23 lines
884 B
CMake
23 lines
884 B
CMake
#
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# Check if the CXX compiler accepts a flag
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#
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# CHECK_FUNCTION_EXISTS - macro which checks if the function exists
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# FLAG - the flags to try
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# VARIABLE - variable to store the result
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#
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MACRO(CHECK_CXX_ACCEPTS_FLAG FLAGS VARIABLE)
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MESSAGE(STATUS "Checking to see if CXX compiler acepts flag ${FLAGS}")
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TRY_COMPILE(${VARIABLE}
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${CMAKE_BINARY_DIR}
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${CMAKE_ROOT}/Modules/DummyCXXFile.cxx
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CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${FLAGS}
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OUTPUT_VARIABLE OUTPUT)
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IF(${VARIABLE})
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MESSAGE(STATUS "Checking to see if CXX compiler acepts flag ${FLAGS} - yes")
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ELSE(${VARIABLE})
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WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
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"Determining if the CXX compiler accepts the flag ${FLAGS} failed with the following output:\n" "${OUTPUT}\n" APPEND)
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ENDIF(${VARIABLE})
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ENDMACRO(CHECK_CXX_ACCEPTS_FLAG)
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