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02c6e2df68
Replacing the / with _ in the variable name, as CMake doesn't support this character in variable names.
65 lines
2.6 KiB
CMake
65 lines
2.6 KiB
CMake
include(CheckCXXCompilerFlag)
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include(CheckCXXSourceCompiles)
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# Replaces the slash character in flags to enable use of MSVC compiler arguments in variable names
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macro(cflag_name_to_var_name outvar prefix flag)
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string(REPLACE "/" "_" _flag_clean "${flag}")
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set(${outvar} "${prefix}_${_flag_clean}_SUPPORTED")
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unset(_flag_clean)
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endmacro()
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macro(enable_cflags_if_supported)
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foreach(flag ${ARGN})
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cflag_name_to_var_name(_supported_var CXXFLAG ${flag})
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check_cxx_compiler_flag("${flag}" ${_supported_var})
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if(${_supported_var})
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add_compile_options("${flag}")
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endif()
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unset(_supported_var)
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endforeach()
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endmacro()
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macro(enable_linker_flags_if_supported)
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set(_old_CMAKE_REQUIRED_LINK_OPTIONS "${CMAKE_REQUIRED_LINK_OPTIONS}")
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foreach(flag ${ARGN})
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set(CMAKE_REQUIRED_LINK_OPTIONS "${flag}")
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cflag_name_to_var_name(_supported_var LDCFLAG ${flag})
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check_cxx_source_compiles("int main(){return 0;}" ${_supported_var})
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if(${_supported_var})
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add_link_options(${flag})
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else()
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set(CMAKE_REQUIRED_LINK_OPTIONS "LINKER:${flag}")
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cflag_name_to_var_name(_supported_linker_var LDCFLAG_LINKER ${flag})
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check_cxx_source_compiles("int main(){return 0;}" ${_supported_linker_var})
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if(${_supported_linker_var})
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add_link_options(LINKER:${flag})
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endif()
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unset(_supported_linker_var)
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endif()
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unset(_supported_var)
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endforeach()
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set(CMAKE_REQUIRED_LINK_OPTIONS "${_old_CMAKE_REQUIRED_LINK_OPTIONS}")
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endmacro()
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macro(enable_target_linker_flags_if_supported target access)
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set(_old_CMAKE_REQUIRED_LINK_OPTIONS "${CMAKE_REQUIRED_LINK_OPTIONS}")
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foreach(flag ${ARGN})
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set(CMAKE_REQUIRED_LINK_OPTIONS "${flag}")
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cflag_name_to_var_name(_supported_var LDCFLAG ${flag})
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check_cxx_source_compiles("int main(){return 0;}" ${_supported_var})
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if(${_supported_var})
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target_link_options(${target} ${access} ${flag})
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else()
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set(CMAKE_REQUIRED_LINK_OPTIONS "LINKER:${flag}")
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cflag_name_to_var_name(_supported_linker_var LDCFLAG_LINKER ${flag})
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check_cxx_source_compiles("int main(){return 0;}" ${_supported_linker_var})
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if(${_supported_linker_var})
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target_link_options(${target} ${access} LINKER:${flag})
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endif()
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unset(_supported_linker_var)
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endif()
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unset(_supported_var)
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endforeach()
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set(CMAKE_REQUIRED_LINK_OPTIONS "${_old_CMAKE_REQUIRED_LINK_OPTIONS}")
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endmacro()
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