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CMake: Add option to enable LTO

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This commit is contained in:
Jonathan G Rennison
2023-02-20 21:11:30 +00:00
parent c1532107fc
commit 86979dd167
1 changed files with 11 additions and 0 deletions
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11
cmake/CompileFlags.cmake
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@@ -181,6 +181,17 @@ macro(compile_flags)
endif() endif()
endif(OPTION_COMPRESS_DEBUG) endif(OPTION_COMPRESS_DEBUG)
if(OPTION_LTO)
include(CheckCXXCompilerFlag)
check_cxx_compiler_flag("-flto" LTO_FOUND)
if(LTO_FOUND)
# Enable LTO.
add_compile_options(-flto)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
endif()
endif(OPTION_LTO)
if (OPTION_NO_WARN_UNINIT) if (OPTION_NO_WARN_UNINIT)
add_compile_options(-Wno-maybe-uninitialized -Wno-uninitialized) add_compile_options(-Wno-maybe-uninitialized -Wno-uninitialized)
endif (OPTION_NO_WARN_UNINIT) endif (OPTION_NO_WARN_UNINIT)