diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/Modules/GrMiscUtils.cmake | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cmake/Modules/GrMiscUtils.cmake b/cmake/Modules/GrMiscUtils.cmake index 871861e35..10de21c7c 100644 --- a/cmake/Modules/GrMiscUtils.cmake +++ b/cmake/Modules/GrMiscUtils.cmake @@ -84,3 +84,16 @@ macro(GR_INCLUDE_SUBDIRECTORY subdir) list(REMOVE_AT _cmake_source_dirs 0) list(REMOVE_AT _cmake_binary_dirs 0) endmacro(GR_INCLUDE_SUBDIRECTORY) + +######################################################################## +# Check if a compiler flag works and conditionally set a compile define. +# - flag the compiler flag to check for +# - have the variable to set with result +######################################################################## +INCLUDE(CheckCXXCompilerFlag) +MACRO(GR_ADD_CXX_COMPILER_FLAG_IF_AVAILABLE flag have) + CHECK_CXX_COMPILER_FLAG(${flag} ${have}) + IF(${have}) + ADD_DEFINITIONS(${flag}) + ENDIF(${have}) +ENDMACRO(GR_ADD_CXX_COMPILER_FLAG_IF_AVAILABLE) |