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[BB PR #34] feat(build): add support for CMake <3.2 #865

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[BB PR #34] feat(build): add support for CMake <3.2 #865

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849c75e
feat(build): add support for CMake <3.2
git-developer May 11, 2025
dddf66f
feat(build): add support for gcc <12
git-developer May 11, 2025
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6 changes: 4 additions & 2 deletions source/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -103,8 +103,10 @@ elseif(ARM64MATCH GREATER "-1")
# Neon I8MM is mandatory from Armv8.6.
set(AARCH64_NEON_I8MM_FLAG "-march=armv8.2-a+dotprod+i8mm")
set(AARCH64_SVE_FLAG "-march=armv8.2-a+dotprod+i8mm+sve")
# SVE2 is only available from Armv9.0, and armv9-a implies +dotprod and +sve.
set(AARCH64_SVE2_FLAG "-march=armv9-a+i8mm+sve2")
if((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 12) OR (CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 12))
# SVE2 is only available from Armv9.0, and armv9-a implies +dotprod and +sve.
set(AARCH64_SVE2_FLAG "-march=armv9-a+i8mm+sve2")
endif()
else()
message(STATUS "CMAKE_SYSTEM_PROCESSOR value `${CMAKE_SYSTEM_PROCESSOR}` is unknown")
message(STATUS "Please add this value near ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE}")
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2 changes: 1 addition & 1 deletion source/cmake/Version.cmake
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Expand Up @@ -126,7 +126,7 @@ elseif(GIT_ARCHETYPE)
#for x265 the repository changeset has to be a tag id or commit id after the tag
#hence mandating it's presence in version file always for valid tag distances.
if(DEFINED git_repositorychangeset)
string(SUBSTRING "${git_repositorychangeset}" 0 9 X265_REVISION_ID)
string(REGEX MATCH "^.{1,9}" X265_REVISION_ID "${git_repositorychangeset}")
else()
message(WARNING "X265 LATEST COMMIT TIP INFORMATION NOT AVAILABLE")
endif()
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