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DPF-Plugins
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Collection of DPF-based plugins for packaging
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DPF-Plugins/plugins/ProM/projectM/cmake/EnableCFlagsIfSupported.cmake

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  1. include(CheckCXXCompilerFlag)

  2. include(CheckCXXSourceCompiles)

  3. 

  4. macro(enable_cflags_if_supported)

  5.     foreach(flag ${ARGN})

  6.         check_cxx_compiler_flag("${flag}" CXXFLAG_${flag}_SUPPORTED)

  7.         if(CXXFLAG_${flag}_SUPPORTED)

  8.             add_compile_options("${flag}")

  9.         endif()

  10.     endforeach()

  11. endmacro()

  12. 

  13. macro(enable_linker_flags_if_supported)

  14.     set(_old_CMAKE_REQUIRED_LINK_OPTIONS "${CMAKE_REQUIRED_LINK_OPTIONS}")

  15.     foreach(flag ${ARGN})

  16.         set(CMAKE_REQUIRED_LINK_OPTIONS "${flag}")

  17.         check_cxx_source_compiles("int main(){return 0;}" LDCFLAG_${flag}_SUPPORTED)

  18.         if(LDCFLAG_${flag}_SUPPORTED)

  19.             add_link_options(${flag})

  20.         else()

  21.             set(CMAKE_REQUIRED_LINK_OPTIONS "LINKER:${flag}")

  22.             check_cxx_source_compiles("int main(){return 0;}" LDCFLAG_LINKER_${flag}_SUPPORTED)

  23.             if(LDFLAG_LINKER_${flag}_SUPPORTED)

  24.                 add_link_options(LINKER:${flag})

  25.             endif()

  26.         endif()

  27.     endforeach()

  28.     set(CMAKE_REQUIRED_LINK_OPTIONS "${_old_CMAKE_REQUIRED_LINK_OPTIONS}")

  29. endmacro()

  30. 

  31. macro(enable_target_linker_flags_if_supported target access)

  32.     set(_old_CMAKE_REQUIRED_LINK_OPTIONS "${CMAKE_REQUIRED_LINK_OPTIONS}")

  33.     foreach(flag ${ARGN})

  34.         set(CMAKE_REQUIRED_LINK_OPTIONS "${flag}")

  35.         check_cxx_source_compiles("int main(){return 0;}" LDCFLAG_${flag}_SUPPORTED)

  36.         if(LDCFLAG_${flag}_SUPPORTED)

  37.             target_link_options(${target} ${access} ${flag})

  38.         else()

  39.             set(CMAKE_REQUIRED_LINK_OPTIONS "LINKER:${flag}")

  40.             check_cxx_source_compiles("int main(){return 0;}" LDCFLAG_LINKER_${flag}_SUPPORTED)

  41.             if(LDFLAG_LINKER_${flag}_SUPPORTED)

  42.                 target_link_options(${target} ${access} LINKER:${flag})

  43.             endif()

  44.         endif()

  45.     endforeach()

  46.     set(CMAKE_REQUIRED_LINK_OPTIONS "${_old_CMAKE_REQUIRED_LINK_OPTIONS}")

  47. endmacro()