diff options
Diffstat (limited to 'Modules/CheckOBJCCompilerFlag.cmake')
-rw-r--r-- | Modules/CheckOBJCCompilerFlag.cmake | 29 |
1 files changed, 4 insertions, 25 deletions
diff --git a/Modules/CheckOBJCCompilerFlag.cmake b/Modules/CheckOBJCCompilerFlag.cmake index 1d975da882..d8d874175f 100644 --- a/Modules/CheckOBJCCompilerFlag.cmake +++ b/Modules/CheckOBJCCompilerFlag.cmake @@ -5,6 +5,8 @@ CheckOBJCCompilerFlag --------------------- +.. versionadded:: 3.16 + Check whether the Objective-C compiler supports a given flag. .. command:: check_objc_compiler_flag @@ -34,31 +36,8 @@ effect or even a specific one is beyond the scope of this module. include_guard(GLOBAL) include(CheckOBJCSourceCompiles) -include(CMakeCheckCompilerFlagCommonPatterns) +include(Internal/CheckCompilerFlag) macro (CHECK_OBJC_COMPILER_FLAG _FLAG _RESULT) - set(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}") - set(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}") - - # Normalize locale during test compilation. - set(_CheckOBJCCompilerFlag_LOCALE_VARS LC_ALL LC_MESSAGES LANG) - foreach(v ${_CheckOBJCCompilerFlag_LOCALE_VARS}) - set(_CheckOBJCCompilerFlag_SAVED_${v} "$ENV{${v}}") - set(ENV{${v}} OBJC) - endforeach() - CHECK_COMPILER_FLAG_COMMON_PATTERNS(_CheckOBJCCompilerFlag_COMMON_PATTERNS) - CHECK_OBJC_SOURCE_COMPILES("#ifndef __OBJC__\n# error \"Not an Objective-C compiler\"\n#endif\nint main(void) { return 0; }" ${_RESULT} - # Some compilers do not fail with a bad flag - FAIL_REGEX "command line option .* is valid for .* but not for Objective-C" # GNU - FAIL_REGEX "argument unused during compilation: .*" # Clang - ${_CheckOBJCCompilerFlag_COMMON_PATTERNS} - ) - foreach(v ${_CheckOBJCCompilerFlag_LOCALE_VARS}) - set(ENV{${v}} ${_CheckOBJCCompilerFlag_SAVED_${v}}) - unset(_CheckOBJCCompilerFlag_SAVED_${v}) - endforeach() - unset(_CheckOBJCCompilerFlag_LOCALE_VARS) - unset(_CheckOBJCCompilerFlag_COMMON_PATTERNS) - - set (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}") + cmake_check_compiler_flag(OBJC "${_FLAG}" ${_RESULT}) endmacro () |