1include(Compiler/IntelLLVM)
2__compiler_intel_llvm(C)
3
4if("x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "xMSVC")
5  set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -TC)
6  set(CMAKE_C_CLANG_TIDY_DRIVER_MODE "cl")
7  set(CMAKE_C_INCLUDE_WHAT_YOU_USE_DRIVER_MODE "cl")
8  if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
9      AND CMAKE_GENERATOR MATCHES "Makefiles|WMake"
10      AND CMAKE_DEPFILE_FLAGS_C)
11    set(CMAKE_C_DEPENDS_USE_COMPILER TRUE)
12  endif()
13else()
14  set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c)
15  if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
16      AND CMAKE_GENERATOR MATCHES "Makefiles|WMake"
17      AND CMAKE_DEPFILE_FLAGS_C)
18    # dependencies are computed by the compiler itself
19    set(CMAKE_C_DEPFILE_FORMAT gcc)
20    set(CMAKE_C_DEPENDS_USE_COMPILER TRUE)
21  endif()
22
23  string(APPEND CMAKE_C_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
24  string(APPEND CMAKE_C_FLAGS_RELEASE_INIT " -DNDEBUG")
25  string(APPEND CMAKE_C_FLAGS_RELWITHDEBINFO_INIT " -DNDEBUG")
26endif()
27
28set(CMAKE_C90_STANDARD__HAS_FULL_SUPPORT ON)
29set(CMAKE_C99_STANDARD__HAS_FULL_SUPPORT ON)
30set(CMAKE_C11_STANDARD__HAS_FULL_SUPPORT ON)
31
32if(NOT "x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC")
33  set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90")
34  set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90")
35
36  set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
37  set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
38
39  set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
40  set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
41
42  set(CMAKE_C17_STANDARD_COMPILE_OPTION "-std=c17")
43  set(CMAKE_C17_EXTENSION_COMPILE_OPTION "-std=gnu17")
44else()
45  # clang-cl doesn't have any of these
46  set(CMAKE_C90_STANDARD_COMPILE_OPTION "")
47  set(CMAKE_C90_EXTENSION_COMPILE_OPTION "")
48
49  set(CMAKE_C99_STANDARD_COMPILE_OPTION "")
50  set(CMAKE_C99_EXTENSION_COMPILE_OPTION "")
51
52  set(CMAKE_C11_STANDARD_COMPILE_OPTION "")
53  set(CMAKE_C11_EXTENSION_COMPILE_OPTION "")
54
55  set(CMAKE_C17_STANDARD_COMPILE_OPTION "")
56  set(CMAKE_C17_EXTENSION_COMPILE_OPTION "")
57endif()
58
59__compiler_check_default_language_standard(C 2020 17)
60