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Clang/Windows: Use ThinLTO if possible to match other platforms

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Fixes #22905.
This commit is contained in:
Raul Tambre
2021-11-14 15:05:25 +02:00
parent b31e60e76d
commit 3155b23260
1 changed files with 6 additions and 1 deletions
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7
Modules/Platform/Windows-Clang.cmake
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@@ -56,7 +56,12 @@ macro(__windows_compiler_clang_gnu lang)
set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_INCLUDES 1)
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto")
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 3.9)
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto=thin")
else()
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto")
endif()
set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
set(CMAKE_${lang}_ARCHIVE_CREATE_IPO "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>")