You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.3 KiB
44 lines
1.3 KiB
3 years ago
|
# 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)
|
||
|
|
|
||
|
|
cmake_policy(PUSH)
|
||
|
|
cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced
|
||
|
|
|
||
|
|
function(CMAKE_CHECK_LINKER_FLAG _lang _flag _var)
|
||
|
|
# link step supports less languages than the compiler
|
||
|
|
# so do a first check about the requested language
|
||
|
|
if (_lang STREQUAL "ISPC")
|
||
|
|
message (SEND_ERROR "check_linker_flag: ${_lang}: unsupported language.")
|
||
|
|
return()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Parse extra arguments
|
||
|
|
cmake_parse_arguments(PARSE_ARGV 3 CHECK_LINKER_FLAG "" "OUTPUT_VARIABLE" "")
|
||
|
|
|
||
|
|
cmake_check_flag_common_init("check_linker_flag" ${_lang} _lang_src _lang_fail_regex)
|
||
|
|
|
||
|
|
set(CMAKE_REQUIRED_LINK_OPTIONS "${_flag}")
|
||
|
|
|
||
|
|
check_compiler_flag_common_patterns(_common_patterns)
|
||
|
|
cmake_check_source_compiles(${_lang}
|
||
|
|
"${_lang_src}"
|
||
|
|
${_var}
|
||
|
|
${_lang_fail_regex}
|
||
|
|
${_common_patterns}
|
||
|
|
OUTPUT_VARIABLE _output
|
||
|
|
)
|
||
|
|
|
||
|
|
if (CHECK_LINKER_FLAG_OUTPUT_VARIABLE)
|
||
|
|
set(${CHECK_LINKER_FLAG_OUTPUT_VARIABLE} "${_output}" PARENT_SCOPE)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
cmake_check_flag_common_finish()
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
cmake_policy(POP)
|