Refactor the Custom Space patch.

Instead of modifying all the get_constraint_targets and flush_constraint_targets callbacks, introduce wrapper API functions and handle the new reference there. Also, it is not needed to do all the target dance to compute the space_obj_world_matrix.
Add Custom Space to Constraints
2020-11-23 23:42:05 +03:00 · 2020-11-23 19:37:20 +03:00
5570 changed files with 184341 additions and 386889 deletions
--- a/.clang-format
+++ b/.clang-format
@@ -2,7 +2,7 @@
 # Configuration of clang-format
 # =============================
 #
-# Tested to work with versions: 8 to 11.
+# Tested to work with versions: 6 to 8.

 # This causes parameters on continuations to align to the opening brace.
 #
@@ -161,7 +161,6 @@ PenaltyBreakString: 1000000
 # "^\s+[A-Z][A-Z0-9_]+\s*\([^\n]*\)\n\s*\{"
 ForEachMacros:
  - BEGIN_ANIMFILTER_SUBCHANNELS
-  - BKE_pbvh_vertex_iter_begin
  - BLI_FOREACH_SPARSE_RANGE
  - BLI_SMALLSTACK_ITER_BEGIN
  - BMO_ITER
@@ -255,7 +254,7 @@ ForEachMacros:
  - SCULPT_VERTEX_DUPLICATES_AND_NEIGHBORS_ITER_BEGIN
  - SCULPT_VERTEX_NEIGHBORS_ITER_BEGIN
  - SEQ_ALL_BEGIN
-  - SEQ_ITERATOR_FOREACH
+  - SEQ_CURRENT_BEGIN
  - SURFACE_QUAD_ITER_BEGIN
  - foreach
  - ED_screen_areas_iter
@@ -264,6 +263,8 @@ ForEachMacros:
  - MAP_SLOT_PROBING_BEGIN
  - VECTOR_SET_SLOT_PROBING_BEGIN

-StatementMacros:
-  - PyObject_HEAD
-  - PyObject_VAR_HEAD
+# Use once we bump the minimum version to version 8.
+# # Without this string literals that in-line 'STRINGIFY' behave strangely (a bug?).
+# StatementMacros:
+#   - PyObject_VAR_HEAD
+#   - STRINGIFY
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -34,14 +34,17 @@ Checks:  >
  modernize-*,
  -modernize-use-auto,
  -modernize-use-trailing-return-type,
+  -modernize-deprecated-headers,
  -modernize-avoid-c-arrays,
+  -modernize-use-equals-default,
  -modernize-use-nodiscard,
+  -modernize-use-using,
  -modernize-loop-convert,
  -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-use-default-member-init,
+  -modernize-raw-string-literal,
+  -modernize-avoid-bind,
+  -modernize-use-override,
+  -modernize-use-transparent-functors,

-CheckOptions:
-  - key: modernize-use-default-member-init.UseAssignment
-    value: 1
+WarningsAsErrors: '*'
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -10,9 +10,8 @@
 # Changes that belong here:
 # - Massive comment, doxy-sections, or spelling corrections.
 # - Clang-format, PEP8 or other automated changes which are *strictly* "no functional change".
-# - Several commits should be added to this list at once, because adding
-#   one extra commit (to edit this file) after every cleanup is noisy.
-# - No clang-tidy changes.
+# - Several smaller commits should be added to this list at once, because adding
+#   one extra commit (to edit this file) after every small cleanup is noisy.
 #
 # Note:
 # - The comment above the SHA should be the first line of the commit.
@@ -92,13 +91,3 @@ c42a6b77b52560d257279de2cb624b4ef2c0d24c

 # Cleanup: use doxy sections for imbuf
 c207f7c22e1439e0b285fba5d2c072bdae23f981
-
-# Cleanup: clang-format
-c4d8f6a4a8ddc29ed27311ed7578b3c8c31399d2
-b5d310b569e07a937798a2d38539cfd290149f1c
-8c846cccd6bdfd3e90a695fabbf05f53e5466a57
-4eac03d821fa17546f562485f7d073813a5e5943
-1166110a9d66af9c5a47cee2be591f50fdc445e8
-
-# Cleanup: clang-format.
-40d4a4cb1a6b4c3c2a486e8f2868f547530e0811
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,3 @@ Desktop.ini

 # smoke simulation noise tile (generated)
 waveletNoiseTile.bin
-
-# testing environment
-/Testing
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,9 +63,6 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/build_files/cmake/platform")
 # avoid having empty buildtype
 if(NOT DEFINED CMAKE_BUILD_TYPE_INIT)
  set(CMAKE_BUILD_TYPE_INIT "Release")
-  # Internal logic caches this variable, avoid showing it by default
-  # since it's easy to accidentally set instead of the build type.
-  mark_as_advanced(CMAKE_BUILD_TYPE_INIT)
 endif()

 # Omit superfluous "Up-to-date" messages.
@@ -110,10 +107,6 @@ if(POLICY CMP0074)
  cmake_policy(SET CMP0074 NEW)
 endif()

-# Install CODE|SCRIPT allow the use of generator expressions.
-if(POLICY CMP0087)
-  cmake_policy(SET CMP0087 NEW)
-endif()
 #-----------------------------------------------------------------------------
 # Load some macros.
 include(build_files/cmake/macros.cmake)
@@ -171,6 +164,10 @@ if(APPLE)
 endif()

 option(WITH_BUILDINFO     "Include extra build details (only disable for development & faster builds)" ON)
+if(${CMAKE_VERSION} VERSION_LESS 2.8.8)
+  # add_library OBJECT arg unsupported
+  set(WITH_BUILDINFO OFF)
+endif()
 set(BUILDINFO_OVERRIDE_DATE "" CACHE STRING "Use instead of the current date for reproducible builds (empty string disables this option)")
 set(BUILDINFO_OVERRIDE_TIME "" CACHE STRING "Use instead of the current time for reproducible builds (empty string disables this option)")
 set(CPACK_OVERRIDE_PACKAGENAME "" CACHE STRING "Use instead of the standard packagename (empty string disables this option)")
@@ -181,7 +178,6 @@ mark_as_advanced(BUILDINFO_OVERRIDE_TIME)
 option(WITH_IK_ITASC      "Enable ITASC IK solver (only disable for development & for incompatible C++ compilers)" ON)
 option(WITH_IK_SOLVER     "Enable Legacy IK solver (only disable for development)" ON)
 option(WITH_FFTW3         "Enable FFTW3 support (Used for smoke, ocean sim, and audio effects)" ON)
-option(WITH_PUGIXML       "Enable PugiXML support (Used for OpenImageIO, Grease Pencil SVG export)" ON)
 option(WITH_BULLET        "Enable Bullet (Physics Engine)" ON)
 option(WITH_SYSTEM_BULLET "Use the systems bullet library (currently unsupported due to missing features in upstream!)" )
 mark_as_advanced(WITH_SYSTEM_BULLET)
@@ -208,7 +204,6 @@ option(WITH_OPENVDB_BLOSC "Enable blosc compression for OpenVDB, only enable if
 option(WITH_OPENVDB_3_ABI_COMPATIBLE "Assume OpenVDB library has been compiled with version 3 ABI compatibility" OFF)
 mark_as_advanced(WITH_OPENVDB_3_ABI_COMPATIBLE)
 option(WITH_NANOVDB       "Enable usage of NanoVDB data structure for rendering on the GPU" ON)
-option(WITH_HARU          "Enable features relying on Libharu (Grease pencil PDF export)" ON)

 # GHOST Windowing Library Options
 option(WITH_GHOST_DEBUG   "Enable debugging output for the GHOST library" OFF)
@@ -240,7 +235,9 @@ option(WITH_SYSTEM_AUDASPACE "Build with external audaspace library installed on
 mark_as_advanced(WITH_AUDASPACE)
 mark_as_advanced(WITH_SYSTEM_AUDASPACE)

-set_and_warn_dependency(WITH_AUDASPACE WITH_SYSTEM_AUDASPACE OFF)
+if(NOT WITH_AUDASPACE)
+  set(WITH_SYSTEM_AUDASPACE OFF)
+endif()

 option(WITH_OPENMP        "Enable OpenMP (has to be supported by the compiler)" ON)
 if(UNIX AND NOT APPLE)
@@ -302,33 +299,15 @@ option(WITH_OPENCOLLADA   "Enable OpenCollada Support (http://www.opencollada.or
 # Sound output
 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)
-else()
-  set(WITH_COREAUDIO OFF)
-endif()
 if(NOT WIN32)
  option(WITH_JACK          "Enable JACK Support (http://www.jackaudio.org)" ON)
  if(UNIX AND NOT APPLE)
    option(WITH_JACK_DYNLOAD  "Enable runtime dynamic JACK libraries loading" OFF)
  endif()
-else()
-  set(WITH_JACK OFF)
 endif()
 if(UNIX AND NOT APPLE)
  option(WITH_SDL_DYNLOAD  "Enable runtime dynamic SDL libraries loading" OFF)
 endif()
-if(UNIX AND NOT APPLE)
-  option(WITH_PULSEAUDIO   "Enable PulseAudio for audio support on Linux" ON)
-  option(WITH_PULSEAUDIO_DYNLOAD  "Enable runtime dynamic PulseAudio libraries loading" OFF)
-else()
-  set(WITH_PULSEAUDIO OFF)
-endif()
-if(WIN32)
-  option(WITH_WASAPI      "Enable Windows Audio Sessions API for audio support on Windows" ON)
-else()
-  set(WITH_WASAPI OFF)
-endif()

 # Compression
 option(WITH_LZO           "Enable fast LZO compression (used for pointcache)" ON)
@@ -353,7 +332,7 @@ mark_as_advanced(WITH_SYSTEM_GLOG)
 option(WITH_FREESTYLE     "Enable Freestyle (advanced edges rendering)" ON)

 # Misc
-if(WIN32 OR APPLE)
+if(WIN32)
  option(WITH_INPUT_IME "Enable Input Method Editor (IME) for complex Asian character input" ON)
 endif()
 option(WITH_INPUT_NDOF "Enable NDOF input devices (SpaceNavigator and friends)" ON)
@@ -367,21 +346,16 @@ if(UNIX AND NOT APPLE)
 endif()

 option(WITH_PYTHON_INSTALL       "Copy system python into the blender install folder" ON)
-
-if((WITH_AUDASPACE AND NOT WITH_SYSTEM_AUDASPACE) OR WITH_MOD_FLUID)
-  option(WITH_PYTHON_NUMPY "Include NumPy in Blender (used by Audaspace and Mantaflow)"  ON)
-endif()
-
 if(WIN32 OR APPLE)
  # Windows and macOS have this bundled with Python libraries.
-elseif(WITH_PYTHON_INSTALL OR WITH_PYTHON_NUMPY)
+elseif(WITH_PYTHON_INSTALL OR (WITH_AUDASPACE AND NOT WITH_SYSTEM_AUDASPACE))
  set(PYTHON_NUMPY_PATH            "" CACHE PATH "Path to python site-packages or dist-packages containing 'numpy' module")
  mark_as_advanced(PYTHON_NUMPY_PATH)
-  set(PYTHON_NUMPY_INCLUDE_DIRS    "" CACHE PATH "Path to the include directory of the NumPy module")
+  set(PYTHON_NUMPY_INCLUDE_DIRS ${PYTHON_NUMPY_PATH}/numpy/core/include CACHE PATH "Path to the include directory of the numpy module")
  mark_as_advanced(PYTHON_NUMPY_INCLUDE_DIRS)
 endif()
 if(WITH_PYTHON_INSTALL)
-  option(WITH_PYTHON_INSTALL_NUMPY "Copy system NumPy into the blender install folder"  ON)
+  option(WITH_PYTHON_INSTALL_NUMPY "Copy system numpy into the blender install folder"  ON)

  if(UNIX AND NOT APPLE)
    option(WITH_PYTHON_INSTALL_REQUESTS "Copy system requests into the blender install folder" ON)
@@ -390,8 +364,8 @@ if(WITH_PYTHON_INSTALL)
  endif()
 endif()

-option(WITH_CPU_SIMD              "Enable SIMD instruction if they're detected on the host machine" ON)
-mark_as_advanced(WITH_CPU_SIMD)
+option(WITH_CPU_SSE              "Enable SIMD instruction if they're detected on the host machine" ON)
+mark_as_advanced(WITH_CPU_SSE)

 # Cycles
 option(WITH_CYCLES                  "Enable Cycles Render Engine" ON)
@@ -403,18 +377,17 @@ option(WITH_CYCLES_CUDA_BINARIES    "Build Cycles CUDA binaries" OFF)
 option(WITH_CYCLES_CUBIN_COMPILER   "Build cubins with nvrtc based compiler instead of nvcc" OFF)
 option(WITH_CYCLES_CUDA_BUILD_SERIAL "Build cubins one after another (useful on machines with limited RAM)" OFF)
 mark_as_advanced(WITH_CYCLES_CUDA_BUILD_SERIAL)
-set(CYCLES_TEST_DEVICES CPU CACHE STRING "Run regression tests on the specified device types (CPU CUDA OPTIX OPENCL)" )
 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")
 mark_as_advanced(CYCLES_CUDA_BINARIES_ARCH)
 unset(PLATFORM_DEFAULT)
-option(WITH_CYCLES_LOGGING      "Build Cycles with logging support" ON)
-option(WITH_CYCLES_DEBUG_NAN    "Build Cycles with additional asserts for detecting NaNs and invalid values" OFF)
+option(WITH_CYCLES_LOGGING  "Build Cycles with logging support" ON)
+option(WITH_CYCLES_DEBUG    "Build Cycles with extra debug capabilities" 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)
 mark_as_advanced(WITH_CYCLES_KERNEL_ASAN)
 mark_as_advanced(WITH_CYCLES_CUBIN_COMPILER)
 mark_as_advanced(WITH_CYCLES_LOGGING)
-mark_as_advanced(WITH_CYCLES_DEBUG_NAN)
+mark_as_advanced(WITH_CYCLES_DEBUG)
 mark_as_advanced(WITH_CYCLES_NATIVE_ONLY)

 option(WITH_CYCLES_DEVICE_CUDA              "Enable Cycles CUDA compute support" ON)
@@ -428,10 +401,6 @@ mark_as_advanced(WITH_CYCLES_NETWORK)
 option(WITH_CUDA_DYNLOAD "Dynamically load CUDA libraries at runtime" ON)
 mark_as_advanced(WITH_CUDA_DYNLOAD)

-# Draw Manager
-option(WITH_DRAW_DEBUG "Add extra debug capabilities to Draw Manager" OFF)
-mark_as_advanced(WITH_DRAW_DEBUG)
-
 # LLVM
 option(WITH_LLVM                    "Use LLVM" OFF)
 if(APPLE)
@@ -440,7 +409,6 @@ else()
  option(LLVM_STATIC                  "Link with LLVM static libraries" OFF)
 endif()
 mark_as_advanced(LLVM_STATIC)
-option(WITH_CLANG                   "Use Clang" OFF)

 # disable for now, but plan to support on all platforms eventually
 option(WITH_MEM_JEMALLOC   "Enable malloc replacement (http://www.canonware.com/jemalloc)" ON)
@@ -457,8 +425,8 @@ mark_as_advanced(WITH_CXX_GUARDEDALLOC)
 option(WITH_ASSERT_ABORT "Call abort() when raising an assertion through BLI_assert()" ON)
 mark_as_advanced(WITH_ASSERT_ABORT)

-if((UNIX AND NOT APPLE) OR (CMAKE_GENERATOR MATCHES "^Visual Studio.+"))
-  option(WITH_CLANG_TIDY "Use Clang Tidy to analyze the source code (only enable for development on Linux using Clang, or Windows using the Visual Studio IDE)" OFF)
+if(UNIX AND NOT APPLE)
+  option(WITH_CLANG_TIDY "Use Clang Tidy to analyze the source code (only enable for development on Linux using Clang)" OFF)
  mark_as_advanced(WITH_CLANG_TIDY)
 endif()

@@ -528,10 +496,10 @@ if(CMAKE_COMPILER_IS_GNUCC)
  mark_as_advanced(WITH_LINKER_LLD)
 endif()

-option(WITH_COMPILER_ASAN "Build and link against address sanitizer (only for Debug & RelWithDebInfo targets)." OFF)
-mark_as_advanced(WITH_COMPILER_ASAN)
-
 if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
+  option(WITH_COMPILER_ASAN "Build and link against address sanitizer (only for Debug & RelWithDebInfo targets)." OFF)
+  mark_as_advanced(WITH_COMPILER_ASAN)
+
  if(WITH_COMPILER_ASAN)
    set(_asan_defaults "\
 -fsanitize=address \
@@ -612,6 +580,12 @@ if(WIN32)
  option(WITH_WINDOWS_FIND_MODULES "Use find_package to locate libraries" OFF)
  mark_as_advanced(WITH_WINDOWS_FIND_MODULES)

+  option(WINDOWS_USE_VISUAL_STUDIO_PROJECT_FOLDERS "Organize the visual studio projects according to source folder structure." ON)
+  mark_as_advanced(WINDOWS_USE_VISUAL_STUDIO_PROJECT_FOLDERS)
+
+  option(WINDOWS_USE_VISUAL_STUDIO_SOURCE_FOLDERS "Organize the source files in filters matching the source folders." ON)
+  mark_as_advanced(WINDOWS_USE_VISUAL_STUDIO_SOURCE_FOLDERS)
+
  option(WINDOWS_PYTHON_DEBUG "Include the files needed for debugging python scripts with visual studio 2017+." OFF)
  mark_as_advanced(WINDOWS_PYTHON_DEBUG)

@@ -629,24 +603,6 @@ if(WIN32)

 endif()

-if(WIN32 OR XCODE)
-  option(IDE_GROUP_SOURCES_IN_FOLDERS "Organize the source files in filters matching the source folders." ON)
-  mark_as_advanced(IDE_GROUP_SOURCES_IN_FOLDERS)
-
-  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)
-    set_property(GLOBAL PROPERTY USE_FOLDERS ON)
-  endif()
-endif()
-
-if(UNIX)
-  # See WITH_WINDOWS_SCCACHE for Windows.
-  option(WITH_COMPILER_CCACHE "Use ccache to improve rebuild times (Works with Ninja, Makefiles and Xcode)" OFF)
-  mark_as_advanced(WITH_COMPILER_CCACHE)
-endif()
-
 # The following only works with the Ninja generator in CMake >= 3.0.
 if("${CMAKE_GENERATOR}" MATCHES "Ninja")
  option(WITH_NINJA_POOL_JOBS
@@ -701,11 +657,16 @@ if(NOT WITH_BLENDER AND NOT WITH_CYCLES_STANDALONE)
  )
 endif()

-set_and_warn_dependency(WITH_AUDASPACE WITH_OPENAL OFF)
-set_and_warn_dependency(WITH_AUDASPACE WITH_COREAUDIO OFF)
-set_and_warn_dependency(WITH_AUDASPACE WITH_JACK OFF)
-set_and_warn_dependency(WITH_AUDASPACE WITH_PULSEAUDIO OFF)
-set_and_warn_dependency(WITH_AUDASPACE WITH_WASAPI OFF)
+if(NOT WITH_AUDASPACE)
+  if(WITH_OPENAL)
+    message(WARNING "WITH_OPENAL requires WITH_AUDASPACE which is disabled")
+    set(WITH_OPENAL OFF)
+  endif()
+  if(WITH_JACK)
+    message(WARNING "WITH_JACK requires WITH_AUDASPACE which is disabled")
+    set(WITH_JACK OFF)
+  endif()
+endif()

 if(NOT WITH_SDL AND WITH_GHOST_SDL)
  message(FATAL_ERROR "WITH_GHOST_SDL requires WITH_SDL")
@@ -716,8 +677,10 @@ if(WITH_PYTHON_MODULE AND WITH_PYTHON_INSTALL)
  message(FATAL_ERROR "WITH_PYTHON_MODULE requires WITH_PYTHON_INSTALL to be OFF")
 endif()

-set_and_warn_dependency(WITH_PYTHON WITH_CYCLES        OFF)
-set_and_warn_dependency(WITH_PYTHON WITH_DRACO         OFF)
+if(NOT WITH_PYTHON)
+  set(WITH_CYCLES OFF)
+  set(WITH_DRACO OFF)
+endif()

 if(WITH_DRACO AND NOT WITH_PYTHON_INSTALL)
  message(STATUS "WITH_DRACO requires WITH_PYTHON_INSTALL to be ON, disabling WITH_DRACO for now")
@@ -734,8 +697,6 @@ set_and_warn_dependency(WITH_BOOST WITH_OPENCOLORIO    OFF)
 set_and_warn_dependency(WITH_BOOST WITH_QUADRIFLOW     OFF)
 set_and_warn_dependency(WITH_BOOST WITH_USD            OFF)
 set_and_warn_dependency(WITH_BOOST WITH_ALEMBIC        OFF)
-set_and_warn_dependency(WITH_PUGIXML WITH_CYCLES_OSL   OFF)
-set_and_warn_dependency(WITH_PUGIXML WITH_OPENIMAGEIO  OFF)

 if(WITH_BOOST AND NOT (WITH_CYCLES OR WITH_OPENIMAGEIO OR WITH_INTERNATIONAL OR
   WITH_OPENVDB OR WITH_OPENCOLORIO OR WITH_USD OR WITH_ALEMBIC))
@@ -752,12 +713,8 @@ set_and_warn_dependency(WITH_TBB WITH_MOD_FLUID         OFF)
 # NanoVDB requires OpenVDB to convert the data structure
 set_and_warn_dependency(WITH_OPENVDB WITH_NANOVDB       OFF)

-# OpenVDB and OpenColorIO uses 'half' type from OpenEXR
+# OpenVDB uses 'half' type from OpenEXR & fails to link without OpenEXR enabled.
 set_and_warn_dependency(WITH_IMAGE_OPENEXR WITH_OPENVDB OFF)
-set_and_warn_dependency(WITH_IMAGE_OPENEXR WITH_OPENCOLORIO  OFF)
-
-# Haru needs `TIFFFaxBlackCodes` & `TIFFFaxWhiteCodes` symbols from TIFF.
-set_and_warn_dependency(WITH_IMAGE_TIFF WITH_HARU       OFF)

 # auto enable openimageio for cycles
 if(WITH_CYCLES)
@@ -766,7 +723,6 @@ if(WITH_CYCLES)
  # auto enable llvm for cycles_osl
  if(WITH_CYCLES_OSL)
    set(WITH_LLVM ON CACHE BOOL "" FORCE)
-    set(WITH_CLANG ON CACHE BOOL "" FORCE)
  endif()
 else()
  set(WITH_CYCLES_OSL OFF)
@@ -789,7 +745,6 @@ if(WITH_INSTALL_PORTABLE)
 endif()

 if(WITH_GHOST_SDL OR WITH_HEADLESS)
-  message(STATUS "Disabling Ghost Wayland, X11, Input IME, and OpenXR")
  set(WITH_GHOST_WAYLAND OFF)
  set(WITH_GHOST_X11     OFF)
  set(WITH_X11_XINPUT    OFF)
@@ -801,6 +756,14 @@ if(WITH_GHOST_SDL OR WITH_HEADLESS)
  set(WITH_XR_OPENXR     OFF)
 endif()

+if(WITH_CPU_SSE)
+  TEST_SSE_SUPPORT(COMPILER_SSE_FLAG COMPILER_SSE2_FLAG)
+else()
+  message(STATUS "SSE and SSE2 optimizations are DISABLED!")
+  set(COMPILER_SSE_FLAG)
+  set(COMPILER_SSE2_FLAG)
+endif()
+
 if(WITH_BUILDINFO)
  find_package(Git)
  if(NOT GIT_FOUND)
@@ -820,7 +783,7 @@ endif()
 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")
+    message("CUDA toolkit not found, using dynamic runtime loading of libraries instead")
    set(WITH_CUDA_DYNLOAD ON)
  endif()
 endif()
@@ -849,8 +812,8 @@ 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 "3.9")
-    message(FATAL_ERROR "At least Python 3.9 is required to build, but found Python ${PYTHON_VERSION}")
+  if(DEFINED PYTHON_VERSION AND "${PYTHON_VERSION}" VERSION_LESS "3.7")
+    message(FATAL_ERROR "At least Python 3.7 is required to build")
  endif()

  file(GLOB RESULT "${CMAKE_SOURCE_DIR}/release/scripts/addons")
@@ -912,11 +875,9 @@ if(NOT CMAKE_BUILD_TYPE MATCHES "Release")

    if(APPLE AND COMPILER_ASAN_LIBRARY)
      string(REPLACE " " ";" _list_COMPILER_ASAN_CFLAGS ${COMPILER_ASAN_CFLAGS})
-      set(_is_CONFIG_DEBUG "$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>")
-      add_compile_options("$<${_is_CONFIG_DEBUG}:${_list_COMPILER_ASAN_CFLAGS}>")
-      add_link_options("$<${_is_CONFIG_DEBUG}:-fno-omit-frame-pointer;-fsanitize=address>")
+      add_compile_options("$<$<NOT:$<CONFIG:Release>>:${_list_COMPILER_ASAN_CFLAGS}>")
+      add_link_options("$<$<NOT:$<CONFIG:Release>>:-fno-omit-frame-pointer;-fsanitize=address>")
      unset(_list_COMPILER_ASAN_CFLAGS)
-      unset(_is_CONFIG_DEBUG)
    elseif(COMPILER_ASAN_LIBRARY)
      set(PLATFORM_LINKLIBS "${PLATFORM_LINKLIBS};${COMPILER_ASAN_LIBRARY}")
      set(PLATFORM_LINKFLAGS "${COMPILER_ASAN_LIBRARY} ${COMPILER_ASAN_LINKER_FLAGS}")
@@ -925,18 +886,6 @@ if(NOT CMAKE_BUILD_TYPE MATCHES "Release")
  endif()
 endif()

-# Test SIMD support, before platform includes to determine if sse2neon is needed.
-if(WITH_CPU_SIMD)
-  set(COMPILER_SSE_FLAG)
-  set(COMPILER_SSE2_FLAG)
-
-  # Test Neon first since macOS Arm can compile and run x86-64 SSE binaries.
-  TEST_NEON_SUPPORT()
-  if(NOT SUPPORT_NEON_BUILD)
-    TEST_SSE_SUPPORT(COMPILER_SSE_FLAG COMPILER_SSE2_FLAG)
-  endif()
-endif()
-
 # ----------------------------------------------------------------------------
 # Main Platform Checks
 #
@@ -992,49 +941,22 @@ if(WITH_INTERNATIONAL)
  endif()
 endif()

-# Enable SIMD support if detected by TEST_SSE_SUPPORT() or TEST_NEON_SUPPORT().
-#
-# This is done globally, so that all modules can use it if available, and
-# because these are used in headers used by many modules.
-if(WITH_CPU_SIMD)
-  if(SUPPORT_NEON_BUILD)
-    # Neon
-    if(SSE2NEON_FOUND)
-      blender_include_dirs_sys("${SSE2NEON_INCLUDE_DIRS}")
-      add_definitions(-DWITH_SSE2NEON)
-    endif()
-  else()
-    # SSE
-    if(SUPPORT_SSE_BUILD)
-      string(PREPEND PLATFORM_CFLAGS "${COMPILER_SSE_FLAG} ")
-      add_definitions(-D__SSE__ -D__MMX__)
-    endif()
-    if(SUPPORT_SSE2_BUILD)
-      string(APPEND PLATFORM_CFLAGS " ${COMPILER_SSE2_FLAG}")
-      add_definitions(-D__SSE2__)
-      if(NOT SUPPORT_SSE_BUILD) # don't double up
-        add_definitions(-D__MMX__)
-      endif()
-    endif()
-  endif()
+# See TEST_SSE_SUPPORT() for how this is defined.

-  # Print instructions used
-  if(SUPPORT_NEON_BUILD)
-    if(SSE2NEON_FOUND)
-      message(STATUS "Neon SIMD instructions enabled")
-    else()
-      message(STATUS "Neon SIMD instructions detected but unused, requires sse2neon")
-    endif()
-  elseif(SUPPORT_SSE2_BUILD)
-    message(STATUS "SSE2 SIMD instructions enabled")
-  elseif(SUPPORT_SSE_BUILD)
-    message(STATUS "SSE SIMD instructions enabled")
-  else()
-    message(STATUS "No SIMD instructions detected")
-  endif()
-else()
-  message(STATUS "SIMD instructions disabled")
+# Do it globally, SSE2 is required for quite some time now.
+# Doing it now allows to use SSE/SSE2 in inline headers.
+if(SUPPORT_SSE_BUILD)
+  string(PREPEND PLATFORM_CFLAGS "${COMPILER_SSE_FLAG} ")
+  add_definitions(-D__SSE__ -D__MMX__)
 endif()
+if(SUPPORT_SSE2_BUILD)
+  string(APPEND PLATFORM_CFLAGS " ${COMPILER_SSE2_FLAG}")
+  add_definitions(-D__SSE2__)
+  if(NOT SUPPORT_SSE_BUILD) # don't double up
+    add_definitions(-D__MMX__)
+  endif()
+endif()
+

 # set the endian define
 if(MSVC)
@@ -1080,9 +1002,6 @@ if(WITH_OPENVDB)
    list(APPEND OPENVDB_DEFINITIONS -DOPENVDB_3_ABI_COMPATIBLE)
  endif()

-  # OpenVDB headers use deprecated TBB headers, silence warning.
-  list(APPEND OPENVDB_DEFINITIONS -DTBB_SUPPRESS_DEPRECATED_MESSAGES=1)
-
  list(APPEND OPENVDB_INCLUDE_DIRS
    ${BOOST_INCLUDE_DIR}
    ${TBB_INCLUDE_DIRS}
@@ -1245,8 +1164,6 @@ if(WITH_OPENMP)
    if(NOT WITH_OPENMP_STATIC)
      string(APPEND CMAKE_C_FLAGS " ${OpenMP_C_FLAGS}")
      string(APPEND CMAKE_CXX_FLAGS " ${OpenMP_CXX_FLAGS}")
-      string(APPEND CMAKE_EXE_LINKER_FLAGS " ${OpenMP_LINKER_FLAGS}")
-      string(APPEND CMAKE_MODULE_LINKER_FLAGS " ${OpenMP_LINKER_FLAGS}")
    else()
      # Typically avoid adding flags as defines but we can't
      # pass OpenMP flags to the linker for static builds, meaning
@@ -1257,7 +1174,6 @@ if(WITH_OPENMP)
      find_library_static(OpenMP_LIBRARIES gomp ${CMAKE_CXX_IMPLICIT_LINK_DIRECTORIES})
    endif()
  else()
-    message(STATUS "OpenMP not found, disabling WITH_OPENMP")
    set(WITH_OPENMP OFF)
  endif()

@@ -1333,7 +1249,6 @@ list(APPEND GL_DEFINITIONS -DGLEW_NO_GLU)
 if(WITH_BULLET AND WITH_SYSTEM_BULLET)
  find_package(Bullet)
  if(NOT BULLET_FOUND)
-    message(STATUS "Bullet not found, disabling WITH_BULLET")
    set(WITH_BULLET OFF)
  endif()
 else()
@@ -1502,7 +1417,6 @@ if(CMAKE_COMPILER_IS_GNUCC)
  # gcc 4.2 gives annoying warnings on every file with this
  if(NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "4.3")
    ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNINITIALIZED -Wuninitialized)
-    ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_UNINITIALIZED -Wuninitialized)
  endif()

  # versions before gcc4.6 give many BLI_math warnings
@@ -1540,7 +1454,6 @@ if(CMAKE_COMPILER_IS_GNUCC)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_UNDEF -Wundef)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_FORMAT_SIGN -Wformat-signedness)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_RESTRICT -Wrestrict)
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_SUGGEST_OVERRIDE  -Wno-suggest-override)

  # gcc 4.2 gives annoying warnings on every file with this
  if(NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "4.3")
@@ -1568,13 +1481,11 @@ if(CMAKE_COMPILER_IS_GNUCC)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_FORMAT                  -Wno-format)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_SWITCH                  -Wno-switch)
  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_VARIABLE         -Wno-unused-variable)
-  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_VARIABLE         -Wno-uninitialized)

  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_CLASS_MEMACCESS     -Wno-class-memaccess)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_COMMENT             -Wno-comment)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_TYPEDEFS     -Wno-unused-local-typedefs)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_VARIABLE     -Wno-unused-variable)
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_VARIABLE     -Wno-uninitialized)

  if(CMAKE_COMPILER_IS_GNUCC AND (NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "7.0"))
    ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_IMPLICIT_FALLTHROUGH    -Wno-implicit-fallthrough)
@@ -1598,17 +1509,12 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
  ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNUSED_PARAMETER -Wunused-parameter)

  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_ALL -Wall)
-  # Using C++20 features while having C++17 as the project language isn't allowed by MSVC.
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_CXX20_DESIGNATOR -Wc++20-designator)
-
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_AUTOLOGICAL_COMPARE -Wno-tautological-compare)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_UNKNOWN_PRAGMAS     -Wno-unknown-pragmas)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_CHAR_SUBSCRIPTS     -Wno-char-subscripts)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_OVERLOADED_VIRTUAL  -Wno-overloaded-virtual)  # we get a lot of these, if its a problem a dev needs to look into it.
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_SIGN_COMPARE        -Wno-sign-compare)
  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_INVALID_OFFSETOF    -Wno-invalid-offsetof)
-  # Apple Clang (tested on version 12) doesn't support this flag while LLVM Clang 11 does.
-  ADD_CHECK_CXX_COMPILER_FLAG(CXX_WARNINGS CXX_WARN_NO_SUGGEST_OVERRIDE    -Wno-suggest-override)

  # gives too many unfixable warnings
  # ADD_CHECK_C_COMPILER_FLAG(C_WARNINGS C_WARN_UNUSED_MACROS      -Wunused-macros)
@@ -1709,31 +1615,38 @@ if(WITH_PYTHON)

  if(WIN32 OR APPLE)
    # Windows and macOS have this bundled with Python libraries.
-  elseif((WITH_PYTHON_INSTALL AND WITH_PYTHON_INSTALL_NUMPY) OR WITH_PYTHON_NUMPY)
+  elseif((WITH_PYTHON_INSTALL AND WITH_PYTHON_INSTALL_NUMPY) OR (WITH_AUDASPACE AND NOT WITH_SYSTEM_AUDASPACE))
    if(("${PYTHON_NUMPY_PATH}" STREQUAL "") OR (${PYTHON_NUMPY_PATH} MATCHES NOTFOUND))
-      find_python_package(numpy "core/include")
+      find_python_package(numpy)
+      unset(PYTHON_NUMPY_INCLUDE_DIRS CACHE)
+      set(PYTHON_NUMPY_INCLUDE_DIRS ${PYTHON_NUMPY_PATH}/numpy/core/include CACHE PATH "Path to the include directory of the numpy module")
+      mark_as_advanced(PYTHON_NUMPY_INCLUDE_DIRS)
    endif()
  endif()

  if(WIN32 OR APPLE)
    # pass, we have this in lib/python/site-packages
  elseif(WITH_PYTHON_INSTALL_REQUESTS)
-    find_python_package(requests "")
+    find_python_package(requests)
  endif()
 endif()

-# Select C++17 as the standard for C++ projects.
-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 extentions.
-set(CMAKE_CXX_EXTENSIONS OFF)
-
-# Make MSVC properly report the value of the __cplusplus preprocessor macro
-# Available MSVC 15.7 (1914) and up, without this it reports 199711L regardless
-# of the C++ standard chosen above.
-if(MSVC AND MSVC_VERSION GREATER 1913)
-  string(APPEND CMAKE_CXX_FLAGS " /Zc:__cplusplus")
+if(MSVC)
+  string(APPEND CMAKE_CXX_FLAGS " /std:c++17")
+  # Make MSVC properly report the value of the __cplusplus preprocessor macro
+  # Available MSVC 15.7 (1914) and up, without this it reports 199711L regardless
+  # of the C++ standard chosen above
+  if(MSVC_VERSION GREATER 1913)
+    string(APPEND CMAKE_CXX_FLAGS " /Zc:__cplusplus")
+  endif()
+elseif(
+  CMAKE_COMPILER_IS_GNUCC OR
+  CMAKE_C_COMPILER_ID MATCHES "Clang" OR
+  CMAKE_C_COMPILER_ID MATCHES "Intel"
+)
+  string(APPEND CMAKE_CXX_FLAGS " -std=c++17")
+else()
+  message(FATAL_ERROR "Unknown compiler ${CMAKE_C_COMPILER_ID}, can't enable C++17 build")
 endif()

 # Visual Studio has all standards it supports available by default
@@ -1837,20 +1750,8 @@ if(WITH_BLENDER)
  # internal and external library information first, for test linking
  add_subdirectory(source)
 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)
-    endif()
-    add_subdirectory(extern/glog)
-  endif()
  if(WITH_CUDA_DYNLOAD)
    add_subdirectory(extern/cuew)
  endif()
@@ -1859,10 +1760,6 @@ elseif(WITH_CYCLES_STANDALONE)
  endif()
 endif()

-#-----------------------------------------------------------------------------
-# Testing
-add_subdirectory(tests)
-
 #-----------------------------------------------------------------------------
 # Blender Application
 if(WITH_BLENDER)
@@ -1870,6 +1767,11 @@ if(WITH_BLENDER)
 endif()


+#-----------------------------------------------------------------------------
+# Testing
+add_subdirectory(tests)
+
+
 #-----------------------------------------------------------------------------
 # Define 'heavy' submodules (for Ninja builder when using pools).
 setup_heavy_lib_pool()
@@ -1919,23 +1821,18 @@ if(FIRST_RUN)
  info_cfg_text("Build Options:")
  info_cfg_option(WITH_ALEMBIC)
  info_cfg_option(WITH_BULLET)
-  info_cfg_option(WITH_CLANG)
  info_cfg_option(WITH_CYCLES)
  info_cfg_option(WITH_FFTW3)
  info_cfg_option(WITH_FREESTYLE)
  info_cfg_option(WITH_GMP)
-  info_cfg_option(WITH_HARU)
  info_cfg_option(WITH_IK_ITASC)
  info_cfg_option(WITH_IK_SOLVER)
  info_cfg_option(WITH_INPUT_NDOF)
-  info_cfg_option(WITH_INPUT_IME)
  info_cfg_option(WITH_INTERNATIONAL)
  info_cfg_option(WITH_OPENCOLLADA)
  info_cfg_option(WITH_OPENCOLORIO)
  info_cfg_option(WITH_OPENIMAGEDENOISE)
  info_cfg_option(WITH_OPENVDB)
-  info_cfg_option(WITH_POTRACE)
-  info_cfg_option(WITH_PUGIXML)
  info_cfg_option(WITH_QUADRIFLOW)
  info_cfg_option(WITH_TBB)
  info_cfg_option(WITH_USD)
@@ -1968,15 +1865,11 @@ if(FIRST_RUN)
  info_cfg_option(WITH_CODEC_AVI)
  info_cfg_option(WITH_CODEC_FFMPEG)
  info_cfg_option(WITH_CODEC_SNDFILE)
-  info_cfg_option(WITH_COREAUDIO)
  info_cfg_option(WITH_JACK)
  info_cfg_option(WITH_JACK_DYNLOAD)
  info_cfg_option(WITH_OPENAL)
-  info_cfg_option(WITH_PULSEAUDIO)
-  info_cfg_option(WITH_PULSEAUDIO_DYNLOAD)
  info_cfg_option(WITH_SDL)
  info_cfg_option(WITH_SDL_DYNLOAD)
-  info_cfg_option(WITH_WASAPI)

  info_cfg_text("Compression:")
  info_cfg_option(WITH_LZMA)
--- a/94
+++ b/94
@@ -26,31 +26,25 @@

 define HELP_TEXT

-Blender Convenience Targets
+Convenience Targets
   Provided for building Blender, (multiple at once can be used).

   * debug:         Build a debug binary.
   * full:          Enable all supported dependencies & options.
   * lite:          Disable non essential features for a smaller binary and faster build.
-   * release:       Complete build with all options enabled including CUDA and Optix, matching the releases on blender.org
+   * release        Complete build with all options enabled including CUDA and Optix, matching the releases on blender.org
   * headless:      Build without an interface (renderfarm or server automation).
   * cycles:        Build Cycles standalone only, without Blender.
   * bpy:           Build as a python module which can be loaded from python directly.
+   * deps:          Build library dependencies (intended only for platform maintainers).
+
   * developer:     Enable faster builds, error checking and tests, recommended for developers.
+   * config:        Run cmake configuration tool to set build options.
   * ninja:         Use ninja build tool for faster builds.
-   * ccache:        Use ccache for faster rebuilds.

   Note: passing the argument 'BUILD_DIR=path' when calling make will override the default build dir.
   Note: passing the argument 'BUILD_CMAKE_ARGS=args' lets you add cmake arguments.

-Other Convenience Targets
-   Provided for other building operations.
-
-   * config:        Run cmake configuration tool to set build options.
-   * deps:          Build library dependencies (intended only for platform maintainers).
-
-                    The 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
   Generate project files for development environments.
@@ -63,7 +57,7 @@ Package Targets

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

 Testing Targets
   Not associated with building Blender.
@@ -90,15 +84,12 @@ Static Source Code Checking
   * check_descriptions:    Check for duplicate/invalid descriptions.

 Spell Checkers
-   This runs the spell checker from the developer tools repositor.

   * check_spelling_c:      Check for spelling errors (C/C++ only),
   * check_spelling_osl:    Check for spelling errors (OSL only).
   * check_spelling_py:     Check for spelling errors (Python only).

-   Note: an additional word-list is maintained at: 'source/tools/check_source/check_spelling_c_config.py'
-
-   Note: that spell checkers can take a 'CHECK_SPELLING_CACHE' filepath argument,
+   Note that spell checkers can take a 'CHECK_SPELLING_CACHE' filepath argument,
   so re-running does not need to re-check unchanged files.

   Example:
@@ -128,16 +119,10 @@ Utilities
   * source_archive:
     Create a compressed archive of the source code.

-   * source_archive_complete:
-     Create a compressed archive of the source code and all the libraries of dependencies.
-
   * update:
-     Updates git and all submodules and svn.
+     updates git and all submodules

-   * update_code:
-     Updates git and all submodules but not svn.
-
-   * format:
+   * format
     Format source code using clang (uses PATHS if passed in). For example::

        make format PATHS="source/blender/blenlib source/blender/blenkernel"
@@ -167,7 +152,7 @@ endef

 # This makefile is not meant for Windows
 ifeq ($(OS),Windows_NT)
-	$(error On Windows, use "cmd //c make.bat" instead of "make")
+    $(error On Windows, use "cmd //c make.bat" instead of "make")
 endif

 # System Vars
@@ -197,13 +182,8 @@ endif
 ifndef DEPS_INSTALL_DIR
 	DEPS_INSTALL_DIR:=$(shell dirname "$(BLENDER_DIR)")/lib/$(OS_NCASE)

-	# Add processor type to directory name, except for darwin x86_64
-	# which by convention does not have it.
-	ifeq ($(OS_NCASE),darwin)
-		ifneq ($(CPU),x86_64)
-			DEPS_INSTALL_DIR:=$(DEPS_INSTALL_DIR)_$(CPU)
-		endif
-	else
+	ifneq ($(OS_NCASE),darwin)
+		# Add processor type to directory name
 		DEPS_INSTALL_DIR:=$(DEPS_INSTALL_DIR)_$(CPU)
 	endif
 endif
@@ -217,7 +197,7 @@ endif
 # in libraries, or python 2 for running make update to get it.
 ifeq ($(OS_NCASE),darwin)
 	ifeq (, $(shell command -v $(PYTHON)))
-		PYTHON:=$(DEPS_INSTALL_DIR)/python/bin/python3.7m
+		PYTHON:=../lib/darwin/python/bin/python3.7m
 		ifeq (, $(shell command -v $(PYTHON)))
 			PYTHON:=python
 		endif
@@ -261,10 +241,6 @@ ifneq "$(findstring developer, $(MAKECMDGOALS))" ""
 	CMAKE_CONFIG_ARGS:=-C"$(BLENDER_DIR)/build_files/cmake/config/blender_developer.cmake" $(CMAKE_CONFIG_ARGS)
 endif

-ifneq "$(findstring ccache, $(MAKECMDGOALS))" ""
-	CMAKE_CONFIG_ARGS:=-DWITH_COMPILER_CCACHE=YES $(CMAKE_CONFIG_ARGS)
-endif
-
 # -----------------------------------------------------------------------------
 # build tool

@@ -364,7 +340,6 @@ headless: all
 bpy: all
 developer: all
 ninja: all
-ccache: all

 # -----------------------------------------------------------------------------
 # Build dependencies
@@ -379,7 +354,7 @@ deps: .FORCE

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

 	@echo
 	@echo Building dependencies ...
@@ -456,8 +431,7 @@ project_eclipse: .FORCE
 check_cppcheck: .FORCE
 	$(CMAKE_CONFIG)
 	cd "$(BUILD_DIR)" ; \
-	$(PYTHON) \
-	    "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_cppcheck.py" 2> \
+	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_cppcheck.py" 2> \
 	    "$(BLENDER_DIR)/check_cppcheck.txt"
 	@echo "written: check_cppcheck.txt"

@@ -481,9 +455,6 @@ check_smatch: .FORCE
 	cd "$(BUILD_DIR)" ; \
 	$(PYTHON) "$(BLENDER_DIR)/build_files/cmake/cmake_static_check_smatch.py"

-check_mypy: .FORCE
-	$(PYTHON) "$(BLENDER_DIR)/source/tools/check_source/check_mypy.py"
-
 check_spelling_py: .FORCE
 	cd "$(BUILD_DIR)" ; \
 	PYTHONIOENCODING=utf_8 $(PYTHON) \
@@ -516,24 +487,14 @@ check_descriptions: .FORCE
 #

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

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

 icons_geom: .FORCE
 	BLENDER_BIN=$(BLENDER_BIN) \
@@ -542,12 +503,9 @@ icons_geom: .FORCE
 update: .FORCE
 	$(PYTHON) ./build_files/utils/make_update.py

-update_code: .FORCE
-	$(PYTHON) ./build_files/utils/make_update.py --no-libraries
-
 format: .FORCE
 	PATH="../lib/${OS_NCASE}_${CPU}/llvm/bin/:../lib/${OS_NCASE}_centos7_${CPU}/llvm/bin/:../lib/${OS_NCASE}/llvm/bin/:$(PATH)" \
-	    $(PYTHON) source/tools/utils_maintenance/clang_format_paths.py $(PATHS)
+		$(PYTHON) source/tools/utils_maintenance/clang_format_paths.py $(PATHS)


 # -----------------------------------------------------------------------------
@@ -556,10 +514,9 @@ format: .FORCE

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

@@ -568,9 +525,8 @@ doc_doxy: .FORCE
 	@echo "docs written into: '$(BLENDER_DIR)/doc/doxygen/html/index.html'"

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

 doc_man: .FORCE
--- a/build_files/build_environment/CMakeLists.txt
+++ b/build_files/build_environment/CMakeLists.txt
@@ -31,7 +31,6 @@
 #
 # MAC OS X USAGE:
 #   Install with homebrew: brew install autoconf automake bison cmake libtool pkg-config yasm
-#   Additional requirements for macOS arm64: brew install flex
 #   Run "make deps" from main Blender directory
 #
 # LINUX USAGE:
@@ -47,7 +46,6 @@ include(ExternalProject)
 include(cmake/check_software.cmake)
 include(cmake/options.cmake)
 include(cmake/versions.cmake)
-include(cmake/download.cmake)

 if(ENABLE_MINGW64)
  include(cmake/setup_mingw64.cmake)
@@ -56,7 +54,6 @@ else()
 endif()

 include(cmake/zlib.cmake)
-include(cmake/zstd.cmake)
 include(cmake/openal.cmake)
 include(cmake/png.cmake)
 include(cmake/jpeg.cmake)
@@ -73,7 +70,9 @@ include(cmake/cuew.cmake)
 include(cmake/opensubdiv.cmake)
 include(cmake/sdl.cmake)
 include(cmake/opencollada.cmake)
+include(cmake/opencolorio.cmake)
 include(cmake/llvm.cmake)
+include(cmake/clang.cmake)
 if(APPLE)
  include(cmake/openmp.cmake)
 endif()
@@ -82,50 +81,45 @@ if(UNIX)
 endif()
 include(cmake/openimageio.cmake)
 include(cmake/tiff.cmake)
-if(WIN32)
-  include(cmake/flexbison.cmake)
-elseif(UNIX AND NOT APPLE)
-  include(cmake/flex.cmake)
-endif()
+include(cmake/flexbison.cmake)
 include(cmake/osl.cmake)
 include(cmake/tbb.cmake)
 include(cmake/openvdb.cmake)
 include(cmake/nanovdb.cmake)
 include(cmake/python.cmake)
-option(USE_PIP_NUMPY "Install NumPy using pip wheel instead of building from source" OFF)
-if(APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
-  set(USE_PIP_NUMPY ON)
-else()
-  include(cmake/numpy.cmake)
-endif()
 include(cmake/python_site_packages.cmake)
 include(cmake/package_python.cmake)
+include(cmake/numpy.cmake)
 include(cmake/usd.cmake)
 include(cmake/potrace.cmake)
-include(cmake/haru.cmake)
 # Boost needs to be included after python.cmake due to the PYTHON_BINARY variable being needed.
 include(cmake/boost.cmake)
-include(cmake/pugixml.cmake)
-include(cmake/ispc.cmake)
-include(cmake/openimagedenoise.cmake)
-include(cmake/embree.cmake)
+if(UNIX)
+  # Rely on PugiXML compiled with OpenImageIO
+else()
+  include(cmake/pugixml.cmake)
+endif()
+if((NOT APPLE) OR ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
+  include(cmake/ispc.cmake)
+  include(cmake/openimagedenoise.cmake)
+  include(cmake/embree.cmake)
+endif()
 if(NOT APPLE)
  include(cmake/xr_openxr.cmake)
 endif()

-# OpenColorIO and dependencies.
-include(cmake/expat.cmake)
-include(cmake/yamlcpp.cmake)
-include(cmake/opencolorio.cmake)
-
-if(BLENDER_PLATFORM_ARM)
-  include(cmake/sse2neon.cmake)
-endif()
-
 if(WITH_WEBP)
  include(cmake/webp.cmake)
 endif()

+if(WIN32)
+  # OCIO deps
+  include(cmake/tinyxml.cmake)
+  include(cmake/yamlcpp.cmake)
+  # LCMS is an OCIO dep, but only if you build the apps, leaving it here for convenience
+  # include(cmake/lcms.cmake)
+endif()
+
 if(NOT WIN32 OR ENABLE_MINGW64)
  include(cmake/gmp.cmake)
  include(cmake/openjpeg.cmake)
@@ -169,7 +163,6 @@ endif()
 if(UNIX AND NOT APPLE)
  include(cmake/libglu.cmake)
  include(cmake/mesa.cmake)
-  include(cmake/wayland_protocols.cmake)
 endif()

 include(cmake/harvest.cmake)
--- a/build_files/build_environment/cmake/alembic.cmake
+++ b/build_files/build_environment/cmake/alembic.cmake
@@ -19,6 +19,16 @@
 set(ALEMBIC_EXTRA_ARGS
  -DBUILDSTATIC=ON
  -DLINKSTATIC=ON
+  -DALEMBIC_LIB_USES_BOOST=ON
+  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+  -DBoost_USE_MULTITHREADED=ON
+  -DUSE_STATIC_BOOST=On
+  -DBoost_USE_STATIC_LIBS=ON
+  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBoost_DEBUG=ON
+  -DBOOST_ROOT=${LIBDIR}/boost
+  -DBoost_NO_SYSTEM_PATHS=ON
+  -DBoost_NO_BOOST_CMAKE=ON
  -DILMBASE_ROOT=${LIBDIR}/openexr
  -DALEMBIC_ILMBASE_INCLUDE_DIRECTORY=${LIBDIR}/openexr/include/OpenEXR
  -DALEMBIC_ILMBASE_HALF_LIB=${LIBDIR}/openexr/lib/${LIBPREFIX}Half${OPENEXR_VERSION_POSTFIX}${LIBEXT}
@@ -44,9 +54,9 @@ set(ALEMBIC_EXTRA_ARGS
 )

 ExternalProject_Add(external_alembic
-  URL file://${PACKAGE_DIR}/${ALEMBIC_FILE}
+  URL ${ALEMBIC_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ALEMBIC_HASH_TYPE}=${ALEMBIC_HASH}
+  URL_HASH MD5=${ALEMBIC_MD5}
  PREFIX ${BUILD_DIR}/alembic
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/alembic -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ALEMBIC_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/alembic
@@ -71,6 +81,7 @@ endif()

 add_dependencies(
  external_alembic
+  external_boost
  external_zlib
  external_openexr
 )
--- a/build_files/build_environment/cmake/blosc.cmake
+++ b/build_files/build_environment/cmake/blosc.cmake
@@ -29,16 +29,16 @@ set(BLOSC_EXTRA_ARGS
  -DCMAKE_POSITION_INDEPENDENT_CODE=ON
 )

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

 ExternalProject_Add(external_blosc
-  URL file://${PACKAGE_DIR}/${BLOSC_FILE}
+  URL ${BLOSC_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BLOSC_HASH_TYPE}=${BLOSC_HASH}
+  URL_HASH MD5=${BLOSC_HASH}
  PREFIX ${BUILD_DIR}/blosc
  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/blosc/src/external_blosc < ${PATCH_DIR}/blosc.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/boost.cmake
+++ b/build_files/build_environment/cmake/boost.cmake
@@ -18,23 +18,18 @@

 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_COMMAND bjam)
  set(BOOST_BUILD_OPTIONS runtime-link=shared )
  set(BOOST_HARVEST_CMD   ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/lib/ ${HARVEST_TARGET}/boost/lib/ )
  if(BUILD_MODE STREQUAL Release)
    set(BOOST_HARVEST_CMD ${BOOST_HARVEST_CMD} && ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/include/boost-${BOOST_VERSION_NODOTS_SHORT}/ ${HARVEST_TARGET}/boost/include/)
  endif()
+
 elseif(APPLE)
  set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
  set(BOOST_BUILD_COMMAND ./b2)
@@ -91,14 +86,14 @@ set(BOOST_OPTIONS
 string(TOLOWER ${BUILD_MODE} BOOST_BUILD_TYPE)

 ExternalProject_Add(external_boost
-  URL file://${PACKAGE_DIR}/${BOOST_FILE}
+  URL ${BOOST_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BOOST_HASH_TYPE}=${BOOST_HASH}
+  URL_HASH MD5=${BOOST_HASH}
  PREFIX ${BUILD_DIR}/boost
  UPDATE_COMMAND  ""
  PATCH_COMMAND ${BOOST_PATCH_COMMAND}
  CONFIGURE_COMMAND ${BOOST_CONFIGURE_COMMAND}
-  BUILD_COMMAND ${BOOST_BUILD_COMMAND} ${BOOST_BUILD_OPTIONS} -j${MAKE_THREADS} architecture=${BOOST_ARCHITECTURE} address-model=${BOOST_ADDRESS_MODEL} link=static threading=multi ${BOOST_OPTIONS}    --prefix=${LIBDIR}/boost install
+  BUILD_COMMAND ${BOOST_BUILD_COMMAND} ${BOOST_BUILD_OPTIONS} -j${MAKE_THREADS} architecture=x86 address-model=${BOOST_ADDRESS_MODEL} link=static threading=multi ${BOOST_OPTIONS}    --prefix=${LIBDIR}/boost install
  BUILD_IN_SOURCE 1
  INSTALL_COMMAND "${BOOST_HARVEST_CMD}"
 )
--- a/build_files/build_environment/cmake/bzip2.cmake
+++ b/build_files/build_environment/cmake/bzip2.cmake
@@ -30,9 +30,9 @@ else()
 endif()

 ExternalProject_Add(external_bzip2
-  URL file://${PACKAGE_DIR}/${BZIP2_FILE}
+  URL ${BZIP2_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${BZIP2_HASH_TYPE}=${BZIP2_HASH}
+  URL_HASH SHA256=${BZIP2_HASH}
  PREFIX ${BUILD_DIR}/bzip2
  CONFIGURE_COMMAND echo .
  BUILD_COMMAND ${BZIP2_CONFIGURE_ENV} && cd ${BUILD_DIR}/bzip2/src/external_bzip2/ && make CFLAGS=${BZIP2_CFLAGS} LDFLAGS=${BZIP2_LDFLAGS} -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/check_software.cmake
+++ b/build_files/build_environment/cmake/check_software.cmake
@@ -33,16 +33,6 @@ if(UNIX)
    yasm
  )

-  if(NOT APPLE)
-    set(_required_software
-      ${_required_software}
-
-      # Needed for Mesa.
-      meson
-      ninja
-    )
-  endif()
-
  foreach(_software ${_required_software})
    find_program(_software_find NAMES ${_software})
    if(NOT _software_find)
@@ -52,13 +42,7 @@ if(UNIX)
  endforeach()

  if(APPLE)
-    # Homebrew has different default locations for ARM and Intel macOS.
-    if("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "arm64")
-      set(HOMEBREW_LOCATION "/opt/homebrew")
-    else()
-      set(HOMEBREW_LOCATION "/usr/local")
-    endif()
-    if(NOT EXISTS "${HOMEBREW_LOCATION}/opt/bison/bin/bison")
+    if(NOT EXISTS "/usr/local/opt/bison/bin/bison")
      string(APPEND _software_missing " bison")
    endif()
  endif()
@@ -70,14 +54,11 @@ if(UNIX)
      "  ${_software_missing}\n"
      "\n"
      "On Debian and Ubuntu:\n"
-      "  apt install autoconf automake libtool yasm tcl ninja-build meson python3-mako\n"
+      "  apt install autoconf automake libtool yasm tcl\n"
      "\n"
-      "On macOS Intel (with homebrew):\n"
+      "On macOS (with homebrew):\n"
      "  brew install autoconf automake bison libtool pkg-config yasm\n"
      "\n"
-      "On macOS ARM (with homebrew):\n"
-      "  brew install autoconf automake bison flex libtool pkg-config yasm\n"
-      "\n"
      "Other platforms:\n"
      "  Install equivalent packages.\n")
    message(FATAL_ERROR "Install missing software before continuing")
--- a/build_files/build_environment/cmake/clang.cmake
+++ b/build_files/build_environment/cmake/clang.cmake
@@ -0,0 +1,74 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CLANG_EXTRA_ARGS
+  -DCLANG_PATH_TO_LLVM_SOURCE=${BUILD_DIR}/ll/src/ll
+  -DCLANG_PATH_TO_LLVM_BUILD=${LIBDIR}/llvm
+  -DLLVM_USE_CRT_RELEASE=MD
+  -DLLVM_USE_CRT_DEBUG=MDd
+  -DLLVM_CONFIG=${LIBDIR}/llvm/bin/llvm-config
+)
+
+if(WIN32)
+  set(CLANG_GENERATOR "Ninja")
+else()
+  set(CLANG_GENERATOR "Unix Makefiles")
+endif()
+
+if(APPLE)
+  set(CLANG_EXTRA_ARGS ${CLANG_EXTRA_ARGS}
+    -DLIBXML2_LIBRARY=${LIBDIR}/xml2/lib/libxml2.a
+  )
+endif()
+
+ExternalProject_Add(external_clang
+  URL ${CLANG_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${CLANG_HASH}
+  PREFIX ${BUILD_DIR}/clang
+  CMAKE_GENERATOR ${CLANG_GENERATOR}
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clang ${DEFAULT_CMAKE_FLAGS} ${CLANG_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/clang
+)
+
+if(MSVC)
+  if(BUILD_MODE STREQUAL Release)
+    set(CLANG_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/ ${HARVEST_TARGET}/llvm/)
+  else()
+    set(CLANG_HARVEST_COMMAND
+      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/lib/ ${HARVEST_TARGET}/llvm/debug/lib/
+    )
+  endif()
+  ExternalProject_Add_Step(external_clang after_install
+    COMMAND ${CLANG_HARVEST_COMMAND}
+    DEPENDEES mkdir update patch download configure build install
+  )
+endif()
+
+add_dependencies(
+  external_clang
+  ll
+)
+
+# We currently do not build libxml2 on Windows.
+if(NOT WIN32)
+  add_dependencies(
+    external_clang
+    external_xml2
+  )
+endif()
--- a/build_files/build_environment/cmake/clew.cmake
+++ b/build_files/build_environment/cmake/clew.cmake
@@ -19,9 +19,9 @@
 set(CLEW_EXTRA_ARGS)

 ExternalProject_Add(external_clew
-  URL file://${PACKAGE_DIR}/${CLEW_FILE}
+  URL ${CLEW_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${CLEW_HASH_TYPE}=${CLEW_HASH}
+  URL_HASH MD5=${CLEW_HASH}
  PREFIX ${BUILD_DIR}/clew
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CLEW_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/clew
--- a/build_files/build_environment/cmake/cuew.cmake
+++ b/build_files/build_environment/cmake/cuew.cmake
@@ -19,9 +19,9 @@
 set(CUEW_EXTRA_ARGS)

 ExternalProject_Add(external_cuew
-  URL file://${PACKAGE_DIR}/${CUEW_FILE}
+  URL ${CUEW_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${CUEW_HASH_TYPE}=${CUEW_HASH}
+  URL_HASH MD5=${CUEW_HASH}
  PREFIX ${BUILD_DIR}/cuew
  PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/cuew/src/external_cuew < ${PATCH_DIR}/cuew.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/cuew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CUEW_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/download.cmake
+++ b/build_files/build_environment/cmake/download.cmake
@@ -1,96 +0,0 @@
-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})
-  else()
-    set(TARGET_URI  https://svn.blender.org/svnroot/bf-blender/trunk/lib/packages/${TARGET_FILE})
-  endif()
-  set(TARGET_FILE ${PACKAGE_DIR}/${TARGET_FILE})
-  message("Checking source : ${dep} (${TARGET_FILE})")
-  if(NOT EXISTS ${TARGET_FILE})
-    message("Checking source : ${dep} - source not found downloading from ${TARGET_URI}")
-    file(DOWNLOAD ${TARGET_URI} ${TARGET_FILE}
-         TIMEOUT 1800  # seconds
-         EXPECTED_HASH ${TARGET_HASH_TYPE}=${TARGET_HASH}
-         TLS_VERIFY ON
-         SHOW_PROGRESS
-        )
-  endif()
-endfunction(download_source)
-
-download_source(ZLIB)
-download_source(OPENAL)
-download_source(PNG)
-download_source(JPEG)
-download_source(BOOST)
-download_source(BLOSC)
-download_source(PTHREADS)
-download_source(OPENEXR)
-download_source(FREETYPE)
-download_source(GLEW)
-download_source(FREEGLUT)
-download_source(ALEMBIC)
-download_source(GLFW)
-download_source(CLEW)
-download_source(GLFW)
-download_source(CUEW)
-download_source(OPENSUBDIV)
-download_source(SDL)
-download_source(OPENCOLLADA)
-download_source(OPENCOLORIO)
-download_source(LLVM)
-download_source(OPENMP)
-download_source(OPENIMAGEIO)
-download_source(TIFF)
-download_source(OSL)
-download_source(PYTHON)
-download_source(TBB)
-download_source(OPENVDB)
-download_source(NANOVDB)
-download_source(NUMPY)
-download_source(LAME)
-download_source(OGG)
-download_source(VORBIS)
-download_source(THEORA)
-download_source(FLAC)
-download_source(VPX)
-download_source(OPUS)
-download_source(X264)
-download_source(XVIDCORE)
-download_source(OPENJPEG)
-download_source(FFMPEG)
-download_source(FFTW)
-download_source(ICONV)
-download_source(SNDFILE)
-if(WITH_WEBP)
-  download_source(WEBP)
-endif()
-download_source(SPNAV)
-download_source(JEMALLOC)
-download_source(XML2)
-download_source(TINYXML)
-download_source(YAMLCPP)
-download_source(EXPAT)
-download_source(PUGIXML)
-download_source(FLEXBISON)
-download_source(BZIP2)
-download_source(FFI)
-download_source(LZMA)
-download_source(SSL)
-download_source(SQLITE)
-download_source(EMBREE)
-download_source(USD)
-download_source(OIDN)
-download_source(LIBGLU)
-download_source(MESA)
-download_source(NASM)
-download_source(XR_OPENXR_SDK)
-download_source(WL_PROTOCOLS)
-download_source(ISPC)
-download_source(GMP)
-download_source(POTRACE)
-download_source(HARU)
-download_source(ZSTD)
-download_source(FLEX)
--- a/build_files/build_environment/cmake/embree.cmake
+++ b/build_files/build_environment/cmake/embree.cmake
@@ -29,7 +29,6 @@ set(EMBREE_EXTRA_ARGS
  -DEMBREE_MAX_ISA=AVX2
  -DEMBREE_TASKING_SYSTEM=TBB
  -DEMBREE_TBB_ROOT=${LIBDIR}/tbb
-  -DTBB_ROOT=${LIBDIR}/tbb
  -DTBB_STATIC_LIB=${TBB_STATIC_LIBRARY}
 )

@@ -43,36 +42,19 @@ endif()

 if(WIN32)
  set(EMBREE_BUILD_DIR ${BUILD_MODE}/)
-  if(BUILD_MODE STREQUAL Debug)
-    list(APPEND EMBREE_EXTRA_ARGS
-     -DEMBREE_TBBMALLOC_LIBRARY_NAME=tbbmalloc_debug
-     -DEMBREE_TBB_LIBRARY_NAME=tbb_debug
-    )
-  endif()
 else()
  set(EMBREE_BUILD_DIR)
 endif()

-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()
+ExternalProject_Add(external_embree
+  URL ${EMBREE_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${EMBREE_HASH}
+  PREFIX ${BUILD_DIR}/embree
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/embree/src/external_embree < ${PATCH_DIR}/embree.diff
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/embree ${DEFAULT_CMAKE_FLAGS} ${EMBREE_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/embree
+)

 add_dependencies(
  external_embree
--- a/build_files/build_environment/cmake/expat.cmake
+++ b/build_files/build_environment/cmake/expat.cmake
@@ -1,35 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(EXPAT_EXTRA_ARGS
-  -DEXPAT_BUILD_DOCS=OFF
-  -DEXPAT_BUILD_EXAMPLES=OFF
-  -DEXPAT_BUILD_TESTS=OFF
-  -DEXPAT_BUILD_TOOLS=OFF
-  -DEXPAT_SHARED_LIBS=OFF
-)
-
-ExternalProject_Add(external_expat
-  URL file://${PACKAGE_DIR}/${EXPAT_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${EXPAT_HASH_TYPE}=${EXPAT_HASH}
-  PREFIX ${BUILD_DIR}/expat
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/expat ${DEFAULT_CMAKE_FLAGS} ${EXPAT_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/expat
-  SOURCE_SUBDIR expat
-)
--- a/build_files/build_environment/cmake/ffi.cmake
+++ b/build_files/build_environment/cmake/ffi.cmake
@@ -17,8 +17,8 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ffi
-  URL file://${PACKAGE_DIR}/${FFI_FILE}
-  URL_HASH ${FFI_HASH_TYPE}=${FFI_HASH}
+  URL ${FFI_URI}
+  URL_HASH SHA256=${FFI_HASH}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  PREFIX ${BUILD_DIR}/ffi
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ffi/src/external_ffi/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ffi
--- a/build_files/build_environment/cmake/ffmpeg.cmake
+++ b/build_files/build_environment/cmake/ffmpeg.cmake
@@ -30,7 +30,6 @@ if(WIN32)
    --enable-w32threads
    --disable-pthreads
    --enable-libopenjpeg
-    --disable-mediafoundation
  )
  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
    set(FFMPEG_EXTRA_FLAGS
@@ -61,9 +60,9 @@ elseif(UNIX)
 endif()

 ExternalProject_Add(external_ffmpeg
-  URL file://${PACKAGE_DIR}/${FFMPEG_FILE}
+  URL ${FFMPEG_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FFMPEG_HASH_TYPE}=${FFMPEG_HASH}
+  URL_HASH MD5=${FFMPEG_HASH}
  # OpenJpeg is compiled with pthread support on Linux, which is all fine and is what we
  # want for maximum runtime performance, but due to static nature of that library we
  # need to force ffmpeg to link against pthread, otherwise test program used by autoconf
--- a/build_files/build_environment/cmake/fftw.cmake
+++ b/build_files/build_environment/cmake/fftw.cmake
@@ -28,9 +28,9 @@ else()
 endif()

 ExternalProject_Add(external_fftw3
-  URL file://${PACKAGE_DIR}/${FFTW_FILE}
+  URL ${FFTW_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FFTW_HASH_TYPE}=${FFTW_HASH}
+  URL_HASH MD5=${FFTW_HASH}
  PREFIX ${BUILD_DIR}/fftw3
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && ${CONFIGURE_COMMAND} ${FFTW_EXTRA_ARGS} --prefix=${mingw_LIBDIR}/fftw3
  PATCH_COMMAND ${FFTW3_PATCH_COMMAND}
--- a/build_files/build_environment/cmake/flac.cmake
+++ b/build_files/build_environment/cmake/flac.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_flac
-  URL file://${PACKAGE_DIR}/${FLAC_FILE}
+  URL ${FLAC_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FLAC_HASH_TYPE}=${FLAC_HASH}
+  URL_HASH SHA256=${FLAC_HASH}
  PREFIX ${BUILD_DIR}/flac
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flac --disable-shared --enable-static
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/flex.cmake
+++ b/build_files/build_environment/cmake/flex.cmake
@@ -1,28 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-ExternalProject_Add(external_flex
-  URL file://${PACKAGE_DIR}/${FLEX_FILE}
-  URL_HASH ${FLEX_HASH_TYPE}=${FLEX_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/flex
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flex
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && make -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flex/src/external_flex/ && make install
-  INSTALL_DIR ${LIBDIR}/flex
-)
--- a/build_files/build_environment/cmake/flexbison.cmake
+++ b/build_files/build_environment/cmake/flexbison.cmake
@@ -19,9 +19,9 @@
 set(FLEXBISON_EXTRA_ARGS)

 ExternalProject_Add(external_flexbison
-  URL file://${PACKAGE_DIR}/${FLEXBISON_FILE}
+  URL ${FLEXBISON_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FLEXBISON_HASH_TYPE}=${FLEXBISON_HASH}
+  URL_HASH MD5=${FLEXBISON_HASH}
  PREFIX ${BUILD_DIR}/flexbison
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/flexbison ${DEFAULT_CMAKE_FLAGS} ${FLEXBISON_EXTRA_ARGS}
  CONFIGURE_COMMAND echo .
--- a/build_files/build_environment/cmake/freeglut.cmake
+++ b/build_files/build_environment/cmake/freeglut.cmake
@@ -24,9 +24,9 @@ if(WIN32)
    )

    ExternalProject_Add(external_freeglut
-      URL file://${PACKAGE_DIR}/${FREEGLUT_FILE}
+      URL ${FREEGLUT_URI}
      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      URL_HASH ${FREEGLUT_HASH_TYPE}=${FREEGLUT_HASH}
+      URL_HASH MD5=${FREEGLUT_HASH}
      PREFIX ${BUILD_DIR}/freeglut
      CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freeglut ${DEFAULT_C_FLAGS} ${DEFAULT_CXX_FLAGS} ${FREEGLUT_EXTRA_ARGS}
      INSTALL_DIR ${LIBDIR}/freeglut
--- a/build_files/build_environment/cmake/freetype.cmake
+++ b/build_files/build_environment/cmake/freetype.cmake
@@ -28,9 +28,9 @@ set(FREETYPE_EXTRA_ARGS
  -DCMAKE_DISABLE_FIND_PACKAGE_BrotliDec=TRUE)

 ExternalProject_Add(external_freetype
-  URL file://${PACKAGE_DIR}/${FREETYPE_FILE}
+  URL ${FREETYPE_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${FREETYPE_HASH_TYPE}=${FREETYPE_HASH}
+  URL_HASH MD5=${FREETYPE_HASH}
  PREFIX ${BUILD_DIR}/freetype
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freetype ${DEFAULT_CMAKE_FLAGS} ${FREETYPE_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/freetype
--- a/build_files/build_environment/cmake/glew.cmake
+++ b/build_files/build_environment/cmake/glew.cmake
@@ -22,9 +22,9 @@ set(GLEW_EXTRA_ARGS
 )

 ExternalProject_Add(external_glew
-  URL file://${PACKAGE_DIR}/${GLEW_FILE}
+  URL ${GLEW_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${GLEW_HASH_TYPE}=${GLEW_HASH}
+  URL_HASH MD5=${GLEW_HASH}
  PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_glew.txt ${BUILD_DIR}/glew/src/external_glew/CMakeLists.txt
  PREFIX ${BUILD_DIR}/glew
  CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glew ${DEFAULT_CMAKE_FLAGS} ${GLEW_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/glfw.cmake
+++ b/build_files/build_environment/cmake/glfw.cmake
@@ -19,9 +19,9 @@
 set(GLFW_EXTRA_ARGS)

 ExternalProject_Add(external_glfw
-  URL file://${PACKAGE_DIR}/${GLFW_FILE}
+  URL ${GLFW_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${GLFW_HASH_TYPE}=${GLFW_HASH}
+  URL_HASH MD5=${GLFW_HASH}
  PREFIX ${BUILD_DIR}/glfw
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glfw -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${GLFW_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/glfw
--- a/build_files/build_environment/cmake/gmp.cmake
+++ b/build_files/build_environment/cmake/gmp.cmake
@@ -25,12 +25,19 @@ else()
  set(GMP_OPTIONS --enable-static --disable-shared )
 endif()

-if(APPLE AND NOT BLENDER_PLATFORM_ARM)
-  set(GMP_OPTIONS
-    ${GMP_OPTIONS}
-    --with-pic
-  )
-elseif(UNIX AND NOT APPLE)
+if(APPLE)
+  if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
+    set(GMP_OPTIONS
+      ${GMP_OPTIONS}
+      --disable-assembly
+    )
+  else()
+    set(GMP_OPTIONS
+      ${GMP_OPTIONS}
+      --with-pic
+    )
+  endif()
+elseif(UNIX)
  set(GMP_OPTIONS
    ${GMP_OPTIONS}
    --with-pic
@@ -38,17 +45,10 @@ 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}
+  URL ${GMP_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${GMP_HASH_TYPE}=${GMP_HASH}
+  URL_HASH MD5=${GMP_HASH}
  PREFIX ${BUILD_DIR}/gmp
  CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/gmp ${GMP_OPTIONS} ${GMP_EXTRA_ARGS}
  BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/gmp/src/external_gmp/ && make -j${MAKE_THREADS}
@@ -84,9 +84,9 @@ if(WIN32)
  # given the C++ ABI between MSVC and mingw is not compatible, we need to build the bindings
  # with MSVC, while GMP can only be build with mingw.
  ExternalProject_Add(external_gmpxx
-    URL file://${PACKAGE_DIR}/${GMP_FILE}
+    URL ${GMP_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${GMP_HASH_TYPE}=${GMP_HASH}
+    URL_HASH MD5=${GMP_HASH}
    PREFIX ${BUILD_DIR}/gmpxx
    PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_gmpxx.txt ${BUILD_DIR}/gmpxx/src/external_gmpxx/CMakeLists.txt &&
                          ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/config_gmpxx.h ${BUILD_DIR}/gmpxx/src/external_gmpxx/config.h
--- a/build_files/build_environment/cmake/haru.cmake
+++ b/build_files/build_environment/cmake/haru.cmake
@@ -1,46 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(HARU_EXTRA_ARGS
-  -DLIBHPDF_SHARED=OFF
-  -DLIBHPDF_STATIC=ON
-  -DLIBHPDF_EXAMPLES=OFF
-  -DLIBHPDF_ENABLE_EXCEPTIONS=ON
-)
-
-ExternalProject_Add(external_haru
-  URL file://${PACKAGE_DIR}/${HARU_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${HARU_HASH_TYPE}=${HARU_HASH}
-  PREFIX ${BUILD_DIR}/haru
-  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/haru/src/external_haru < ${PATCH_DIR}/haru.diff
-  CMAKE_ARGS
-    -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/haru
-    ${DEFAULT_CMAKE_FLAGS} ${HARU_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/haru
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_haru after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/haru/include ${HARVEST_TARGET}/haru/include
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/haru/lib/libhpdfs.lib ${HARVEST_TARGET}/haru/lib/libhpdfs.lib
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/cmake/harvest.cmake
+++ b/build_files/build_environment/cmake/harvest.cmake
@@ -97,23 +97,15 @@ harvest(jemalloc/lib jemalloc/lib "*.a")
 harvest(jpg/include jpeg/include "*.h")
 harvest(jpg/lib jpeg/lib "libjpeg.a")
 harvest(lame/lib ffmpeg/lib "*.a")
-harvest(llvm/bin llvm/bin "clang-format")
-if(BUILD_CLANG_TOOLS)
-  harvest(llvm/bin llvm/bin "clang-tidy")
-  harvest(llvm/share/clang llvm/share "run-clang-tidy.py")
-endif()
+harvest(clang/bin llvm/bin "clang-format")
+harvest(clang/include llvm/include "*")
 harvest(llvm/include llvm/include "*")
 harvest(llvm/bin llvm/bin "llvm-config")
 harvest(llvm/lib llvm/lib "libLLVM*.a")
-harvest(llvm/lib llvm/lib "libclang*.a")
-harvest(llvm/lib/clang llvm/lib/clang "*.h")
 if(APPLE)
  harvest(openmp/lib openmp/lib "*")
  harvest(openmp/include openmp/include "*.h")
 endif()
-if(BLENDER_PLATFORM_ARM)
-  harvest(sse2neon sse2neon "*.h")
-endif()
 harvest(ogg/lib ffmpeg/lib "*.a")
 harvest(openal/include openal/include "*.h")
 if(UNIX AND NOT APPLE)
@@ -127,8 +119,6 @@ if(UNIX AND NOT APPLE)

  harvest(xml2/include xml2/include "*.h")
  harvest(xml2/lib xml2/lib "*.a")
-
-  harvest(wayland-protocols/share/wayland-protocols wayland-protocols/share/wayland-protocols/ "*.xml")
 else()
  harvest(blosc/lib openvdb/lib "*.a")
  harvest(xml2/lib opencollada/lib "*.a")
@@ -145,10 +135,12 @@ harvest(openimageio/bin openimageio/bin "maketx")
 harvest(openimageio/bin openimageio/bin "oiiotool")
 harvest(openimageio/include openimageio/include "*")
 harvest(openimageio/lib openimageio/lib "*.a")
-harvest(openimagedenoise/include openimagedenoise/include "*")
-harvest(openimagedenoise/lib openimagedenoise/lib "*.a")
-harvest(embree/include embree/include "*.h")
-harvest(embree/lib embree/lib "*.a")
+if((NOT APPLE) OR ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
+  harvest(openimagedenoise/include openimagedenoise/include "*")
+  harvest(openimagedenoise/lib openimagedenoise/lib "*.a")
+  harvest(embree/include embree/include "*.h")
+  harvest(embree/lib embree/lib "*.a")
+endif()
 harvest(openjpeg/include/openjpeg-2.3 openjpeg/include "*.h")
 harvest(openjpeg/lib openjpeg/lib "*.a")
 harvest(opensubdiv/include opensubdiv/include "*.h")
@@ -161,12 +153,10 @@ harvest(xr_openxr_sdk/lib xr_openxr_sdk/lib "*.a")
 harvest(osl/bin osl/bin "oslc")
 harvest(osl/include osl/include "*.h")
 harvest(osl/lib osl/lib "*.a")
-harvest(osl/share/OSL/shaders osl/share/OSL/shaders "*.h")
+harvest(osl/shaders osl/shaders "*.h")
 harvest(png/include png/include "*.h")
 harvest(png/lib png/lib "*.a")
-harvest(pugixml/include pugixml/include "*.hpp")
-harvest(pugixml/lib pugixml/lib "*.a")
-harvest(python/bin python/bin "python${PYTHON_SHORT_VERSION}")
+harvest(python/bin python/bin "python${PYTHON_SHORT_VERSION}m")
 harvest(python/include python/include "*h")
 harvest(python/lib python/lib "*")
 harvest(sdl/include/SDL2 sdl/include "*.h")
@@ -191,14 +181,10 @@ harvest(usd/lib/usd usd/lib/usd "*")
 harvest(usd/plugin usd/plugin "*")
 harvest(potrace/include potrace/include "*.h")
 harvest(potrace/lib potrace/lib "*.a")
-harvest(haru/include haru/include "*.h")
-harvest(haru/lib haru/lib "*.a")
-harvest(zstd/include zstd/include "*.h")
-harvest(zstd/lib zstd/lib "*.a")

 if(UNIX AND NOT APPLE)
  harvest(libglu/lib mesa/lib "*.so*")
-  harvest(mesa/lib64 mesa/lib "*.so*")
+  harvest(mesa/lib mesa/lib "*.so*")
 endif()

 endif()
--- a/build_files/build_environment/cmake/iconv.cmake
+++ b/build_files/build_environment/cmake/iconv.cmake
@@ -19,9 +19,9 @@
 set(ICONV_EXTRA_ARGS)

 ExternalProject_Add(external_iconv
-  URL file://${PACKAGE_DIR}/${ICONV_FILE}
+  URL ${ICONV_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ICONV_HASH_TYPE}=${ICONV_HASH}
+  URL_HASH MD5=${ICONV_HASH}
  PREFIX ${BUILD_DIR}/iconv
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/iconv
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/ispc.cmake
+++ b/build_files/build_environment/cmake/ispc.cmake
@@ -21,53 +21,41 @@ if(WIN32)
    -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe
    -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe
    -DM4_EXECUTABLE=${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/m4.exe
-    -DARM_ENABLED=Off
  )
 elseif(APPLE)
-  # Use bison and flex installed via Homebrew.
-  # The ones that come with Xcode toolset are too old.
-  if("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "arm64")
-    set(ISPC_EXTRA_ARGS_APPLE
-      -DBISON_EXECUTABLE=/opt/homebrew/opt/bison/bin/bison
-      -DFLEX_EXECUTABLE=/opt/homebrew/opt/flex/bin/flex
-      -DARM_ENABLED=On
-    )
-  else()
-    set(ISPC_EXTRA_ARGS_APPLE
-      -DBISON_EXECUTABLE=/usr/local/opt/bison/bin/bison
-      -DFLEX_EXECUTABLE=/usr/local/opt/flex/bin/flex
-      -DARM_ENABLED=Off
-    )
-  endif()
+  # Use bison installed via Homebrew.
+  # The one which comes which Xcode toolset is too old.
+  set(ISPC_EXTRA_ARGS_APPLE
+    -DBISON_EXECUTABLE=/usr/local/opt/bison/bin/bison
+  )
 elseif(UNIX)
  set(ISPC_EXTRA_ARGS_UNIX
-    -DCMAKE_C_COMPILER=${LIBDIR}/llvm/bin/clang
-    -DCMAKE_CXX_COMPILER=${LIBDIR}/llvm/bin/clang++
-    -DARM_ENABLED=Off
-    -DFLEX_EXECUTABLE=${LIBDIR}/flex/bin/flex
+    -DCMAKE_C_COMPILER=${LIBDIR}/clang/bin/clang
+    -DCMAKE_CXX_COMPILER=${LIBDIR}/clang/bin/clang++
  )
 endif()

 set(ISPC_EXTRA_ARGS
+    -DARM_ENABLED=Off
    -DISPC_NO_DUMPS=On
    -DISPC_INCLUDE_EXAMPLES=Off
    -DISPC_INCLUDE_TESTS=Off
    -DLLVM_ROOT=${LIBDIR}/llvm/lib/cmake/llvm
    -DLLVM_LIBRARY_DIR=${LIBDIR}/llvm/lib
-    -DCLANG_EXECUTABLE=${LIBDIR}/llvm/bin/clang
-    -DCLANGPP_EXECUTABLE=${LIBDIR}/llvm/bin/clang++
+    -DCLANG_EXECUTABLE=${LIBDIR}/clang/bin/clang
+    -DCLANGPP_EXECUTABLE=${LIBDIR}/clang/bin/clang++
    -DISPC_INCLUDE_TESTS=Off
-    -DCLANG_LIBRARY_DIR=${LIBDIR}/llvm/lib
-    -DCLANG_INCLUDE_DIRS=${LIBDIR}/llvm/include
+    -DCLANG_LIBRARY_DIR=${LIBDIR}/clang/lib
+    -DCLANG_INCLUDE_DIRS=${LIBDIR}/clang/include
    ${ISPC_EXTRA_ARGS_WIN}
    ${ISPC_EXTRA_ARGS_APPLE}
    ${ISPC_EXTRA_ARGS_UNIX}
 )

 ExternalProject_Add(external_ispc
-  URL file://${PACKAGE_DIR}/${ISPC_FILE}
+  URL ${ISPC_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ISPC_HASH_TYPE}=${ISPC_HASH}
+  URL_HASH MD5=${ISPC_HASH}
  PREFIX ${BUILD_DIR}/ispc
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/ispc/src/external_ispc < ${PATCH_DIR}/ispc.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ispc -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ISPC_EXTRA_ARGS} ${BUILD_DIR}/ispc/src/external_ispc
@@ -77,6 +65,7 @@ ExternalProject_Add(external_ispc
 add_dependencies(
  external_ispc
  ll
+  external_clang
 )

 if(WIN32)
@@ -84,9 +73,4 @@ if(WIN32)
    external_ispc
    external_flexbison
  )
-elseif(UNIX AND NOT APPLE)
-  add_dependencies(
-    external_ispc
-    external_flex
-  )
 endif()
--- a/build_files/build_environment/cmake/jemalloc.cmake
+++ b/build_files/build_environment/cmake/jemalloc.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_jemalloc
-  URL file://${PACKAGE_DIR}/${JEMALLOC_FILE}
+  URL ${JEMALLOC_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${JEMALLOC_HASH_TYPE}=${JEMALLOC_HASH}
+  URL_HASH MD5=${JEMALLOC_HASH}
  PREFIX ${BUILD_DIR}/jemalloc
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jemalloc --disable-shared --enable-static --with-pic
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/jpeg.cmake
+++ b/build_files/build_environment/cmake/jpeg.cmake
@@ -21,9 +21,9 @@ if(WIN32)
  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}
+    URL ${JPEG_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${JPEG_HASH_TYPE}=${JPEG_HASH}
+    URL_HASH MD5=${JPEG_HASH}
    PREFIX ${BUILD_DIR}/jpg
    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
    INSTALL_DIR ${LIBDIR}/jpg
@@ -50,9 +50,9 @@ else(WIN32)
    -DCMAKE_INSTALL_LIBDIR=${LIBDIR}/jpg/lib)

  ExternalProject_Add(external_jpeg
-    URL file://${PACKAGE_DIR}/${JPEG_FILE}
+    URL ${JPEG_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${JPEG_HASH_TYPE}=${JPEG_HASH}
+    URL_HASH MD5=${JPEG_HASH}
    PREFIX ${BUILD_DIR}/jpg
    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
    INSTALL_DIR ${LIBDIR}/jpg
--- a/build_files/build_environment/cmake/lame.cmake
+++ b/build_files/build_environment/cmake/lame.cmake
@@ -24,9 +24,9 @@ if(MSVC)
 endif()

 ExternalProject_Add(external_lame
-  URL file://${PACKAGE_DIR}/${LAME_FILE}
+  URL ${LAME_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LAME_HASH_TYPE}=${LAME_HASH}
+  URL_HASH MD5=${LAME_HASH}
  PREFIX ${BUILD_DIR}/lame
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lame --disable-shared --enable-static ${LAME_EXTRA_ARGS}
    --enable-export=full
--- a/build_files/build_environment/cmake/sse2neon.cmake
+++ b/build_files/build_environment/cmake/sse2neon.cmake
@@ -16,13 +16,16 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-ExternalProject_Add(external_sse2neon
-  GIT_REPOSITORY  ${SSE2NEON_GIT}
-  GIT_TAG ${SSE2NEON_GIT_HASH}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  PREFIX ${BUILD_DIR}/sse2neon
-  CONFIGURE_COMMAND echo sse2neon - Nothing to configure
-  BUILD_COMMAND echo sse2neon - nothing to build
-  INSTALL_COMMAND mkdir -p ${LIBDIR}/sse2neon && cp ${BUILD_DIR}/sse2neon/src/external_sse2neon/sse2neon.h ${LIBDIR}/sse2neon
-  INSTALL_DIR ${LIBDIR}/sse2neon
+set(LCMS_EXTRA_ARGS
+)
+
+ExternalProject_Add(external_lcms
+  URL ${LCMS_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${LCMS_HASH}
+  PREFIX ${BUILD_DIR}/lcms
+  # Patch taken from ocio.
+  PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_lcms.txt ${BUILD_DIR}/lcms/src/external_lcms/CMakeLists.txt
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/lcms ${DEFAULT_CMAKE_FLAGS} ${LCMS_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/lcms
 )
--- a/build_files/build_environment/cmake/libglu.cmake
+++ b/build_files/build_environment/cmake/libglu.cmake
@@ -27,9 +27,9 @@ set(LIBGLU_EXTRA_FLAGS
 )

 ExternalProject_Add(external_libglu
-  URL file://${PACKAGE_DIR}/${LIBGLU_FILE}
+  URL ${LIBGLU_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LIBGLU_HASH_TYPE}=${LIBGLU_HASH}
+  URL_HASH MD5=${LIBGLU_HASH}
  PREFIX ${BUILD_DIR}/libglu
  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
    cd ${BUILD_DIR}/libglu/src/external_libglu/ &&
--- a/build_files/build_environment/cmake/llvm.cmake
+++ b/build_files/build_environment/cmake/llvm.cmake
@@ -16,21 +16,12 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-if(BLENDER_PLATFORM_ARM)
-  set(LLVM_TARGETS AArch64$<SEMICOLON>ARM)
+if(APPLE AND "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
+  set(LLVM_TARGETS AArch64)
 else()
  set(LLVM_TARGETS X86)
 endif()

-if(APPLE)
-  set(LLVM_XML2_ARGS
-    -DLIBXML2_LIBRARY=${LIBDIR}/xml2/lib/libxml2.a
-  )
-  set(LLVM_BUILD_CLANG_TOOLS_EXTRA ^^clang-tools-extra)
-  set(BUILD_CLANG_TOOLS ON)
-endif()
-
-
 set(LLVM_EXTRA_ARGS
  -DLLVM_USE_CRT_RELEASE=MD
  -DLLVM_USE_CRT_DEBUG=MDd
@@ -40,8 +31,6 @@ set(LLVM_EXTRA_ARGS
  -DLLVM_ENABLE_TERMINFO=OFF
  -DLLVM_BUILD_LLVM_C_DYLIB=OFF
  -DLLVM_ENABLE_UNWIND_TABLES=OFF
-  -DLLVM_ENABLE_PROJECTS=clang${LLVM_BUILD_CLANG_TOOLS_EXTRA}
-  ${LLVM_XML2_ARGS}
 )

 if(WIN32)
@@ -52,13 +41,11 @@ endif()

 # short project name due to long filename issues on windows
 ExternalProject_Add(ll
-  URL file://${PACKAGE_DIR}/${LLVM_FILE}
+  URL ${LLVM_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LLVM_HASH_TYPE}=${LLVM_HASH}
+  URL_HASH MD5=${LLVM_HASH}
  CMAKE_GENERATOR ${LLVM_GENERATOR}
-  LIST_SEPARATOR ^^
  PREFIX ${BUILD_DIR}/ll
-  SOURCE_SUBDIR llvm
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/ll/src/ll < ${PATCH_DIR}/llvm.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/llvm ${DEFAULT_CMAKE_FLAGS} ${LLVM_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/llvm
@@ -66,11 +53,7 @@ ExternalProject_Add(ll

 if(MSVC)
  if(BUILD_MODE STREQUAL Release)
-    set(LLVM_HARVEST_COMMAND
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib ${HARVEST_TARGET}/llvm/lib &&
-      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/include ${HARVEST_TARGET}/llvm/include &&
-      ${CMAKE_COMMAND} -E copy ${LIBDIR}/llvm/bin/clang-format.exe ${HARVEST_TARGET}/llvm/bin/clang-format.exe
-    )
+    set(LLVM_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/ ${HARVEST_TARGET}/llvm/ )
  else()
    set(LLVM_HARVEST_COMMAND
      ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib/ ${HARVEST_TARGET}/llvm/debug/lib/ &&
@@ -82,11 +65,3 @@ if(MSVC)
    DEPENDEES mkdir update patch download configure build install
  )
 endif()
-
-# We currently do not build libxml2 on Windows.
-if(APPLE)
-  add_dependencies(
-    ll
-    external_xml2
-  )
-endif()
--- a/build_files/build_environment/cmake/lzma.cmake
+++ b/build_files/build_environment/cmake/lzma.cmake
@@ -19,9 +19,9 @@
 set(LZMA_PATCH_CMD echo .)

 ExternalProject_Add(external_lzma
-  URL file://${PACKAGE_DIR}/${LZMA_FILE}
+  URL ${LZMA_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${LZMA_HASH_TYPE}=${LZMA_HASH}
+  URL_HASH SHA256=${LZMA_HASH}
  PREFIX ${BUILD_DIR}/lzma
  PATCH_COMMAND ${LZMA_PATCH_CMD}
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lzma/src/external_lzma/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lzma
--- a/build_files/build_environment/cmake/mesa.cmake
+++ b/build_files/build_environment/cmake/mesa.cmake
@@ -20,48 +20,31 @@ set(MESA_CFLAGS "-static-libgcc")
 set(MESA_CXXFLAGS "-static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a")
 set(MESA_LDFLAGS "-L${LIBDIR}/zlib/lib -pthread -static-libgcc -static-libstdc++ -Bstatic -lstdc++ -Bdynamic -l:libstdc++.a -l:libz_pic.a")

-# The 'native-file', used for overrides with the meson build system.
-# meson does not provide a way to do this using command line arguments.
-#
-# Note that we can't output to "${BUILD_DIR}/mesa/src/external_mesa" as
-# it doesn't exist when CMake first executes.
-file(WRITE ${BUILD_DIR}/mesa/tmp/native-file.ini "\
-[binaries]
-llvm-config = '${LIBDIR}/llvm/bin/llvm-config'"
-)
-
 set(MESA_EXTRA_FLAGS
-  -Dbuildtype=release
-  -Dc_args=${MESA_CFLAGS}
-  -Dcpp_args=${MESA_CXXFLAGS}
-  -Dc_link_args=${MESA_LDFLAGS}
-  -Dcpp_link_args=${MESA_LDFLAGS}
-  -Dglx=gallium-xlib
-  -Dgallium-drivers=swrast
-  -Ddri-drivers=
-  -Dvulkan-drivers=
-  -Dgbm=disabled
-  -Degl=disabled
-  -Dgles1=disabled
-  -Dgles2=disabled
-  -Dshared-llvm=disabled
-  # Without this, the build fails when: `wayland-scanner` is not found.
-  # At some point we will likely want to support Wayland.
-  # Disable for now since it's not officially supported.
-  -Dplatforms=x11
-  --native-file ${BUILD_DIR}/mesa/tmp/native-file.ini
+  CFLAGS=${MESA_CFLAGS}
+  CXXFLAGS=${MESA_CXXFLAGS}
+  LDFLAGS=${MESA_LDFLAGS}
+  --enable-glx=gallium-xlib
+  --with-gallium-drivers=swrast
+  --disable-dri
+  --disable-gbm
+  --disable-egl
+  --disable-gles1
+  --disable-gles2
+  --disable-llvm-shared-libs
+  --with-llvm-prefix=${LIBDIR}/llvm
 )

 ExternalProject_Add(external_mesa
-  URL file://${PACKAGE_DIR}/${MESA_FILE}
+  URL ${MESA_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${MESA_HASH_TYPE}=${MESA_HASH}
+  URL_HASH MD5=${MESA_HASH}
  PREFIX ${BUILD_DIR}/mesa
  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
    cd ${BUILD_DIR}/mesa/src/external_mesa/ &&
-    meson ${BUILD_DIR}/mesa/src/external_mesa-build --prefix=${LIBDIR}/mesa ${MESA_EXTRA_FLAGS}
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa-build && ninja -j${MAKE_THREADS}
-  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa-build && ninja install
+    ${CONFIGURE_COMMAND_NO_TARGET} --prefix=${LIBDIR}/mesa ${MESA_EXTRA_FLAGS}
+  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa/ && make -j${MAKE_THREADS}
+  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/mesa/src/external_mesa/ && make install
  INSTALL_DIR ${LIBDIR}/mesa
 )

--- a/build_files/build_environment/cmake/nanovdb.cmake
+++ b/build_files/build_environment/cmake/nanovdb.cmake
@@ -37,9 +37,9 @@ set(NANOVDB_EXTRA_ARGS
 )

 ExternalProject_Add(nanovdb
-  URL file://${PACKAGE_DIR}/${NANOVDB_FILE}
+  URL ${NANOVDB_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${NANOVDB_HASH_TYPE}=${NANOVDB_HASH}
+  URL_HASH MD5=${NANOVDB_HASH}
  PREFIX ${BUILD_DIR}/nanovdb
  SOURCE_SUBDIR nanovdb
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/nanovdb ${DEFAULT_CMAKE_FLAGS} ${NANOVDB_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/nasm.cmake
+++ b/build_files/build_environment/cmake/nasm.cmake
@@ -17,22 +17,13 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_nasm
-  URL file://${PACKAGE_DIR}/${NASM_FILE}
+  URL ${NASM_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${NASM_HASH_TYPE}=${NASM_HASH}
+  URL_HASH SHA256=${NASM_HASH}
  PREFIX ${BUILD_DIR}/nasm
  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/nasm/src/external_nasm < ${PATCH_DIR}/nasm.diff
-  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && ./autogen.sh && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/nasm
-  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make -j${MAKE_THREADS} && make manpages
+  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/nasm
+  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make -j${MAKE_THREADS}
  INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/nasm/src/external_nasm/ && make install
  INSTALL_DIR ${LIBDIR}/nasm
 )
-
-if(UNIX)
-  # `touch nasm.1 ndisasm.1` helps to create the manual pages files, even when
-  # local `asciidoc` and `xmlto` packages are not installed.
-  ExternalProject_Add_Step(external_nasm after_configure
-    COMMAND  ${CMAKE_COMMAND} -E touch ${BUILD_DIR}/nasm/src/external_nasm/nasm.1 ${BUILD_DIR}/nasm/src/external_nasm/ndisasm.1
-    DEPENDEES configure
-  )
-endif()
--- a/build_files/build_environment/cmake/numpy.cmake
+++ b/build_files/build_environment/cmake/numpy.cmake
@@ -32,9 +32,9 @@ endif()
 set(NUMPY_POSTFIX)

 ExternalProject_Add(external_numpy
-  URL file://${PACKAGE_DIR}/${NUMPY_FILE}
+  URL ${NUMPY_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${NUMPY_HASH_TYPE}=${NUMPY_HASH}
+  URL_HASH MD5=${NUMPY_HASH}
  PREFIX ${BUILD_DIR}/numpy
  PATCH_COMMAND ${NUMPY_PATCH}
  CONFIGURE_COMMAND ""
@@ -47,5 +47,4 @@ ExternalProject_Add(external_numpy
 add_dependencies(
  external_numpy
  external_python
-  external_python_site_packages
 )
--- a/build_files/build_environment/cmake/ogg.cmake
+++ b/build_files/build_environment/cmake/ogg.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_ogg
-  URL file://${PACKAGE_DIR}/${OGG_FILE}
+  URL ${OGG_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OGG_HASH_TYPE}=${OGG_HASH}
+  URL_HASH SHA256=${OGG_HASH}
  PREFIX ${BUILD_DIR}/ogg
  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/ogg/src/external_ogg < ${PATCH_DIR}/ogg.diff
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ogg --disable-shared --enable-static
--- a/build_files/build_environment/cmake/openal.cmake
+++ b/build_files/build_environment/cmake/openal.cmake
@@ -46,9 +46,9 @@ if(BUILD_MODE STREQUAL Release)
  endif()

  ExternalProject_Add(external_openal
-    URL file://${PACKAGE_DIR}/${OPENAL_FILE}
+    URL ${OPENAL_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${OPENAL_HASH_TYPE}=${OPENAL_HASH}
+    URL_HASH MD5=${OPENAL_HASH}
    PREFIX ${BUILD_DIR}/openal
    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openal ${DEFAULT_CMAKE_FLAGS} ${OPENAL_EXTRA_ARGS}
    INSTALL_DIR ${LIBDIR}/openal
--- a/build_files/build_environment/cmake/opencollada.cmake
+++ b/build_files/build_environment/cmake/opencollada.cmake
@@ -23,9 +23,9 @@ if(UNIX)
 endif()

 ExternalProject_Add(external_opencollada
-  URL file://${PACKAGE_DIR}/${OPENCOLLADA_FILE}
+  URL ${OPENCOLLADA_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENCOLLADA_HASH_TYPE}=${OPENCOLLADA_HASH}
+  URL_HASH MD5=${OPENCOLLADA_HASH}
  PREFIX ${BUILD_DIR}/opencollada
  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencollada/src/external_opencollada < ${PATCH_DIR}/opencollada.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencollada ${DEFAULT_CMAKE_FLAGS} ${OPENCOLLADA_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/opencolorio.cmake
+++ b/build_files/build_environment/cmake/opencolorio.cmake
@@ -18,84 +18,102 @@

 set(OPENCOLORIO_EXTRA_ARGS
  -DOCIO_BUILD_APPS=OFF
-  -DOCIO_BUILD_PYTHON=OFF
+  -DOCIO_BUILD_PYGLUE=OFF
  -DOCIO_BUILD_NUKE=OFF
-  -DOCIO_BUILD_JAVA=OFF
-  -DBUILD_SHARED_LIBS=OFF
+  -DOCIO_USE_BOOST_PTR=OFF
+  -DOCIO_BUILD_STATIC=ON
+  -DOCIO_BUILD_SHARED=OFF
+  -DOCIO_BUILD_TRUELIGHT=OFF
  -DOCIO_BUILD_DOCS=OFF
-  -DOCIO_BUILD_TESTS=OFF
-  -DOCIO_BUILD_GPU_TESTS=OFF
-  -DOCIO_USE_SSE=ON
-
-  # 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
+  -DOCIO_BUILD_PYGLUE=OFF
+  -DOCIO_BUILD_JNIGLUE=OFF
+  -DOCIO_STATIC_JNIGLUE=OFF
 )

-if(BLENDER_PLATFORM_ARM)
+if(APPLE AND NOT("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64"))
  set(OPENCOLORIO_EXTRA_ARGS
-    ${OPENCOLORIO_EXTRA_ARGS}
-    -DOCIO_USE_SSE=OFF
+     ${OPENCOLORIO_EXTRA_ARGS}
+     -DOCIO_USE_SSE=OFF
  )
 endif()

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

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

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

 if(WIN32)
+  add_dependencies(
+    external_opencolorio
+    external_tinyxml
+    external_yamlcpp
+
+  )
  if(BUILD_MODE STREQUAL Release)
    ExternalProject_Add_Step(external_opencolorio after_install
      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/include ${HARVEST_TARGET}/opencolorio/include
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/lib ${HARVEST_TARGET}/opencolorio/lib
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencolorio/lib/static ${HARVEST_TARGET}/opencolorio/lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatMD.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/pystring.lib ${HARVEST_TARGET}/opencolorio/lib/pystring.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tinyxml/lib/tinyxml.lib ${HARVEST_TARGET}/opencolorio/lib/tinyxml.lib
      DEPENDEES install
    )
  endif()
  if(BUILD_MODE STREQUAL Debug)
    ExternalProject_Add_Step(external_opencolorio after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencolorio/lib/Opencolorio.lib ${HARVEST_TARGET}/opencolorio/lib/OpencolorIO_d.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/opencolorio/lib/static/Opencolorio.lib ${HARVEST_TARGET}/opencolorio/lib/OpencolorIO_d.lib
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/yamlcpp/lib/libyaml-cppmdd.lib ${HARVEST_TARGET}/opencolorio/lib/libyaml-cpp_d.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/expat/lib/libexpatdMD.lib ${HARVEST_TARGET}/opencolorio/lib/libexpatdMD.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
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tinyxml/lib/tinyxml.lib ${HARVEST_TARGET}/opencolorio/lib/tinyxml_d.lib
      DEPENDEES install
    )
  endif()
-else()
-    ExternalProject_Add_Step(external_opencolorio after_install
-      COMMAND cp ${LIBDIR}/yamlcpp/lib/libyaml-cpp.a ${LIBDIR}/opencolorio/lib/
-      COMMAND cp ${LIBDIR}/expat/lib/libexpat.a ${LIBDIR}/opencolorio/lib/
-      COMMAND cp ${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
@@ -42,9 +42,9 @@ set(OPENEXR_EXTRA_ARGS
 )

 ExternalProject_Add(external_openexr
-  URL file://${PACKAGE_DIR}/${OPENEXR_FILE}
+  URL ${OPENEXR_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENEXR_HASH_TYPE}=${OPENEXR_HASH}
+  URL_HASH MD5=${OPENEXR_HASH}
  PREFIX ${BUILD_DIR}/openexr
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openexr ${DEFAULT_CMAKE_FLAGS} ${OPENEXR_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/openexr
--- a/build_files/build_environment/cmake/openimagedenoise.cmake
+++ b/build_files/build_environment/cmake/openimagedenoise.cmake
@@ -41,9 +41,9 @@ else()
 endif()

 ExternalProject_Add(external_openimagedenoise
-  URL file://${PACKAGE_DIR}/${OIDN_FILE}
+  URL ${OIDN_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OIDN_HASH_TYPE}=${OIDN_HASH}
+  URL_HASH MD5=${OIDN_HASH}
  PREFIX ${BUILD_DIR}/openimagedenoise
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimagedenoise ${DEFAULT_CMAKE_FLAGS} ${OIDN_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/openimagedenoise
--- a/build_files/build_environment/cmake/openimageio.cmake
+++ b/build_files/build_environment/cmake/openimageio.cmake
@@ -68,6 +68,7 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
  -DBoost_NO_SYSTEM_PATHS=ON
  -DBoost_NO_BOOST_CMAKE=ON
+  -OIIO_BUILD_CPP11=ON
  -DUSE_LIBSQUISH=OFF
  -DUSE_QT5=OFF
  -DUSE_NUKE=OFF
@@ -111,17 +112,14 @@ set(OPENIMAGEIO_EXTRA_ARGS
  -DOPENEXR_IEX_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Iex${OPENEXR_VERSION_POSTFIX}${LIBEXT}
  -DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}
  -DSTOP_ON_WARNING=OFF
-  -DUSE_EXTERNAL_PUGIXML=ON
-  -DPUGIXML_LIBRARY=${LIBDIR}/pugixml/lib/${LIBPREFIX}pugixml${LIBEXT}
-  -DPUGIXML_INCLUDE_DIR=${LIBDIR}/pugixml/include/
  ${WEBP_FLAGS}
  ${OIIO_SIMD_FLAGS}
 )

 ExternalProject_Add(external_openimageio
-  URL file://${PACKAGE_DIR}/${OPENIMAGEIO_FILE}
+  URL ${OPENIMAGEIO_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENIMAGEIO_HASH_TYPE}=${OPENIMAGEIO_HASH}
+  URL_HASH MD5=${OPENIMAGEIO_HASH}
  PREFIX ${BUILD_DIR}/openimageio
  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimageio ${DEFAULT_CMAKE_FLAGS} ${OPENIMAGEIO_EXTRA_ARGS}
@@ -136,7 +134,6 @@ add_dependencies(
  external_jpeg
  external_boost
  external_tiff
-  external_pugixml
  external_openjpeg${OPENJPEG_POSTFIX}
  ${WEBP_DEP}
 )
--- a/build_files/build_environment/cmake/openjpeg.cmake
+++ b/build_files/build_environment/cmake/openjpeg.cmake
@@ -28,9 +28,9 @@ else()
 endif()

 ExternalProject_Add(external_openjpeg
-  URL file://${PACKAGE_DIR}/${OPENJPEG_FILE}
+  URL ${OPENJPEG_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENJPEG_HASH_TYPE}=${OPENJPEG_HASH}
+  URL_HASH SHA256=${OPENJPEG_HASH}
  PREFIX ${BUILD_DIR}/openjpeg
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF ${BUILD_DIR}/openjpeg/src/external_openjpeg
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make -j${MAKE_THREADS}
@@ -42,9 +42,9 @@ ExternalProject_Add(external_openjpeg
 if(MSVC)
  set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
  ExternalProject_Add(external_openjpeg_msvc
-    URL file://${PACKAGE_DIR}/${OPENJPEG_FILE}
+    URL ${OPENJPEG_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${OPENJPEG_HASH_TYPE}=${OPENJPEG_HASH}
+    URL_HASH SHA256=${OPENJPEG_HASH}
    PREFIX ${BUILD_DIR}/openjpeg_msvc
    CMAKE_ARGS ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg_msvc -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF
    INSTALL_DIR ${LIBDIR}/openjpeg_msvc
--- a/build_files/build_environment/cmake/openmp.cmake
+++ b/build_files/build_environment/cmake/openmp.cmake
@@ -16,24 +16,19 @@
 #
 # ***** END GPL LICENSE BLOCK *****

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

 ExternalProject_Add(external_openmp
-  URL file://${PACKAGE_DIR}/${OPENMP_FILE}
+  URL ${OPENMP_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENMP_HASH_TYPE}=${OPENMP_HASH}
+  URL_HASH MD5=${OPENMP_HASH}
  PREFIX ${BUILD_DIR}/openmp
-  PATCH_COMMAND ${OPENMP_PATCH_COMMAND}
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openmp/src/external_openmp < ${PATCH_DIR}/openmp.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openmp ${DEFAULT_CMAKE_FLAGS}
-  INSTALL_COMMAND cd ${BUILD_DIR}/openmp/src/external_openmp-build && install_name_tool -id @rpath/libomp.dylib runtime/src/libomp.dylib && make install
+  INSTALL_COMMAND cd ${BUILD_DIR}/openmp/src/external_openmp-build && install_name_tool -id @executable_path/../Resources/lib/libomp.dylib runtime/src/libomp.dylib && make install
  INSTALL_DIR ${LIBDIR}/openmp
 )

 add_dependencies(
  external_openmp
-  ll
+  external_clang
 )
--- a/build_files/build_environment/cmake/opensubdiv.cmake
+++ b/build_files/build_environment/cmake/opensubdiv.cmake
@@ -65,9 +65,9 @@ else()
 endif()

 ExternalProject_Add(external_opensubdiv
-  URL file://${PACKAGE_DIR}/${OPENSUBDIV_FILE}
+  URL ${OPENSUBDIV_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENSUBDIV_HASH_TYPE}=${OPENSUBDIV_HASH}
+  URL_HASH MD5=${OPENSUBDIV_HASH}
  PREFIX ${BUILD_DIR}/opensubdiv
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opensubdiv -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${OPENSUBDIV_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/opensubdiv
--- a/build_files/build_environment/cmake/openvdb.cmake
+++ b/build_files/build_environment/cmake/openvdb.cmake
@@ -54,8 +54,6 @@ set(OPENVDB_EXTRA_ARGS
  -DOPENVDB_CORE_STATIC=${OPENVDB_STATIC}
  -DOPENVDB_BUILD_BINARIES=Off
  -DCMAKE_DEBUG_POSTFIX=_d
-  -DILMBASE_USE_STATIC_LIBS=On
-  -DOPENEXR_USE_STATIC_LIBS=On
 )

 if(WIN32)
@@ -77,9 +75,9 @@ else()
 endif()

 ExternalProject_Add(openvdb
-  URL file://${PACKAGE_DIR}/${OPENVDB_FILE}
+  URL ${OPENVDB_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPENVDB_HASH_TYPE}=${OPENVDB_HASH}
+  URL_HASH MD5=${OPENVDB_HASH}
  PREFIX ${BUILD_DIR}/openvdb
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/openvdb/src/openvdb < ${PATCH_DIR}/openvdb.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openvdb ${DEFAULT_CMAKE_FLAGS} ${OPENVDB_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/options.cmake
+++ b/build_files/build_environment/cmake/options.cmake
@@ -21,8 +21,7 @@ if(WIN32)
 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")
+set(MAKE_THREADS 1 CACHE STRING "Number of threads to run make with")

 if(NOT BUILD_MODE)
  set(BUILD_MODE "Release")
@@ -36,19 +35,13 @@ else(BUILD_MODE STREQUAL "Debug")
  set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Release)
 endif()

-set(DOWNLOAD_DIR "${CMAKE_CURRENT_BINARY_DIR}/downloads" CACHE STRING "Path for downloaded files")
-# This path must be hard-coded like this, so that the GNUmakefile knows where it is and can pass it to make_source_archive.py:
-set(PACKAGE_DIR "${CMAKE_CURRENT_BINARY_DIR}/packages")
-option(PACKAGE_USE_UPSTREAM_SOURCES "Use soures upstream to download the package sources, when OFF the blender mirror will be used" ON)
-
+option(DOWNLOAD_DIR "Path for downloaded files" ${CMAKE_CURRENT_SOURCE_DIR}/downloads)
 file(TO_CMAKE_PATH ${DOWNLOAD_DIR} DOWNLOAD_DIR)
-file(TO_CMAKE_PATH ${PACKAGE_DIR} PACKAGE_DIR)
 set(PATCH_DIR ${CMAKE_CURRENT_SOURCE_DIR}/patches)
 set(BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/build)

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

@@ -137,10 +130,6 @@ else()
    endif()
    set(OSX_SYSROOT ${XCODE_DEV_PATH}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk)

-    if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
-      set(BLENDER_PLATFORM_ARM ON)
-    endif()
-
    set(PLATFORM_CFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -arch ${CMAKE_OSX_ARCHITECTURES}")
    set(PLATFORM_CXXFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -std=c++11 -stdlib=libc++ -arch ${CMAKE_OSX_ARCHITECTURES}")
    set(PLATFORM_LDFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -arch ${CMAKE_OSX_ARCHITECTURES}")
@@ -155,10 +144,6 @@ else()
      -DCMAKE_OSX_SYSROOT:PATH=${OSX_SYSROOT}
    )
  else()
-    if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64")
-      set(BLENDER_PLATFORM_ARM ON)
-    endif()
-
    set(PLATFORM_CFLAGS "-fPIC")
    set(PLATFORM_CXXFLAGS "-std=c++11 -fPIC")
    set(PLATFORM_LDFLAGS)
--- a/build_files/build_environment/cmake/opus.cmake
+++ b/build_files/build_environment/cmake/opus.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_opus
-  URL file://${PACKAGE_DIR}/${OPUS_FILE}
+  URL ${OPUS_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${OPUS_HASH_TYPE}=${OPUS_HASH}
+  URL_HASH SHA256=${OPUS_HASH}
  PREFIX ${BUILD_DIR}/opus
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/opus/src/external_opus/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/opus
    --disable-shared
--- a/build_files/build_environment/cmake/osl.cmake
+++ b/build_files/build_environment/cmake/osl.cmake
@@ -19,14 +19,22 @@
 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=${LIBDIR}/flexbison/win_bison.exe)
-  set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=sse2)
+  set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/libpng16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+    set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=0)
+  else()
+    set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=sse2)
+  endif()
+  SET(OSL_PLATFORM_FLAGS -DLINKSTATIC=ON)
 else()
  set(OSL_CMAKE_CXX_STANDARD_LIBRARIES)
  set(OSL_FLEX_BISON)
  set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf${OPENEXR_VERSION_POSTFIX}${LIBEXT}")
+  SET(OSL_PLATFORM_FLAGS)
 endif()

 set(OSL_ILMBASE_CUSTOM_LIBRARIES "${LIBDIR}/openexr/lib/Imath${OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/Half{OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/IlmThread${OPENEXR_VERSION_POSTFIX}.lib^^${LIBDIR}/openexr/lib/Iex${OPENEXR_VERSION_POSTFIX}.lib")
+set(OSL_LLVM_LIBRARY "${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAnalysis${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAsmParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMAsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMBitReader${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMBitWriter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMCodeGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMCore${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMDebugInfo${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMExecutionEngine${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInstCombine${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInstrumentation${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMInterpreter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMJIT${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMLinker${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMC${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCDisassembler${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCJIT${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMMCParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMObject${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMRuntimeDyld${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMScalarOpts${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMSelectionDAG${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMSupport${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTableGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTarget${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMTransformUtils${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMVectorize${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86AsmParser${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86AsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86CodeGen${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Desc${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Disassembler${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Info${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMX86Utils${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMipa${LIBEXT};${LIBDIR}/llvm/lib/${LIBPREFIX}LLVMipo${LIBEXT}")

 set(OSL_EXTRA_ARGS
  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
@@ -37,8 +45,13 @@ set(OSL_EXTRA_ARGS
  -DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
  -DBoost_NO_SYSTEM_PATHS=ON
  -DBoost_NO_BOOST_CMAKE=ON
-  -DOpenEXR_ROOT=${LIBDIR}/openexr/
-  -DIlmBase_ROOT=${LIBDIR}/openexr/
+  -DLLVM_DIRECTORY=${LIBDIR}/llvm
+  -DLLVM_INCLUDES=${LIBDIR}/llvm/include
+  -DLLVM_LIB_DIR=${LIBDIR}/llvm/lib
+  -DLLVM_VERSION=3.4
+  -DLLVM_LIBRARY=${OSL_LLVM_LIBRARY}
+  -DOPENEXR_HOME=${LIBDIR}/openexr/
+  -DILMBASE_HOME=${LIBDIR}/openexr/
  -DILMBASE_INCLUDE_DIR=${LIBDIR}/openexr/include/
  -DOPENEXR_HALF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Half${OPENEXR_VERSION_POSTFIX}${LIBEXT}
  -DOPENEXR_IMATH_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}Imath${OPENEXR_VERSION_POSTFIX}${LIBEXT}
@@ -46,36 +59,46 @@ set(OSL_EXTRA_ARGS
  -DOPENEXR_IEX_LIBRARY=${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=${LIBDIR}/openimageio/
  -DOSL_BUILD_TESTS=OFF
  -DOSL_BUILD_MATERIALX=OFF
-  -DPNG_ROOT=${LIBDIR}/png
  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+  -DOPENIMAGEIOHOME=${LIBDIR}/openimageio/
+  -DOPENIMAGEIO_INCLUDE_DIR=${LIBDIR}/openimageio/include
+  -DOPENIMAGEIO_LIBRARY=${OSL_OPENIMAGEIO_LIBRARY}
  ${OSL_FLEX_BISON}
  -DCMAKE_CXX_STANDARD_LIBRARIES=${OSL_CMAKE_CXX_STANDARD_LIBRARIES}
-  -DBUILD_SHARED_LIBS=OFF
-  -DLINKSTATIC=ON
-  -DOSL_BUILD_PLUGINS=OFF
+  -DBUILDSTATIC=ON
+  ${OSL_PLATFORM_FLAGS}
+  -DOSL_BUILD_PLUGINS=Off
  -DSTOP_ON_WARNING=OFF
  -DUSE_LLVM_BITCODE=OFF
-  -DLLVM_ROOT=${LIBDIR}/llvm/
-  -DLLVM_DIRECTORY=${LIBDIR}/llvm/
  -DUSE_PARTIO=OFF
  -DUSE_QT=OFF
-  -DUSE_Qt5=OFF
  -DINSTALL_DOCS=OFF
  ${OSL_SIMD_FLAGS}
-  -Dpugixml_ROOT=${LIBDIR}/pugixml
-  -DUSE_PYTHON=OFF
-  -DCMAKE_CXX_STANDARD=14
+  -DPARTIO_LIBRARIES=
 )

+if(WIN32)
+  set(OSL_EXTRA_ARGS
+    ${OSL_EXTRA_ARGS}
+    -DPUGIXML_HOME=${LIBDIR}/pugixml
+  )
+elseif(APPLE)
+  # Make symbol hiding consistent with OIIO which defaults to OFF,
+  # avoids linker warnings on macOS
+  set(OSL_EXTRA_ARGS
+    ${OSL_EXTRA_ARGS}
+    -DHIDE_SYMBOLS=OFF
+  )
+endif()
+
 ExternalProject_Add(external_osl
-  URL file://${PACKAGE_DIR}/${OSL_FILE}
+  URL ${OSL_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  LIST_SEPARATOR ^^
-  URL_HASH ${OSL_HASH_TYPE}=${OSL_HASH}
+  URL_HASH MD5=${OSL_HASH}
  PREFIX ${BUILD_DIR}/osl
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/osl/src/external_osl < ${PATCH_DIR}/osl.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/osl -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} ${DEFAULT_CMAKE_FLAGS} ${OSL_EXTRA_ARGS}
@@ -86,20 +109,19 @@ add_dependencies(
  external_osl
  external_boost
  ll
+  external_clang
  external_openexr
  external_zlib
+  external_flexbison
  external_openimageio
-  external_pugixml
 )
-if(WIN32)
+
+if(UNIX)
+  # Rely on PugiXML compiled with OpenImageIO
+else()
  add_dependencies(
    external_osl
-    external_flexbison
-  )
-elseif(UNIX AND NOT APPLE)
-  add_dependencies(
-    external_osl
-    external_flex
+    external_pugixml
  )
 endif()

--- a/build_files/build_environment/cmake/png.cmake
+++ b/build_files/build_environment/cmake/png.cmake
@@ -22,14 +22,14 @@ set(PNG_EXTRA_ARGS
  -DPNG_STATIC=ON
 )

-if(BLENDER_PLATFORM_ARM)
+if(APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64"))
  set(PNG_EXTRA_ARGS ${PNG_EXTRA_ARGS} -DPNG_HARDWARE_OPTIMIZATIONS=ON -DPNG_ARM_NEON=on -DCMAKE_SYSTEM_PROCESSOR="aarch64")
 endif()

 ExternalProject_Add(external_png
-  URL file://${PACKAGE_DIR}/${PNG_FILE}
+  URL ${PNG_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PNG_HASH_TYPE}=${PNG_HASH}
+  URL_HASH SHA256=${PNG_HASH}
  PREFIX ${BUILD_DIR}/png
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/png ${DEFAULT_CMAKE_FLAGS} ${PNG_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/png
--- a/build_files/build_environment/cmake/potrace.cmake
+++ b/build_files/build_environment/cmake/potrace.cmake
@@ -21,9 +21,9 @@ set(POTRACE_EXTRA_ARGS

 if((WIN32 AND BUILD_MODE STREQUAL Release) OR UNIX)
  ExternalProject_Add(external_potrace
-    URL file://${PACKAGE_DIR}/${POTRACE_FILE}
+    URL ${POTRACE_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${POTRACE_HASH_TYPE}=${POTRACE_HASH}
+    URL_HASH MD5=${POTRACE_HASH}
    PREFIX ${BUILD_DIR}/potrace
    PATCH_COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_potrace.txt ${BUILD_DIR}/potrace/src/external_potrace/CMakeLists.txt
    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/potrace ${DEFAULT_CMAKE_FLAGS} ${POTRACE_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/pthreads.cmake
+++ b/build_files/build_environment/cmake/pthreads.cmake
@@ -27,9 +27,9 @@ if(WIN32)
    set(PTHREADS_BUILD cd ${BUILD_DIR}/pthreads/src/external_pthreads/ && cd && nmake VC-static /e CPPFLAGS=${PTHREAD_CPPFLAGS})

    ExternalProject_Add(external_pthreads
-      URL file://${PACKAGE_DIR}/${PTHREADS_FILE}
+      URL ${PTHREADS_URI}
      DOWNLOAD_DIR ${DOWNLOAD_DIR}
-      URL_HASH ${PTHREADS_HASH_TYPE}=${PTHREADS_HASH}
+      URL_HASH MD5=${PTHREADS_HASH}
      PREFIX ${BUILD_DIR}/pthreads
      CONFIGURE_COMMAND echo .
      PATCH_COMMAND COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/pthreads/src/external_pthreads < ${PATCH_DIR}/pthreads.diff
--- a/build_files/build_environment/cmake/pugixml.cmake
+++ b/build_files/build_environment/cmake/pugixml.cmake
@@ -20,9 +20,9 @@ set(PUGIXML_EXTRA_ARGS
 )

 ExternalProject_Add(external_pugixml
-  URL file://${PACKAGE_DIR}/${PUGIXML_FILE}
+  URL ${PUGIXML_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${PUGIXML_HASH_TYPE}=${PUGIXML_HASH}
+  URL_HASH MD5=${PUGIXML_HASH}
  PREFIX ${BUILD_DIR}/pugixml
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/pugixml ${DEFAULT_CMAKE_FLAGS} ${PUGIXML_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/pugixml
@@ -30,13 +30,13 @@ ExternalProject_Add(external_pugixml
 if(WIN32)
  if(BUILD_MODE STREQUAL Release)
    ExternalProject_Add_Step(external_pugixml after_install
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pugixml ${HARVEST_TARGET}/pugixml
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/osl/lib/pugixml.lib
      DEPENDEES install
    )
  endif()
  if(BUILD_MODE STREQUAL Debug)
    ExternalProject_Add_Step(external_pugixml after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/pugixml/lib/pugixml_d.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/pugixml/lib/pugixml.lib ${HARVEST_TARGET}/osl/lib/pugixml_d.lib
      DEPENDEES install
    )
  endif()
--- a/build_files/build_environment/cmake/python.cmake
+++ b/build_files/build_environment/cmake/python.cmake
@@ -37,13 +37,13 @@ if(WIN32)
  cmake_to_dos_path(${DOWNLOADS_EXTERNALS_FOLDER} DOWNLOADS_EXTERNALS_FOLDER_DOS)

  ExternalProject_Add(external_python
-    URL file://${PACKAGE_DIR}/${PYTHON_FILE}
+    URL ${PYTHON_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${PYTHON_HASH_TYPE}=${PYTHON_HASH}
+    URL_HASH MD5=${PYTHON_HASH}
    PREFIX ${BUILD_DIR}/python
    CONFIGURE_COMMAND ""
    BUILD_COMMAND cd ${BUILD_DIR}/python/src/external_python/pcbuild/ && set IncludeTkinter=false && call build.bat -e -p x64 -c ${BUILD_MODE}
-    INSTALL_COMMAND ${PYTHON_BINARY_INTERNAL} ${PYTHON_SRC}/PC/layout/main.py -b ${PYTHON_SRC}/PCbuild/amd64 -s ${PYTHON_SRC} -t ${PYTHON_SRC}/tmp/ --include-stable --include-pip --include-dev --include-launchers  --include-venv --include-symbols ${PYTHON_EXTRA_INSTLAL_FLAGS} --copy ${LIBDIR}/python
+    INSTALL_COMMAND ${PYTHON_BINARY_INTERNAL} ${PYTHON_SRC}/PC/layout/main.py -b ${PYTHON_SRC}/PCbuild/amd64 -s ${PYTHON_SRC} -t ${PYTHON_SRC}/tmp/  --include-underpth --include-stable --include-pip --include-dev --include-launchers  --include-venv --include-symbols ${PYTHON_EXTRA_INSTLAL_FLAGS} --copy ${LIBDIR}/python
  )

 else()
@@ -74,15 +74,16 @@ else()
    endif()
    set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV} && ${PYTHON_FUNC_CONFIGS})
    set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python.exe)
+    set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_macos.diff)
  else()
    set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV})
    set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python)
-  endif()
-  # Link against zlib statically (Unix). Avoid rpath issues (macOS).
-  set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_unix.diff)
+    set(PYTHON_PATCH ${PATCH_CMD} --verbose -p1 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_linux.diff)
+ endif()
+
  set(PYTHON_CONFIGURE_EXTRA_ARGS "--with-openssl=${LIBDIR}/ssl")
-  set(PYTHON_CFLAGS "-I${LIBDIR}/sqlite/include -I${LIBDIR}/bzip2/include -I${LIBDIR}/lzma/include -I${LIBDIR}/zlib/include ${PLATFORM_CFLAGS}")
-  set(PYTHON_LDFLAGS "-L${LIBDIR}/ffi/lib -L${LIBDIR}/sqlite/lib -L${LIBDIR}/bzip2/lib -L${LIBDIR}/lzma/lib -L${LIBDIR}/zlib/lib ${PLATFORM_LDFLAGS}")
+  set(PYTHON_CFLAGS "-I${LIBDIR}/sqlite/include -I${LIBDIR}/bzip2/include -I${LIBDIR}/lzma/include -I${LIBDIR}/zlib/include")
+  set(PYTHON_LDFLAGS "-L${LIBDIR}/ffi/lib -L${LIBDIR}/sqlite/lib -L${LIBDIR}/bzip2/lib -L${LIBDIR}/lzma/lib -L${LIBDIR}/zlib/lib")
  set(PYTHON_CONFIGURE_EXTRA_ENV
    export CFLAGS=${PYTHON_CFLAGS} &&
    export CPPFLAGS=${PYTHON_CFLAGS} &&
@@ -90,9 +91,9 @@ else()
    export PKG_CONFIG_PATH=${LIBDIR}/ffi/lib/pkgconfig)

  ExternalProject_Add(external_python
-    URL file://${PACKAGE_DIR}/${PYTHON_FILE}
+    URL ${PYTHON_URI}
    DOWNLOAD_DIR ${DOWNLOAD_DIR}
-    URL_HASH ${PYTHON_HASH_TYPE}=${PYTHON_HASH}
+    URL_HASH MD5=${PYTHON_HASH}
    PREFIX ${BUILD_DIR}/python
    PATCH_COMMAND ${PYTHON_PATCH}
    CONFIGURE_COMMAND ${PYTHON_CONFIGURE_ENV} && ${PYTHON_CONFIGURE_EXTRA_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/python ${PYTHON_CONFIGURE_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/python_site_packages.cmake
+++ b/build_files/build_environment/cmake/python_site_packages.cmake
@@ -16,27 +16,14 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-if(WIN32 AND BUILD_MODE STREQUAL Debug)
-  set(SITE_PACKAGES_EXTRA --global-option build --global-option --debug)
-endif()
-
 ExternalProject_Add(external_python_site_packages
  DOWNLOAD_COMMAND ""
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  PREFIX ${BUILD_DIR}/site_packages
-  INSTALL_COMMAND ${PYTHON_BINARY} -m pip install ${SITE_PACKAGES_EXTRA} cython==${CYTHON_VERSION} idna==${IDNA_VERSION} chardet==${CHARDET_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} --no-binary :all:
+  INSTALL_COMMAND ${PYTHON_BINARY} -m pip install idna==${IDNA_VERSION} chardet==${CHARDET_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} --no-binary :all:
 )

-if(USE_PIP_NUMPY)
-  # Use only wheel (and not build from source) to stop NumPy from linking against buggy
-  # Accelerate framework backend on macOS. Official wheels are built with OpenBLAS.
-  ExternalProject_Add_Step(external_python_site_packages after_install
-    COMMAND ${PYTHON_BINARY} -m pip install --no-cache-dir numpy==${NUMPY_VERSION} --only-binary :all:
-    DEPENDEES install
-  )
-endif()
-
 add_dependencies(
  external_python_site_packages
  external_python
--- a/build_files/build_environment/cmake/sdl.cmake
+++ b/build_files/build_environment/cmake/sdl.cmake
@@ -30,9 +30,9 @@ else()
 endif()

 ExternalProject_Add(external_sdl
-  URL file://${PACKAGE_DIR}/${SDL_FILE}
+  URL ${SDL_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SDL_HASH_TYPE}=${SDL_HASH}
+  URL_HASH MD5=${SDL_HASH}
  PREFIX ${BUILD_DIR}/sdl
  PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/sdl/src/external_sdl < ${PATCH_DIR}/sdl.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/sdl ${DEFAULT_CMAKE_FLAGS} ${SDL_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/sndfile.cmake
+++ b/build_files/build_environment/cmake/sndfile.cmake
@@ -34,9 +34,9 @@ else()
 endif()

 ExternalProject_Add(external_sndfile
-  URL file://${PACKAGE_DIR}/${SNDFILE_FILE}
+  URL ${SNDFILE_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SNDFILE_HASH_TYPE}=${SNDFILE_HASH}
+  URL_HASH MD5=${SNDFILE_HASH}
  PREFIX ${BUILD_DIR}/sndfile
  PATCH_COMMAND ${SNDFILE_PATCH_CMD}
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && ${SNDFILE_ENV} ${CONFIGURE_COMMAND} ${SNDFILE_OPTIONS} --prefix=${mingw_LIBDIR}/sndfile
--- a/build_files/build_environment/cmake/spnav.cmake
+++ b/build_files/build_environment/cmake/spnav.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_spnav
-  URL file://${PACKAGE_DIR}/${SPNAV_FILE}
+  URL ${SPNAV_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SPNAV_HASH_TYPE}=${SPNAV_HASH}
+  URL_HASH MD5=${SPNAV_HASH}
  PREFIX ${BUILD_DIR}/spnav
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/spnav --disable-shared --enable-static --with-pic
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/sqlite.cmake
+++ b/build_files/build_environment/cmake/sqlite.cmake
@@ -42,27 +42,14 @@ if(UNIX)
    -DSQLITE_MAX_VARIABLE_NUMBER=250000 \
    -fPIC")
  set(SQLITE_CONFIGURE_ENV ${SQLITE_CONFIGURE_ENV} && export LDFLAGS=${SQLITE_LDFLAGS} && export CFLAGS=${SQLITE_CFLAGS})
-  set(SQLITE_CONFIGURATION_ARGS
-    ${SQLITE_CONFIGURATION_ARGS}
-    --enable-threadsafe
-    --enable-load-extension
-    --enable-json1
-    --enable-fts4
-    --enable-fts5
-    # While building `tcl` is harmless, it causes problems when the install step
-    # tries to copy the files into the system path.
-    # Since this isn't required by Python or Blender this can be disabled.
-    # Note that Debian (for example), splits this off into a separate package,
-    # so it's safe to turn off.
-    --disable-tcl
-    --enable-shared=no
-  )
+  set(SQLITE_CONFIGURATION_ARGS ${SQLITE_CONFIGURATION_ARGS} --enable-threadsafe --enable-load-extension --enable-json1 --enable-fts4 --enable-fts5
+      --enable-shared=no)
 endif()

 ExternalProject_Add(external_sqlite
-  URL file://${PACKAGE_DIR}/${SQLITE_FILE}
+  URL ${SQLITE_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SQLITE_HASH_TYPE}=${SQLITE_HASH}
+  URL_HASH SHA1=${SQLITE_HASH}
  PREFIX ${BUILD_DIR}/sqlite
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/sqlite/src/external_sqlite < ${PATCH_DIR}/sqlite.diff
  CONFIGURE_COMMAND ${SQLITE_CONFIGURE_ENV} && cd ${BUILD_DIR}/sqlite/src/external_sqlite/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/sqlite ${SQLITE_CONFIGURATION_ARGS}
--- a/build_files/build_environment/cmake/ssl.cmake
+++ b/build_files/build_environment/cmake/ssl.cmake
@@ -20,11 +20,9 @@ set(SSL_CONFIGURE_COMMAND ./Configure)
 set(SSL_PATCH_CMD echo .)

 if(APPLE)
-  set(SSL_OS_COMPILER "blender-darwin-${CMAKE_OSX_ARCHITECTURES}")
+   set(SSL_OS_COMPILER "blender-darwin-${CMAKE_OSX_ARCHITECTURES}")
 else()
-  if(BLENDER_PLATFORM_ARM)
-    set(SSL_OS_COMPILER "blender-linux-aarch64")
-  elseif("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+  if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
    set(SSL_EXTRA_ARGS enable-ec_nistp_64_gcc_128)
    set(SSL_OS_COMPILER "blender-linux-x86_64")
  else()
@@ -33,9 +31,9 @@ else()
 endif()

 ExternalProject_Add(external_ssl
-  URL file://${PACKAGE_DIR}/${SSL_FILE}
+  URL ${SSL_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${SSL_HASH_TYPE}=${SSL_HASH}
+  URL_HASH SHA256=${SSL_HASH}
  PREFIX ${BUILD_DIR}/ssl
  PATCH_COMMAND ${SSL_PATCH_CMD}
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ssl/src/external_ssl/ && ${SSL_CONFIGURE_COMMAND} --prefix=${LIBDIR}/ssl
--- a/build_files/build_environment/cmake/ssl.conf
+++ b/build_files/build_environment/cmake/ssl.conf
@@ -8,11 +8,6 @@ my %targets = (
    inherit_from     => [ "linux-x86_64" ],
    cflags => add("-fPIC"),
  },
-  "blender-linux-aarch64" => {
-    inherit_from     => [ "linux-aarch64" ],
-    cxxflags => add("-fPIC"),
-    cflags => add("-fPIC"),
-  },
  "blender-darwin-x86_64" => {
    inherit_from     => [ "darwin64-x86_64-cc" ],
    cflags => add("-fPIC"),
--- a/build_files/build_environment/cmake/tbb.cmake
+++ b/build_files/build_environment/cmake/tbb.cmake
@@ -21,8 +21,6 @@ if(WIN32)
    -DTBB_BUILD_TBBMALLOC=On
    -DTBB_BUILD_TBBMALLOC_PROXY=On
    -DTBB_BUILD_STATIC=Off
-    -DTBB_BUILD_TESTS=Off
-    -DCMAKE_DEBUG_POSTFIX=_debug
  )
  set(TBB_LIBRARY tbb)
  set(TBB_STATIC_LIBRARY Off)
@@ -32,7 +30,6 @@ else()
    -DTBB_BUILD_TBBMALLOC=On
    -DTBB_BUILD_TBBMALLOC_PROXY=Off
    -DTBB_BUILD_STATIC=On
-    -DTBB_BUILD_TESTS=Off
  )
  set(TBB_LIBRARY tbb_static)
  set(TBB_STATIC_LIBRARY On)
@@ -40,13 +37,12 @@ endif()

 # CMake script for TBB from https://github.com/wjakob/tbb/blob/master/CMakeLists.txt
 ExternalProject_Add(external_tbb
-  URL file://${PACKAGE_DIR}/${TBB_FILE}
+  URL ${TBB_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${TBB_HASH_TYPE}=${TBB_HASH}
+  URL_HASH MD5=${TBB_HASH}
  PREFIX ${BUILD_DIR}/tbb
  PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_tbb.txt ${BUILD_DIR}/tbb/src/external_tbb/CMakeLists.txt &&
-  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/tbb/src/external_tbb/build/vs2013/version_string.ver ${BUILD_DIR}/tbb/src/external_tbb/build/version_string.ver.in &&
-  ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/tbb/src/external_tbb < ${PATCH_DIR}/tbb.diff
+  ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/tbb/src/external_tbb/build/vs2013/version_string.ver ${BUILD_DIR}/tbb/src/external_tbb/src/tbb/version_string.ver
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tbb ${DEFAULT_CMAKE_FLAGS} ${TBB_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/tbb
 )
@@ -56,17 +52,17 @@ if(WIN32)
    ExternalProject_Add_Step(external_tbb after_install
      # findtbb.cmake in some deps *NEEDS* to find tbb_debug.lib even if they are not going to use it
      # to make that test pass, we place a copy with the right name in the lib folder.
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.lib ${LIBDIR}/tbb/lib/tbb_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.lib ${LIBDIR}/tbb/lib/tbbmalloc_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbb.dll ${LIBDIR}/tbb/bin/tbb_debug.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbbmalloc.dll ${LIBDIR}/tbb/bin/tbbmalloc_debug.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.lib ${HARVEST_TARGET}/tbb/lib/tbb_debug.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_debug.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.dll ${HARVEST_TARGET}/tbb/lib/tbb_debug.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc_debug.dll
      # Normal collection of build artifacts
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.lib ${HARVEST_TARGET}/tbb/lib/tbb.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbb.dll ${HARVEST_TARGET}/tbb/bin/tbb.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb.dll ${HARVEST_TARGET}/tbb/lib/tbb.dll
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbbmalloc.dll ${HARVEST_TARGET}/tbb/bin/tbbmalloc.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc.dll
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbbmalloc_proxy.dll ${HARVEST_TARGET}/tbb/bin/tbbmalloc_proxy.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.dll ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy.dll
      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tbb/include/ ${HARVEST_TARGET}/tbb/include/
      DEPENDEES install
    )
@@ -77,12 +73,11 @@ if(WIN32)
      # to make that test pass, we place a copy with the right name in the lib folder.
      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.lib ${LIBDIR}/tbb/lib/tbb.lib
      # Normal collection of build artifacts
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.lib ${HARVEST_TARGET}/tbb/lib/tbb_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbb_debug.dll ${HARVEST_TARGET}/tbb/bin/tbb_debug.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_debug.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy_debug.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy_debug.lib
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbbmalloc_debug.dll ${HARVEST_TARGET}/tbb/bin/tbbmalloc_debug.dll
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/bin/tbbmalloc_proxy_debug.dll ${HARVEST_TARGET}/tbb/bin/tbbmalloc_proxy_debug.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.lib ${HARVEST_TARGET}/tbb/lib/debug/tbb_debug.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_debug.dll ${HARVEST_TARGET}/tbb/lib/debug/tbb_debug.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.lib ${HARVEST_TARGET}/tbb/lib/tbbmalloc_proxy_debug.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc.dll ${HARVEST_TARGET}/tbb/lib/debug/tbbmalloc.dll
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbbmalloc_proxy.dll ${HARVEST_TARGET}/tbb/lib/debug/tbbmalloc_proxy.dll
      DEPENDEES install
    )
  endif()
--- a/build_files/build_environment/cmake/theora.cmake
+++ b/build_files/build_environment/cmake/theora.cmake
@@ -23,9 +23,9 @@ else()
 endif()

 ExternalProject_Add(external_theora
-  URL file://${PACKAGE_DIR}/${THEORA_FILE}
+  URL ${THEORA_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${THEORA_HASH_TYPE}=${THEORA_HASH}
+  URL_HASH SHA256=${THEORA_HASH}
  PREFIX ${BUILD_DIR}/theora
  PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/theora/src/external_theora < ${PATCH_DIR}/theora.diff
  CONFIGURE_COMMAND ${THEORA_CONFIGURE_ENV} && cd ${BUILD_DIR}/theora/src/external_theora/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/theora
--- a/build_files/build_environment/cmake/tiff.cmake
+++ b/build_files/build_environment/cmake/tiff.cmake
@@ -34,9 +34,9 @@ set(TIFF_EXTRA_ARGS
 )

 ExternalProject_Add(external_tiff
-  URL file://${PACKAGE_DIR}/${TIFF_FILE}
+  URL ${TIFF_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${TIFF_HASH_TYPE}=${TIFF_HASH}
+  URL_HASH MD5=${TIFF_HASH}
  PREFIX ${BUILD_DIR}/tiff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tiff ${DEFAULT_CMAKE_FLAGS} ${TIFF_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/tiff
--- a/build_files/build_environment/cmake/wayland_protocols.cmake
+++ b/build_files/build_environment/cmake/wayland_protocols.cmake
@@ -16,12 +16,16 @@
 #
 # ***** END GPL LICENSE BLOCK *****

-ExternalProject_Add(external_wayland_protocols
-  URL file://${PACKAGE_DIR}/${WL_PROTOCOLS_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${WL_PROTOCOLS_HASH_TYPE}=${WL_PROTOCOLS_HASH}
-  PREFIX ${BUILD_DIR}/wayland-protocols
-  CONFIGURE_COMMAND meson --prefix ${LIBDIR}/wayland-protocols . ../external_wayland_protocols -Dtests=false
-  BUILD_COMMAND ninja
-  INSTALL_COMMAND ninja install
+set(TINYXML_EXTRA_ARGS
+)
+
+ExternalProject_Add(external_tinyxml
+  URL ${TINYXML_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${TINYXML_HASH}
+  PREFIX ${BUILD_DIR}/tinyxml
+  # patch taken from ocio
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/tinyxml/src/external_tinyxml < ${PATCH_DIR}/tinyxml.diff
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tinyxml ${DEFAULT_CMAKE_FLAGS} ${TINYXML_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/tinyxml
 )
--- a/build_files/build_environment/cmake/usd.cmake
+++ b/build_files/build_environment/cmake/usd.cmake
@@ -53,9 +53,9 @@ set(USD_EXTRA_ARGS
 )

 ExternalProject_Add(external_usd
-  URL file://${PACKAGE_DIR}/${USD_FILE}
+  URL ${USD_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${USD_HASH_TYPE}=${USD_HASH}
+  URL_HASH MD5=${USD_HASH}
  PREFIX ${BUILD_DIR}/usd
  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/usd/src/external_usd < ${PATCH_DIR}/usd.diff
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/usd -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${USD_EXTRA_ARGS}
--- a/build_files/build_environment/cmake/versions.cmake
+++ b/build_files/build_environment/cmake/versions.cmake
@@ -19,54 +19,37 @@
 set(ZLIB_VERSION 1.2.11)
 set(ZLIB_URI https://zlib.net/zlib-${ZLIB_VERSION}.tar.gz)
 set(ZLIB_HASH 1c9f62f0778697a09d36121ead88e08e)
-set(ZLIB_HASH_TYPE MD5)
-set(ZLIB_FILE zlib-${ZLIB_VERSION}.tar.gz)

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

 set(PNG_VERSION 1.6.37)
 set(PNG_URI http://prdownloads.sourceforge.net/libpng/libpng-${PNG_VERSION}.tar.xz)
 set(PNG_HASH 505e70834d35383537b6491e7ae8641f1a4bed1876dbfe361201fc80868d88ca)
-set(PNG_HASH_TYPE SHA256)
-set(PNG_FILE libpng-${PNG_VERSION}.tar.xz)

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

-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 4036cd27ef7548b8d29c30ea10956196)
-set(BOOST_HASH_TYPE MD5)
-set(BOOST_FILE boost_${BOOST_VERSION_NODOTS}.tar.gz)
+set(BOOST_VERSION 1.70.0)
+set(BOOST_VERSION_NODOTS 1_70_0)
+set(BOOST_VERSION_NODOTS_SHORT 1_70)
+set(BOOST_URI https://dl.bintray.com/boostorg/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION_NODOTS}.tar.gz)
+set(BOOST_HASH fea771fe8176828fabf9c09242ee8c26)

 # 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${BLOSC_VERSION}.tar.gz)
 set(BLOSC_HASH 6e4a49c8c06f05aa543f3312cfce3d55)
-set(BLOSC_HASH_TYPE MD5)
-set(BLOSC_FILE blosc-${BLOSC_VERSION}.tar.gz)

 set(PTHREADS_VERSION 3.0.0)
-set(PTHREADS_URI http://prdownloads.sourceforge.net/pthreads4w/pthreads4w-code-v${PTHREADS_VERSION}.zip)
+set(PTHREADS_URI http://sourceforge.mirrorservice.org/p/pt/pthreads4w/pthreads4w-code-v${PTHREADS_VERSION}.zip)
 set(PTHREADS_HASH f3bf81bb395840b3446197bcf4ecd653)
-set(PTHREADS_HASH_TYPE MD5)
-set(PTHREADS_FILE pthreads4w-code-${PTHREADS_VERSION}.zip)

-set(OPENEXR_VERSION 2.5.5)
+set(OPENEXR_VERSION 2.4.0)
 set(OPENEXR_URI https://github.com/AcademySoftwareFoundation/openexr/archive/v${OPENEXR_VERSION}.tar.gz)
-set(OPENEXR_HASH 85e8a979092c9055d10ed103062d31a0)
-set(OPENEXR_HASH_TYPE MD5)
-set(OPENEXR_FILE openexr-${OPENEXR_VERSION}.tar.gz)
-
+set(OPENEXR_HASH 9e4d69cf2a12c6fb19b98af7c5e0eaee)
 if(WIN32)
  # Openexr started appending _d on its own so now
  # we need to tell the build the postfix is _s while
@@ -86,294 +69,201 @@ endif()
 set(FREETYPE_VERSION 2.10.2)
 set(FREETYPE_URI http://prdownloads.sourceforge.net/freetype/freetype-${FREETYPE_VERSION}.tar.gz)
 set(FREETYPE_HASH b1cb620e4c875cd4d1bfa04945400945)
-set(FREETYPE_HASH_TYPE MD5)
-set(FREETYPE_FILE freetype-${FREETYPE_VERSION}.tar.gz)

 set(GLEW_VERSION 1.13.0)
 set(GLEW_URI http://prdownloads.sourceforge.net/glew/glew/${GLEW_VERSION}/glew-${GLEW_VERSION}.tgz)
 set(GLEW_HASH 7cbada3166d2aadfc4169c4283701066)
-set(GLEW_HASH_TYPE MD5)
-set(GLEW_FILE glew-${GLEW_VERSION}.tgz)

 set(FREEGLUT_VERSION 3.0.0)
-set(FREEGLUT_URI http://prdownloads.sourceforge.net/freeglut/freeglut/${FREEGLUT_VERSION}/freeglut-${FREEGLUT_VERSION}.tar.gz)
+set(FREEGLUT_URI http://pilotfiber.dl.sourceforge.net/project/freeglut/freeglut/${FREEGLUT_VERSION}/freeglut-${FREEGLUT_VERSION}.tar.gz)
 set(FREEGLUT_HASH 90c3ca4dd9d51cf32276bc5344ec9754)
-set(FREEGLUT_HASH_TYPE MD5)
-set(FREEGLUT_FILE freeglut-${FREEGLUT_VERSION}.tar.gz)

-set(ALEMBIC_VERSION 1.7.16)
+set(ALEMBIC_VERSION 1.7.12)
 set(ALEMBIC_URI https://github.com/alembic/alembic/archive/${ALEMBIC_VERSION}.tar.gz)
-set(ALEMBIC_HASH effcc86e42fe6605588e3de57bde6677)
-set(ALEMBIC_HASH_TYPE MD5)
-set(ALEMBIC_FILE alembic-${ALEMBIC_VERSION}.tar.gz)
+set(ALEMBIC_MD5 e2b3777f23c5c09481a008cc6f0f8a40)

 # hash is for 3.1.2
 set(GLFW_GIT_UID 30306e54705c3adae9fe082c816a3be71963485c)
 set(GLFW_URI https://github.com/glfw/glfw/archive/${GLFW_GIT_UID}.zip)
 set(GLFW_HASH 20cacb1613da7eeb092f3ac4f6b2b3d0)
-set(GLFW_HASH_TYPE MD5)
-set(GLFW_FILE glfw-${GLFW_GIT_UID}.zip)

 # latest uid in git as of 2016-04-01
 set(CLEW_GIT_UID 277db43f6cafe8b27c6f1055f69dc67da4aeb299)
 set(CLEW_URI https://github.com/OpenCLWrangler/clew/archive/${CLEW_GIT_UID}.zip)
 set(CLEW_HASH 2c699d10ed78362e71f56fae2a4c5f98)
-set(CLEW_HASH_TYPE MD5)
-set(CLEW_FILE clew-${CLEW_GIT_UID}.zip)

 # latest uid in git as of 2016-04-01
 set(CUEW_GIT_UID 1744972026de9cf27c8a7dc39cf39cd83d5f922f)
 set(CUEW_URI https://github.com/CudaWrangler/cuew/archive/${CUEW_GIT_UID}.zip)
 set(CUEW_HASH 86760d62978ebfd96cd93f5aa1abaf4a)
-set(CUEW_HASH_TYPE MD5)
-set(CUEW_FILE cuew-${CUEW_GIT_UID}.zip)

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

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

 set(OPENCOLLADA_VERSION v1.6.68)
 set(OPENCOLLADA_URI https://github.com/KhronosGroup/OpenCOLLADA/archive/${OPENCOLLADA_VERSION}.tar.gz)
 set(OPENCOLLADA_HASH ee7dae874019fea7be11613d07567493)
-set(OPENCOLLADA_HASH_TYPE MD5)
-set(OPENCOLLADA_FILE opencollada-${OPENCOLLADA_VERSION}.tar.gz)

-set(OPENCOLORIO_VERSION 2.0.0)
+set(OPENCOLORIO_VERSION 1.1.1)
 set(OPENCOLORIO_URI https://github.com/AcademySoftwareFoundation/OpenColorIO/archive/v${OPENCOLORIO_VERSION}.tar.gz)
-set(OPENCOLORIO_HASH 1a2e3478b6cd9a1549f24e1b2205e3f0)
-set(OPENCOLORIO_HASH_TYPE MD5)
-set(OPENCOLORIO_FILE OpenColorIO-${OPENCOLORIO_VERSION}.tar.gz)
+set(OPENCOLORIO_HASH 23d8b9ac81599305539a5a8674b94a3d)

-set(LLVM_VERSION 12.0.0)
-set(LLVM_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/llvm-project-${LLVM_VERSION}.src.tar.xz)
-set(LLVM_HASH 5a4fab4d7fc84aefffb118ac2c8a4fc0)
-set(LLVM_HASH_TYPE MD5)
-set(LLVM_FILE llvm-project-${LLVM_VERSION}.src.tar.xz)
+set(LLVM_VERSION 9.0.1)
+set(LLVM_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz)
+set(LLVM_HASH 31eb9ce73dd2a0f8dcab8319fb03f8fc)

-if(APPLE)
-  # Cloth physics test is crashing due to this bug:
-  # https://bugs.llvm.org/show_bug.cgi?id=50579
-  set(OPENMP_VERSION 9.0.1)
-  set(OPENMP_HASH 6eade16057edbdecb3c4eef9daa2bfcf)
-else()
-  set(OPENMP_VERSION ${LLVM_VERSION})
-  set(OPENMP_HASH ac48ce3e4582ccb82f81ab59eb3fc9dc)
-endif()
-set(OPENMP_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${OPENMP_VERSION}/openmp-${OPENMP_VERSION}.src.tar.xz)
-set(OPENMP_HASH_TYPE MD5)
-set(OPENMP_FILE openmp-${OPENMP_VERSION}.src.tar.xz)
+set(CLANG_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/clang-${LLVM_VERSION}.src.tar.xz)
+set(CLANG_HASH 13468e4a44940efef1b75e8641752f90)

-set(OPENIMAGEIO_VERSION 2.2.15.1)
+set(OPENMP_URI https://github.com/llvm/llvm-project/releases/download/llvmorg-${LLVM_VERSION}/openmp-${LLVM_VERSION}.src.tar.xz)
+set(OPENMP_HASH 6eade16057edbdecb3c4eef9daa2bfcf)
+
+set(OPENIMAGEIO_VERSION 2.1.15.0)
 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)
+set(OPENIMAGEIO_HASH f03aa5e3ac4795af04771ee4146e9832)

 set(TIFF_VERSION 4.1.0)
 set(TIFF_URI http://download.osgeo.org/libtiff/tiff-${TIFF_VERSION}.tar.gz)
 set(TIFF_HASH 2165e7aba557463acc0664e71a3ed424)
-set(TIFF_HASH_TYPE MD5)
-set(TIFF_FILE tiff-${TIFF_VERSION}.tar.gz)

-set(OSL_VERSION 1.11.14.1)
+set(OSL_VERSION 1.10.10)
 set(OSL_URI https://github.com/imageworks/OpenShadingLanguage/archive/Release-${OSL_VERSION}.tar.gz)
-set(OSL_HASH 1abd7ce40481771a9fa937f19595d2f2)
-set(OSL_HASH_TYPE MD5)
-set(OSL_FILE OpenShadingLanguage-${OSL_VERSION}.tar.gz)
+set(OSL_HASH 00dec08a93c8084e53848b9ad047889f)

-set(PYTHON_VERSION 3.9.2)
-set(PYTHON_SHORT_VERSION 3.9)
-set(PYTHON_SHORT_VERSION_NO_DOTS 39)
+set(PYTHON_VERSION 3.7.7)
+set(PYTHON_SHORT_VERSION 3.7)
+set(PYTHON_SHORT_VERSION_NO_DOTS 37)
 set(PYTHON_URI https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz)
-set(PYTHON_HASH f0dc9000312abeb16de4eccce9a870ab)
-set(PYTHON_HASH_TYPE MD5)
-set(PYTHON_FILE Python-${PYTHON_VERSION}.tar.xz)
+set(PYTHON_HASH 172c650156f7bea68ce31b2fd01fa766)

-set(TBB_VERSION 2020_U2)
+set(TBB_VERSION 2019_U9)
 set(TBB_URI https://github.com/oneapi-src/oneTBB/archive/${TBB_VERSION}.tar.gz)
-set(TBB_HASH 1b711ae956524855088df3bbf5ec65dc)
-set(TBB_HASH_TYPE MD5)
-set(TBB_FILE oneTBB-${TBB_VERSION}.tar.gz)
+set(TBB_HASH 26263622e9187212ec240dcf01b66207)

-set(OPENVDB_VERSION 8.0.1)
+set(OPENVDB_VERSION 7.0.0)
 set(OPENVDB_URI https://github.com/AcademySoftwareFoundation/openvdb/archive/v${OPENVDB_VERSION}.tar.gz)
-set(OPENVDB_HASH 01b490be16cc0e15c690f9a153c21461)
-set(OPENVDB_HASH_TYPE MD5)
-set(OPENVDB_FILE openvdb-${OPENVDB_VERSION}.tar.gz)
+set(OPENVDB_HASH fd6c4f168282f7e0e494d290cd531fa8)

-set(NANOVDB_GIT_UID dc37d8a631922e7bef46712947dc19b755f3e841)
+set(NANOVDB_GIT_UID e62f7a0bf1e27397223c61ddeaaf57edf111b77f)
 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(NANOVDB_HASH 90919510bc6ccd630fedc56f748cb199)

-set(IDNA_VERSION 2.10)
-set(CHARDET_VERSION 4.0.0)
-set(URLLIB3_VERSION 1.26.3)
-set(CERTIFI_VERSION 2020.12.5)
-set(REQUESTS_VERSION 2.25.1)
-set(CYTHON_VERSION 0.29.21)
+set(IDNA_VERSION 2.9)
+set(CHARDET_VERSION 3.0.4)
+set(URLLIB3_VERSION 1.25.9)
+set(CERTIFI_VERSION 2020.4.5.2)
+set(REQUESTS_VERSION 2.23.0)

-set(NUMPY_VERSION 1.19.5)
-set(NUMPY_SHORT_VERSION 1.19)
+set(NUMPY_VERSION 1.17.5)
+set(NUMPY_SHORT_VERSION 1.17)
 set(NUMPY_URI https://github.com/numpy/numpy/releases/download/v${NUMPY_VERSION}/numpy-${NUMPY_VERSION}.zip)
-set(NUMPY_HASH f6a1b48717c552bbc18f1adc3cc1fe0e)
-set(NUMPY_HASH_TYPE MD5)
-set(NUMPY_FILE numpy-${NUMPY_VERSION}.zip)
+set(NUMPY_HASH 763a5646fa6eef7a22f4895bca0524f2)

 set(LAME_VERSION 3.100)
 set(LAME_URI http://downloads.sourceforge.net/project/lame/lame/3.100/lame-${LAME_VERSION}.tar.gz)
 set(LAME_HASH 83e260acbe4389b54fe08e0bdbf7cddb)
-set(LAME_HASH_TYPE MD5)
-set(LAME_FILE lame-${LAME_VERSION}.tar.gz)

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

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

 set(THEORA_VERSION 1.1.1)
 set(THEORA_URI http://downloads.xiph.org/releases/theora/libtheora-${THEORA_VERSION}.tar.bz2)
 set(THEORA_HASH b6ae1ee2fa3d42ac489287d3ec34c5885730b1296f0801ae577a35193d3affbc)
-set(THEORA_HASH_TYPE SHA256)
-set(THEORA_FILE libtheora-${THEORA_VERSION}.tar.bz2)

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

 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 8735d9fcd1a781ae6917f28f239a8aa358ce4864ba113ea18af4bb2dc8b474ac)
-set(VPX_HASH_TYPE SHA256)
-set(VPX_FILE libvpx-v${VPX_VERSION}.tar.gz)

 set(OPUS_VERSION 1.3.1)
 set(OPUS_URI https://archive.mozilla.org/pub/opus/opus-${OPUS_VERSION}.tar.gz)
 set(OPUS_HASH 65b58e1e25b2a114157014736a3d9dfeaad8d41be1c8179866f144a2fb44ff9d)
-set(OPUS_HASH_TYPE SHA256)
-set(OPUS_FILE opus-${OPUS_VERSION}.tar.gz)

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

 set(XVIDCORE_VERSION 1.3.7)
 set(XVIDCORE_URI https://downloads.xvid.com/downloads/xvidcore-${XVIDCORE_VERSION}.tar.gz)
 set(XVIDCORE_HASH abbdcbd39555691dd1c9b4d08f0a031376a3b211652c0d8b3b8aa9be1303ce2d)
-set(XVIDCORE_HASH_TYPE SHA256)
-set(XVIDCORE_FILE xvidcore-${XVIDCORE_VERSION}.tar.gz)

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

-set(FFMPEG_VERSION 4.4)
+set(FFMPEG_VERSION 4.2.3)
 set(FFMPEG_URI http://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.bz2)
-set(FFMPEG_HASH 42093549751b582cf0f338a21a3664f52e0a9fbe0d238d3c992005e493607d0e)
-set(FFMPEG_HASH_TYPE SHA256)
-set(FFMPEG_FILE ffmpeg-${FFMPEG_VERSION}.tar.bz2)
+set(FFMPEG_HASH 695fad11f3baf27784e24cb0e977b65a)

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

 set(ICONV_VERSION 1.16)
 set(ICONV_URI http://ftp.gnu.org/pub/gnu/libiconv/libiconv-${ICONV_VERSION}.tar.gz)
 set(ICONV_HASH 7d2a800b952942bb2880efb00cfd524c)
-set(ICONV_HASH_TYPE MD5)
-set(ICONV_FILE libiconv-${ICONV_VERSION}.tar.gz)

 set(SNDFILE_VERSION 1.0.28)
 set(SNDFILE_URI http://www.mega-nerd.com/libsndfile/files/libsndfile-${SNDFILE_VERSION}.tar.gz)
 set(SNDFILE_HASH 646b5f98ce89ac60cdb060fcd398247c)
-set(SNDFILE_HASH_TYPE MD5)
-set(SNDFILE_FILE libsndfile-${SNDFILE_VERSION}.tar.gz)
+
+# set(HIDAPI_VERSION 0.8.0-rc1)
+# set(HIDAPI_URI https://github.com/signal11/hidapi/archive/hidapi-${HIDAPI_VERSION}.tar.gz)
+# set(HIDAPI_HASH 069f9dd746edc37b6b6d0e3656f47199)
+
+set(HIDAPI_UID 89a6c75dc6f45ecabd4ddfbd2bf5ba6ad8ba38b5)
+set(HIDAPI_URI https://github.com/TheOnlyJoey/hidapi/archive/${HIDAPI_UID}.zip)
+set(HIDAPI_HASH b6e22f6b514f8bcf594989f20ffc46fb)

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

 set(SPNAV_VERSION 0.2.3)
 set(SPNAV_URI http://downloads.sourceforge.net/project/spacenav/spacenav%20library%20%28SDK%29/libspnav%20${SPNAV_VERSION}/libspnav-${SPNAV_VERSION}.tar.gz)
 set(SPNAV_HASH 44d840540d53326d4a119c0f1aa7bf0a)
-set(SPNAV_HASH_TYPE MD5)
-set(SPNAV_FILE libspnav-${SPNAV_VERSION}.tar.gz)

 set(JEMALLOC_VERSION 5.2.1)
 set(JEMALLOC_URI https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/jemalloc-${JEMALLOC_VERSION}.tar.bz2)
 set(JEMALLOC_HASH 3d41fbf006e6ebffd489bdb304d009ae)
-set(JEMALLOC_HASH_TYPE MD5)
-set(JEMALLOC_FILE jemalloc-${JEMALLOC_VERSION}.tar.bz2)

 set(XML2_VERSION 2.9.10)
 set(XML2_URI http://xmlsoft.org/sources/libxml2-${XML2_VERSION}.tar.gz)
 set(XML2_HASH 10942a1dc23137a8aa07f0639cbfece5)
-set(XML2_HASH_TYPE MD5)
-set(XML2_FILE libxml2-${XML2_VERSION}.tar.gz)

 set(TINYXML_VERSION 2_6_2)
 set(TINYXML_VERSION_DOTS 2.6.2)
 set(TINYXML_URI https://nchc.dl.sourceforge.net/project/tinyxml/tinyxml/${TINYXML_VERSION_DOTS}/tinyxml_${TINYXML_VERSION}.tar.gz)
 set(TINYXML_HASH c1b864c96804a10526540c664ade67f0)
-set(TINYXML_HASH_TYPE MD5)
-set(TINYXML_FILE tinyxml_${TINYXML_VERSION}.tar.gz)

 set(YAMLCPP_VERSION 0.6.3)
 set(YAMLCPP_URI https://codeload.github.com/jbeder/yaml-cpp/tar.gz/yaml-cpp-${YAMLCPP_VERSION})
 set(YAMLCPP_HASH b45bf1089a382e81f6b661062c10d0c2)
-set(YAMLCPP_HASH_TYPE MD5)
-set(YAMLCPP_FILE yaml-cpp-${YAMLCPP_VERSION}.tar.gz)

-set(EXPAT_VERSION 2_2_10)
-set(EXPAT_URI https://github.com/libexpat/libexpat/archive/R_${EXPAT_VERSION}.tar.gz)
-set(EXPAT_HASH 7ca5f09959fcb9a57618368deb627b9f)
-set(EXPAT_HASH_TYPE MD5)
-set(EXPAT_FILE libexpat-${EXPAT_VERSION}.tar.gz)
+set(LCMS_VERSION 2.9)
+set(LCMS_URI https://nchc.dl.sourceforge.net/project/lcms/lcms/${LCMS_VERSION}/lcms2-${LCMS_VERSION}.tar.gz)
+set(LCMS_HASH 8de1b7724f578d2995c8fdfa35c3ad0e)

 set(PUGIXML_VERSION 1.10)
 set(PUGIXML_URI https://github.com/zeux/pugixml/archive/v${PUGIXML_VERSION}.tar.gz)
 set(PUGIXML_HASH 0c208b0664c7fb822bf1b49ad035e8fd)
-set(PUGIXML_HASH_TYPE MD5)
-set(PUGIXML_FILE pugixml-${PUGIXML_VERSION}.tar.gz)

-set(FLEXBISON_VERSION 2.5.24)
-set(FLEXBISON_URI http://prdownloads.sourceforge.net/winflexbison/win_flex_bison-${FLEXBISON_VERSION}.zip)
-set(FLEXBISON_HASH 6b549d43e34ece0e8ed05af92daa31c4)
-set(FLEXBISON_HASH_TYPE MD5)
-set(FLEXBISON_FILE win_flex_bison-${FLEXBISON_VERSION}.zip)
-
-set(FLEX_VERSION 2.6.4)
-set(FLEX_URI https://github.com/westes/flex/releases/download/v${FLEX_VERSION}/flex-${FLEX_VERSION}.tar.gz)
-set(FLEX_HASH 2882e3179748cc9f9c23ec593d6adc8d)
-set(FLEX_HASH_TYPE MD5)
-set(FLEX_FILE flex-${FLEX_VERSION}.tar.gz)
+set(FLEXBISON_VERSION 2.5.5)
+set(FLEXBISON_URI http://prdownloads.sourceforge.net/winflexbison//win_flex_bison-2.5.5.zip)
+set(FLEXBISON_HASH d87a3938194520d904013abef3df10ce)

 # Libraries to keep Python modules static on Linux.

@@ -382,120 +272,59 @@ set(FLEX_FILE flex-${FLEX_VERSION}.tar.gz)
 set(BZIP2_VERSION 1.0.8)
 set(BZIP2_URI http://http.debian.net/debian/pool/main/b/bzip2/bzip2_${BZIP2_VERSION}.orig.tar.gz)
 set(BZIP2_HASH ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269)
-set(BZIP2_HASH_TYPE SHA256)
-set(BZIP2_FILE bzip2_${BZIP2_VERSION}.orig.tar.gz)

 set(FFI_VERSION 3.3)
 set(FFI_URI https://sourceware.org/pub/libffi/libffi-${FFI_VERSION}.tar.gz)
 set(FFI_HASH 72fba7922703ddfa7a028d513ac15a85c8d54c8d67f55fa5a4802885dc652056)
-set(FFI_HASH_TYPE SHA256)
-set(FFI_FILE libffi-${FFI_VERSION}.tar.gz)

 set(LZMA_VERSION 5.2.5)
 set(LZMA_URI https://tukaani.org/xz/xz-${LZMA_VERSION}.tar.bz2)
 set(LZMA_HASH 5117f930900b341493827d63aa910ff5e011e0b994197c3b71c08a20228a42df)
-set(LZMA_HASH_TYPE SHA256)
-set(LZMA_FILE xz-${LZMA_VERSION}.tar.bz2)

-if(BLENDER_PLATFORM_ARM)
-  # Need at least 1.1.1i for aarch64 support (https://github.com/openssl/openssl/pull/13218)
-  set(SSL_VERSION 1.1.1i)
-  set(SSL_URI https://www.openssl.org/source/openssl-${SSL_VERSION}.tar.gz)
-  set(SSL_HASH e8be6a35fe41d10603c3cc635e93289ed00bf34b79671a3a4de64fcee00d5242)
-  set(SSL_HASH_TYPE SHA256)
-  set(SSL_FILE openssl-${SSL_VERSION}.tar.gz)
-else()
-  set(SSL_VERSION 1.1.1g)
-  set(SSL_URI https://www.openssl.org/source/openssl-${SSL_VERSION}.tar.gz)
-  set(SSL_HASH ddb04774f1e32f0c49751e21b67216ac87852ceb056b75209af2443400636d46)
-  set(SSL_HASH_TYPE SHA256)
-  set(SSL_FILE openssl-${SSL_VERSION}.tar.gz)
-endif()
+set(SSL_VERSION 1.1.1g)
+set(SSL_URI https://www.openssl.org/source/openssl-${SSL_VERSION}.tar.gz)
+set(SSL_HASH ddb04774f1e32f0c49751e21b67216ac87852ceb056b75209af2443400636d46)

 set(SQLITE_VERSION 3.31.1)
 set(SQLITE_URI https://www.sqlite.org/2018/sqlite-src-3240000.zip)
 set(SQLITE_HASH fb558c49ee21a837713c4f1e7e413309aabdd9c7)
-set(SQLITE_HASH_TYPE SHA1)
-set(SQLITE_FILE sqlite-src-3240000.zip)

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

-set(USD_VERSION 21.02)
+set(USD_VERSION 20.05)
 set(USD_URI https://github.com/PixarAnimationStudios/USD/archive/v${USD_VERSION}.tar.gz)
-set(USD_HASH 1dd1e2092d085ed393c1f7c450a4155a)
-set(USD_HASH_TYPE MD5)
-set(USD_FILE usd-v${USD_VERSION}.tar.gz)
+set(USD_HASH 6d679e739e7f65725d9c029e37dda9fc)

-set(OIDN_VERSION 1.4.1)
+set(OIDN_VERSION 1.2.3)
 set(OIDN_URI https://github.com/OpenImageDenoise/oidn/releases/download/v${OIDN_VERSION}/oidn-${OIDN_VERSION}.src.tar.gz)
-set(OIDN_HASH df4007b0ab93b1c41cdf223b075d01c0)
-set(OIDN_HASH_TYPE MD5)
-set(OIDN_FILE oidn-${OIDN_VERSION}.src.tar.gz)
+set(OIDN_HASH 1f11466c2c3efc27faba5ec7078d12b2)

 set(LIBGLU_VERSION 9.0.1)
 set(LIBGLU_URI ftp://ftp.freedesktop.org/pub/mesa/glu/glu-${LIBGLU_VERSION}.tar.xz)
 set(LIBGLU_HASH 151aef599b8259efe9acd599c96ea2a3)
-set(LIBGLU_HASH_TYPE MD5)
-set(LIBGLU_FILE glu-${LIBGLU_VERSION}.tar.xz)

-set(MESA_VERSION 21.1.5)
-set(MESA_URI ftp://ftp.freedesktop.org/pub/mesa/mesa-${MESA_VERSION}.tar.xz)
-set(MESA_HASH 022c7293074aeeced2278c872db4fa693147c70f8595b076cf3f1ef81520766d)
-set(MESA_HASH_TYPE SHA256)
-set(MESA_FILE mesa-${MESA_VERSION}.tar.xz)
+set(MESA_VERSION 18.3.1)
+set(MESA_URI ftp://ftp.freedesktop.org/pub/mesa//mesa-${MESA_VERSION}.tar.xz)
+set(MESA_HASH d60828056d77bfdbae0970f9b15fb1be)

 set(NASM_VERSION 2.15.02)
-set(NASM_URI https://github.com/netwide-assembler/nasm/archive/nasm-${NASM_VERSION}.tar.gz)
-set(NASM_HASH aded8b796c996a486a56e0515c83e414116decc3b184d88043480b32eb0a8589)
-set(NASM_HASH_TYPE SHA256)
-set(NASM_FILE nasm-${NASM_VERSION}.tar.gz)
+set(NASM_URI https://www.nasm.us/pub/nasm/releasebuilds/${NASM_VERSION}/nasm-${NASM_VERSION}.tar.xz)
+set(NASM_HASH f4fd1329b1713e1ccd34b2fc121c4bcd278c9f91cc4cb205ae8fcd2e4728dd14)

-set(XR_OPENXR_SDK_VERSION 1.0.17)
+set(XR_OPENXR_SDK_VERSION 1.0.8)
 set(XR_OPENXR_SDK_URI https://github.com/KhronosGroup/OpenXR-SDK/archive/release-${XR_OPENXR_SDK_VERSION}.tar.gz)
-set(XR_OPENXR_SDK_HASH bf0fd8828837edff01047474e90013e1)
-set(XR_OPENXR_SDK_HASH_TYPE MD5)
-set(XR_OPENXR_SDK_FILE OpenXR-SDK-${XR_OPENXR_SDK_VERSION}.tar.gz)
+set(XR_OPENXR_SDK_HASH c6de63d2e0f9029aa58dfa97cad8ce07)

-set(WL_PROTOCOLS_VERSION 1.21)
-set(WL_PROTOCOLS_FILE wayland-protocols-${WL_PROTOCOLS_VERSION}.tar.gz)
-set(WL_PROTOCOLS_URI https://gitlab.freedesktop.org/wayland/wayland-protocols/-/archive/${WL_PROTOCOLS_VERSION}/${WL_PROTOCOLS_FILE})
-set(WL_PROTOCOLS_HASH af5ca07e13517cdbab33504492cef54a)
-set(WL_PROTOCOLS_HASH_TYPE MD5)
-
-set(ISPC_VERSION v1.16.0)
+set(ISPC_VERSION v1.14.1)
 set(ISPC_URI https://github.com/ispc/ispc/archive/${ISPC_VERSION}.tar.gz)
-set(ISPC_HASH 2e3abedbc0ea9aaec17d6562c632454d)
-set(ISPC_HASH_TYPE MD5)
-set(ISPC_FILE ispc-${ISPC_VERSION}.tar.gz)
+set(ISPC_HASH 968fbc8dfd16a60ba4e32d2e0e03ea7a)

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

 set(POTRACE_VERSION 1.16)
 set(POTRACE_URI http://potrace.sourceforge.net/download/${POTRACE_VERSION}/potrace-${POTRACE_VERSION}.tar.gz)
 set(POTRACE_HASH 5f0bd87ddd9a620b0c4e65652ef93d69)
-set(POTRACE_HASH_TYPE MD5)
-set(POTRACE_FILE potrace-${POTRACE_VERSION}.tar.gz)
-
-set(HARU_VERSION 2_3_0)
-set(HARU_URI https://github.com/libharu/libharu/archive/RELEASE_${HARU_VERSION}.tar.gz)
-set(HARU_HASH 4f916aa49c3069b3a10850013c507460)
-set(HARU_HASH_TYPE MD5)
-set(HARU_FILE libharu-${HARU_VERSION}.tar.gz)
-
-set(ZSTD_VERSION 1.5.0)
-set(ZSTD_URI https://github.com/facebook/zstd/releases/download/v${ZSTD_VERSION}/zstd-${ZSTD_VERSION}.tar.gz)
-set(ZSTD_HASH 5194fbfa781fcf45b98c5e849651aa7b3b0a008c6b72d4a0db760f3002291e94)
-set(ZSTD_HASH_TYPE SHA256)
-set(ZSTD_FILE zstd-${ZSTD_VERSION}.tar.gz)
-
-set(SSE2NEON_GIT https://github.com/DLTcollab/sse2neon.git)
-set(SSE2NEON_GIT_HASH fe5ff00bb8d19b327714a3c290f3e2ce81ba3525)
--- a/build_files/build_environment/cmake/vorbis.cmake
+++ b/build_files/build_environment/cmake/vorbis.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_vorbis
-  URL file://${PACKAGE_DIR}/${VORBIS_FILE}
+  URL ${VORBIS_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${VORBIS_HASH_TYPE}=${VORBIS_HASH}
+  URL_HASH SHA256=${VORBIS_HASH}
  PREFIX ${BUILD_DIR}/vorbis
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vorbis/src/external_vorbis/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/vorbis
    --disable-shared
--- a/build_files/build_environment/cmake/vpx.cmake
+++ b/build_files/build_environment/cmake/vpx.cmake
@@ -35,9 +35,9 @@ else()
 endif()

 ExternalProject_Add(external_vpx
-  URL file://${PACKAGE_DIR}/${VPX_FILE}
+  URL ${VPX_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${VPX_HASH_TYPE}=${VPX_HASH}
+  URL_HASH SHA256=${VPX_HASH}
  PREFIX ${BUILD_DIR}/vpx
  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
    cd ${BUILD_DIR}/vpx/src/external_vpx/ &&
--- a/build_files/build_environment/cmake/webp.cmake
+++ b/build_files/build_environment/cmake/webp.cmake
@@ -32,9 +32,9 @@ else()
 endif()

 ExternalProject_Add(external_webp
-  URL file://${PACKAGE_DIR}/${WEBP_FILE}
+  URL ${WEBP_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${WEBP_HASH_TYPE}=${WEBP_HASH}
+  URL_HASH MD5=${WEBP_HASH}
  PREFIX ${BUILD_DIR}/webp
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/webp -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${WEBP_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/webp
--- a/build_files/build_environment/cmake/x264.cmake
+++ b/build_files/build_environment/cmake/x264.cmake
@@ -20,22 +20,30 @@ if(WIN32)
  set(X264_EXTRA_ARGS --enable-win32thread --cross-prefix=${MINGW_HOST}- --host=${MINGW_HOST})
 endif()

-if(BLENDER_PLATFORM_ARM)
-  set(X264_EXTRA_ARGS ${X264_EXTRA_ARGS} "--disable-asm")
-endif()

-if((APPLE AND NOT BLENDER_PLATFORM_ARM) OR (UNIX AND NOT APPLE))
-  set(X264_CONFIGURE_ENV
-    export AS=${LIBDIR}/nasm/bin/nasm
-  )
+if(APPLE)
+  if("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "arm64")
+    set(X264_EXTRA_ARGS ${X264_EXTRA_ARGS} "--disable-asm")
+    set(X264_CONFIGURE_ENV echo .)
+  else()
+    set(X264_CONFIGURE_ENV
+      export AS=${LIBDIR}/nasm/bin/nasm
+    )
+  endif()
 else()
  set(X264_CONFIGURE_ENV echo .)
 endif()

+if(UNIX AND NOT APPLE)
+  set(X264_CONFIGURE_ENV
+    export AS=${LIBDIR}/nasm/bin/nasm
+  )
+endif()
+
 ExternalProject_Add(external_x264
-  URL file://${PACKAGE_DIR}/${X264_FILE}
+  URL ${X264_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${X264_HASH_TYPE}=${X264_HASH}
+  URL_HASH SHA256=${X264_HASH}
  PREFIX ${BUILD_DIR}/x264
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && ${X264_CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ &&
    ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/x264
--- a/build_files/build_environment/cmake/xml2.cmake
+++ b/build_files/build_environment/cmake/xml2.cmake
@@ -17,9 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_xml2
-  URL file://${PACKAGE_DIR}/${XML2_FILE}
+  URL ${XML2_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${XML2_HASH_TYPE}=${XML2_HASH}
+  URL_HASH MD5=${XML2_HASH}
  PREFIX ${BUILD_DIR}/xml2
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xml2/src/external_xml2/ && ${CONFIGURE_COMMAND}
    --prefix=${LIBDIR}/xml2
--- a/build_files/build_environment/cmake/xr_openxr.cmake
+++ b/build_files/build_environment/cmake/xr_openxr.cmake
@@ -35,9 +35,9 @@ if(UNIX AND NOT APPLE)
 endif()

 ExternalProject_Add(external_xr_openxr_sdk
-  URL file://${PACKAGE_DIR}/${XR_OPENXR_SDK_FILE}
+  URL ${XR_OPENXR_SDK_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${XR_OPENXR_SDK_HASH_TYPE}=${XR_OPENXR_SDK_HASH}
+  URL_HASH MD5=${XR_OPENXR_SDK_HASH}
  PREFIX ${BUILD_DIR}/xr_openxr_sdk
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/xr_openxr_sdk ${DEFAULT_CMAKE_FLAGS} ${XR_OPENXR_SDK_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/xr_openxr_sdk
@@ -53,7 +53,7 @@ if(WIN32)
  endif()
  if(BUILD_MODE STREQUAL Debug)
    ExternalProject_Add_Step(external_xr_openxr_sdk after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/xr_openxr_sdk/lib/openxr_loaderd.lib ${HARVEST_TARGET}/xr_openxr_sdk/lib/openxr_loaderd.lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/xr_openxr_sdk/lib/openxr_loader.lib ${HARVEST_TARGET}/xr_openxr_sdk/lib/openxr_loader_d.lib
      DEPENDEES install
    )
  endif()
--- a/build_files/build_environment/cmake/xvidcore.cmake
+++ b/build_files/build_environment/cmake/xvidcore.cmake
@@ -21,9 +21,9 @@ if(WIN32)
 endif()

 ExternalProject_Add(external_xvidcore
-  URL file://${PACKAGE_DIR}/${XVIDCORE_FILE}
+  URL ${XVIDCORE_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${XVIDCORE_HASH_TYPE}=${XVIDCORE_HASH}
+  URL_HASH SHA256=${XVIDCORE_HASH}
  PREFIX ${BUILD_DIR}/xvidcore
  CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xvidcore/src/external_xvidcore/build/generic && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/xvidcore ${XVIDCORE_EXTRA_ARGS}
  BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xvidcore/src/external_xvidcore/build/generic && make -j${MAKE_THREADS}
--- a/build_files/build_environment/cmake/yamlcpp.cmake
+++ b/build_files/build_environment/cmake/yamlcpp.cmake
@@ -17,22 +17,17 @@
 # ***** END GPL LICENSE BLOCK *****

 set(YAMLCPP_EXTRA_ARGS
+  -DBUILD_GMOCK=OFF
  -DYAML_CPP_BUILD_TESTS=OFF
  -DYAML_CPP_BUILD_TOOLS=OFF
  -DYAML_CPP_BUILD_CONTRIB=OFF
+  -DYAML_MSVC_SHARED_RT=ON
 )

-if(WIN32)
-  set(YAMLCPP_EXTRA_ARGS
-    ${YAMLCPP_EXTRA_ARGS}
-    -DBUILD_GMOCK=OFF
-    -DYAML_MSVC_SHARED_RT=ON)
-endif()
-
 ExternalProject_Add(external_yamlcpp
-  URL file://${PACKAGE_DIR}/${YAMLCPP_FILE}
+  URL ${YAMLCPP_URI}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${YAMLCPP_HASH_TYPE}=${YAMLCPP_HASH}
+  URL_HASH MD5=${YAMLCPP_HASH}
  PREFIX ${BUILD_DIR}/yamlcpp
  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/yamlcpp ${DEFAULT_CMAKE_FLAGS} ${YAMLCPP_EXTRA_ARGS}
  INSTALL_DIR ${LIBDIR}/yamlcpp
--- a/build_files/build_environment/cmake/zlib.cmake
+++ b/build_files/build_environment/cmake/zlib.cmake
@@ -17,8 +17,9 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_zlib
-  URL file://${PACKAGE_DIR}/${ZLIB_FILE}
-  URL_HASH ${ZLIB_HASH_TYPE}=${ZLIB_HASH}
+  URL ${ZLIB_URI}
+  URL_HASH MD5=${ZLIB_HASH}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  PREFIX ${BUILD_DIR}/zlib
  CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib ${DEFAULT_CMAKE_FLAGS}
  INSTALL_DIR ${LIBDIR}/zlib
--- a/build_files/build_environment/cmake/zlib_mingw.cmake
+++ b/build_files/build_environment/cmake/zlib_mingw.cmake
@@ -17,8 +17,8 @@
 # ***** END GPL LICENSE BLOCK *****

 ExternalProject_Add(external_zlib_mingw
-  URL file://${PACKAGE_DIR}/${ZLIB_FILE}
-  URL_HASH ${ZLIB_HASH_TYPE}=${ZLIB_HASH}
+  URL ${ZLIB_URI}
+  URL_HASH MD5=${ZLIB_HASH}
  DOWNLOAD_DIR ${DOWNLOAD_DIR}
  PREFIX ${BUILD_DIR}/zlib_mingw
  CONFIGURE_COMMAND echo .
--- a/build_files/build_environment/cmake/zstd.cmake
+++ b/build_files/build_environment/cmake/zstd.cmake
@@ -1,51 +0,0 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ***** END GPL LICENSE BLOCK *****
-
-set(ZSTD_EXTRA_ARGS
-  -DZSTD_BUILD_PROGRAMS=OFF
-  -DZSTD_BUILD_SHARED=OFF
-  -DZSTD_BUILD_STATIC=ON
-  -DZSTD_BUILD_TESTS=OFF
-  -DZSTD_LEGACY_SUPPORT=OFF
-  -DZSTD_LZ4_SUPPORT=OFF
-  -DZSTD_LZMA_SUPPORT=OFF
-  -DZSTD_MULTITHREAD_SUPPORT=ON
-  -DZSTD_PROGRAMS_LINK_SHARED=OFF
-  -DZSTD_USE_STATIC_RUNTIME=OFF
-  -DZSTD_ZLIB_SUPPORT=OFF
-)
-
-ExternalProject_Add(external_zstd
-  URL file://${PACKAGE_DIR}/${ZSTD_FILE}
-  DOWNLOAD_DIR ${DOWNLOAD_DIR}
-  URL_HASH ${ZSTD_HASH_TYPE}=${ZSTD_HASH}
-  PREFIX ${BUILD_DIR}/zstd
-  SOURCE_SUBDIR build/cmake
-  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zstd ${DEFAULT_CMAKE_FLAGS} ${ZSTD_EXTRA_ARGS}
-  INSTALL_DIR ${LIBDIR}/zstd
-)
-
-if(WIN32)
-  if(BUILD_MODE STREQUAL Release)
-    ExternalProject_Add_Step(external_zstd after_install
-      COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/zstd/lib/zstd_static${LIBEXT} ${HARVEST_TARGET}/zstd/lib/zstd_static${LIBEXT}
-      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/zstd/include/ ${HARVEST_TARGET}/zstd/include/
-      DEPENDEES install
-    )
-  endif()
-endif()
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
--- a/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
@@ -20,7 +20,7 @@
 # ILMBASE_LIBRARIES   - list of libraries to link against when using IlmBase.
 # ILMBASE_FOUND       - True if IlmBase was found.

-# Other standard issue macros
+# Other standarnd issue macros
 include(FindPackageHandleStandardArgs)
 include(FindPackageMessage)
 include(SelectLibraryConfigurations)
--- a/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
+++ b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
@@ -22,7 +22,7 @@
 #                       These are defined by the FindIlmBase module.
 # OPENEXR_FOUND       - True if OpenEXR was found.

-# Other standard issue macros
+# Other standarnd issue macros
 include(SelectLibraryConfigurations)
 include(FindPackageHandleStandardArgs)
 include(FindPackageMessage)
--- a/build_files/build_environment/patches/cmakelists_tbb.txt
+++ b/build_files/build_environment/patches/cmakelists_tbb.txt
@@ -1,32 +1,5 @@
-cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
-
-if (POLICY CMP0048)
-  # cmake warns if loaded from a min-3.0-required parent dir, so silence the warning:
-  cmake_policy(SET CMP0048 NEW)
-endif()
-
-project (tbb CXX)
-
-include(CheckCXXCompilerFlag)
-include(CheckCXXSourceRuns)
-
-if(POLICY CMP0058)
-  cmake_policy(SET CMP0058 NEW)
-endif()
-
-if(POLICY CMP0068)
-  cmake_policy(SET CMP0068 NEW)
-endif()
-
-if (POLICY CMP0078)
-  # swig standard target names
-  cmake_policy(SET CMP0078 NEW)
-endif ()
-
-if (POLICY CMP0086)
-  # UseSWIG honors SWIG_MODULE_NAME via -module flag
-  cmake_policy(SET CMP0086 NEW)
-endif ()
+cmake_minimum_required (VERSION 2.8)
+project(tbb CXX)

 if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  message(STATUS "Setting build type to 'Release' as none was specified.")
@@ -35,43 +8,18 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
    "MinSizeRel" "RelWithDebInfo")
 endif()

-if(NOT TBB_INSTALL_RUNTIME_DIR)
-  set(TBB_INSTALL_RUNTIME_DIR bin)
-endif()
-if(NOT TBB_INSTALL_LIBRARY_DIR)
-  set(TBB_INSTALL_LIBRARY_DIR lib)
-endif()
-if(NOT TBB_INSTALL_ARCHIVE_DIR)
-  set(TBB_INSTALL_ARCHIVE_DIR lib)
-endif()
-if(NOT TBB_INSTALL_INCLUDE_DIR)
-  set(TBB_INSTALL_INCLUDE_DIR include)
-endif()
-if(NOT TBB_CMAKE_PACKAGE_INSTALL_DIR)
-  set(TBB_CMAKE_PACKAGE_INSTALL_DIR lib/cmake/tbb)
-endif()
-
-include_directories(include src src/rml/include ${CMAKE_CURRENT_BINARY_DIR})
+include_directories(include src src/rml/include )

 option(TBB_BUILD_SHARED          "Build TBB shared library" ON)
 option(TBB_BUILD_STATIC          "Build TBB static library" ON)
 option(TBB_BUILD_TBBMALLOC       "Build TBB malloc library" ON)
 option(TBB_BUILD_TBBMALLOC_PROXY "Build TBB malloc proxy library" ON)
-option(TBB_BUILD_TESTS           "Build TBB tests and enable testing infrastructure" ON)
-option(TBB_NO_DATE               "Do not save the configure date in the version string" OFF)
-option(TBB_BUILD_PYTHON          "Build TBB Python bindings" OFF)
-option(TBB_SET_SOVERSION         "Set the SOVERSION (shared library build version suffix)?" OFF)
-
-# When this repository is part of a larger build system of a parent project
-# we may not want TBB to set up default installation targets
-option(TBB_INSTALL_TARGETS       "Include build targets for 'make install'" ON)

 if(APPLE)
  set(CMAKE_MACOSX_RPATH ON)
 endif()

 file(GLOB tbb_src "${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/*.cpp" "${CMAKE_CURRENT_SOURCE_DIR}/src/old/*.cpp")
-list(REMOVE_ITEM tbb_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/tbb_bind.cpp)
 list(APPEND tbb_src ${CMAKE_CURRENT_SOURCE_DIR}/src/rml/client/rml_tbb.cpp)
 file(GLOB to_remove "${CMAKE_CURRENT_SOURCE_DIR}/src/old/test*.cpp")
 list(REMOVE_ITEM tbb_src ${to_remove})
@@ -90,143 +38,66 @@ set(tbbmalloc_proxy_src
  src/tbbmalloc/proxy.cpp
  src/tbbmalloc/tbb_function_replacement.cpp)

-add_library (tbb_interface INTERFACE)
-add_definitions(-DTBB_SUPPRESS_DEPRECATED_MESSAGES=1)
-
-if (CMAKE_SYSTEM_PROCESSOR MATCHES "(i386|x86_64)")
-  if (NOT APPLE AND NOT MINGW)
-    target_compile_definitions(tbb_interface INTERFACE DO_ITT_NOTIFY)
-  endif()
-endif()
-
-if (APPLE)
+if (NOT APPLE)
+  add_definitions(-DDO_ITT_NOTIFY)
+else()
  # Disable annoying "has no symbols" warnings
-  set(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
-  set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
-  set(CMAKE_C_ARCHIVE_FINISH   "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
-  set(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
+ set(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
+ set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
+ set(CMAKE_C_ARCHIVE_FINISH   "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
+ set(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
 endif()

-macro(CHECK_CXX_COMPILER_AND_LINKER_FLAGS _RESULT _CXX_FLAGS _LINKER_FLAGS)
-  set(CMAKE_REQUIRED_FLAGS ${_CXX_FLAGS})
-  set(CMAKE_REQUIRED_LIBRARIES ${_LINKER_FLAGS})
-  set(CMAKE_REQUIRED_QUIET TRUE)
-  check_cxx_source_runs("#include <iostream>\nint main(int argc, char **argv) { std::cout << \"test\"; return 0; }" ${_RESULT})
-  set(CMAKE_REQUIRED_FLAGS "")
-  set(CMAKE_REQUIRED_LIBRARIES "")
-endmacro()
-
-# Prefer libc++ in conjunction with Clang
-if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-  if (CMAKE_CXX_FLAGS MATCHES "-stdlib=libc\\+\\+")
-    message(STATUS "TBB: using libc++.")
-  else()
-    CHECK_CXX_COMPILER_AND_LINKER_FLAGS(HAS_LIBCPP "-stdlib=libc++" "-stdlib=libc++")
-    if (HAS_LIBCPP)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -D_LIBCPP_VERSION")
-      set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
-      set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -stdlib=libc++")
-      message(STATUS "TBB: using libc++.")
-    else()
-      message(STATUS "TBB: NOT using libc++.")
-    endif()
-  endif()
-endif()
-
-set (CMAKE_CXX_STANDARD 11)
-
 if (UNIX)
-  target_compile_definitions(tbb_interface INTERFACE USE_PTHREAD)
-
-  check_cxx_compiler_flag ("-mrtm -Werror" SUPPORTS_MRTM)
-  if (SUPPORTS_MRTM)
-    target_compile_options(tbb_interface INTERFACE "-mrtm")
-  endif ()
-
-elseif(WIN32)
-  target_compile_definitions(tbb_interface INTERFACE USE_WINTHREAD _WIN32_WINNT=0x0600)
-  if (MSVC)
-    enable_language(ASM_MASM)
-    target_compile_options(tbb_interface INTERFACE /GS- /Zc:wchar_t /Zc:forScope)
-    check_cxx_compiler_flag ("/volatile:iso" SUPPORTS_VOLATILE_FLAG)
-    if (SUPPORTS_VOLATILE_FLAG)
-      target_compile_options(tbb_interface INTERFACE /volatile:iso)
-    endif ()
-    target_compile_options(tbb_interface INTERFACE $<$<COMPILE_LANGUAGE:CXX>:/wd4267 /wd4800 /wd4146 /wd4244 /wd4577 /wd4018>)
-    if (NOT CMAKE_SIZEOF_VOID_P)
-       message(FATAL_ERROR "'CMAKE_SIZEOF_VOID_P' is undefined. Please delete your build directory and rerun CMake again!")
-    endif()
-
-    if (CMAKE_SIZEOF_VOID_P EQUAL 8)
-      list(APPEND tbb_src src/tbb/intel64-masm/atomic_support.asm
-        src/tbb/intel64-masm/itsx.asm src/tbb/intel64-masm/intel64_misc.asm)
-      list(APPEND tbbmalloc_src src/tbb/intel64-masm/atomic_support.asm)
-      set(CMAKE_ASM_MASM_FLAGS "/DEM64T=1 ${CMAKE_ASM_MASM_FLAGS}")
-    else()
-      list(APPEND tbb_src src/tbb/ia32-masm/atomic_support.asm
-        src/tbb/ia32-masm/itsx.asm src/tbb/ia32-masm/lock_byte.asm)
-      # Enable SAFESEH feature for assembly (x86 builds only).
-      set(CMAKE_ASM_MASM_FLAGS "/safeseh ${CMAKE_ASM_MASM_FLAGS}")
-    endif()
-  elseif (MINGW)
-    target_compile_options(tbb_interface INTERFACE "-mthreads")
-  endif ()
-endif()
-
-if (MSVC)
-  set(ENABLE_RTTI "/EHsc /GR ")
-  set(DISABLE_RTTI "/EHs- /GR- ")
-elseif (UNIX)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -DUSE_PTHREAD")
+  if(NOT CMAKE_CXX_FLAGS MATCHES "-mno-rtm")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mrtm")
+  endif()
+  if (APPLE)
+    set(ARCH_PREFIX "mac")
+  else()
+    set(ARCH_PREFIX "lin")
+  endif()
+  if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(ARCH_PREFIX "${ARCH_PREFIX}64")
+  else()
+    set(ARCH_PREFIX "${ARCH_PREFIX}32")
+  endif()
  set(ENABLE_RTTI "-frtti -fexceptions ")
  set(DISABLE_RTTI "-fno-rtti -fno-exceptions ")
-endif ()
+elseif(WIN32)
+  cmake_minimum_required (VERSION 3.1)
+  enable_language(ASM_MASM)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GS- /Zc:wchar_t /Zc:forScope /DUSE_WINTHREAD")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D_CRT_SECURE_NO_DEPRECATE /D_WIN32_WINNT=0x0600 /volatile:iso")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4267 /wd4800 /wd4146 /wd4244 /wd4018")

-##--------
-#   - Added TBB_USE_GLIBCXX_VERSION macro to specify the version of GNU
-#     libstdc++ when it cannot be properly recognized, e.g. when used
-#     with Clang on Linux* OS. Inspired by a contribution from David A.
-if (NOT TBB_USE_GLIBCXX_VERSION AND UNIX AND NOT APPLE)
-  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-    # using Clang
-    string(REPLACE "." "0" TBB_USE_GLIBCXX_VERSION ${CMAKE_CXX_COMPILER_VERSION})
+  if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    list(APPEND tbb_src src/tbb/intel64-masm/atomic_support.asm
+      src/tbb/intel64-masm/itsx.asm src/tbb/intel64-masm/intel64_misc.asm)
+    list(APPEND tbbmalloc_src src/tbb/intel64-masm/atomic_support.asm)
+    set(CMAKE_ASM_MASM_FLAGS "/DEM64T=1")
+    set(ARCH_PREFIX "win64")
+  else()
+    list(APPEND tbb_src src/tbb/ia32-masm/atomic_support.asm
+      src/tbb/ia32-masm/itsx.asm src/tbb/ia32-masm/lock_byte.asm)
+    list(APPEND tbbmalloc_src src/tbb/ia32-masm/atomic_support.asm)
+    set(ARCH_PREFIX "win32")
  endif()
+  set(ENABLE_RTTI "/EHsc /GR ")
+  set(DISABLE_RTTI "/EHs- /GR- ")
 endif()

-if (TBB_USE_GLIBCXX_VERSION)
-  target_compile_definitions(tbb_interface INTERFACE TBB_USE_GLIBCXX_VERSION=${TBB_USE_GLIBCXX_VERSION})
-endif()
-
-##-------
-
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-   check_cxx_compiler_flag ("-flifetime-dse=1" SUPPORTS_FLIFETIME)
-   if (SUPPORTS_FLIFETIME)
-     target_compile_options(tbb_interface INTERFACE -flifetime-dse=1)
-   endif()
+  include(CheckCXXCompilerFlag)
+  check_cxx_compiler_flag("-flifetime-dse=1" SUPPORTS_FLIFETIME)
+  if (SUPPORTS_FLIFETIME)
+    add_definitions(-flifetime-dse=1)
+  endif()
 endif()

 # Linker export definitions
-if (APPLE)
-  set (ARCH_PREFIX "mac")
-elseif(WIN32)
-  set (ARCH_PREFIX "win")
-else()
-  set (ARCH_PREFIX "lin")
-endif()
-
-if (CMAKE_SIZEOF_VOID_P EQUAL 8)
-  set(ARCH_PREFIX "${ARCH_PREFIX}64")
-else()
-  set(ARCH_PREFIX "${ARCH_PREFIX}32")
-endif()
-
-if (MINGW)
-  set (ARCH_PREFIX "${ARCH_PREFIX}-gcc")
-  # there's no win32-gcc-tbb-export.def, use lin32-tbb-export.def
-  execute_process (COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/lin32-tbb-export.def ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/win32-gcc-tbb-export.def)
-endif()
-
-if (MSVC)
+if (WIN32)
  add_custom_command(OUTPUT tbb.def
    COMMAND ${CMAKE_CXX_COMPILER} /TC /EP ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include > tbb.def
    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def
@@ -238,15 +109,18 @@ if (MSVC)
    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def
    COMMENT "Preprocessing tbbmalloc.def"
  )
+  list(APPEND tbb_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/tbb_resource.rc)
+  list(APPEND tbbmalloc_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/tbbmalloc.rc)
+  list(APPEND tbbmalloc_proxy_src ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/tbbmalloc.rc)
 else()
  add_custom_command(OUTPUT tbb.def
-    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -std=c++11 -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o tbb.def
+    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o tbb.def
    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def
    COMMENT "Preprocessing tbb.def"
  )

  add_custom_command(OUTPUT tbbmalloc.def
-    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -std=c++11 -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o   tbbmalloc.def
+    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o   tbbmalloc.def
    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def
    COMMENT "Preprocessing tbbmalloc.def"
  )
@@ -257,80 +131,34 @@ add_custom_target(tbb_def_files DEPENDS tbb.def tbbmalloc.def)
 # TBB library
 if (TBB_BUILD_STATIC)
  add_library(tbb_static STATIC ${tbb_src})
-  target_link_libraries(tbb_static PRIVATE tbb_interface)
-  target_include_directories(tbb_static INTERFACE "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>" "$<INSTALL_INTERFACE:${TBB_INSTALL_INCLUDE_DIR}>")
+  set_property(TARGET tbb_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_BUILD=1")
+  set_property(TARGET tbb_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_SOURCE_DIRECTLY_INCLUDED=1")
  set_property(TARGET tbb_static APPEND_STRING PROPERTY COMPILE_FLAGS ${ENABLE_RTTI})
-  if (TBB_INSTALL_TARGETS)
-    install(TARGETS tbb_static ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR})
-  endif()
-
-  target_compile_definitions(tbb_static
-    PRIVATE
-      -D__TBB_BUILD=1
-      -D__TBB_DYNAMIC_LOAD_ENABLED=0
-      -D__TBB_SOURCE_DIRECTLY_INCLUDED=1)
-
-  if (MSVC)
-    target_compile_definitions(tbb_static
-      PUBLIC -D__TBB_NO_IMPLICIT_LINKAGE=1
-      PRIVATE -D_CRT_SECURE_NO_WARNINGS)
-  endif()
-
-  if (UNIX AND NOT APPLE)
-    target_link_libraries(tbb_static PUBLIC pthread dl)
-  endif()
+  install(TARGETS tbb_static ARCHIVE DESTINATION lib)
 endif()

 if (TBB_BUILD_SHARED)
  add_library(tbb SHARED ${tbb_src})
-  target_link_libraries(tbb PRIVATE tbb_interface)
-  target_include_directories(tbb INTERFACE "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>" "$<INSTALL_INTERFACE:${TBB_INSTALL_INCLUDE_DIR}>")
+  set_property(TARGET tbb APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_BUILD=1")
  set_property(TARGET tbb APPEND_STRING PROPERTY COMPILE_FLAGS ${ENABLE_RTTI})
-  if (TBB_SET_SOVERSION)
-    set_property(TARGET tbb PROPERTY SOVERSION 2)
-  endif ()
-
-  target_compile_definitions(tbb
-    PRIVATE -D__TBB_BUILD=1)
-
-  if (MSVC)
-    target_compile_definitions(tbb
-      PUBLIC -D__TBB_NO_IMPLICIT_LINKAGE=1
-      PRIVATE -D_CRT_SECURE_NO_WARNINGS)
-  endif()
-
  add_dependencies(tbb tbb_def_files)
-
  if (APPLE)
-    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,\"${CMAKE_CURRENT_BINARY_DIR}/tbb.def\"")
-  elseif (MSVC)
-    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "/DEF:\"${CMAKE_CURRENT_BINARY_DIR}/tbb.def\"")
-  else ()
-    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,\"${CMAKE_CURRENT_BINARY_DIR}/tbb.def\"")
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+  elseif(UNIX)
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+  elseif(WIN32)
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "/DEF:${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+    
  endif()
-
-  if (TBB_INSTALL_TARGETS)
-    install(TARGETS tbb EXPORT TBB
-            LIBRARY DESTINATION ${TBB_INSTALL_LIBRARY_DIR}
-            ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR}
-            RUNTIME DESTINATION ${TBB_INSTALL_RUNTIME_DIR})
-    if (MSVC)
-      install(FILES $<TARGET_PDB_FILE:tbb> DESTINATION ${TBB_INSTALL_RUNTIME_DIR} OPTIONAL)
-    endif()
-  endif()
-
-  if (UNIX AND NOT APPLE)
-    target_link_libraries(tbb PUBLIC pthread dl)
+  install(TARGETS tbb DESTINATION lib)
+  if(WIN32)
+    set_target_properties(tbb PROPERTIES OUTPUT_NAME "tbb$<$<CONFIG:Debug>:_debug>")
  endif()
 endif()

-
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+if(CMAKE_COMPILER_IS_GNUCC)
  # Quench a warning on GCC
  set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/governor.cpp COMPILE_FLAGS "-Wno-missing-field-initializers ")
-elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-  # Quench a warning on Clang
-  set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/itt_notify.cpp COMPILE_FLAGS "-Wno-varargs ")
 elseif(MSVC)
  # Quench a warning on MSVC
  set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/scheduler.cpp COMPILE_FLAGS "/wd4458 ")
@@ -340,50 +168,24 @@ if(TBB_BUILD_TBBMALLOC)
  # TBB malloc library
  if (TBB_BUILD_STATIC)
    add_library(tbbmalloc_static STATIC ${tbbmalloc_static_src})
-    target_link_libraries(tbbmalloc_static PRIVATE tbb_interface)
    set_property(TARGET tbbmalloc_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
-    set_property(TARGET tbbmalloc_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_DYNAMIC_LOAD_ENABLED=0")
-    set_property(TARGET tbbmalloc_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_SOURCE_DIRECTLY_INCLUDED=1")
    set_property(TARGET tbbmalloc_static APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
-    if (MSVC)
-      target_compile_definitions(tbbmalloc_static PUBLIC __TBB_NO_IMPLICIT_LINKAGE=1 __TBBMALLOC_NO_IMPLICIT_LINKAGE=1)
-    endif()
-    if (TBB_INSTALL_TARGETS)
-      install(TARGETS tbbmalloc_static ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR})
-    endif()
+    install(TARGETS tbbmalloc_static ARCHIVE DESTINATION lib)
  endif()

  if (TBB_BUILD_SHARED)
    add_library(tbbmalloc SHARED ${tbbmalloc_src})
-    target_link_libraries(tbbmalloc PRIVATE tbb_interface)
    set_property(TARGET tbbmalloc APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
    set_property(TARGET tbbmalloc APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
-    if (TBB_SET_SOVERSION)
-      set_property(TARGET tbbmalloc PROPERTY SOVERSION 2)
-    endif ()
    add_dependencies(tbbmalloc tbb_def_files)
    if (APPLE)
-      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,\"${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def\"")
-    elseif (MSVC)
-      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "/DEF:\"${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def\"")
-    else ()
-      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,\"${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def\"")
-    endif()
-    if (MSVC)
-      target_compile_definitions(tbbmalloc PUBLIC __TBB_NO_IMPLICIT_LINKAGE=1 __TBBMALLOC_NO_IMPLICIT_LINKAGE=1)
-    endif()
-    if (TBB_INSTALL_TARGETS)
-      install(TARGETS tbbmalloc EXPORT TBB
-              LIBRARY DESTINATION ${TBB_INSTALL_LIBRARY_DIR}
-              ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR}
-              RUNTIME DESTINATION ${TBB_INSTALL_RUNTIME_DIR})
-      if (MSVC)
-        install(FILES $<TARGET_PDB_FILE:tbbmalloc> DESTINATION ${TBB_INSTALL_RUNTIME_DIR} OPTIONAL)
-      endif()
-    endif()
-    if (UNIX AND NOT APPLE)
-      target_link_libraries(tbbmalloc PUBLIC pthread dl)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
+    elseif(UNIX)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
+    elseif(WIN32)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "/DEF:${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
    endif()
+    install(TARGETS tbbmalloc DESTINATION lib)
  endif()
 endif()

@@ -391,298 +193,19 @@ if(TBB_BUILD_TBBMALLOC_PROXY)
  # TBB malloc proxy library
  if (TBB_BUILD_STATIC)
    add_library(tbbmalloc_proxy_static STATIC ${tbbmalloc_proxy_src})
-    target_link_libraries(tbbmalloc_proxy_static PRIVATE tbb_interface)
    set_property(TARGET tbbmalloc_proxy_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
-    set_property(TARGET tbbmalloc_proxy_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_DYNAMIC_LOAD_ENABLED=0")
-    set_property(TARGET tbbmalloc_proxy_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_SOURCE_DIRECTLY_INCLUDED=1")
    set_property(TARGET tbbmalloc_proxy_static APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
-    if (TBB_INSTALL_TARGETS)
-      install(TARGETS tbbmalloc_proxy_static ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR})
-    endif()
+    link_libraries(tbbmalloc_proxy_static tbbmalloc)
+    install(TARGETS tbbmalloc_proxy_static ARCHIVE DESTINATION lib)
  endif()

  if (TBB_BUILD_SHARED)
    add_library(tbbmalloc_proxy SHARED ${tbbmalloc_proxy_src})
-    target_link_libraries(tbbmalloc_proxy PRIVATE tbb_interface)
    set_property(TARGET tbbmalloc_proxy APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
    set_property(TARGET tbbmalloc_proxy APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
-    if (TBB_SET_SOVERSION)
-      set_property(TARGET tbbmalloc_proxy PROPERTY SOVERSION 2)
-    endif ()
-    target_link_libraries(tbbmalloc_proxy PUBLIC tbbmalloc)
-    if (TBB_INSTALL_TARGETS)
-      install(TARGETS tbbmalloc_proxy EXPORT TBB
-              LIBRARY DESTINATION ${TBB_INSTALL_LIBRARY_DIR}
-              ARCHIVE DESTINATION ${TBB_INSTALL_ARCHIVE_DIR}
-              RUNTIME DESTINATION ${TBB_INSTALL_RUNTIME_DIR})
-      if (MSVC)
-        install(FILES $<TARGET_PDB_FILE:tbbmalloc_proxy> DESTINATION ${TBB_INSTALL_RUNTIME_DIR} OPTIONAL)
-      endif()
-    endif()
-    if (UNIX AND NOT APPLE)
-      target_link_libraries(tbbmalloc_proxy PUBLIC pthread dl)
-    endif()
+    target_link_libraries(tbbmalloc_proxy tbbmalloc)
+    install(TARGETS tbbmalloc_proxy DESTINATION lib)
  endif()
 endif()

-if (TBB_INSTALL_TARGETS)
-  install(DIRECTORY include/tbb DESTINATION ${TBB_INSTALL_INCLUDE_DIR})
-  if (TBB_BUILD_SHARED)
-    install(EXPORT TBB DESTINATION ${TBB_CMAKE_PACKAGE_INSTALL_DIR} NAMESPACE TBB:: FILE TBBConfig.cmake)
-  endif()
-endif()
-
-# version file
-if (TBB_INSTALL_TARGETS)
-  set (_VERSION_FILE ${CMAKE_CURRENT_SOURCE_DIR}/include/tbb/tbb_stddef.h)
-  file (STRINGS ${_VERSION_FILE} _VERSION_MAJOR_STRING REGEX ".*define[ ]+TBB_VERSION_MAJOR[ ]+[0-9]+.*")
-  file (STRINGS ${_VERSION_FILE} _VERSION_MINOR_STRING REGEX ".*define[ ]+TBB_VERSION_MINOR[ ]+[0-9]+.*")
-  string (REGEX REPLACE ".*TBB_VERSION_MAJOR[ ]+([0-9]+)" "\\1" TBB_MAJOR_VERSION ${_VERSION_MAJOR_STRING})
-  string (REGEX REPLACE ".*TBB_VERSION_MINOR[ ]+([0-9]+)" "\\1" TBB_MINOR_VERSION ${_VERSION_MINOR_STRING})
-  set (TBB_VERSION_STRING "${TBB_MAJOR_VERSION}.${TBB_MINOR_VERSION}")
-  include (CMakePackageConfigHelpers)
-  write_basic_package_version_file (TBBConfigVersion.cmake VERSION "${TBB_VERSION_STRING}" COMPATIBILITY AnyNewerVersion)
-  install (FILES ${CMAKE_CURRENT_BINARY_DIR}/TBBConfigVersion.cmake DESTINATION "${TBB_CMAKE_PACKAGE_INSTALL_DIR}")
-endif()
-
-# version_string.ver
-if (UNIX AND NOT TBB_NO_DATE)
-  execute_process (COMMAND date "+%a, %d %b %Y %H:%M:%S %z"
-                   OUTPUT_VARIABLE _configure_date
-                   OUTPUT_STRIP_TRAILING_WHITESPACE)
-elseif (WIN32 AND NOT TBB_NO_DATE)
-  execute_process (COMMAND cmd " /C date /T"
-                   OUTPUT_VARIABLE _configure_date
-                   OUTPUT_STRIP_TRAILING_WHITESPACE)
-else ()
-  set (_configure_date "Unknown")
-endif()
-set (TBB_CONFIG_DATE "${_configure_date}" CACHE STRING "First time that TBB was configured")
-set (_configure_date "${TBB_CONFIG_DATE}")
-include_directories (${CMAKE_BINARY_DIR})
-configure_file (build/version_string.ver.in version_string.ver @ONLY)
-
-if (TBB_BUILD_TESTS)
-  enable_language (C)
-  enable_testing ()
-
-  find_library (LIBRT_LIBRARIES rt)
-  find_library (LIDL_LIBRARIES dl)
-  find_package (Threads)
-  if (NOT APPLE)
-    find_package (OpenMP)
-  endif()
-
-  macro (tbb_add_test testname)
-    set (full_testname tbb_test_${testname})
-    add_executable (${full_testname} src/test/test_${testname}.cpp)
-    target_link_libraries(${full_testname} PRIVATE tbb_interface)
-    if (TBB_BUILD_SHARED)
-      target_link_libraries (${full_testname} PRIVATE tbb tbbmalloc)
-      target_compile_definitions (${full_testname} PRIVATE __TBB_LIB_NAME=tbb)
-    else ()
-      target_link_libraries (${full_testname} PRIVATE tbb_static tbbmalloc_static)
-      target_compile_definitions (${full_testname} PRIVATE __TBB_LIB_NAME=tbb_static)
-    endif ()
-    if (LIBRT_LIBRARIES)
-      target_link_libraries (${full_testname} PRIVATE ${LIBRT_LIBRARIES})
-    endif ()
-    if (LIDL_LIBRARIES)
-      target_link_libraries (${full_testname} PRIVATE ${LIDL_LIBRARIES})
-    endif ()
-    if (Threads_FOUND)
-      target_link_libraries (${full_testname} PRIVATE ${CMAKE_THREAD_LIBS_INIT})
-    endif ()
-    if (OPENMP_FOUND AND "${testname}" MATCHES "openmp")
-      set_target_properties (${full_testname} PROPERTIES COMPILE_FLAGS "${OpenMP_CXX_FLAGS}")
-      set_target_properties (${full_testname} PROPERTIES LINK_FLAGS "${OpenMP_CXX_FLAGS}")
-    endif()
-    if (MINGW)
-      target_link_libraries (${full_testname} PRIVATE psapi)
-    endif ()
-    add_test (NAME ${full_testname} COMMAND ${full_testname})
-  endmacro ()
-
-  tbb_add_test (aggregator)
-  tbb_add_test (aligned_space)
-  tbb_add_test (assembly)
-  if (NOT WIN32)
-    tbb_add_test (async_msg) # msvc64/debug timeouts
-  endif()
-  tbb_add_test (async_node)
-  # tbb_add_test (atomic) # msvc64/debug timeouts: Compile-time initialization fails for static tbb::atomic variables
-  tbb_add_test (blocked_range2d)
-  tbb_add_test (blocked_range3d)
-  tbb_add_test (blocked_range)
-  tbb_add_test (broadcast_node)
-  tbb_add_test (buffer_node)
-  tbb_add_test (cache_aligned_allocator)
-  if (NOT WIN32)
-    tbb_add_test (cache_aligned_allocator_STL)
-  endif()
-  tbb_add_test (cilk_dynamic_load)
-  tbb_add_test (cilk_interop)
-  tbb_add_test (combinable)
-  tbb_add_test (composite_node)
-  tbb_add_test (concurrent_hash_map)
-  tbb_add_test (concurrent_lru_cache)
-  # tbb_add_test (concurrent_monitor) # too long
-  # tbb_add_test (concurrent_priority_queue)
-  if (NOT WIN32)
-    tbb_add_test (concurrent_queue) # msvc64/debug timeouts
-  endif()
-  # tbb_add_test (concurrent_queue_whitebox)
-  tbb_add_test (concurrent_unordered_map)
-  # tbb_add_test (concurrent_unordered_set)
-  tbb_add_test (concurrent_vector)
-  tbb_add_test (continue_node)
-  tbb_add_test (critical_section)
-  tbb_add_test (dynamic_link)
-  # tbb_add_test (eh_algorithms)
-  tbb_add_test (eh_flow_graph)
-  # tbb_add_test (eh_tasks)
-  tbb_add_test (enumerable_thread_specific)
-  tbb_add_test (examples_common_utility)
-  # tbb_add_test (fast_random)
-  tbb_add_test (flow_graph)
-  tbb_add_test (flow_graph_whitebox)
-  # tbb_add_test (fp) # mingw: harness_fp.h:66, assertion !checkConsistency || (ctl.mxcsr & SSE_RND_MODE_MASK) >> 3 == (ctl.x87cw & FE_RND_MODE_MASK): failed
-  # tbb_add_test (function_node) # mingw:random timeout
-  # tbb_add_test (global_control)
-  # tbb_add_test (global_control_whitebox)
-  tbb_add_test (halt)
-  tbb_add_test (handle_perror)
-  # tbb_add_test (hw_concurrency)
-  tbb_add_test (indexer_node)
-  tbb_add_test (inits_loop)
-  tbb_add_test (intrusive_list)
-  tbb_add_test (ittnotify)
-  # tbb_add_test (join_node) #msvc/64: fatal error C1128: number of sections exceeded object file format limit: compile with /bigob
-  tbb_add_test (lambda)
-  tbb_add_test (limiter_node)
-  # tbb_add_test (malloc_atexit)
-  # tbb_add_test (malloc_compliance) #mingw: Limits should be decreased for the test to work
-  tbb_add_test (malloc_init_shutdown)
-  # tbb_add_test (malloc_lib_unload)
-  # tbb_add_test (malloc_overload)
-  tbb_add_test (malloc_pools)
-  tbb_add_test (malloc_regression)
-  # tbb_add_test (malloc_used_by_lib)
-  # tbb_add_test (malloc_whitebox)
-  tbb_add_test (model_plugin)
-  # tbb_add_test (multifunction_node) # too long
-  tbb_add_test (mutex)
-  tbb_add_test (mutex_native_threads)
-  # tbb_add_test (opencl_node)
-  if (OPENMP_FOUND)
-    tbb_add_test (openmp)
-  endif ()
-  tbb_add_test (overwrite_node)
-  # tbb_add_test (parallel_do)
-  # This seems to fail on CI platforms (AppVeyor/Travis), perhaps because the VM exposes just 1 core?
-  tbb_add_test (parallel_for)
-  tbb_add_test (parallel_for_each)
-  tbb_add_test (parallel_for_vectorization)
-  tbb_add_test (parallel_invoke)
-  tbb_add_test (parallel_pipeline)
-  tbb_add_test (parallel_reduce)
-  tbb_add_test (parallel_scan)
-  tbb_add_test (parallel_sort)
-  tbb_add_test (parallel_while)
-  # tbb_add_test (partitioner_whitebox) # too long
-  tbb_add_test (pipeline)
-  # tbb_add_test (pipeline_with_tbf) # takes forever on appveyor
-  tbb_add_test (priority_queue_node)
-  tbb_add_test (queue_node)
-  tbb_add_test (reader_writer_lock)
-  # tbb_add_test (runtime_loader) # LINK : fatal error LNK1104: cannot open file 'tbbproxy.lib' [C:\projects\tbb\test_runtime_loader.vcxproj]
-  tbb_add_test (rwm_upgrade_downgrade)
-  # tbb_add_test (ScalableAllocator)
-  if (NOT WIN32)
-    tbb_add_test (ScalableAllocator_STL)
-  endif()
-  tbb_add_test (semaphore)
-  # tbb_add_test (sequencer_node) # msvc: timeout
-  tbb_add_test (source_node)
-  tbb_add_test (split_node)
-  tbb_add_test (static_assert)
-  tbb_add_test (std_thread)
-  tbb_add_test (tagged_msg)
-  # tbb_add_test (task_arena) # LINK : fatal error LNK1104: cannot open file '__TBB_LIB_NAME.lib' [C:\projects\tbb\test_task_arena.vcxproj]
-  # tbb_add_test (task_assertions)
-  tbb_add_test (task_auto_init)
-  tbb_add_test (task)
-  # tbb_add_test (task_enqueue) # too long
-  tbb_add_test (task_group)
-  # tbb_add_test (task_leaks)
-  # tbb_add_test (task_priority)
-  # tbb_add_test (task_scheduler_init) # msvc: test_task_scheduler_init.cpp:68, assertion !test_mandatory_parallelism || Harness::CanReachConcurrencyLevel(threads): failed
-  tbb_add_test (task_scheduler_observer)
-  tbb_add_test (task_steal_limit)
-  tbb_add_test (tbb_condition_variable)
-  tbb_add_test (tbb_fork)
-  # tbb_add_test (tbb_header)
-  tbb_add_test (tbb_thread)
-  # tbb_add_test (tbb_version)
-  tbb_add_test (tick_count)
-  tbb_add_test (tuple)
-  tbb_add_test (write_once_node)
-  tbb_add_test (yield)
-endif ()
-
-if (TBB_BUILD_PYTHON)
-  find_package(PythonInterp)
-  find_package(PythonLibs ${PYTHON_VERSION_STRING} EXACT)
-  find_package(SWIG 3)
-  if (PythonLibs_FOUND AND SWIG_FOUND AND TBB_BUILD_SHARED)
-    include (${SWIG_USE_FILE})
-    set_source_files_properties (python/tbb/api.i PROPERTIES CPLUSPLUS ON)
-    set (CMAKE_SWIG_FLAGS "-threads")
-
-    # swig_add_module is deprecated
-    if (CMAKE_VERSION VERSION_LESS 3.8)
-      swig_add_module (api python python/tbb/api.i)
-    else ()
-      swig_add_library (api LANGUAGE python SOURCES python/tbb/api.i)
-    endif ()
-
-    # UseSWIG generates now standard target names
-    if (CMAKE_VERSION VERSION_LESS 3.13)
-      set (module_target ${SWIG_MODULE_api_REAL_NAME})
-    else ()
-      set (module_target api)
-    endif ()
-
-    target_include_directories(${module_target} PRIVATE ${PYTHON_INCLUDE_DIRS})
-    target_link_libraries(${module_target} PRIVATE tbb)
-    if(WIN32)
-      target_link_libraries(${module_target} ${PYTHON_LIBRARIES})
-    elseif(APPLE)
-      set_target_properties(${module_target} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
-    endif()
-
-    if (WIN32)
-      set (PYTHON_SITE_PACKAGES Lib/site-packages)
-    else ()
-      set (PYTHON_SITE_PACKAGES lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages)
-    endif ()
-    if (TBB_INSTALL_TARGETS)
-      install(FILES python/TBB.py
-              DESTINATION ${PYTHON_SITE_PACKAGES})
-      install(FILES python/tbb/__init__.py python/tbb/pool.py python/tbb/test.py python/tbb/__main__.py ${CMAKE_CURRENT_BINARY_DIR}/api.py
-              DESTINATION ${PYTHON_SITE_PACKAGES}/tbb)
-      install(TARGETS ${module_target}
-              DESTINATION ${PYTHON_SITE_PACKAGES}/tbb)
-    endif()
-
-    if(UNIX AND NOT APPLE)
-      add_library(irml SHARED python/rml/ipc_server.cpp python/rml/ipc_utils.cpp src/tbb/cache_aligned_allocator.cpp src/tbb/dynamic_link.cpp src/tbb/tbb_misc_ex.cpp src/tbb/tbb_misc.cpp)
-      target_compile_definitions(irml PRIVATE DO_ITT_NOTIFY=0 USE_PTHREAD=1)
-      target_link_libraries(irml PRIVATE tbb)
-      set_target_properties(irml PROPERTIES VERSION 1)
-      if (TBB_INSTALL_TARGETS)
-        install(TARGETS irml DESTINATION ${TBB_INSTALL_LIBRARY_DIR})
-      endif()
-    endif ()
-  endif ()
-endif ()
+install(DIRECTORY include/tbb DESTINATION include)
--- a/build_files/build_environment/patches/ffmpeg.diff
+++ b/build_files/build_environment/patches/ffmpeg.diff
@@ -68,32 +68,3 @@
 +
     return ret;
 }
--- a/libavcodec/rl.c
-+++ b/libavcodec/rl.c
-@@ -71,7 +71,7 @@ av_cold void ff_rl_init(RLTable *rl,
- av_cold void ff_rl_init_vlc(RLTable *rl, unsigned static_size)
- {
-     int i, q;
-    VLC_TYPE table[1500][2] = {{0}};
-+    VLC_TYPE (*table)[2] = av_calloc(sizeof(VLC_TYPE), 1500 * 2);
-     VLC vlc = { .table = table, .table_allocated = static_size };
-     av_assert0(static_size <= FF_ARRAY_ELEMS(table));
-     init_vlc(&vlc, 9, rl->n + 1, &rl->table_vlc[0][1], 4, 2, &rl->table_vlc[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
-@@ -80,8 +80,10 @@ av_cold void ff_rl_init_vlc(RLTable *rl, unsigned static_size)
-         int qmul = q * 2;
-         int qadd = (q - 1) | 1;
- 
-        if (!rl->rl_vlc[q])
-+        if (!rl->rl_vlc[q]){
-+            av_free(table);
-             return;
-+        }
- 
-         if (q == 0) {
-             qmul = 1;
-@@ -113,4 +115,5 @@ av_cold void ff_rl_init_vlc(RLTable *rl, unsigned static_size)
-             rl->rl_vlc[q][i].run   = run;
-         }
-     }
-+    av_free(table);
- }
--- a/build_files/build_environment/patches/haru.diff
+++ b/build_files/build_environment/patches/haru.diff
@@ -1,12 +0,0 @@
-diff --git a/src/hpdf_image_ccitt.c b/src/hpdf_image_ccitt.c
-index 8672763..9be531a 100644
--- a/src/hpdf_image_ccitt.c
-+++ b/src/hpdf_image_ccitt.c
-@@ -21,7 +21,6 @@
- #include <memory.h>
- #include <assert.h>
- 
-#define	G3CODES
- #include "t4.h"
- 
- typedef unsigned int uint32;
--- a/build_files/build_environment/patches/llvm.diff
+++ b/build_files/build_environment/patches/llvm.diff
@@ -1,5 +1,5 @@
--- a/llvm/lib/Support/Unix/Path.inc	2020-02-17 09:24:26.000000000 +0100
-+++ b/llvm/lib/Support/Unix/Path.inc	2020-02-17 09:26:25.000000000 +0100
+--- a/lib/Support/Unix/Path.inc	2020-02-17 09:24:26.000000000 +0100
+++ b/lib/Support/Unix/Path.inc	2020-02-17 09:26:25.000000000 +0100
@@ -1200,7 +1200,9 @@
 /// implementation.
 std::error_code copy_file(const Twine &From, const Twine &To) {
--- a/build_files/build_environment/patches/opencolorio.diff
+++ b/build_files/build_environment/patches/opencolorio.diff
@@ -1,16 +1,33 @@
-diff --git a/share/cmake/modules/Findpystring.cmake b/share/cmake/modules/Findpystring.cmake
-index 7b894a45..92618215 100644
--- a/share/cmake/modules/Findpystring.cmake
-+++ b/share/cmake/modules/Findpystring.cmake
-@@ -113,6 +113,11 @@ if(NOT pystring_FOUND)
-             -DCMAKE_INSTALL_MESSAGE=${CMAKE_INSTALL_MESSAGE}
-             -DCMAKE_INSTALL_PREFIX=${_EXT_DIST_ROOT}
-             -DCMAKE_OBJECT_PATH_MAX=${CMAKE_OBJECT_PATH_MAX}
-+            -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}
-+            -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}
-+            -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT}
-+            -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG}
-+            -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE}
+diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
+index 1eb691b..cff9bd8 100644
+--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
+@@ -23,8 +23,6 @@ if(WIN32)
+     if("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
+         set(EXTERNAL_COMPILE_FLAGS "${EXTERNAL_COMPILE_FLAGS} /WX")
+     endif()
+-else()
+-    set(EXTERNAL_COMPILE_FLAGS "${EXTERNAL_COMPILE_FLAGS} -Werror")
+ endif()
+ 
+ # SHARED
+--- a/CMakeLists.txt	2018-09-10 22:15:29.000000000 +0200
+++ b/CMakeLists.txt	2018-09-10 22:17:40.000000000 +0200
+@@ -229,7 +229,7 @@
+             PATCH_COMMAND   ${GIT_EXECUTABLE} apply --ignore-whitespace ${TINYXML_PATCHFILE}
+             BINARY_DIR      ext/build/tinyxml
+             INSTALL_DIR     ext/dist
+-            CMAKE_ARGS      ${TINYXML_CMAKE_ARGS}
+            CMAKE_ARGS      ${TINYXML_CMAKE_ARGS} -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES} -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET} -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT} -DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG} -DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG} -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
         )
-         if(CMAKE_TOOLCHAIN_FILE)
-             set(pystring_CMAKE_ARGS
+         if(WIN32)
+             set(TINYXML_STATIC_LIBRARIES  ${PROJECT_BINARY_DIR}/ext/dist/lib/tinyxml.lib)
+@@ -343,7 +343,7 @@
+             PATCH_COMMAND   ${GIT_EXECUTABLE} apply --ignore-whitespace ${YAML_CPP_PATCHFILE}
+             BINARY_DIR      ext/build/yaml-cpp
+             INSTALL_DIR     ext/dist
+-            CMAKE_ARGS      ${YAML_CPP_CMAKE_ARGS}
+            CMAKE_ARGS      ${YAML_CPP_CMAKE_ARGS} -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES} -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET} -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT} -DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG} -DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG} -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
+         )
+         set(YAML_CPP_INCLUDE_DIRS ${PROJECT_BINARY_DIR}/ext/dist/include)
+         set(YAML_CPP_LIBRARY_DIRS ${PROJECT_BINARY_DIR}/ext/dist/lib)
--- a/build_files/build_environment/patches/opencolorio_win.diff
+++ b/build_files/build_environment/patches/opencolorio_win.diff
@@ -0,0 +1,51 @@
+diff -Naur external_opencolorio/CMakeLists.txt external_opencolorio.patched/CMakeLists.txt
+--- external_opencolorio/CMakeLists.txt	2018-01-04 18:38:27 -0700
+++ external_opencolorio.patched/CMakeLists.txt	2018-08-15 11:46:53 -0600
+@@ -251,25 +251,30 @@
+ if(USE_EXTERNAL_YAML)
+     # Set minimum yaml version for non-patched sources.
+     set(YAML_VERSION_MIN "0.3.0")
+-    include(FindPkgConfig)
+-    pkg_check_modules(PC_YAML_CPP REQUIRED QUIET yaml-cpp)
+-    find_path(YAML_CPP_INCLUDE_DIR yaml-cpp/yaml.h
+-        HINTS  ${PC_YAML_CPP_INCLUDEDIR} ${PC_YAML_CPP_INCLUDE_DIRS} )
+-    find_library(YAML_CPP_LIBRARY LIBRARY_NAMES yaml-cpp libyaml-cpp
+-        HINTS ${PC_YAML_CPP_LIBRARY_DIRS} )
+-    set(YAML_CPP_LIBRARIES ${YAML_CPP_LIBRARY})
+-    set(YAML_CPP_INCLUDE_DIRS ${YAML_CPP_INCLUDE_DIR})
+-    set(YAML_CPP_VERSION ${PC_YAML_CPP_VERSION})
+    if(NOT WIN32)
+		include(FindPkgConfig)
+		pkg_check_modules(PC_YAML_CPP REQUIRED QUIET yaml-cpp)
+		find_path(YAML_CPP_INCLUDE_DIR yaml-cpp/yaml.h
+			HINTS  ${PC_YAML_CPP_INCLUDEDIR} ${PC_YAML_CPP_INCLUDE_DIRS} )
+		find_library(YAML_CPP_LIBRARY LIBRARY_NAMES yaml-cpp libyaml-cpp
+			HINTS ${PC_YAML_CPP_LIBRARY_DIRS} )
+		set(YAML_CPP_LIBRARIES ${YAML_CPP_LIBRARY})
+		set(YAML_CPP_INCLUDE_DIRS ${YAML_CPP_INCLUDE_DIR})
+		set(YAML_CPP_VERSION ${PC_YAML_CPP_VERSION})
+ 
+-    if(YAML_CPP_VERSION VERSION_LESS ${YAML_VERSION_MIN})
+-        message(FATAL_ERROR "ERROR: yaml-cpp ${YAML_VERSION_MIN} or greater is required.")
+-    endif()
+-
+-    find_package_handle_standard_args(yaml-cpp
+-                                      REQUIRED_VARS YAML_CPP_LIBRARIES YAML_CPP_INCLUDE_DIRS )
+-    set(YAML_CPP_FOUND ${YAML-CPP_FOUND})
+-    mark_as_advanced(YAML_CPP_INCLUDE_DIR YAML_CPP_LIBRARY YAML-CPP_FOUND)
+		if(YAML_CPP_VERSION VERSION_LESS ${YAML_VERSION_MIN})
+			message(FATAL_ERROR "ERROR: yaml-cpp ${YAML_VERSION_MIN} or greater is required.")
+		endif()
+ 
+		find_package_handle_standard_args(yaml-cpp
+										  REQUIRED_VARS YAML_CPP_LIBRARIES YAML_CPP_INCLUDE_DIRS )
+		set(YAML_CPP_FOUND ${YAML-CPP_FOUND})
+		mark_as_advanced(YAML_CPP_INCLUDE_DIR YAML_CPP_LIBRARY YAML-CPP_FOUND)
+	else()
+		set(EXTERNAL_INCLUDE_DIRS ${EXTERNAL_INCLUDE_DIRS} ${INC_1})
+		set(EXTERNAL_INCLUDE_DIRS ${EXTERNAL_INCLUDE_DIRS} ${INC_2})
+		message("INCLUDE DIRS = i:${EXTERNAL_INCLUDE_DIRS} |1:${INC_1} |2:${INC_2}")
+	endif()
+     if(YAML_CPP_FOUND)
+         if(YAML_CPP_VERSION VERSION_GREATER "0.5.0")
+             # Need to also get the boost headers here, as yaml-cpp 0.5.0+ requires them.
--- a/build_files/build_environment/patches/openvdb.diff
+++ b/build_files/build_environment/patches/openvdb.diff
@@ -1,10 +1,10 @@
-diff -Naur openvdb-8.0.0/cmake/FindIlmBase.cmake openvdb/cmake/FindIlmBase.cmake
--- openvdb-8.0.0/cmake/FindIlmBase.cmake	2020-12-24 10:13:14 -0700
-+++ openvdb/cmake/FindIlmBase.cmake	2021-02-05 12:07:49 -0700
-@@ -217,6 +217,12 @@
-     set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib")
-   endif()
-   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES "${_IlmBase_Version_Suffix}.lib")
+diff -Naur orig/cmake/FindIlmBase.cmake openvdb/cmake/FindIlmBase.cmake
+--- orig/cmake/FindIlmBase.cmake	2019-12-06 12:11:33 -0700
+++ openvdb/cmake/FindIlmBase.cmake	2020-08-12 12:48:44 -0600
+@@ -225,6 +225,12 @@
+   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
+     "-${IlmBase_VERSION_MAJOR}_${IlmBase_VERSION_MINOR}.lib"
+   )
 +  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
 +    "_s.lib"
 +  )
@@ -13,14 +13,14 @@ diff -Naur openvdb-8.0.0/cmake/FindIlmBase.cmake openvdb/cmake/FindIlmBase.cmake
 +  )
 else()
   if(ILMBASE_USE_STATIC_LIBS)
-     set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
-diff -Naur openvdb-8.0.0/cmake/FindOpenEXR.cmake openvdb/cmake/FindOpenEXR.cmake
--- openvdb-8.0.0/cmake/FindOpenEXR.cmake	2020-12-24 10:13:14 -0700
-+++ openvdb/cmake/FindOpenEXR.cmake	2021-02-05 12:23:39 -0700
-@@ -210,6 +210,12 @@
-     set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib")
-   endif()
-   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES "${_OpenEXR_Version_Suffix}.lib")
+     list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
+diff -Naur orig/cmake/FindOpenEXR.cmake openvdb/cmake/FindOpenEXR.cmake
+--- orig/cmake/FindOpenEXR.cmake	2019-12-06 12:11:33 -0700
+++ openvdb/cmake/FindOpenEXR.cmake	2020-08-12 12:48:44 -0600
+@@ -218,6 +218,12 @@
+   list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
+     "-${OpenEXR_VERSION_MAJOR}_${OpenEXR_VERSION_MINOR}.lib"
+   )
 +  list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
 +    "_s.lib"
 +  )
@@ -29,11 +29,11 @@ diff -Naur openvdb-8.0.0/cmake/FindOpenEXR.cmake openvdb/cmake/FindOpenEXR.cmake
 +  )
 else()
   if(OPENEXR_USE_STATIC_LIBS)
-     set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
-diff -Naur openvdb-8.0.0/openvdb/openvdb/CMakeLists.txt openvdb/openvdb/openvdb/CMakeLists.txt
--- openvdb-8.0.0/openvdb/openvdb/CMakeLists.txt	2020-12-24 10:13:14 -0700
-+++ openvdb/openvdb/openvdb/CMakeLists.txt	2021-02-05 11:18:33 -0700
-@@ -107,7 +107,9 @@
+     list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES
+diff -Naur orig/openvdb/CMakeLists.txt openvdb/openvdb/CMakeLists.txt
+--- orig/openvdb/CMakeLists.txt	2019-12-06 12:11:33 -0700
+++ openvdb/openvdb/CMakeLists.txt	2020-08-12 14:12:26 -0600
+@@ -105,7 +105,9 @@
   #        http://boost.2283326.n4.nabble.com/CMake-config-scripts-broken-in-1-70-td4708957.html
   #        https://github.com/boostorg/boost_install/commit/160c7cb2b2c720e74463865ef0454d4c4cd9ae7c
   set(BUILD_SHARED_LIBS ON)
@@ -44,15 +44,15 @@ diff -Naur openvdb-8.0.0/openvdb/openvdb/CMakeLists.txt openvdb/openvdb/openvdb/
 endif()
 
 find_package(Boost ${MINIMUM_BOOST_VERSION} REQUIRED COMPONENTS iostreams system)
-@@ -146,6 +148,7 @@
-         Boost::disable_autolinking  # add -DBOOST_ALL_NO_LIB
-       )
+@@ -193,6 +195,7 @@
+   if(OPENVDB_DISABLE_BOOST_IMPLICIT_LINKING)
+     add_definitions(-DBOOST_ALL_NO_LIB)
   endif()
 +  add_definitions(-D__TBB_NO_IMPLICIT_LINKAGE -DOPENVDB_OPENEXR_STATICLIB)
 endif()
 
- if(USE_EXR)
-@@ -379,7 +382,12 @@
+ # @todo Should be target definitions
+@@ -383,7 +386,12 @@
 # imported targets.
 
 if(OPENVDB_CORE_SHARED)
@@ -66,9 +66,9 @@ diff -Naur openvdb-8.0.0/openvdb/openvdb/CMakeLists.txt openvdb/openvdb/openvdb/
 endif()
 
 if(OPENVDB_CORE_STATIC)
-diff -Naur openvdb-8.0.0/openvdb/openvdb/version.rc.in openvdb/openvdb/openvdb/version.rc.in
--- openvdb-8.0.0/openvdb/openvdb/version.rc.in	1969-12-31 17:00:00 -0700
-+++ openvdb/openvdb/openvdb/version.rc.in	2021-02-05 11:18:33 -0700
+diff -Naur orig/openvdb/version.rc.in openvdb/openvdb/version.rc.in
+--- orig/openvdb/version.rc.in	1969-12-31 17:00:00 -0700
+++ openvdb/openvdb/version.rc.in	2020-08-12 14:15:01 -0600
@@ -0,0 +1,48 @@
 +#include <winver.h>
 +
--- a/build_files/build_environment/patches/osl.diff
+++ b/build_files/build_environment/patches/osl.diff
@@ -1,3 +1,18 @@
+diff -Naur OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake.rej external_osl/src/cmake/flexbison.cmake.rej
+--- OpenShadingLanguage-Release-1.9.9/src/cmake/flexbison.cmake.rej	1969-12-31 17:00:00 -0700
+++ external_osl/src/cmake/flexbison.cmake.rej	2018-08-24 17:42:11 -0600
+@@ -0,0 +1,11 @@
+--- src/cmake/flexbison.cmake	2018-05-01 16:39:02 -0600
++++ src/cmake/flexbison.cmake	2018-08-24 10:24:03 -0600
+@@ -77,7 +77,7 @@
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
+         ADD_CUSTOM_COMMAND ( OUTPUT ${flexoutputcxx} 
+-          COMMAND ${FLEX_EXECUTABLE} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
++          COMMAND ${FLEX_EXECUTABLE} ${FLEX_EXTRA_OPTIONS} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
+           MAIN_DEPENDENCY ${flexsrc}
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
 diff -Naur OpenShadingLanguage-Release-1.9.9/src/include/OSL/llvm_util.h external_osl/src/include/OSL/llvm_util.h
 --- OpenShadingLanguage-Release-1.9.9/src/include/OSL/llvm_util.h	2018-05-01 16:39:02 -0600
 +++ external_osl/src/include/OSL/llvm_util.h	2018-08-25 14:05:00 -0600
@@ -28,70 +43,27 @@ diff -Naur OpenShadingLanguage-Release-1.9.9/src/liboslexec/llvm_util.cpp extern
 -
 +void LLVM_Util::Cleanup ()
 +{
-+       if(jitmm_hold) jitmm_hold->clear();
+       jitmm_hold.clear();
 +}
 
 size_t
 LLVM_Util::total_jit_memory_held ()
-diff -Naur org/CMakeLists.txt external_osl/CMakeLists.txt
--- org/CMakeLists.txt  2020-12-01 12:37:15 -0700
-+++ external_osl/CMakeLists.txt 2021-01-20 13:26:50 -0700
-@@ -84,6 +84,11 @@
-      CACHE STRING "Directory where OptiX PTX files will be installed")
- set (CMAKE_DEBUG_POSTFIX "" CACHE STRING "Library naming postfix for Debug builds (e.g., '_debug')")
-
+diff -Naur OpenShadingLanguage-Release-1.9.9/CMakeLists.txt external_osl/CMakeLists.txt
+ --- orig/CMakeLists.txt	2020-01-27 16:22:31 -0700
+++ external_osl/CMakeLists.txt	2020-05-13 18:04:52 -0600
+@@ -102,10 +102,11 @@
+ set (OPTIX_EXTRA_LIBS CACHE STRING "Extra lib targets needed for OptiX")
+ set (CUDA_TARGET_ARCH "sm_35" CACHE STRING "CUDA GPU architecture (e.g. sm_35)")
+ 
+-# set (USE_OIIO_STATIC ON CACHE BOOL "If OIIO is built static")
+-# if (USE_OIIO_STATIC)
+-#     add_definitions ("-DOIIO_STATIC_BUILD=1")
+-# endif ()
 +set (USE_OIIO_STATIC ON CACHE BOOL "If OIIO is built static")
 +if (USE_OIIO_STATIC)
 +    add_definitions ("-DOIIO_STATIC_BUILD=1")
 +    add_definitions ("-DOIIO_STATIC_DEFINE=1")
 +endif ()
-
+ 
 set (OSL_NO_DEFAULT_TEXTURESYSTEM OFF CACHE BOOL "Do not use create a raw OIIO::TextureSystem")
- if (OSL_NO_DEFAULT_TEXTURESYSTEM)
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 990f50d69..46ef7351d 100644
--- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -252,11 +252,9 @@ install (EXPORT OSL_EXPORTED_TARGETS
-         FILE ${OSL_TARGETS_EXPORT_NAME}
-         NAMESPACE ${PROJECT_NAME}::)
- 
-
-
-
-osl_add_all_tests()
-
-+if (${PROJECT_NAME}_BUILD_TESTS AND NOT ${PROJECT_NAME}_IS_SUBPROJECT)
-+	osl_add_all_tests()
-+endif ()
- 
- if (NOT ${PROJECT_NAME}_IS_SUBPROJECT)
-     include (packaging)
-diff -Naur external_osl_orig/src/cmake/externalpackages.cmake external_osl/src/cmake/externalpackages.cmake
--- external_osl_orig/src/cmake/externalpackages.cmake  2021-06-01 13:44:18 -0600
-+++ external_osl/src/cmake/externalpackages.cmake       2021-06-28 07:44:32 -0600
-@@ -80,6 +80,7 @@
-
-
- checked_find_package (ZLIB REQUIRED)  # Needed by several packages
-+checked_find_package (PNG REQUIRED)  # Needed since OIIO needs it
-
- # IlmBase & OpenEXR
- checked_find_package (OpenEXR REQUIRED
-diff -Naur external_osl_orig/src/liboslcomp/oslcomp.cpp external_osl/src/liboslcomp/oslcomp.cpp
--- external_osl_orig/src/liboslcomp/oslcomp.cpp        2021-06-01 13:44:18 -0600
-+++ external_osl/src/liboslcomp/oslcomp.cpp     2021-06-28 09:11:06 -0600
-@@ -21,6 +21,13 @@
- #if !defined(__STDC_CONSTANT_MACROS)
- #    define __STDC_CONSTANT_MACROS 1
- #endif
-+
-+// clang uses CALLBACK in its templates which causes issues if it is already defined
-+#ifdef _WIN32 && defined(CALLBACK)
-+#    undef CALLBACK
-+#endif
-+
-+//
- #include <clang/Basic/TargetInfo.h>
- #include <clang/Frontend/CompilerInstance.h>
- #include <clang/Frontend/TextDiagnosticPrinter.h>
+ if (OSL_NO_DEFAULT_TEXTURESYSTEM)
--- a/build_files/build_environment/patches/python_linux.diff
+++ b/build_files/build_environment/patches/python_linux.diff
@@ -2,23 +2,23 @@ diff --git a/setup.py.orig b/setup.py
 index a97a755..07ce853 100644
 --- a/setup.py.orig
 +++ b/setup.py
-@@ -1603,13 +1603,13 @@
+@@ -1422,13 +1422,13 @@ class PyBuildExt(build_ext):
                         version = line.split()[2]
                         break
             if version >= version_req:
-                if (self.compiler.find_library_file(self.lib_dirs, 'z')):
-+                if (self.compiler.find_library_file(self.lib_dirs, 'z_pic')):
-                     if MACOS:
+-                if (self.compiler.find_library_file(lib_dirs, 'z')):
+                if (self.compiler.find_library_file(lib_dirs, 'z_pic')):
+                     if host_platform == "darwin":
                         zlib_extra_link_args = ('-Wl,-search_paths_first',)
                     else:
                         zlib_extra_link_args = ()
-                     self.add(Extension('zlib', ['zlibmodule.c'],
-                                       libraries=['z'],
-+                                       libraries=['z_pic'],
-                                        extra_link_args=zlib_extra_link_args))
+                     exts.append( Extension('zlib', ['zlibmodule.c'],
+-                                           libraries = ['z'],
+                                           libraries = ['z_pic'],
+                                            extra_link_args = zlib_extra_link_args))
                     have_zlib = True
                 else:
-@@ -1623,7 +1623,7 @@
+@@ -1442,7 +1442,7 @@ class PyBuildExt(build_ext):
         # crc32 if we have it.  Otherwise binascii uses its own.
         if have_zlib:
             extra_compile_args = ['-DUSE_ZLIB_CRC32']
@@ -27,12 +27,12 @@ index a97a755..07ce853 100644
             extra_link_args = zlib_extra_link_args
         else:
             extra_compile_args = []
-@@ -2168,7 +2168,7 @@
-                 ffi_inc = None
+@@ -1991,7 +1991,7 @@ class PyBuildExt(build_ext):
                 print('Header file {} does not exist'.format(ffi_h))
-         if ffi_lib is None and ffi_inc:
+         ffi_lib = None
+         if ffi_inc is not None:
 -            for lib_name in ('ffi', 'ffi_pic'):
 +            for lib_name in ('ffi_pic', ):
-                 if (self.compiler.find_library_file(self.lib_dirs, lib_name)):
+                 if (self.compiler.find_library_file(lib_dirs, lib_name)):
                     ffi_lib = lib_name
                     break
--- a/build_files/build_environment/patches/python_macos.diff
+++ b/build_files/build_environment/patches/python_macos.diff
@@ -0,0 +1,289 @@
+diff -ru a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
+--- a/Doc/library/ctypes.rst	2020-03-10 07:11:12.000000000 +0100
+++ b/Doc/library/ctypes.rst	2020-07-14 08:10:10.000000000 +0200
+@@ -1551,6 +1551,13 @@
+       value usable as argument (integer, string, ctypes instance).  This allows
+       defining adapters that can adapt custom objects as function parameters.
+ 
+   .. attribute:: variadic
+
+      Assign a boolean to specify that the function takes a variable number of
+      arguments.   This does not matter on most platforms, but for Apple arm64
+      platforms variadic functions have a different calling convention than
+      normal functions.
+
+    .. attribute:: errcheck
+ 
+       Assign a Python function or another callable to this attribute. The
+diff -ru a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
+--- a/Modules/_ctypes/_ctypes.c	2020-03-10 07:11:12.000000000 +0100
+++ b/Modules/_ctypes/_ctypes.c	2020-07-14 08:14:41.000000000 +0200
+@@ -3175,6 +3175,35 @@
+ }
+ 
+ static int
+PyCFuncPtr_set_variadic(PyCFuncPtrObject *self, PyObject *ob, void *Py_UNUSED(ignored))
+{
+    StgDictObject *dict = PyObject_stgdict((PyObject *)self);
+    assert(dict);
+    int r = PyObject_IsTrue(ob);
+    if (r == 1) {
+        dict->flags |= FUNCFLAG_VARIADIC;
+        return 0;
+    } else if (r == 0) {
+        dict->flags &= ~FUNCFLAG_VARIADIC;
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+static PyObject *
+PyCFuncPtr_get_variadic(PyCFuncPtrObject *self, void *Py_UNUSED(ignored))
+{
+    StgDictObject *dict = PyObject_stgdict((PyObject *)self);
+    assert(dict); /* Cannot be NULL for PyCFuncPtrObject instances */
+    if (dict->flags & FUNCFLAG_VARIADIC)
+        Py_RETURN_TRUE;
+    else
+        Py_RETURN_FALSE;
+}
+
+
+static int
+ PyCFuncPtr_set_argtypes(PyCFuncPtrObject *self, PyObject *ob, void *Py_UNUSED(ignored))
+ {
+     PyObject *converters;
+@@ -5632,6 +5661,7 @@
+     PyModule_AddObject(m, "FUNCFLAG_USE_ERRNO", PyLong_FromLong(FUNCFLAG_USE_ERRNO));
+     PyModule_AddObject(m, "FUNCFLAG_USE_LASTERROR", PyLong_FromLong(FUNCFLAG_USE_LASTERROR));
+     PyModule_AddObject(m, "FUNCFLAG_PYTHONAPI", PyLong_FromLong(FUNCFLAG_PYTHONAPI));
+    PyModule_AddObject(m, "FUNCFLAG_VARIADIC", PyLong_FromLong(FUNCFLAG_VARIADIC));
+     PyModule_AddStringConstant(m, "__version__", "1.1.0");
+ 
+     PyModule_AddObject(m, "_memmove_addr", PyLong_FromVoidPtr(memmove));
+diff -ru a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
+--- a/Modules/_ctypes/callproc.c	2020-03-10 07:11:12.000000000 +0100
+++ b/Modules/_ctypes/callproc.c	2020-07-14 08:18:33.000000000 +0200
+@@ -767,7 +767,8 @@
+                                   ffi_type **atypes,
+                                   ffi_type *restype,
+                                   void *resmem,
+-                                  int argcount)
+                                  int argcount,
+                                  int argtypecount)
+ {
+     PyThreadState *_save = NULL; /* For Py_BLOCK_THREADS and Py_UNBLOCK_THREADS */
+     PyObject *error_object = NULL;
+@@ -793,15 +794,38 @@
+     if ((flags & FUNCFLAG_CDECL) == 0)
+         cc = FFI_STDCALL;
+ #endif
+-    if (FFI_OK != ffi_prep_cif(&cif,
+-                               cc,
+-                               argcount,
+-                               restype,
+-                               atypes)) {
+-        PyErr_SetString(PyExc_RuntimeError,
+-                        "ffi_prep_cif failed");
+-        return -1;
+-    }
+#if HAVE_FFI_PREP_CIF_VAR
+    /* Everyone SHOULD set f.variadic=True on variadic function pointers, but
+     * lots of existing code will not.  If there's at least one arg and more
+     * args are passed than are defined in the prototype, then it must be a
+     * variadic function. */
+    if ((flags & FUNCFLAG_VARIADIC) ||
+        (argtypecount != 0 && argcount > argtypecount))
+    {
+        if (FFI_OK != ffi_prep_cif_var(&cif,
+                                       cc,
+                                       argtypecount,
+                                       argcount,
+                                       restype,
+                                       atypes)) {
+            PyErr_SetString(PyExc_RuntimeError,
+                            "ffi_prep_cif_var failed");
+            return -1;
+        }
+    } else {
+#endif
+        if (FFI_OK != ffi_prep_cif(&cif,
+                                   cc,
+                                   argcount,
+                                   restype,
+                                   atypes)) {
+            PyErr_SetString(PyExc_RuntimeError,
+                            "ffi_prep_cif failed");
+            return -1;
+        }
+#if HAVE_FFI_PREP_CIF_VAR
+     }
+#endif
+ 
+     if (flags & (FUNCFLAG_USE_ERRNO | FUNCFLAG_USE_LASTERROR)) {
+         error_object = _ctypes_get_errobj(&space);
+@@ -1185,9 +1209,8 @@
+ 
+     if (-1 == _call_function_pointer(flags, pProc, avalues, atypes,
+                                      rtype, resbuf,
+-                                     Py_SAFE_DOWNCAST(argcount,
+-                                                      Py_ssize_t,
+-                                                      int)))
+                                     Py_SAFE_DOWNCAST(argcount, Py_ssize_t, int),
+                                     Py_SAFE_DOWNCAST(argtype_count, Py_ssize_t, int)))
+         goto cleanup;
+ 
+ #ifdef WORDS_BIGENDIAN
+diff -ru a/Modules/_ctypes/ctypes.h b/Modules/_ctypes/ctypes.h
+--- a/Modules/_ctypes/ctypes.h	2020-03-10 07:11:12.000000000 +0100
+++ b/Modules/_ctypes/ctypes.h	2020-07-14 08:30:53.000000000 +0200
+@@ -285,6 +285,7 @@
+ #define FUNCFLAG_PYTHONAPI 0x4
+ #define FUNCFLAG_USE_ERRNO 0x8
+ #define FUNCFLAG_USE_LASTERROR 0x10
+#define FUNCFLAG_VARIADIC 0x20
+ 
+ #define TYPEFLAG_ISPOINTER 0x100
+ #define TYPEFLAG_HASPOINTER 0x200
+diff -ru a/configure b/configure
+--- a/configure	2020-03-10 07:11:12.000000000 +0100
+++ b/configure	2020-07-14 08:03:27.000000000 +0200
+@@ -3374,7 +3374,7 @@
+   # has no effect, don't bother defining them
+   Darwin/[6789].*)
+     define_xopen_source=no;;
+-  Darwin/1[0-9].*)
+  Darwin/[12][0-9].*)
+     define_xopen_source=no;;
+   # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
+   # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
+@@ -9251,6 +9251,9 @@
+     	ppc)
+     		MACOSX_DEFAULT_ARCH="ppc64"
+     		;;
+        arm64)
+            MACOSX_DEFAULT_ARCH="arm64"
+            ;;
+     	*)
+     		as_fn_error $? "Unexpected output of 'arch' on OSX" "$LINENO" 5
+     		;;
+diff -ru a/configure.ac b/configure.ac
+--- a/configure.ac	2020-03-10 07:11:12.000000000 +0100
+++ b/configure.ac	2020-07-14 08:03:27.000000000 +0200
+@@ -2456,6 +2456,9 @@
+     	ppc)
+     		MACOSX_DEFAULT_ARCH="ppc64"
+     		;;
+        arm64)
+            MACOSX_DEFAULT_ARCH="arm64"
+            ;;
+     	*)
+     		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
+     		;;
+diff -ru a/setup.py b/setup.py
+--- a/setup.py	2020-03-10 07:11:12.000000000 +0100
+++ b/setup.py	2020-07-14 08:28:12.000000000 +0200
+@@ -141,6 +141,13 @@
+             os.unlink(tmpfile)
+ 
+     return MACOS_SDK_ROOT
+ 
+def is_macosx_at_least(vers):
+    if host_platform == 'darwin':
+        dep_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
+        if dep_target:
+            return tuple(map(int, dep_target.split('.'))) >= vers
+    return False
+ 
+ def is_macosx_sdk_path(path):
+     """
+@@ -150,6 +157,13 @@
+                 or path.startswith('/System/')
+                 or path.startswith('/Library/') )
+ 
+def grep_headers_for(function, headers):
+    for header in headers:
+        with open(header, 'r') as f:
+            if function in f.read():
+                return True
+    return False
+
+ def find_file(filename, std_dirs, paths):
+     """Searches for the directory where a given file is located,
+     and returns a possibly-empty list of additional directories, or None
+@@ -1972,7 +1986,11 @@
+         return True
+ 
+     def detect_ctypes(self, inc_dirs, lib_dirs):
+-        self.use_system_libffi = False
+        if not sysconfig.get_config_var("LIBFFI_INCLUDEDIR") and is_macosx_at_least((10,15)):
+            self.use_system_libffi = True
+        else:
+            self.use_system_libffi = '--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS")
+
+         include_dirs = []
+         extra_compile_args = []
+         extra_link_args = []
+@@ -2016,32 +2034,48 @@
+         ext_test = Extension('_ctypes_test',
+                      sources=['_ctypes/_ctypes_test.c'],
+                      libraries=['m'])
+        ffi_inc = sysconfig.get_config_var("LIBFFI_INCLUDEDIR")
+        ffi_lib = None
+
+         self.extensions.extend([ext, ext_test])
+ 
+         if host_platform == 'darwin':
+-            if '--with-system-ffi' not in sysconfig.get_config_var("CONFIG_ARGS"):
+            if not self.use_system_libffi:
+                 return
+-            # OS X 10.5 comes with libffi.dylib; the include files are
+-            # in /usr/include/ffi
+-            inc_dirs.append('/usr/include/ffi')
+-
+-        ffi_inc = [sysconfig.get_config_var("LIBFFI_INCLUDEDIR")]
+-        if not ffi_inc or ffi_inc[0] == '':
+-            ffi_inc = find_file('ffi.h', [], inc_dirs)
+-        if ffi_inc is not None:
+-            ffi_h = ffi_inc[0] + '/ffi.h'
+            ffi_in_sdk = os.path.join(macosx_sdk_root(), "usr/include/ffi")
+            if os.path.exists(ffi_in_sdk):
+                ffi_inc = ffi_in_sdk
+                ffi_lib = 'ffi'
+            else:
+                # OS X 10.5 comes with libffi.dylib; the include files are
+                # in /usr/include/ffi
+                ffi_inc_dirs.append('/usr/include/ffi')
+
+        if not ffi_inc:
+            found = find_file('ffi.h', [], ffi_inc_dirs)
+            if found:
+                ffi_inc = found[0]
+        if ffi_inc:
+            ffi_h = ffi_inc + '/ffi.h'
+             if not os.path.exists(ffi_h):
+                 ffi_inc = None
+                 print('Header file {} does not exist'.format(ffi_h))
+-        ffi_lib = None
+-        if ffi_inc is not None:
+        if ffi_lib is None and ffi_inc:
+             for lib_name in ('ffi', 'ffi_pic'):
+                 if (self.compiler.find_library_file(lib_dirs, lib_name)):
+                     ffi_lib = lib_name
+                     break
+ 
+         if ffi_inc and ffi_lib:
+-            ext.include_dirs.extend(ffi_inc)
+            ffi_headers = glob(os.path.join(ffi_inc, '*.h'))
+            if grep_headers_for('ffi_closure_alloc', ffi_headers):
+                try:
+                    sources.remove('_ctypes/malloc_closure.c')
+                except ValueError:
+                    pass
+            if grep_headers_for('ffi_prep_cif_var', ffi_headers):
+                ext.extra_compile_args.append("-DHAVE_FFI_PREP_CIF_VAR=1")
+            ext.include_dirs.append(ffi_inc)
+             ext.libraries.append(ffi_lib)
+             self.use_system_libffi = True
+ 
--- a/Show More
+++ b/Show More