Blender build data

blender-build/build_environment/cmake/aom.cmake

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+if(WIN32)
+  # The default generator on windows is msbuild, which we do not
+  # want to use for this dep, as needs to build with mingw
+  set(AOM_GENERATOR "Ninja")
+  # The default flags are full of MSVC options given this will be
+  # building with mingw, it'll have an unhappy time with that and
+  # we need to clear them out.
+  set(AOM_CMAKE_FLAGS )
+else()
+  set(AOM_GENERATOR "Unix Makefiles")
+  set(AOM_CMAKE_FLAGS ${DEFAULT_CMAKE_FLAGS})
+endif()
+
+set(AOM_EXTRA_ARGS
+  -DENABLE_TESTDATA=OFF
+  -DENABLE_TESTS=OFF
+  -DENABLE_TOOLS=OFF
+  -DENABLE_EXAMPLES=OFF
+  ${AOM_EXTRA_ARGS_WIN32}
+)
+
+# This is slightly different from all other deps in the way that
+# aom uses cmake as a build system, but still needs the environment setup
+# to include perl so we manually setup the environment and call
+# cmake directly for the configure, build and install commands.
+
+ExternalProject_Add(external_aom
+  URL file://${PACKAGE_DIR}/${AOM_FILE}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH ${AOM_HASH_TYPE}=${AOM_HASH}
+  PREFIX ${BUILD_DIR}/aom
+  PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/aom/src/external_aom < ${PATCH_DIR}/aom.diff
+  CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
+    cd ${BUILD_DIR}/aom/src/external_aom-build/ &&
+    ${CMAKE_COMMAND} -G "${AOM_GENERATOR}" -DCMAKE_INSTALL_PREFIX=${LIBDIR}/aom ${AOM_CMAKE_FLAGS} ${AOM_EXTRA_ARGS} ${BUILD_DIR}/aom/src/external_aom/
+  BUILD_COMMAND ${CMAKE_COMMAND} --build .
+  INSTALL_COMMAND ${CMAKE_COMMAND} --build . --target install
+  INSTALL_DIR ${LIBDIR}/aom
+)