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Use the gold linker if available

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The big reason to do this is that the gold linker doesn't complain about
_sys_nerr and _sys_errlist.
This commit is contained in:
ridiculousfish 2019-09-14 15:07:48 -07:00
parent 5afcc439a5
commit 5f6ee7f30f
1 changed files with 9 additions and 0 deletions
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9
CMakeLists.txt
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@ -47,6 +47,15 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra \
# Disable exception handling.
ADD_COMPILE_OPTIONS(-fno-exceptions)
# Prefer the gold linker because it doesn't emit useless warnings about sys_nerr and _sys_errlist.
if (UNIX AND NOT APPLE)
EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version
ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if ("${LD_VERSION}" MATCHES "GNU gold")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold")
endif()
endif()
# Hide the CMake Rules directories in Xcode projects.
SOURCE_GROUP("CMake Rules" REGULAR_EXPRESSION "^$")