| # - Append compiler flag to CMAKE_C_FLAGS if compiler supports it |
| # ADD_C_FLAG_IF_SUPPORTED(<flag>) |
| # <flag> - the compiler flag to test |
| # This internally calls the CHECK_C_COMPILER_FLAG macro. |
| |
| INCLUDE(CheckCCompilerFlag) |
| |
| MACRO(ADD_C_FLAG _FLAG) |
| STRING(TOUPPER ${_FLAG} UPCASE) |
| STRING(REGEX REPLACE "[-=]" "_" UPCASE_PRETTY ${UPCASE}) |
| STRING(REGEX REPLACE "^_+" "" UPCASE_PRETTY ${UPCASE_PRETTY}) |
| CHECK_C_COMPILER_FLAG(${_FLAG} IS_${UPCASE_PRETTY}_SUPPORTED) |
| |
| IF(IS_${UPCASE_PRETTY}_SUPPORTED) |
| SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_FLAG}") |
| ELSE() |
| MESSAGE(FATAL_ERROR "Required flag ${_FLAG} is not supported") |
| ENDIF() |
| ENDMACRO() |
| |
| MACRO(ADD_C_FLAG_IF_SUPPORTED _FLAG) |
| STRING(TOUPPER ${_FLAG} UPCASE) |
| STRING(REGEX REPLACE "[-=]" "_" UPCASE_PRETTY ${UPCASE}) |
| STRING(REGEX REPLACE "^_+" "" UPCASE_PRETTY ${UPCASE_PRETTY}) |
| CHECK_C_COMPILER_FLAG(${_FLAG} IS_${UPCASE_PRETTY}_SUPPORTED) |
| |
| IF(IS_${UPCASE_PRETTY}_SUPPORTED) |
| SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_FLAG}") |
| ENDIF() |
| ENDMACRO() |
