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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
include_guard(GLOBAL)
include(Internal/CheckFlagCommonConfig)
include(Internal/CheckSourceCompiles)
include(CMakeCheckCompilerFlagCommonPatterns)
function(CMAKE_CHECK_COMPILER_FLAG _lang _flag _var)
# Parse extra arguments
cmake_parse_arguments(PARSE_ARGV 3 CHECK_COMPILER_FLAG "" "OUTPUT_VARIABLE" "")
cmake_check_flag_common_init("check_compiler_flag" ${_lang} _lang_src _lang_fail_regex)
set(CMAKE_REQUIRED_DEFINITIONS ${_flag})
check_compiler_flag_common_patterns(_common_patterns)
cmake_check_source_compiles(${_lang}
"${_lang_src}"
${_var}
${_lang_fail_regex}
${_common_patterns}
OUTPUT_VARIABLE _output
)
if (CHECK_COMPILER_FLAG_OUTPUT_VARIABLE)
set(${CHECK_COMPILER_FLAG_OUTPUT_VARIABLE} "${_output}" PARENT_SCOPE)
endif()
cmake_check_flag_common_finish()
endfunction()
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