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Diffstat (limited to 'cmake/utils/CompilerUtils.cmake')
| -rw-r--r-- | cmake/utils/CompilerUtils.cmake | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cmake/utils/CompilerUtils.cmake b/cmake/utils/CompilerUtils.cmake new file mode 100644 index 00000000..35548f4f --- /dev/null +++ b/cmake/utils/CompilerUtils.cmake @@ -0,0 +1,13 @@ +include(CheckCCompilerFlag) + +function(test_and_set_c_compiler_flag_global _flag) + string(REGEX REPLACE "-" "_" _sflag ${_flag}) + string(REGEX REPLACE "=" "_" _sflag ${_sflag}) + # Use -Werror during test so clang rejects unknown flags + set(CMAKE_REQUIRED_FLAGS "-Werror ${_flag}") + check_c_compiler_flag(${_flag} COMPILER_SUPPORTS_FLAG_${_sflag}) + + if(COMPILER_SUPPORTS_FLAG_${_sflag}) + add_compile_options(${_flag}) + endif() +endfunction() |