diff options
Diffstat (limited to 'Modules/Compiler/Clang-C.cmake')
| -rw-r--r-- | Modules/Compiler/Clang-C.cmake | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Modules/Compiler/Clang-C.cmake b/Modules/Compiler/Clang-C.cmake index 98fcd0b3f..b881e2b03 100644 --- a/Modules/Compiler/Clang-C.cmake +++ b/Modules/Compiler/Clang-C.cmake @@ -1,2 +1,20 @@ 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() + +__compiler_check_default_language_standard(C 3.4 99 3.6 11) |