmake/jpeg.cmake
+++ b/build_files/build_environment/cmake/jpeg.cmake
@@ -1,53 +1,61 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

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

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

+  if(BUILD_MODE STREQUAL Debug)
+    ExternalProject_Add_Step(external_jpeg after_install
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpg/lib/jpegd${LIBEXT}  ${LIBDIR}/jpg/lib/jpeg${LIBEXT}
+      DEPENDEES install
+    )
+  endif()
+
  if(BUILD_MODE STREQUAL Release)
    set(JPEG_LIBRARY jpeg-static${LIBEXT})
  else()
    set(JPEG_LIBRARY jpeg-staticd${LIBEXT})
  endif()
-
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_jpeg after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpeg/lib/${JPEG_LIBRARY}  ${LIBDIR}/jpeg/lib/jpeg${LIBEXT}
-      DEPENDEES install
-    )
-  endif()
-
 else(WIN32)
  # cmake for unix
  set(JPEG_EXTRA_ARGS
    -DWITH_JPEG8=ON
    -DENABLE_STATIC=ON
    -DENABLE_SHARED=OFF
-    -DCMAKE_INSTALL_LIBDIR=${LIBDIR}/jpeg/lib)
+    -DCMAKE_INSTALL_LIBDIR=${LIBDIR}/jpg/lib)

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

  set(JPEG_LIBRARY libjpeg${LIBEXT})
--- a/build_files/build_environment/cmake/lame.cmake
+++ b/build_files/build_environment/cmake/lame.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LAME_EXTRA_ARGS)
 if(MSVC)
--- a/build_files/build_environment/cmake/level-zero.cmake
+++ b/build_files/build_environment/cmake/level-zero.cmake
@@ -1,21 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(LEVEL_ZERO_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_level-zero
-  URL file://${PACKAGE_DIR}/${LEVEL_ZERO_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LEVEL_ZERO_HASH_TYPE}=${LEVEL_ZERO_HASH}
-  PREFIX ${BUILD_DIR}/level-zero
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/level-zero/src/external_level-zero < ${PATCH_DIR}/level-zero.diff
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/level-zero ${DEFAULT_CMAKE_FLAGS} ${LEVEL_ZERO_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/level-zero
-)
-
-if(BUILD_MODE STREQUAL Release AND WIN32)
-  ExternalProject_Add_Step(external_level-zero after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/level-zero ${HARVEST_TARGET}/level-zero
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/libglu.cmake
+++ b/build_files/build_environment/cmake/libglu.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LIBGLU_CFLAGS "-static-libgcc")
 set(LIBGLU_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
--- a/build_files/build_environment/cmake/llvm.cmake
+++ b/build_files/build_environment/cmake/llvm.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BLENDER_PLATFORM_ARM)
  set(LLVM_TARGETS AArch64$<SEMICOLON>ARM)
--- a/build_files/build_environment/cmake/lzma.cmake
+++ b/build_files/build_environment/cmake/lzma.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(LZMA_PATCH_CMD echo .)

--- a/build_files/build_environment/cmake/mesa.cmake
+++ b/build_files/build_environment/cmake/mesa.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(MESA_CFLAGS "-static-libgcc")
 set(MESA_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
--- a/build_files/build_environment/cmake/nanovdb.cmake
+++ b/build_files/build_environment/cmake/nanovdb.cmake
@@ -0,0 +1,55 @@
+# ***** 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(NANOVDB_EXTRA_ARGS
+   # NanoVDB is header-only, so only need the install target
+  -DNANOVDB_BUILD_UNITTESTS=OFF
+  -DNANOVDB_BUILD_EXAMPLES=OFF
+  -DNANOVDB_BUILD_BENCHMARK=OFF
+  -DNANOVDB_BUILD_DOCS=OFF
+  -DNANOVDB_BUILD_TOOLS=OFF
+  -DNANOVDB_CUDA_KEEP_PTX=OFF
+   # Do not need to include any of the dependencies because of this
+  -DNANOVDB_USE_OPENVDB=OFF
+  -DNANOVDB_USE_OPENGL=OFF
+  -DNANOVDB_USE_OPENCL=OFF
+  -DNANOVDB_USE_CUDA=OFF
+  -DNANOVDB_USE_TBB=OFF
+  -DNANOVDB_USE_BLOSC=OFF
+  -DNANOVDB_USE_ZLIB=OFF
+  -DNANOVDB_USE_OPTIX=OFF
+  -DNANOVDB_ALLOW_FETCHCONTENT=OFF
+)
+
+ExternalProject_Add(nanovdb
+  URL file://${PACKAGE_DIR}/${NANOVDB_FILE}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH ${NANOVDB_HASH_TYPE}=${NANOVDB_HASH}
+  PREFIX ${BUILD_DIR}/nanovdb
+  SOURCE_SUBDIR nanovdb
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/nanovdb/src/nanovdb < ${PATCH_DIR}/nanovdb.diff
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/nanovdb ${DEFAULT_CMAKE_FLAGS} ${NANOVDB_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/nanovdb
+)
+
+if(WIN32)
+  ExternalProject_Add_Step(nanovdb after_install
+    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/nanovdb/nanovdb ${HARVEST_TARGET}/nanovdb/include/nanovdb
+    DEPENDEES install
+  )
+endif()
--- a/build_files/build_environment/cmake/nasm.cmake
+++ b/build_files/build_environment/cmake/nasm.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_nasm
  URL file://${PACKAGE_DIR}/${NASM_FILE}
--- a/build_files/build_environment/cmake/numpy.cmake
+++ b/build_files/build_environment/cmake/numpy.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(MSVC)
  message("BIN >${PYTHON_BINARY}<")
--- a/build_files/build_environment/cmake/ogg.cmake
+++ b/build_files/build_environment/cmake/ogg.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ogg
  URL file://${PACKAGE_DIR}/${OGG_FILE}
--- a/build_files/build_environment/cmake/openal.cmake
+++ b/build_files/build_environment/cmake/openal.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Release)
  set(OPENAL_EXTRA_ARGS
--- a/build_files/build_environment/cmake/opencollada.cmake
+++ b/build_files/build_environment/cmake/opencollada.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(UNIX)
  set(OPENCOLLADA_EXTRA_ARGS
--- a/build_files/build_environment/cmake/opencolorio.cmake
+++ b/build_files/build_environment/cmake/opencolorio.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(OPENCOLORIO_EXTRA_ARGS
  -DOCIO_BUILD_APPS=OFF
@@ -11,12 +27,13 @@ set(OPENCOLORIO_EXTRA_ARGS
  -DOCIO_BUILD_GPU_TESTS=OFF
  -DOCIO_USE_SSE=ON

-  -DOCIO_INSTALL_EXT_PACKAGES=NONE
-
+  # Manually build ext packages except for pystring, which does not have
+  # a CMake or autotools build system that we can easily use.
+  -DOCIO_INSTALL_EXT_PACKAGES=MISSING
+  -DHalf_ROOT=${LIBDIR}/openexr
+  -DHalf_STATIC_LIBRARY=ON
  -Dexpat_ROOT=${LIBDIR}/expat
  -Dyaml-cpp_ROOT=${LIBDIR}/yamlcpp
-  -Dpystring_ROOT=${LIBDIR}/pystring
-  -DImath_ROOT=${LIBDIR}/imath
 )

 if(BLENDER_PLATFORM_ARM)
@@ -29,9 +46,7 @@ endif()
 if(WIN32)
  set(OPENCOLORIO_EXTRA_ARGS
    ${OPENCOLORIO_EXTRA_ARGS}
-    -Dexpat_LIBRARY=${LIBDIR}/expat/lib/libexpatMD
-    -Dyaml-cpp_LIBRARY=${LIBDIR}/expat/lib/libyaml-cppmd.lib
-    -DImath_LIBRARY=${LIBDIR}/imath/lib/imath${OPENEXR_VERSION_POSTFIX}
+    -DOCIO_INLINES_HIDDEN=OFF
  )
 else()
  set(OPENCOLORIO_EXTRA_ARGS
@@ -63,7 +78,7 @@ if(WIN32)
      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/lib ${HARVEST_TARGET}/opencolorio/lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp.lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatMD.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pystring/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring.lib
      DEPENDEES install
    )
  endif()
@@ -72,7 +87,7 @@ if(WIN32)
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencolorio/lib/Opencolorio.lib ${HARVEST_TARGET}/opencolorio/lib/OpencolorIO_d.lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmdd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp_d.lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatdMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatdMD.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pystring/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring_d.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring_d.lib
      DEPENDEES install
    )
  endif()
@@ -80,7 +95,7 @@ else()
    ExternalProject_Add_Step(external_opencolorio after_install
      COMMAND cp ${LIBDIR}/yamlcpp/lib/libyaml-cpp.a ${LIBDIR}/opencolorio/lib/
      COMMAND cp ${LIBDIR}/expat/lib/libexpat.a ${LIBDIR}/opencolorio/lib/
-      COMMAND cp ${LIBDIR}/pystring/lib/libpystring.a ${LIBDIR}/opencolorio/lib/
+      COMMAND cp ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/libpystring.a ${LIBDIR}/opencolorio/lib/
      DEPENDEES install
    )
 endif()
--- a/build_files/build_environment/cmake/openexr.cmake
+++ b/build_files/build_environment/cmake/openexr.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
@@ -16,10 +32,12 @@ set(OPENEXR_EXTRA_ARGS
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
  -DBUILD_TESTING=OFF
  -DOPENEXR_BUILD_BOTH_STATIC_SHARED=OFF
+  -DILMBASE_BUILD_BOTH_STATIC_SHARED=OFF
  -DBUILD_SHARED_LIBS=OFF
-  -DOPENEXR_INSTALL_TOOLS=OFF
-  -DOPENEXR_INSTALL_EXAMPLES=OFF
-  -DImath_DIR=${LIBDIR}/imath/lib/cmake/Imath
+  -DOPENEXR_BUILD_UTILS=OFF
+  -DPYILMBASE_ENABLE=OFF
+  -DOPENEXR_VIEWERS_ENABLE=OFF
+  -DILMBASE_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
  -DOPENEXR_LIB_SUFFIX=${OPENEXR_VERSION_BUILD_POSTFIX}
 )

--- a/build_files/build_environment/cmake/openimagedenoise.cmake
+++ b/build_files/build_environment/cmake/openimagedenoise.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****


 set(OIDN_EXTRA_ARGS
@@ -8,7 +24,6 @@ set(OIDN_EXTRA_ARGS
  -DOIDN_STATIC_LIB=ON
  -DOIDN_STATIC_RUNTIME=OFF
  -DISPC_EXECUTABLE=${LIBDIR}/ispc/bin/ispc
-  -DOIDN_FILTER_RTLIGHTMAP=OFF
 )

 if(WIN32)
--- a/build_files/build_environment/cmake/openimageio.cmake
+++ b/build_files/build_environment/cmake/openimageio.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Release)
  set(OIIO_TOOLS ON)
@@ -23,20 +39,35 @@ else()
  set(OIIO_SIMD_FLAGS)
 endif()

+if(WITH_WEBP)
+  set(WEBP_ARGS
+    -DWEBP_INCLUDE_DIR=${LIBDIR}/webp/include
+    -DWEBP_LIBRARY=${LIBDIR}/webp/lib/${LIBPREFIX}webp${LIBEXT}
+  )
+  set(WEBP_DEP external_webp)
+endif()
+
 if(MSVC)
  set(OPENJPEG_FLAGS
-    -DOpenJPEG_ROOT=${LIBDIR}/openjpeg_msvc
+    -DOpenJpeg_ROOT=${LIBDIR}/openjpeg_msvc
  )
 else()
  set(OPENJPEG_FLAGS
-    -DOpenJPEG_ROOT=${LIBDIR}/openjpeg
+    -DOpenJpeg_ROOT=${LIBDIR}/openjpeg
  )
 endif()

 set(OPENIMAGEIO_EXTRA_ARGS
  -DBUILD_SHARED_LIBS=OFF
  ${OPENIMAGEIO_LINKSTATIC}
-  ${DEFAULT_BOOST_FLAGS}
+  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+  -DBoost_USE_MULTITHREADED=ON
+  -DBoost_USE_STATIC_LIBS=ON
+  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBOOST_ROOT=${LIBDIR}/boost
+  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+  -DBoost_NO_SYSTEM_PATHS=ON
+  -DBoost_NO_BOOST_CMAKE=ON
  -DUSE_LIBSQUISH=OFF
  -DUSE_QT5=OFF
  -DUSE_NUKE=OFF
@@ -47,6 +78,7 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DUSE_LIBHEIF=OFF
  -DUSE_OPENGL=OFF
  -DUSE_TBB=OFF
+  -DUSE_FIELD3D=OFF
  -DUSE_QT=OFF
  -DUSE_PYTHON=OFF
  -DUSE_GIF=OFF
@@ -57,7 +89,7 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DUSE_FREETYPE=OFF
  -DUSE_LIBRAW=OFF
  -DUSE_OPENCOLORIO=OFF
-  -DUSE_WEBP=ON
+  -DUSE_WEBP=${WITH_WEBP}
  -DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
  -DOIIO_BUILD_TESTS=OFF
  -DBUILD_TESTING=OFF
@@ -67,9 +99,14 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DPNG_PNG_INCLUDE_DIR=${LIBDIR}/png/include
  -DTIFF_LIBRARY=${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT}
  -DTIFF_INCLUDE_DIR=${LIBDIR}/tiff/include
-  -DJPEG_LIBRARY=${LIBDIR}/jpeg/lib/${JPEG_LIBRARY}
-  -DJPEG_INCLUDE_DIR=${LIBDIR}/jpeg/include
+  -DJPEG_LIBRARY=${LIBDIR}/jpg/lib/${JPEG_LIBRARY}
+  -DJPEG_INCLUDE_DIR=${LIBDIR}/jpg/include
  ${OPENJPEG_FLAGS}
+  -DOpenEXR_USE_STATIC_LIBS=On
+  -DILMBASE_INCLUDE_DIR=${LIBDIR}/openexr/include/
+  -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}${LIBEXT}
@@ -77,14 +114,8 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DUSE_EXTERNAL_PUGIXML=ON
  -DPUGIXML_LIBRARY=${LIBDIR}/pugixml/lib/${LIBPREFIX}pugixml${LIBEXT}
  -DPUGIXML_INCLUDE_DIR=${LIBDIR}/pugixml/include/
-  -DBUILD_MISSING_ROBINMAP=OFF
-  -DBUILD_MISSING_FMT=OFF
-  -DFMT_INCLUDE_DIR=${LIBDIR}/fmt/include/
-  -DRobinmap_ROOT=${LIBDIR}/robinmap
-  -DWebP_ROOT=${LIBDIR}/webp
+  ${WEBP_FLAGS}
  ${OIIO_SIMD_FLAGS}
-  -DOpenEXR_ROOT=${LIBDIR}/openexr
-  -DImath_ROOT=${LIBDIR}/imath
 )

 ExternalProject_Add(external_openimageio
@@ -102,15 +133,12 @@ add_dependencies(
  external_png
  external_zlib
  external_openexr
-  external_imath
  external_jpeg
  external_boost
  external_tiff
  external_pugixml
-  external_fmt
-  external_robinmap
  external_openjpeg${OPENJPEG_POSTFIX}
-  external_webp
+  ${WEBP_DEP}
 )

 if(WIN32)
@@ -125,8 +153,8 @@ if(WIN32)
  endif()
  if(BUILD_MODE STREQUAL Debug)
    ExternalProject_Add_Step(external_openimageio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_d.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_Util_d.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_Util_d.lib
+      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()
--- a/build_files/build_environment/cmake/openjpeg.cmake
+++ b/build_files/build_environment/cmake/openjpeg.cmake
@@ -1,26 +1,38 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

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

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

-set(OPENJPEG_EXTRA_ARGS
-  ${OPENJPEG_EXTRA_ARGS}
-  -DBUILD_SHARED_LIBS=OFF
-  -DBUILD_CODEC=OFF
-)
-
 ExternalProject_Add(external_openjpeg
  URL file://${PACKAGE_DIR}/${OPENJPEG_FILE}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  URL_HASH ${OPENJPEG_HASH_TYPE}=${OPENJPEG_HASH}
  PREFIX ${BUILD_DIR}/openjpeg
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg ${BUILD_DIR}/openjpeg/src/external_openjpeg
+  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF ${BUILD_DIR}/openjpeg/src/external_openjpeg
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make -j${MAKE_THREADS}
  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make install
  INSTALL_DIR ${LIBDIR}/openjpeg
--- a/build_files/build_environment/cmake/openmp.cmake
+++ b/build_files/build_environment/cmake/openmp.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(APPLE)
  set(OPENMP_PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openmp/src/external_openmp < ${PATCH_DIR}/openmp.diff)
--- a/build_files/build_environment/cmake/opensubdiv.cmake
+++ b/build_files/build_environment/cmake/opensubdiv.cmake
@@ -1,25 +1,31 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(OPENSUBDIV_EXTRA_ARGS
-  -DNO_LIB=OFF
  -DNO_EXAMPLES=ON
-  -DNO_TUTORIALS=ON
  -DNO_REGRESSION=ON
+  -DNO_PYTHON=ON
+  -DNO_MAYA=ON
  -DNO_PTEX=ON
  -DNO_DOC=ON
-  -DNO_OMP=ON
-  -DNO_TBB=OFF
-  -DNO_CUDA=ON
-  -DNO_OPENCL=OFF
  -DNO_CLEW=OFF
-  -DNO_OPENGL=OFF
-  -DNO_METAL=OFF
-  -DNO_DX=ON
-  -DNO_TESTS=ON
-  -DNO_GLTESTS=ON
-  -DNO_GLEW=OFF
-  -DNO_GLFW=OFF
-  -DNO_GLFW_X11=ON
+  -DNO_OPENCL=OFF
+  -DNO_TUTORIALS=ON
  -DGLEW_INCLUDE_DIR=${LIBDIR}/glew/include
  -DGLEW_LIBRARY=${LIBDIR}/glew/lib/libGLEW${LIBEXT}
  -DGLFW_INCLUDE_DIR=${LIBDIR}/glfw/include
@@ -36,11 +42,22 @@ if(WIN32)
    -DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
    -DCUEW_LIBRARY=${LIBDIR}/cuew/lib/cuew${LIBEXT}
  )
+  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+    set(OPENSUBDIV_EXTRA_ARGS
+      ${OPENSUBDIV_EXTRA_ARGS}
+      -DNO_CUDA=OFF
+    )
+  else()
+    set(OPENSUBDIV_EXTRA_ARGS
+      ${OPENSUBDIV_EXTRA_ARGS}
+      -DNO_CUDA=ON
+    )
+  endif()
+
 else()
  set(OPENSUBDIV_EXTRA_ARGS
    ${OPENSUBDIV_EXTRA_ARGS}
-    -DTBB_INCLUDE_DIR=${LIBDIR}/tbb/include
-    -DTBB_tbb_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
+    -DNO_CUDA=ON
    -DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
    -DCLEW_INCLUDE_DIR=${LIBDIR}/clew/include/CL
    -DCLEW_LIBRARY=${LIBDIR}/clew/lib/static/${LIBPREFIX}clew${LIBEXT}
--- a/build_files/build_environment/cmake/openvdb.cmake
+++ b/build_files/build_environment/cmake/openvdb.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(BUILD_MODE STREQUAL Debug)
  set(BLOSC_POST _d)
@@ -13,7 +29,6 @@ else()
 endif()

 set(OPENVDB_EXTRA_ARGS
-  ${DEFAULT_BOOST_FLAGS}
  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
  -DBoost_USE_MULTITHREADED=ON
  -DBoost_USE_STATIC_LIBS=ON
@@ -25,20 +40,22 @@ set(OPENVDB_EXTRA_ARGS
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
  -DBlosc_INCLUDE_DIR=${LIBDIR}/blosc/include/
  -DBlosc_LIBRARY=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DBlosc_LIBRARY_RELEASE=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DBlosc_LIBRARY_DEBUG=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
-  -DOPENVDB_BUILD_UNITTESTS=OFF
-  -DOPENVDB_BUILD_PYTHON_MODULE=OFF
-  -DOPENVDB_BUILD_NANOVDB=ON
-  -DNANOVDB_BUILD_TOOLS=OFF
+  -DOPENVDB_ENABLE_3_ABI_COMPATIBLE=OFF
+  -DOPENVDB_BUILD_UNITTESTS=Off
+  -DOPENVDB_BUILD_PYTHON_MODULE=Off
  -DBlosc_ROOT=${LIBDIR}/blosc/
  -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=${LIBDIR}/openexr/lib
  -DOPENVDB_CORE_SHARED=${OPENVDB_SHARED}
  -DOPENVDB_CORE_STATIC=${OPENVDB_STATIC}
-  -DOPENVDB_BUILD_BINARIES=OFF
+  -DOPENVDB_BUILD_BINARIES=Off
  -DCMAKE_DEBUG_POSTFIX=_d
-  -DBLOSC_USE_STATIC_LIBS=ON
-  -DUSE_NANOVDB=ON
+  -DILMBASE_USE_STATIC_LIBS=On
+  -DOPENEXR_USE_STATIC_LIBS=On
 )

 if(WIN32)
@@ -47,6 +64,15 @@ if(WIN32)
  # 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}
  )
 endif()

@@ -64,6 +90,7 @@ add_dependencies(
  openvdb
  external_tbb
  external_boost
+  external_openexr
  external_zlib
  external_blosc
 )
@@ -71,7 +98,7 @@ add_dependencies(
 if(WIN32)
  if(BUILD_MODE STREQUAL Release)
    ExternalProject_Add_Step(openvdb after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openvdb/include ${HARVEST_TARGET}/openvdb/include
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openvdb/include/openvdb ${HARVEST_TARGET}/openvdb/include/openvdb
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/openvdb.lib ${HARVEST_TARGET}/openvdb/lib/openvdb.lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/bin/openvdb.dll ${HARVEST_TARGET}/openvdb/bin/openvdb.dll
      DEPENDEES install
--- a/build_files/build_environment/cmake/options.cmake
+++ b/build_files/build_environment/cmake/options.cmake
@@ -1,8 +1,25 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  option(ENABLE_MINGW64 "Enable building of ffmpeg/iconv/libsndfile/fftw3 by installing mingw64" ON)
 endif()
+option(WITH_WEBP "Enable building of oiio with webp support" OFF)
 option(WITH_BOOST_PYTHON "Enable building of boost with python support" OFF)
 cmake_host_system_information(RESULT NUM_CORES QUERY NUMBER_OF_LOGICAL_CORES)
 set(MAKE_THREADS ${NUM_CORES} CACHE STRING "Number of threads to run make with")
@@ -22,7 +39,7 @@ endif()
 set(DOWNLOAD_DIR "${CMAKE_CURRENT_BINARY_DIR}/downloads" CACHE STRING "Path for downloaded files")
 # This path must be hard-coded like this, so that the GNUmakefile knows where it is and can pass it to make_source_archive.py:
 set(PACKAGE_DIR "${CMAKE_CURRENT_BINARY_DIR}/packages")
-option(PACKAGE_USE_UPSTREAM_SOURCES "Use sources upstream to download the package sources, when OFF the blender mirror will be used" ON)
+option(PACKAGE_USE_UPSTREAM_SOURCES "Use soures upstream to download the package sources, when OFF the blender mirror will be used" ON)

 file(TO_CMAKE_PATH ${DOWNLOAD_DIR} DOWNLOAD_DIR)
 file(TO_CMAKE_PATH ${PACKAGE_DIR} PACKAGE_DIR)
@@ -41,29 +58,29 @@ if(WIN32)
  set(LIBPREFIX "")

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

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

  if(WITH_OPTIMIZED_DEBUG)
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/MDd ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+    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")
  else()
-    set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/D_DEBUG /D PLATFORM_WINDOWS /MTd  ${COMMON_MSVC_FLAGS} /Zi /Ob0 /Od /RTC1 /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+    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=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "/MD ${COMMON_MSVC_FLAGS} /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
-  set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MD ${COMMON_MSVC_FLAGS} /Zi /O2 /Ob1 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=2 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+  set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MD /${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(PLATFORM_FLAGS)
  set(PLATFORM_CXX_FLAGS)
--- a/build_files/build_environment/cmake/opus.cmake
+++ b/build_files/build_environment/cmake/opus.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_opus
  URL file://${PACKAGE_DIR}/${OPUS_FILE}
--- a/build_files/build_environment/cmake/osl.cmake
+++ b/build_files/build_environment/cmake/osl.cmake
@@ -1,17 +1,51 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(OSL_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
  set(OSL_FLEX_BISON -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe)
+  set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=sse2)
 else()
  set(OSL_CMAKE_CXX_STANDARD_LIBRARIES)
  set(OSL_FLEX_BISON)
-  set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpeg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+  set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
 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_EXTRA_ARGS
-  ${DEFAULT_BOOST_FLAGS}
+  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+  -DBoost_USE_MULTITHREADED=ON
+  -DBoost_USE_STATIC_LIBS=ON
+  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBOOST_ROOT=${LIBDIR}/boost
+  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+  -DBoost_NO_SYSTEM_PATHS=ON
+  -DBoost_NO_BOOST_CMAKE=ON
  -DOpenEXR_ROOT=${LIBDIR}/openexr/
+  -DIlmBase_ROOT=${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}${LIBEXT}
+  -DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+  -DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
  -DOpenImageIO_ROOT=${LIBDIR}/openimageio/
  -DOSL_BUILD_TESTS=OFF
  -DOSL_BUILD_MATERIALX=OFF
@@ -31,10 +65,10 @@ set(OSL_EXTRA_ARGS
  -DUSE_QT=OFF
  -DUSE_Qt5=OFF
  -DINSTALL_DOCS=OFF
+  ${OSL_SIMD_FLAGS}
  -Dpugixml_ROOT=${LIBDIR}/pugixml
  -DUSE_PYTHON=OFF
  -DCMAKE_CXX_STANDARD=14
-  -DImath_ROOT=${LIBDIR}/imath
 )

 ExternalProject_Add(external_osl
--- a/build_files/build_environment/cmake/package_python.cmake
+++ b/build_files/build_environment/cmake/package_python.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(MSVC)
  set(PYTARGET ${HARVEST_TARGET}/python/${PYTHON_SHORT_VERSION_NO_DOTS})
@@ -8,7 +24,7 @@ if(MSVC)
    add_custom_command(
      OUTPUT ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
      COMMAND echo packaging python
-      COMMAND echo this should output at ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
+      COMMAND 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
@@ -27,7 +43,7 @@ if(MSVC)
    add_custom_command(
      OUTPUT ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
      COMMAND echo packaging python
-      COMMAND echo this should output at ${PYTARGET}/bin/python${PYTHON_POSTFIX}.exe
+      COMMAND 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
--- a/build_files/build_environment/cmake/png.cmake
+++ b/build_files/build_environment/cmake/png.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PNG_EXTRA_ARGS
  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
--- a/build_files/build_environment/cmake/potrace.cmake
+++ b/build_files/build_environment/cmake/potrace.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(POTRACE_EXTRA_ARGS
 )
--- a/build_files/build_environment/cmake/pthreads.cmake
+++ b/build_files/build_environment/cmake/pthreads.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)

--- a/build_files/build_environment/cmake/pugixml.cmake
+++ b/build_files/build_environment/cmake/pugixml.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PUGIXML_EXTRA_ARGS
 )
--- a/build_files/build_environment/cmake/pystring.cmake
+++ b/build_files/build_environment/cmake/pystring.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(PYSTRING_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_pystring
-  URL file://${PACKAGE_DIR}/${PYSTRING_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PYSTRING_HASH_TYPE}=${PYSTRING_HASH}
-  PREFIX ${BUILD_DIR}/pystring
-  PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_pystring.txt ${BUILD_DIR}/pystring/src/external_pystring/CMakeLists.txt
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/pystring ${DEFAULT_CMAKE_FLAGS} ${PYSTRING_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/pystring
-)
-
-if(WIN32)
-  ExternalProject_Add_Step(external_pystring after_install
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pystring/lib ${HARVEST_TARGET}/pystring/lib
-    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pystring/include ${HARVEST_TARGET}/pystring/include
-    DEPENDEES install
-  )
-endif()
--- a/build_files/build_environment/cmake/python.cmake
+++ b/build_files/build_environment/cmake/python.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(PYTHON_POSTFIX)
 if(BUILD_MODE STREQUAL Debug)
--- a/build_files/build_environment/cmake/python_site_packages.cmake
+++ b/build_files/build_environment/cmake/python_site_packages.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32 AND BUILD_MODE STREQUAL Debug)
  set(SITE_PACKAGES_EXTRA --global-option build --global-option --debug)
@@ -15,7 +31,7 @@ ExternalProject_Add(external_python_site_packages
  CONFIGURE_COMMAND ${PIP_CONFIGURE_COMMAND}
  BUILD_COMMAND ""
  PREFIX ${BUILD_DIR}/site_packages
-  INSTALL_COMMAND ${PYTHON_BINARY} -m pip install --no-cache-dir ${SITE_PACKAGES_EXTRA} cython==${CYTHON_VERSION} idna==${IDNA_VERSION} charset-normalizer==${CHARSET_NORMALIZER_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} zstandard==${ZSTANDARD_VERSION} --no-binary :all:
+  INSTALL_COMMAND ${PYTHON_BINARY} -m pip install ${SITE_PACKAGES_EXTRA} cython==${CYTHON_VERSION} idna==${IDNA_VERSION} charset-normalizer==${CHARSET_NORMALIZER_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} zstandard==${ZSTANDARD_VERSION} --no-binary :all:
 )

 if(USE_PIP_NUMPY)
--- a/build_files/build_environment/cmake/robinmap.cmake
+++ b/build_files/build_environment/cmake/robinmap.cmake
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-set(ROBINMAP_EXTRA_ARGS
-)
-
-ExternalProject_Add(external_robinmap
-  URL file://${PACKAGE_DIR}/${ROBINMAP_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ROBINMAP_HASH_TYPE}=${ROBINMAP_HASH}
-  PREFIX ${BUILD_DIR}/robinmap
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/robinmap ${DEFAULT_CMAKE_FLAGS} ${ROBINMAP_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/robinmap
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_robinmap after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/zstd/include/ ${HARVEST_TARGET}/zstd/include/
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/sdl.cmake
+++ b/build_files/build_environment/cmake/sdl.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(SDL_EXTRA_ARGS
--- a/build_files/build_environment/cmake/setup_mingw64.cmake
+++ b/build_files/build_environment/cmake/setup_mingw64.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ####################################################################################################################
 # Mingw64 Builds
--- a/build_files/build_environment/cmake/sndfile.cmake
+++ b/build_files/build_environment/cmake/sndfile.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SNDFILE_EXTRA_ARGS)
 set(SNDFILE_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR}/vorbis/lib/pkgconfig:${mingw_LIBDIR}/flac/lib/pkgconfig:${mingw_LIBDIR})
--- a/build_files/build_environment/cmake/spnav.cmake
+++ b/build_files/build_environment/cmake/spnav.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_spnav
  URL file://${PACKAGE_DIR}/${SPNAV_FILE}
--- a/build_files/build_environment/cmake/sqlite.cmake
+++ b/build_files/build_environment/cmake/sqlite.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SQLITE_CONFIGURE_ENV echo .)
 set(SQLITE_CONFIGURATION_ARGS)
--- a/build_files/build_environment/cmake/sse2neon.cmake
+++ b/build_files/build_environment/cmake/sse2neon.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_sse2neon
  GIT_REPOSITORY  ${SSE2NEON_GIT}
--- a/build_files/build_environment/cmake/ssl.cmake
+++ b/build_files/build_environment/cmake/ssl.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(SSL_CONFIGURE_COMMAND ./Configure)
 set(SSL_PATCH_CMD echo .)
--- a/build_files/build_environment/cmake/tbb.cmake
+++ b/build_files/build_environment/cmake/tbb.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
 if(WIN32)
  set(TBB_EXTRA_ARGS
    -DTBB_BUILD_SHARED=On
--- a/build_files/build_environment/cmake/theora.cmake
+++ b/build_files/build_environment/cmake/theora.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(UNIX)
  set(THEORA_CONFIGURE_ENV ${CONFIGURE_ENV} && export HAVE_PDFLATEX=no)
--- a/build_files/build_environment/cmake/tiff.cmake
+++ b/build_files/build_environment/cmake/tiff.cmake
@@ -1,4 +1,26 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(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}
@@ -8,7 +30,7 @@ set(TIFF_EXTRA_ARGS
  -Dlzma=OFF
  -Djbig=OFF
  -Dzstd=OFF
-  -Dwebp=OFF
+  -Dwebp=${WITH_TIFF_WEBP}
 )

 ExternalProject_Add(external_tiff
--- a/build_files/build_environment/cmake/usd.cmake
+++ b/build_files/build_environment/cmake/usd.cmake
@@ -1,59 +1,55 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-if(WIN32)
-  # OIIO and OSL are statically linked for us, but USD doesn't know
-  set(USD_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DOIIO_STATIC_DEFINE /DOSL_STATIC_DEFINE")
-  if(BUILD_MODE STREQUAL Debug)
-    # USD does not look for debug libs, nor does it link them
-    # when building static, so this is just to keep find_package happy
-    # if we ever link dynamically on windows util will need to be linked as well.
-    set(USD_OIIO_CMAKE_DEFINES "-DOIIO_LIBRARIES=${LIBDIR}/openimageio/lib/OpenImageIO_d${LIBEXT}")
-  endif()
-  set(USD_PLATFORM_FLAGS
-    ${USD_OIIO_CMAKE_DEFINES}
-    -DCMAKE_CXX_FLAGS=${USD_CXX_FLAGS}
-  )
-endif()
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(USD_EXTRA_ARGS
-  ${DEFAULT_BOOST_FLAGS}
-  ${USD_PLATFORM_FLAGS}
-  # This is a preventative measure that avoids possible conflicts when add-ons
-  # try to load another USD library into the same process space.
-  -DPXR_SET_INTERNAL_NAMESPACE=usdBlender
-  -DOPENSUBDIV_ROOT_DIR=${LIBDIR}/opensubdiv
-  -DOpenImageIO_ROOT=${LIBDIR}/openimageio
-  -DOPENEXR_LIBRARIES=${LIBDIR}/imath/lib/imath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
-  -DOPENEXR_INCLUDE_DIR=${LIBDIR}/imath/include
-  -DOSL_ROOT=${LIBDIR}/osl
-  -DPXR_ENABLE_PYTHON_SUPPORT=OFF
-  -DPXR_BUILD_IMAGING=ON
-  -DPXR_BUILD_TESTS=OFF
-  -DPXR_BUILD_EXAMPLES=OFF
-  -DPXR_BUILD_TUTORIALS=OFF
-  -DPXR_ENABLE_HDF5_SUPPORT=OFF
-  -DPXR_ENABLE_MATERIALX_SUPPORT=OFF
-  -DPXR_ENABLE_OPENVDB_SUPPORT=OFF
-  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
-  -DPXR_BUILD_MONOLITHIC=ON
-  -DPXR_ENABLE_OSL_SUPPORT=ON
-  -DPXR_BUILD_OPENIMAGEIO_PLUGIN=ON
-  # USD 22.03 does not support OCIO 2.x
-  # Tracking ticket https://github.com/PixarAnimationStudios/USD/issues/1386
-  -DPXR_BUILD_OPENCOLORIO_PLUGIN=OFF
-  -DPXR_ENABLE_PTEX_SUPPORT=OFF
-  -DPXR_BUILD_USD_TOOLS=OFF
-  -DCMAKE_DEBUG_POSTFIX=_d
-  -DBUILD_SHARED_LIBS=Off
-  # USD is hellbound on making a shared lib, unless you point this variable to a valid cmake file
-  # doesn't have to make sense, but as long as it points somewhere valid it will skip the shared lib.
-  -DPXR_MONOLITHIC_IMPORT=${BUILD_DIR}/usd/src/external_usd/cmake/defaults/Version.cmake
+  -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
@@ -70,33 +66,29 @@ add_dependencies(
  external_usd
  external_tbb
  external_boost
-  external_openimageio
-  external_opensubdiv
-  external_osl
 )

-# Since USD 21.11 the libraries are prefixed with "usd_", i.e. "libusd_m.a" became "libusd_usd_m.a".
-# See https://github.com/PixarAnimationStudios/USD/blob/release/CHANGELOG.md#2111---2021-11-01
-if(NOT WIN32)
-  if (USD_VERSION VERSION_LESS 21.11)
-    set(PXR_LIB_PREFIX "")
-  else()
-    set(PXR_LIB_PREFIX "usd_")
-  endif()
-endif()
-
 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_usd_m.lib ${HARVEST_TARGET}/usd/lib/usd_usd_m.lib
+      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_usd_m_d.lib ${HARVEST_TARGET}/usd/lib/usd_usd_m_d.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()
@@ -108,7 +100,7 @@ else()
  # 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 ${BUILD_DIR}/usd/src/external_usd-build/pxr/lib${PXR_LIB_PREFIX}usd_m.a ${HARVEST_TARGET}/usd/lib/lib${PXR_LIB_PREFIX}usd_m.a
+    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
@@ -1,14 +1,30 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

-set(ZLIB_VERSION 1.2.12)
+set(ZLIB_VERSION 1.2.11)
 set(ZLIB_URI https://zlib.net/zlib-${ZLIB_VERSION}.tar.gz)
-set(ZLIB_HASH 5fc414a9726be31427b440b434d05f78)
+set(ZLIB_HASH 1c9f62f0778697a09d36121ead88e08e)
 set(ZLIB_HASH_TYPE MD5)
 set(ZLIB_FILE zlib-${ZLIB_VERSION}.tar.gz)

-set(OPENAL_VERSION 1.21.1)
+set(OPENAL_VERSION 1.20.1)
 set(OPENAL_URI http://openal-soft.org/openal-releases/openal-soft-${OPENAL_VERSION}.tar.bz2)
-set(OPENAL_HASH a936806ebd8de417b0ffd8cf3f48f456)
+set(OPENAL_HASH 556695068ce8375b89986083d810fd35)
 set(OPENAL_HASH_TYPE MD5)
 set(OPENAL_FILE openal-soft-${OPENAL_VERSION}.tar.bz2)

@@ -18,24 +34,24 @@ set(PNG_HASH 505e70834d35383537b6491e7ae8641f1a4bed1876dbfe361201fc80868d88ca)
 set(PNG_HASH_TYPE SHA256)
 set(PNG_FILE libpng-${PNG_VERSION}.tar.xz)

-set(JPEG_VERSION 2.1.3)
+set(JPEG_VERSION 2.0.4)
 set(JPEG_URI https://github.com/libjpeg-turbo/libjpeg-turbo/archive/${JPEG_VERSION}.tar.gz)
-set(JPEG_HASH 627b980fad0573e08e4c3b80b290fc91)
+set(JPEG_HASH 44c43e4a9fb352f47090804529317c88)
 set(JPEG_HASH_TYPE MD5)
 set(JPEG_FILE libjpeg-turbo-${JPEG_VERSION}.tar.gz)

-set(BOOST_VERSION 1.78.0)
-set(BOOST_VERSION_SHORT 1.78)
-set(BOOST_VERSION_NODOTS 1_78_0)
-set(BOOST_VERSION_NODOTS_SHORT 1_78)
+set(BOOST_VERSION 1.73.0)
+set(BOOST_VERSION_NODOTS 1_73_0)
+set(BOOST_VERSION_NODOTS_SHORT 1_73)
 set(BOOST_URI https://boostorg.jfrog.io/artifactory/main/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION_NODOTS}.tar.gz)
-set(BOOST_HASH c2f6428ac52b0e5a3c9b2e1d8cc832b5)
+set(BOOST_HASH 4036cd27ef7548b8d29c30ea10956196)
 set(BOOST_HASH_TYPE MD5)
 set(BOOST_FILE boost_${BOOST_VERSION_NODOTS}.tar.gz)

-set(BLOSC_VERSION 1.21.1)
+# Using old version as recommended by OpenVDB build documentation.
+set(BLOSC_VERSION 1.5.0)
 set(BLOSC_URI https://github.com/Blosc/c-blosc/archive/v${BLOSC_VERSION}.tar.gz)
-set(BLOSC_HASH 134b55813b1dca57019d2a2dc1f7a923)
+set(BLOSC_HASH 6e4a49c8c06f05aa543f3312cfce3d55)
 set(BLOSC_HASH_TYPE MD5)
 set(BLOSC_FILE blosc-${BLOSC_VERSION}.tar.gz)

@@ -45,19 +61,12 @@ set(PTHREADS_HASH f3bf81bb395840b3446197bcf4ecd653)
 set(PTHREADS_HASH_TYPE MD5)
 set(PTHREADS_FILE pthreads4w-code-${PTHREADS_VERSION}.zip)

-set(OPENEXR_VERSION 3.1.4)
+set(OPENEXR_VERSION 2.5.5)
 set(OPENEXR_URI https://github.com/AcademySoftwareFoundation/openexr/archive/v${OPENEXR_VERSION}.tar.gz)
-set(OPENEXR_HASH e990be1ff765797bc2d93a8060e1c1f2)
+set(OPENEXR_HASH 85e8a979092c9055d10ed103062d31a0)
 set(OPENEXR_HASH_TYPE MD5)
 set(OPENEXR_FILE openexr-${OPENEXR_VERSION}.tar.gz)

-set(IMATH_VERSION 3.1.4)
-set(IMATH_URI https://github.com/AcademySoftwareFoundation/Imath/archive/v${OPENEXR_VERSION}.tar.gz)
-set(IMATH_HASH fddf14ec73e12c34e74c3c175e311a3f)
-set(IMATH_HASH_TYPE MD5)
-set(IMATH_FILE imath-${IMATH_VERSION}.tar.gz)
-
-
 if(WIN32)
  # Openexr started appending _d on its own so now
  # we need to tell the build the postfix is _s while
@@ -74,9 +83,9 @@ else()
  set(OPENEXR_VERSION_POSTFIX)
 endif()

-set(FREETYPE_VERSION 2.11.1)
+set(FREETYPE_VERSION 2.10.2)
 set(FREETYPE_URI http://prdownloads.sourceforge.net/freetype/freetype-${FREETYPE_VERSION}.tar.gz)
-set(FREETYPE_HASH bd4e3b007474319909a6b79d50908e85)
+set(FREETYPE_HASH b1cb620e4c875cd4d1bfa04945400945)
 set(FREETYPE_HASH_TYPE MD5)
 set(FREETYPE_FILE freetype-${FREETYPE_VERSION}.tar.gz)

@@ -92,9 +101,9 @@ set(FREEGLUT_HASH 90c3ca4dd9d51cf32276bc5344ec9754)
 set(FREEGLUT_HASH_TYPE MD5)
 set(FREEGLUT_FILE freeglut-${FREEGLUT_VERSION}.tar.gz)

-set(ALEMBIC_VERSION 1.8.3)
+set(ALEMBIC_VERSION 1.7.16)
 set(ALEMBIC_URI https://github.com/alembic/alembic/archive/${ALEMBIC_VERSION}.tar.gz)
-set(ALEMBIC_HASH 2cd8d6e5a3ac4a014e24a4b04f4fadf9)
+set(ALEMBIC_HASH effcc86e42fe6605588e3de57bde6677)
 set(ALEMBIC_HASH_TYPE MD5)
 set(ALEMBIC_FILE alembic-${ALEMBIC_VERSION}.tar.gz)

@@ -119,15 +128,15 @@ set(CUEW_HASH 86760d62978ebfd96cd93f5aa1abaf4a)
 set(CUEW_HASH_TYPE MD5)
 set(CUEW_FILE cuew-${CUEW_GIT_UID}.zip)

-set(OPENSUBDIV_VERSION v3_4_4)
+set(OPENSUBDIV_VERSION v3_4_3)
 set(OPENSUBDIV_URI https://github.com/PixarAnimationStudios/OpenSubdiv/archive/${OPENSUBDIV_VERSION}.tar.gz)
-set(OPENSUBDIV_HASH 39ecc5caf0abebc943d1ce131855e76e)
+set(OPENSUBDIV_HASH 7bbfa275d021fb829e521df749160edb)
 set(OPENSUBDIV_HASH_TYPE MD5)
 set(OPENSUBDIV_FILE opensubdiv-${OPENSUBDIV_VERSION}.tar.gz)

-set(SDL_VERSION 2.0.20)
+set(SDL_VERSION 2.0.12)
 set(SDL_URI https://www.libsdl.org/release/SDL2-${SDL_VERSION}.tar.gz)
-set(SDL_HASH a53acc02e1cca98c4123229069b67c9e)
+set(SDL_HASH 783b6f2df8ff02b19bb5ce492b99c8ff)
 set(SDL_HASH_TYPE MD5)
 set(SDL_FILE SDL2-${SDL_VERSION}.tar.gz)

@@ -137,9 +146,9 @@ set(OPENCOLLADA_HASH ee7dae874019fea7be11613d07567493)
 set(OPENCOLLADA_HASH_TYPE MD5)
 set(OPENCOLLADA_FILE opencollada-${OPENCOLLADA_VERSION}.tar.gz)

-set(OPENCOLORIO_VERSION 2.1.1)
+set(OPENCOLORIO_VERSION 2.0.0)
 set(OPENCOLORIO_URI https://github.com/AcademySoftwareFoundation/OpenColorIO/archive/v${OPENCOLORIO_VERSION}.tar.gz)
-set(OPENCOLORIO_HASH 604f562e073f23d88ce89ed4f7f709ba)
+set(OPENCOLORIO_HASH 1a2e3478b6cd9a1549f24e1b2205e3f0)
 set(OPENCOLORIO_HASH_TYPE MD5)
 set(OPENCOLORIO_FILE OpenColorIO-${OPENCOLORIO_VERSION}.tar.gz)

@@ -162,74 +171,62 @@ set(OPENMP_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${
 set(OPENMP_HASH_TYPE MD5)
 set(OPENMP_FILE openmp-${OPENMP_VERSION}.src.tar.xz)

-set(OPENIMAGEIO_VERSION v2.3.13.0)
-set(OPENIMAGEIO_URI https://github.com/OpenImageIO/oiio/archive/refs/tags/${OPENIMAGEIO_VERSION}.tar.gz)
-set(OPENIMAGEIO_HASH de45fb38501c4581062b522b53b6141c)
+set(OPENIMAGEIO_VERSION 2.2.15.1)
+set(OPENIMAGEIO_URI https://github.com/OpenImageIO/oiio/archive/Release-${OPENIMAGEIO_VERSION}.tar.gz)
+set(OPENIMAGEIO_HASH 3db5c5f0b3dc91597c75e5df09eb9072)
 set(OPENIMAGEIO_HASH_TYPE MD5)
 set(OPENIMAGEIO_FILE OpenImageIO-${OPENIMAGEIO_VERSION}.tar.gz)

-# 8.0.0 is currently oiio's preferred vesion although never versions may be available.
-# the preferred version can be found in oiio's externalpackages.cmake
-set(FMT_VERSION 8.0.0)
-set(FMT_URI https://github.com/fmtlib/fmt/archive/refs/tags/${FMT_VERSION}.tar.gz)
-set(FMT_HASH 7bce0e9e022e586b178b150002e7c2339994e3c2bbe44027e9abb0d60f9cce83)
-set(FMT_HASH_TYPE SHA256)
-set(FMT_FILE fmt-${FMT_VERSION}.tar.gz)
-
-# 0.6.2 is currently oiio's preferred vesion although never versions may be available.
-# the preferred version can be found in oiio's externalpackages.cmake
-set(ROBINMAP_VERSION v0.6.2)
-set(ROBINMAP_URI https://github.com/Tessil/robin-map/archive/refs/tags/${ROBINMAP_VERSION}.tar.gz)
-set(ROBINMAP_HASH c08ec4b1bf1c85eb0d6432244a6a89862229da1cb834f3f90fba8dc35d8c8ef1)
-set(ROBINMAP_HASH_TYPE SHA256)
-set(ROBINMAP_FILE robinmap-${ROBINMAP_VERSION}.tar.gz)
-
-set(TIFF_VERSION 4.3.0)
+set(TIFF_VERSION 4.1.0)
 set(TIFF_URI http://download.osgeo.org/libtiff/tiff-${TIFF_VERSION}.tar.gz)
-set(TIFF_HASH 0a2e4744d1426a8fc8211c0cdbc3a1b3)
+set(TIFF_HASH 2165e7aba557463acc0664e71a3ed424)
 set(TIFF_HASH_TYPE MD5)
 set(TIFF_FILE tiff-${TIFF_VERSION}.tar.gz)

-set(OSL_VERSION 1.11.17.0)
+set(OSL_VERSION 1.11.14.1)
 set(OSL_URI https://github.com/imageworks/OpenShadingLanguage/archive/Release-${OSL_VERSION}.tar.gz)
-set(OSL_HASH 63265472ce14548839ace2e21e401544)
+set(OSL_HASH 1abd7ce40481771a9fa937f19595d2f2)
 set(OSL_HASH_TYPE MD5)
 set(OSL_FILE OpenShadingLanguage-${OSL_VERSION}.tar.gz)

-set(PYTHON_VERSION 3.10.2)
-set(PYTHON_SHORT_VERSION 3.10)
-set(PYTHON_SHORT_VERSION_NO_DOTS 310)
+set(PYTHON_VERSION 3.9.7)
+set(PYTHON_SHORT_VERSION 3.9)
+set(PYTHON_SHORT_VERSION_NO_DOTS 39)
 set(PYTHON_URI https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz)
-set(PYTHON_HASH 14e8c22458ed7779a1957b26cde01db9)
+set(PYTHON_HASH fddb060b483bc01850a3f412eea1d954)
 set(PYTHON_HASH_TYPE MD5)
 set(PYTHON_FILE Python-${PYTHON_VERSION}.tar.xz)

-set(TBB_VERSION 2020_U3)
+set(TBB_VERSION 2020_U2)
 set(TBB_URI https://github.com/oneapi-src/oneTBB/archive/${TBB_VERSION}.tar.gz)
-set(TBB_HASH 55ec8df6eae5ed6364a47f0e671e460c)
+set(TBB_HASH 1b711ae956524855088df3bbf5ec65dc)
 set(TBB_HASH_TYPE MD5)
 set(TBB_FILE oneTBB-${TBB_VERSION}.tar.gz)

-set(OPENVDB_VERSION 9.0.0)
+set(OPENVDB_VERSION 8.0.1)
 set(OPENVDB_URI https://github.com/AcademySoftwareFoundation/openvdb/archive/v${OPENVDB_VERSION}.tar.gz)
-set(OPENVDB_HASH 684ce40c2f74f3a0c9cac530e1c7b07e)
+set(OPENVDB_HASH 01b490be16cc0e15c690f9a153c21461)
 set(OPENVDB_HASH_TYPE MD5)
 set(OPENVDB_FILE openvdb-${OPENVDB_VERSION}.tar.gz)

-set(IDNA_VERSION 3.3)
-set(CHARSET_NORMALIZER_VERSION 2.0.10)
-set(URLLIB3_VERSION 1.26.8)
-set(CERTIFI_VERSION 2021.10.8)
-set(REQUESTS_VERSION 2.27.1)
-set(CYTHON_VERSION 0.29.26)
-# The version of the zstd library used to build the Python package should match ZSTD_VERSION defined below.
-# At this time of writing, 0.17.0 was already released, but built against zstd 1.5.1, while we use 1.5.0.
-set(ZSTANDARD_VERSION 0.16.0)
+set(NANOVDB_GIT_UID dc37d8a631922e7bef46712947dc19b755f3e841)
+set(NANOVDB_URI https://github.com/AcademySoftwareFoundation/openvdb/archive/${NANOVDB_GIT_UID}.tar.gz)
+set(NANOVDB_HASH e7b9e863ec2f3b04ead171dec2322807)
+set(NANOVDB_HASH_TYPE MD5)
+set(NANOVDB_FILE nano-vdb-${NANOVDB_GIT_UID}.tar.gz)

-set(NUMPY_VERSION 1.22.0)
-set(NUMPY_SHORT_VERSION 1.22)
+set(IDNA_VERSION 3.2)
+set(CHARSET_NORMALIZER_VERSION 2.0.6)
+set(URLLIB3_VERSION 1.26.7)
+set(CERTIFI_VERSION 2021.10.8)
+set(REQUESTS_VERSION 2.26.0)
+set(CYTHON_VERSION 0.29.24)
+set(ZSTANDARD_VERSION 0.15.2 )
+
+set(NUMPY_VERSION 1.21.2)
+set(NUMPY_SHORT_VERSION 1.21)
 set(NUMPY_URI https://github.com/numpy/numpy/releases/download/v${NUMPY_VERSION}/numpy-${NUMPY_VERSION}.zip)
-set(NUMPY_HASH 252de134862a27bd66705d29622edbfe)
+set(NUMPY_HASH 5638d5dae3ca387be562912312db842e)
 set(NUMPY_HASH_TYPE MD5)
 set(NUMPY_FILE numpy-${NUMPY_VERSION}.zip)

@@ -239,15 +236,15 @@ set(LAME_HASH 83e260acbe4389b54fe08e0bdbf7cddb)
 set(LAME_HASH_TYPE MD5)
 set(LAME_FILE lame-${LAME_VERSION}.tar.gz)

-set(OGG_VERSION 1.3.5)
+set(OGG_VERSION 1.3.4)
 set(OGG_URI http://downloads.xiph.org/releases/ogg/libogg-${OGG_VERSION}.tar.gz)
-set(OGG_HASH 0eb4b4b9420a0f51db142ba3f9c64b333f826532dc0f48c6410ae51f4799b664)
+set(OGG_HASH fe5670640bd49e828d64d2879c31cb4dde9758681bb664f9bdbf159a01b0c76e)
 set(OGG_HASH_TYPE SHA256)
 set(OGG_FILE libogg-${OGG_VERSION}.tar.gz)

-set(VORBIS_VERSION 1.3.7)
+set(VORBIS_VERSION 1.3.6)
 set(VORBIS_URI http://downloads.xiph.org/releases/vorbis/libvorbis-${VORBIS_VERSION}.tar.gz)
-set(VORBIS_HASH 0e982409a9c3fc82ee06e08205b1355e5c6aa4c36bca58146ef399621b0ce5ab)
+set(VORBIS_HASH 6ed40e0241089a42c48604dc00e362beee00036af2d8b3f46338031c9e0351cb)
 set(VORBIS_HASH_TYPE SHA256)
 set(VORBIS_FILE libvorbis-${VORBIS_VERSION}.tar.gz)

@@ -257,15 +254,15 @@ set(THEORA_HASH b6ae1ee2fa3d42ac489287d3ec34c5885730b1296f0801ae577a35193d3affbc
 set(THEORA_HASH_TYPE SHA256)
 set(THEORA_FILE libtheora-${THEORA_VERSION}.tar.bz2)

-set(FLAC_VERSION 1.3.4)
+set(FLAC_VERSION 1.3.3)
 set(FLAC_URI http://downloads.xiph.org/releases/flac/flac-${FLAC_VERSION}.tar.xz)
-set(FLAC_HASH 8ff0607e75a322dd7cd6ec48f4f225471404ae2730d0ea945127b1355155e737 )
+set(FLAC_HASH 213e82bd716c9de6db2f98bcadbc4c24c7e2efe8c75939a1a84e28539c4e1748)
 set(FLAC_HASH_TYPE SHA256)
 set(FLAC_FILE flac-${FLAC_VERSION}.tar.xz)

-set(VPX_VERSION 1.11.0)
+set(VPX_VERSION 1.8.2)
 set(VPX_URI https://github.com/webmproject/libvpx/archive/v${VPX_VERSION}/libvpx-v${VPX_VERSION}.tar.gz)
-set(VPX_HASH 965e51c91ad9851e2337aebcc0f517440c637c506f3a03948062e3d5ea129a83)
+set(VPX_HASH 8735d9fcd1a781ae6917f28f239a8aa358ce4864ba113ea18af4bb2dc8b474ac)
 set(VPX_HASH_TYPE SHA256)
 set(VPX_FILE libvpx-v${VPX_VERSION}.tar.gz)

@@ -275,9 +272,9 @@ set(OPUS_HASH 65b58e1e25b2a114157014736a3d9dfeaad8d41be1c8179866f144a2fb44ff9d)
 set(OPUS_HASH_TYPE SHA256)
 set(OPUS_FILE opus-${OPUS_VERSION}.tar.gz)

-set(X264_VERSION 35fe20d1ba49918ec739a5b068c208ca82f977f7)
+set(X264_VERSION 33f9e1474613f59392be5ab6a7e7abf60fa63622)
 set(X264_URI https://code.videolan.org/videolan/x264/-/archive/${X264_VERSION}/x264-${X264_VERSION}.tar.gz)
-set(X264_HASH bb4f7da03936b5a030ed5827133b58eb3f701d7e5dce32cca4ba6df93797d42e)
+set(X264_HASH 5456450ee1ae02cd2328be3157367a232a0ab73315e8c8f80dab80469524f525)
 set(X264_HASH_TYPE SHA256)
 set(X264_FILE x264-${X264_VERSION}.tar.gz)

@@ -287,22 +284,22 @@ set(XVIDCORE_HASH abbdcbd39555691dd1c9b4d08f0a031376a3b211652c0d8b3b8aa9be1303ce
 set(XVIDCORE_HASH_TYPE SHA256)
 set(XVIDCORE_FILE xvidcore-${XVIDCORE_VERSION}.tar.gz)

-set(OPENJPEG_VERSION 2.4.0)
-set(OPENJPEG_SHORT_VERSION 2.4)
+set(OPENJPEG_VERSION 2.3.1)
+set(OPENJPEG_SHORT_VERSION 2.3)
 set(OPENJPEG_URI https://github.com/uclouvain/openjpeg/archive/v${OPENJPEG_VERSION}.tar.gz)
-set(OPENJPEG_HASH 8702ba68b442657f11aaeb2b338443ca8d5fb95b0d845757968a7be31ef7f16d)
+set(OPENJPEG_HASH 63f5a4713ecafc86de51bfad89cc07bb788e9bba24ebbf0c4ca637621aadb6a9)
 set(OPENJPEG_HASH_TYPE SHA256)
 set(OPENJPEG_FILE openjpeg-v${OPENJPEG_VERSION}.tar.gz)

-set(FFMPEG_VERSION 5.0)
+set(FFMPEG_VERSION 4.4)
 set(FFMPEG_URI http://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.bz2)
-set(FFMPEG_HASH c0130b8db2c763430fd1c6905288d61bc44ee0548ad5fcd2dfd650b88432bed9)
+set(FFMPEG_HASH 42093549751b582cf0f338a21a3664f52e0a9fbe0d238d3c992005e493607d0e)
 set(FFMPEG_HASH_TYPE SHA256)
 set(FFMPEG_FILE ffmpeg-${FFMPEG_VERSION}.tar.bz2)

-set(FFTW_VERSION 3.3.10)
+set(FFTW_VERSION 3.3.8)
 set(FFTW_URI http://www.fftw.org/fftw-${FFTW_VERSION}.tar.gz)
-set(FFTW_HASH 8ccbf6a5ea78a16dbc3e1306e234cc5c)
+set(FFTW_HASH 8aac833c943d8e90d51b697b27d4384d)
 set(FFTW_HASH_TYPE MD5)
 set(FFTW_FILE fftw-${FFTW_VERSION}.tar.gz)

@@ -318,9 +315,9 @@ set(SNDFILE_HASH 646b5f98ce89ac60cdb060fcd398247c)
 set(SNDFILE_HASH_TYPE MD5)
 set(SNDFILE_FILE libsndfile-${SNDFILE_VERSION}.tar.gz)

-set(WEBP_VERSION 1.2.2)
+set(WEBP_VERSION 0.6.1)
 set(WEBP_URI https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-${WEBP_VERSION}.tar.gz)
-set(WEBP_HASH b5e2e414a8adee4c25fe56b18dd9c549)
+set(WEBP_HASH b49ce9c3e3e9acae4d91bca44bb85a72)
 set(WEBP_HASH_TYPE MD5)
 set(WEBP_FILE libwebp-${WEBP_VERSION}.tar.gz)

@@ -355,15 +352,9 @@ set(YAMLCPP_HASH b45bf1089a382e81f6b661062c10d0c2)
 set(YAMLCPP_HASH_TYPE MD5)
 set(YAMLCPP_FILE yaml-cpp-${YAMLCPP_VERSION}.tar.gz)

-set(PYSTRING_VERSION v1.1.3)
-set(PYSTRING_URI https://codeload.github.com/imageworks/pystring/tar.gz/refs/tags/${PYSTRING_VERSION})
-set(PYSTRING_HASH f2c68786b359f5e4e62bed53bc4fb86d)
-set(PYSTRING_HASH_TYPE MD5)
-set(PYSTRING_FILE pystring-${PYSTRING_VERSION}.tar.gz)
-
-set(EXPAT_VERSION 2_4_4)
+set(EXPAT_VERSION 2_2_10)
 set(EXPAT_URI https://github.com/libexpat/libexpat/archive/R_${EXPAT_VERSION}.tar.gz)
-set(EXPAT_HASH 2d3e81dee94b452369dc6394ff0f8f98)
+set(EXPAT_HASH 7ca5f09959fcb9a57618368deb627b9f)
 set(EXPAT_HASH_TYPE MD5)
 set(EXPAT_FILE libexpat-${EXPAT_VERSION}.tar.gz)

@@ -428,21 +419,22 @@ set(SQLITE_HASH fb558c49ee21a837713c4f1e7e413309aabdd9c7)
 set(SQLITE_HASH_TYPE SHA1)
 set(SQLITE_FILE sqlite-src-3240000.zip)

-set(EMBREE_VERSION 3.13.3)
+set(EMBREE_VERSION 3.10.0)
 set(EMBREE_URI https://github.com/embree/embree/archive/v${EMBREE_VERSION}.zip)
-set(EMBREE_HASH f62766ba54e48a2f327c3a22596e7133)
+set(EMBREE_HASH 4bbe29e7eaa46417efc75fc5f1e8eb87)
 set(EMBREE_HASH_TYPE MD5)
 set(EMBREE_FILE embree-v${EMBREE_VERSION}.zip)
+set(EMBREE_ARM_GIT https://github.com/brechtvl/embree.git)

-set(USD_VERSION 22.03)
+set(USD_VERSION 21.02)
 set(USD_URI https://github.com/PixarAnimationStudios/USD/archive/v${USD_VERSION}.tar.gz)
-set(USD_HASH e0e441a05057692a83124a1195b09eed)
+set(USD_HASH 1dd1e2092d085ed393c1f7c450a4155a)
 set(USD_HASH_TYPE MD5)
 set(USD_FILE usd-v${USD_VERSION}.tar.gz)

-set(OIDN_VERSION 1.4.3)
+set(OIDN_VERSION 1.4.1)
 set(OIDN_URI https://github.com/OpenImageDenoise/oidn/releases/download/v${OIDN_VERSION}/oidn-${OIDN_VERSION}.src.tar.gz)
-set(OIDN_HASH 027093eaf5e8b4e45835b991137b38e6)
+set(OIDN_HASH df4007b0ab93b1c41cdf223b075d01c0)
 set(OIDN_HASH_TYPE MD5)
 set(OIDN_FILE oidn-${OIDN_VERSION}.src.tar.gz)

@@ -464,9 +456,9 @@ set(NASM_HASH aded8b796c996a486a56e0515c83e414116decc3b184d88043480b32eb0a8589)
 set(NASM_HASH_TYPE SHA256)
 set(NASM_FILE nasm-${NASM_VERSION}.tar.gz)

-set(XR_OPENXR_SDK_VERSION 1.0.22)
+set(XR_OPENXR_SDK_VERSION 1.0.17)
 set(XR_OPENXR_SDK_URI https://github.com/KhronosGroup/OpenXR-SDK/archive/release-${XR_OPENXR_SDK_VERSION}.tar.gz)
-set(XR_OPENXR_SDK_HASH a2623ebab3d0b340bc16311b14f02075)
+set(XR_OPENXR_SDK_HASH bf0fd8828837edff01047474e90013e1)
 set(XR_OPENXR_SDK_HASH_TYPE MD5)
 set(XR_OPENXR_SDK_FILE OpenXR-SDK-${XR_OPENXR_SDK_VERSION}.tar.gz)

@@ -476,15 +468,15 @@ set(WL_PROTOCOLS_URI https://gitlab.freedesktop.org/wayland/wayland-protocols/-/
 set(WL_PROTOCOLS_HASH af5ca07e13517cdbab33504492cef54a)
 set(WL_PROTOCOLS_HASH_TYPE MD5)

-set(ISPC_VERSION v1.17.0)
+set(ISPC_VERSION v1.16.0)
 set(ISPC_URI https://github.com/ispc/ispc/archive/${ISPC_VERSION}.tar.gz)
-set(ISPC_HASH 4f476a3109332a77fe839a9014c60ca9)
+set(ISPC_HASH 2e3abedbc0ea9aaec17d6562c632454d)
 set(ISPC_HASH_TYPE MD5)
 set(ISPC_FILE ispc-${ISPC_VERSION}.tar.gz)

-set(GMP_VERSION 6.2.1)
+set(GMP_VERSION 6.2.0)
 set(GMP_URI https://gmplib.org/download/gmp/gmp-${GMP_VERSION}.tar.xz)
-set(GMP_HASH 0b82665c4a92fd2ade7440c13fcaa42b)
+set(GMP_HASH a325e3f09e6d91e62101e59f9bda3ec1)
 set(GMP_HASH_TYPE MD5)
 set(GMP_FILE gmp-${GMP_VERSION}.tar.xz)

@@ -508,15 +500,3 @@ set(ZSTD_FILE zstd-${ZSTD_VERSION}.tar.gz)

 set(SSE2NEON_GIT https://github.com/DLTcollab/sse2neon.git)
 set(SSE2NEON_GIT_HASH fe5ff00bb8d19b327714a3c290f3e2ce81ba3525)
-
-set(BROTLI_VERSION v1.0.9)
-set(BROTLI_URI https://github.com/google/brotli/archive/refs/tags/${BROTLI_VERSION}.tar.gz)
-set(BROTLI_HASH f9e8d81d0405ba66d181529af42a3354f838c939095ff99930da6aa9cdf6fe46)
-set(BROTLI_HASH_TYPE SHA256)
-set(BROTLI_FILE brotli-${BROTLI_VERSION}.tar.gz)
-
-set(LEVEL_ZERO_VERSION v1.7.15)
-set(LEVEL_ZERO_URI https://github.com/oneapi-src/level-zero/archive/refs/tags/${LEVEL_ZERO_VERSION}.tar.gz)
-set(LEVEL_ZERO_HASH c39bb05a8e5898aa6c444e1704105b93d3f1888b9c333f8e7e73825ffbfb2617)
-set(LEVEL_ZERO_HASH_TYPE SHA256)
-set(LEVEL_ZERO_FILE level-zero-${LEVEL_ZERO_VERSION}.tar.gz)
--- a/build_files/build_environment/cmake/vorbis.cmake
+++ b/build_files/build_environment/cmake/vorbis.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_vorbis
  URL file://${PACKAGE_DIR}/${VORBIS_FILE}
--- a/build_files/build_environment/cmake/vpx.cmake
+++ b/build_files/build_environment/cmake/vpx.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
--- a/build_files/build_environment/cmake/wayland_protocols.cmake
+++ b/build_files/build_environment/cmake/wayland_protocols.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_wayland_protocols
  URL file://${PACKAGE_DIR}/${WL_PROTOCOLS_FILE}
--- a/build_files/build_environment/cmake/webp.cmake
+++ b/build_files/build_environment/cmake/webp.cmake
@@ -1,18 +1,28 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

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

 set(WEBP_EXTRA_ARGS
-  -DWEBP_BUILD_ANIM_UTILS=OFF
-  -DWEBP_BUILD_CWEBP=OFF
-  -DWEBP_BUILD_DWEBP=OFF
-  -DWEBP_BUILD_GIF2WEBP=OFF
-  -DWEBP_BUILD_IMG2WEBP=OFF
-  -DWEBP_BUILD_VWEBP=OFF
-  -DWEBP_BUILD_WEBPINFO=OFF
-  -DWEBP_BUILD_WEBPMUX=OFF
-  -DWEBP_BUILD_EXTRAS=OFF
+  -DWEBP_HAVE_SSE2=ON
+  -DWEBP_HAVE_SSE41=OFF
+  -DWEBP_HAVE_AVX2=OFF
 )

 if(WIN32)
--- a/build_files/build_environment/cmake/x264.cmake
+++ b/build_files/build_environment/cmake/x264.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(X264_EXTRA_ARGS --enable-win32thread --cross-prefix=${MINGW_HOST}- --host=${MINGW_HOST})
--- a/build_files/build_environment/cmake/xml2.cmake
+++ b/build_files/build_environment/cmake/xml2.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_xml2
  URL file://${PACKAGE_DIR}/${XML2_FILE}
--- a/build_files/build_environment/cmake/xr_openxr.cmake
+++ b/build_files/build_environment/cmake/xr_openxr.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****


 # Keep flags in sync with install_deps.sh ones in compile_XR_OpenXR_SDK()
--- a/build_files/build_environment/cmake/xvidcore.cmake
+++ b/build_files/build_environment/cmake/xvidcore.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 if(WIN32)
  set(XVIDCORE_EXTRA_ARGS --host=${MINGW_HOST})
--- a/build_files/build_environment/cmake/yamlcpp.cmake
+++ b/build_files/build_environment/cmake/yamlcpp.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(YAMLCPP_EXTRA_ARGS
  -DYAML_CPP_BUILD_TESTS=OFF
--- a/build_files/build_environment/cmake/zlib.cmake
+++ b/build_files/build_environment/cmake/zlib.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_zlib
  URL file://${PACKAGE_DIR}/${ZLIB_FILE}
--- a/build_files/build_environment/cmake/zlib_mingw.cmake
+++ b/build_files/build_environment/cmake/zlib_mingw.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_zlib_mingw
  URL file://${PACKAGE_DIR}/${ZLIB_FILE}
--- a/build_files/build_environment/cmake/zstd.cmake
+++ b/build_files/build_environment/cmake/zstd.cmake
@@ -1,4 +1,20 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****

 set(ZSTD_EXTRA_ARGS
  -DZSTD_BUILD_PROGRAMS=OFF
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
--- a/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright 2016 Blender Foundation.
-
 # - Find BLOSC library
 # Find the native BLOSC includes and library
 # This module defines
@@ -14,6 +11,17 @@
 # also defined, but not for general use are
 #  BLOSC_LIBRARY, where to find the BLOSC library.

+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
 # If BLOSC_ROOT_DIR was defined in the environment, use it.
 IF(NOT BLOSC_ROOT_DIR AND NOT $ENV{BLOSC_ROOT_DIR} STREQUAL "")
  SET(BLOSC_ROOT_DIR $ENV{BLOSC_ROOT_DIR})
--- a/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright 2016 Blender Foundation.
-
 # - Find CPPUNIT library
 # Find the native CPPUNIT includes and library
 # This module defines
@@ -14,6 +11,17 @@
 # also defined, but not for general use are
 #  CPPUNIT_LIBRARY, where to find the CPPUNIT library.

+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
 # If CPPUNIT_ROOT_DIR was defined in the environment, use it.
 IF(NOT CPPUNIT_ROOT_DIR AND NOT $ENV{CPPUNIT_ROOT_DIR} STREQUAL "")
  SET(CPPUNIT_ROOT_DIR $ENV{CPPUNIT_ROOT_DIR})
--- a/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
@@ -1,5 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-
 # Module to find IlmBase
 #
 # This module will first look into the directories defined by the variables:
--- a/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright 2016 Blender Foundation.
-
 # - Find LOGC4PLUS library
 # Find the native LOGC4PLUS includes and library
 # This module defines
@@ -14,6 +11,17 @@
 # also defined, but not for general use are
 #  LOGC4PLUS_LIBRARY, where to find the LOGC4PLUS library.

+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
 # If LOGC4PLUS_ROOT_DIR was defined in the environment, use it.
 IF(NOT LOGC4PLUS_ROOT_DIR AND NOT $ENV{LOGC4PLUS_ROOT_DIR} STREQUAL "")
  SET(LOGC4PLUS_ROOT_DIR $ENV{LOGC4PLUS_ROOT_DIR})
--- a/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
@@ -1,5 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-
 # Module to find OpenEXR.
 #
 # This module will first look into the directories defined by the variables:
--- a/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright 2016 Blender Foundation.
-
 # - Find TBB library
 # Find the native TBB includes and library
 # This module defines
@@ -14,6 +11,17 @@
 # also defined, but not for general use are
 #  TBB_LIBRARY, where to find the TBB library.

+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
 # If TBB_ROOT_DIR was defined in the environment, use it.
 IF(NOT TBB_ROOT_DIR AND NOT $ENV{TBB_ROOT_DIR} STREQUAL "")
  SET(TBB_ROOT_DIR $ENV{TBB_ROOT_DIR})
--- a/Show More
+++ b/Show More