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properly select linker for modern clang compilers

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This commit is contained in:
Axel Kohlmeyer
2025-05-15 04:02:44 -04:00
parent 9abb171d05
commit 2b7c05c057
1 changed files with 17 additions and 17 deletions
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34
cmake/Modules/Testing.cmake
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@ -21,22 +21,15 @@ if(ENABLE_TESTING)
# also only verified with Fedora Linux > 30 and Ubuntu 18.04 or 22.04+(Ubuntu 20.04 fails)
if((CMAKE_SYSTEM_NAME STREQUAL "Linux")
AND ((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")))
if(((CMAKE_LINUX_DISTRO STREQUAL "Ubuntu") AND
((CMAKE_DISTRO_VERSION VERSION_LESS_EQUAL 18.04) OR (CMAKE_DISTRO_VERSION VERSION_GREATER_EQUAL 22.04)))
if(((CMAKE_LINUX_DISTRO STREQUAL "Ubuntu") AND (CMAKE_DISTRO_VERSION VERSION_GREATER_EQUAL 22.04))
OR ((CMAKE_LINUX_DISTRO STREQUAL "Fedora") AND (CMAKE_DISTRO_VERSION VERSION_GREATER 30)))
include(CheckCXXCompilerFlag)
set(CMAKE_CUSTOM_LINKER_DEFAULT default)
if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 19.9))
check_cxx_compiler_flag(--ld-path=mold HAVE_MOLD_LINKER_FLAG)
check_cxx_compiler_flag(--ld-path=lld HAVE_LLD_LINKER_FLAG)
check_cxx_compiler_flag(--ld-path=gold HAVE_GOLD_LINKER_FLAG)
check_cxx_compiler_flag(--ld-path=bfd HAVE_BFD_LINKER_FLAG)
else()
check_cxx_compiler_flag(-fuse-ld=mold HAVE_MOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=lld HAVE_LLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=gold HAVE_GOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=bfd HAVE_BFD_LINKER_FLAG)
endif()
check_cxx_compiler_flag(--ld-path=${CMAKE_LINKER} HAVE_LD_PATH_FLAG)
check_cxx_compiler_flag(-fuse-ld=mold HAVE_MOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=lld HAVE_LLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=gold HAVE_GOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=bfd HAVE_BFD_LINKER_FLAG)
find_program(HAVE_MOLD_LINKER_BIN ld.mold)
find_program(HAVE_LLD_LINKER_BIN lld ld.lld)
find_program(HAVE_GOLD_LINKER_BIN ld.gold)
@ -55,10 +48,17 @@ if(ENABLE_TESTING)
validate_option(CMAKE_CUSTOM_LINKER CMAKE_CUSTOM_LINKER_VALUES)
mark_as_advanced(CMAKE_CUSTOM_LINKER)
if(NOT "${CMAKE_CUSTOM_LINKER}" STREQUAL "default")
if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 19.9))
target_link_options(lammps PUBLIC --ld-path=${CMAKE_CUSTOM_LINKER})
else()
target_link_options(lammps PUBLIC -fuse-ld=${CMAKE_CUSTOM_LINKER})
target_link_options(lammps PUBLIC -fuse-ld=${CMAKE_CUSTOM_LINKER})
endif()
if(HAVE_LD_PATH_FLAG)
if("${CMAKE_CUSTOM_LINKER}" STREQUAL "mold")
target_link_options(lammps PUBLIC --ld-path=${HAVE_MOLD_LINKER_BIN})
elseif("${CMAKE_CUSTOM_LINKER}" STREQUAL "lld")
target_link_options(lammps PUBLIC --ld-path=${HAVE_LLD_LINKER_BIN})
elseif("${CMAKE_CUSTOM_LINKER}" STREQUAL "gold")
target_link_options(lammps PUBLIC --ld-path=${HAVE_GOLD_LINKER_BIN})
elseif("${CMAKE_CUSTOM_LINKER}" STREQUAL "bfd")
target_link_options(lammps PUBLIC --ld-path=${HAVE_BFD_LINKER_BIN})
endif()
endif()
endif()