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Diffstat (limited to 'share/cmake-3.18/Modules/CheckCXXCompilerFlag.cmake')
-rw-r--r-- | share/cmake-3.18/Modules/CheckCXXCompilerFlag.cmake | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/share/cmake-3.18/Modules/CheckCXXCompilerFlag.cmake b/share/cmake-3.18/Modules/CheckCXXCompilerFlag.cmake deleted file mode 100644 index 5e07c25..0000000 --- a/share/cmake-3.18/Modules/CheckCXXCompilerFlag.cmake +++ /dev/null @@ -1,58 +0,0 @@ -# Distributed under the OSI-approved BSD 3-Clause License. See accompanying -# file Copyright.txt or https://cmake.org/licensing for details. - -#[=======================================================================[.rst: -CheckCXXCompilerFlag ------------------------- - -Check whether the CXX compiler supports a given flag. - -.. command:: check_cxx_compiler_flag - - .. code-block:: cmake - - check_cxx_compiler_flag(<flag> <var>) - - Check that the ``<flag>`` is accepted by the compiler without - a diagnostic. Stores the result in an internal cache entry - named ``<var>``. - -This command temporarily sets the ``CMAKE_REQUIRED_DEFINITIONS`` variable -and calls the ``check_cxx_source_compiles`` macro from the -:module:`CheckCXXSourceCompiles` module. See documentation of that -module for a listing of variables that can otherwise modify the build. - -A positive result from this check indicates only that the compiler did not -issue a diagnostic message when given the flag. Whether the flag has any -effect or even a specific one is beyond the scope of this module. - -.. note:: - Since the :command:`try_compile` command forwards flags from variables - like :variable:`CMAKE_CXX_FLAGS <CMAKE_<LANG>_FLAGS>`, unknown flags - in such variables may cause a false negative for this check. -#]=======================================================================] - -include_guard(GLOBAL) -include(CheckCXXSourceCompiles) -include(CMakeCheckCompilerFlagCommonPatterns) - -function(check_cxx_compiler_flag _flag _var) - set(CMAKE_REQUIRED_DEFINITIONS "${_flag}") - - # Normalize locale during test compilation. - set(_locale_vars LC_ALL LC_MESSAGES LANG) - foreach(v IN LISTS _locale_vars) - set(_locale_vars_saved_${v} "$ENV{${v}}") - set(ENV{${v}} C) - endforeach() - check_compiler_flag_common_patterns(_common_patterns) - check_cxx_source_compiles("int main() { return 0; }" ${_var} - # Some compilers do not fail with a bad flag - FAIL_REGEX "command line option .* is valid for .* but not for C\\\\+\\\\+" # GNU - ${_common_patterns} - ) - foreach(v IN LISTS _locale_vars) - set(ENV{${v}} ${_locale_vars_saved_${v}}) - endforeach() - set(${_var} "${${_var}}" PARENT_SCOPE) -endfunction() |