22 lines
845 B
CMake
22 lines
845 B
CMake
#
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# add_c_compiler_flag("-Werror" SUPPORTED_CFLAGS)
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#
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# Copyright (c) 2018 Andreas Schneider <asn@cryptomilk.org>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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include(CheckCCompilerFlag)
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macro(add_c_compiler_flag _COMPILER_FLAG _OUTPUT_VARIABLE)
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string(TOUPPER ${_COMPILER_FLAG} _COMPILER_FLAG_NAME)
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string(REGEX REPLACE "^-" "" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
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string(REGEX REPLACE "(-|=|\ )" "_" _COMPILER_FLAG_NAME "${_COMPILER_FLAG_NAME}")
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check_c_compiler_flag("${_COMPILER_FLAG}" WITH_${_COMPILER_FLAG_NAME}_FLAG)
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if (WITH_${_COMPILER_FLAG_NAME}_FLAG)
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#string(APPEND ${_OUTPUT_VARIABLE} "${_COMPILER_FLAG} ")
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list(APPEND ${_OUTPUT_VARIABLE} ${_COMPILER_FLAG})
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endif()
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endmacro()
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