diff options
Diffstat (limited to 'share/cmake-3.2/Modules/Compiler/Clang-C.cmake')
| -rw-r--r-- | share/cmake-3.2/Modules/Compiler/Clang-C.cmake | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/share/cmake-3.2/Modules/Compiler/Clang-C.cmake b/share/cmake-3.2/Modules/Compiler/Clang-C.cmake new file mode 100644 index 0000000..548d0a5 --- /dev/null +++ b/share/cmake-3.2/Modules/Compiler/Clang-C.cmake @@ -0,0 +1,41 @@ +include(Compiler/Clang) +__compiler_clang(C) + +cmake_policy(GET CMP0025 appleClangPolicy) +if(WIN32 OR (APPLE AND NOT appleClangPolicy STREQUAL NEW)) + return() +endif() + +if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4) + set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90") + set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90") + + set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99") + set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99") + + set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11") +endif() + +if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.6) + set(CMAKE_C_STANDARD_DEFAULT 11) +elseif(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4) + set(CMAKE_C_STANDARD_DEFAULT 99) +endif() + +macro(cmake_record_c_compile_features) + macro(_get_clang_features std_version list) + record_compiler_features(C "${std_version}" ${list}) + endmacro() + + set(_result 0) + if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4) + _get_clang_features(${CMAKE_C11_STANDARD_COMPILE_OPTION} CMAKE_C11_COMPILE_FEATURES) + if (_result EQUAL 0) + _get_clang_features(${CMAKE_C99_STANDARD_COMPILE_OPTION} CMAKE_C99_COMPILE_FEATURES) + endif() + if (_result EQUAL 0) + _get_clang_features(${CMAKE_C90_STANDARD_COMPILE_OPTION} CMAKE_C90_COMPILE_FEATURES) + endif() + endif() +endmacro() |