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| author | Alexander Grund <alexander.grund@tu-dresden.de> | 2019-12-09 09:42:40 +0100 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2019-12-09 11:37:40 -0500 |
| commit | 958f858ad815024550b22eeaac02f183f8d646fd (patch) | |
| tree | bc7f997717889ad688b637db6c6cb609c11a8fff /Source | |
| parent | 8c7b7df788851358392e4a00faf00bc2a674c3a6 (diff) | |
| download | cmake-958f858ad815024550b22eeaac02f183f8d646fd.tar.gz | |
Check for support before adding bigtoc linker flag
Fixes: #20076
Diffstat (limited to 'Source')
| -rw-r--r-- | Source/Modules/CheckCXXLinkerFlag.cmake | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Source/Modules/CheckCXXLinkerFlag.cmake b/Source/Modules/CheckCXXLinkerFlag.cmake new file mode 100644 index 0000000000..6cb1ba3ac2 --- /dev/null +++ b/Source/Modules/CheckCXXLinkerFlag.cmake @@ -0,0 +1,29 @@ +# 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(CheckCXXSourceCompiles) +include(CMakeCheckCompilerFlagCommonPatterns) + +function(check_cxx_linker_flag _flag _var) + if(CMAKE_VERSION VERSION_LESS "3.14") + set(CMAKE_REQUIRED_LIBRARIES "${_flag}") + else() + set(CMAKE_REQUIRED_LINK_OPTIONS "${_flag}") + endif() + + # Normalize locale during test compilation. + set(_locale_vars LC_ALL LC_MESSAGES LANG) + foreach(v IN LISTS _locale_vars) + set(_locale_vars_saved_${v} "$ENV{${v}}") + set(ENV{${v}} C) + endforeach() + check_compiler_flag_common_patterns(_common_patterns) + check_cxx_source_compiles("int main() { return 0; }" ${_var} + ${_common_patterns} + ) + foreach(v IN LISTS _locale_vars) + set(ENV{${v}} ${_locale_vars_saved_${v}}) + endforeach() + set(${_var} "${${_var}}" PARENT_SCOPE) +endfunction() |