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CMake: Use GNU gold linker if available (to speedup the build)

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This commit is contained in:
Alexander Akulich 2022-05-07 12:30:51 +03:00
parent 9e8c97c812
commit f1baf2dc52
1 changed files with 17 additions and 0 deletions
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17
CMakeLists.txt
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@ -280,6 +280,23 @@ if(NOT MSVC AND NOT HAIKU)
# add_c_compiler_flag_if_supported(OUR_FLAGS_OWN -Wuseless-cast) # TODO: Enable for C++ code except gtest
endif()
if(UNIX AND NOT APPLE)
# This can be disabled by configuring with -DUSE_GOLD=FALSE
if(NOT DEFINED USE_GOLD)
execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version ERROR_QUIET OUTPUT_VARIABLE ld_version)
if("${ld_version}" MATCHES "GNU gold")
set(USE_GOLD TRUE CACHE BOOL "Use GNU gold linker")
else()
set(USE_GOLD FALSE CACHE BOOL "Use GNU gold linker")
endif()
endif()
message(STATUS "GNU gold linker enabled: ${USE_GOLD}")
if(USE_GOLD)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags")
endif()
endif()
if(MSVC)
if(EXCEPTION_HANDLING)
add_c_compiler_flag_if_supported(OUR_FLAGS /DCONF_EXCEPTION_HANDLING)