blob: 6fb0200c4273603e7a721cb718db3b768fc45db5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
include(Compiler/Clang)
__compiler_clang(CXX)
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
endif()
cmake_policy(GET CMP0025 appleClangPolicy)
if(APPLE AND NOT appleClangPolicy STREQUAL NEW)
return()
endif()
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.1)
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
set(CMAKE_CXX11_STANDARD__HAS_FULL_SUPPORT ON)
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5)
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14")
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
endif()
set(_clang_version_std17 5.0)
if(CMAKE_SYSTEM_NAME STREQUAL "Android")
set(_clang_version_std17 6.0)
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "${_clang_version_std17}")
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++17")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++17")
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++1z")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z")
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS "${_clang_version_std17}")
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++2a")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++2a")
endif()
unset(_clang_version_std17)
__compiler_check_default_language_standard(CXX 2.1 98)
elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 3.9
AND CMAKE_CXX_SIMULATE_VERSION VERSION_GREATER_EQUAL 19.0)
# This version of clang-cl and the MSVC version it simulates have
# support for -std: flags.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std:c++14")
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 6.0)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++17")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++17")
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std:c++latest")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std:c++latest")
else()
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++latest")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++latest")
endif()
__compiler_check_default_language_standard(CXX 3.9 14)
else()
# This version of clang-cl, or the MSVC version it simulates, does not have
# language standards. Set these options as empty strings so the feature
# test infrastructure can at least check to see if they are defined.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "")
# There is no meaningful default for this
set(CMAKE_CXX_STANDARD_DEFAULT "")
# There are no compiler modes so we only need to test features once.
# Override the default macro for this special case. Pretend that
# all language standards are available so that at least compilation
# can be attempted.
macro(cmake_record_cxx_compile_features)
list(APPEND CMAKE_CXX_COMPILE_FEATURES
cxx_std_98
cxx_std_11
cxx_std_14
cxx_std_17
cxx_std_20
)
_record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
endmacro()
endif()
|
