1include(Compiler/Clang-OBJC)
2
3if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
4    AND CMAKE_GENERATOR MATCHES "Makefiles"
5    AND CMAKE_DEPFILE_FLAGS_OBJC)
6  # dependencies are computed by the compiler itself
7  set(CMAKE_OBJC_DEPFILE_FORMAT gcc)
8  set(CMAKE_OBJC_DEPENDS_USE_COMPILER TRUE)
9endif()
10
11
12if(NOT CMAKE_OBJC_COMPILER_VERSION VERSION_LESS 4.0)
13  set(CMAKE_OBJC90_STANDARD_COMPILE_OPTION "-std=c90")
14  set(CMAKE_OBJC90_EXTENSION_COMPILE_OPTION "-std=gnu90")
15  set(CMAKE_OBJC90_STANDARD__HAS_FULL_SUPPORT ON)
16
17  set(CMAKE_OBJC99_STANDARD_COMPILE_OPTION "-std=c99")
18  set(CMAKE_OBJC99_EXTENSION_COMPILE_OPTION "-std=gnu99")
19  set(CMAKE_OBJC99_STANDARD__HAS_FULL_SUPPORT ON)
20
21  set(CMAKE_OBJC11_STANDARD_COMPILE_OPTION "-std=c11")
22  set(CMAKE_OBJC11_EXTENSION_COMPILE_OPTION "-std=gnu11")
23  set(CMAKE_OBJC11_STANDARD__HAS_FULL_SUPPORT ON)
24endif()
25
26# AppleClang 10.0 was the oldest compiler available to test C17 support
27if(NOT CMAKE_OBJC_COMPILER_VERSION VERSION_LESS 10.0)
28  set(CMAKE_OBJC17_STANDARD_COMPILE_OPTION "-std=c17")
29  set(CMAKE_OBJC17_EXTENSION_COMPILE_OPTION "-std=gnu17")
30  set(CMAKE_OBJC17_STANDARD__HAS_FULL_SUPPORT ON)
31endif()
32
33if(NOT CMAKE_OBJC_COMPILER_VERSION VERSION_LESS 11.0)
34  set(CMAKE_OBJC23_STANDARD_COMPILE_OPTION "-std=c2x")
35  set(CMAKE_OBJC23_EXTENSION_COMPILE_OPTION "-std=gnu2x")
36  set(CMAKE_OBJC23_STANDARD__HAS_FULL_SUPPORT ON)
37endif()
38
39# AppleClang 10.0 was the oldest compiler available to test default C11 support
40__compiler_check_default_language_standard(OBJC 4.0 99 10.0 11)
41