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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
# This module is shared by multiple languages; use include blocker.
if(__COMPILER_GNU)
return()
endif()
set(__COMPILER_GNU 1)
include(Compiler/CMakeCommonCompilerMacros)
set(__pch_header_C "c-header")
set(__pch_header_CXX "c++-header")
set(__pch_header_OBJC "objective-c-header")
set(__pch_header_OBJCXX "objective-c++-header")
macro(__compiler_gnu lang)
# Feature flags.
set(CMAKE_${lang}_VERBOSE_FLAG "-v")
set(CMAKE_${lang}_COMPILE_OPTIONS_WARNING_AS_ERROR "-Werror")
set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "-fPIC")
set (_CMAKE_${lang}_PIE_MAY_BE_SUPPORTED_BY_LINKER NO)
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIE")
# Support of PIE at link stage depends on various elements : platform, compiler, linker
# so to activate it, module CheckPIESupported must be used.
set (_CMAKE_${lang}_PIE_MAY_BE_SUPPORTED_BY_LINKER YES)
set(CMAKE_${lang}_LINK_OPTIONS_PIE ${CMAKE_${lang}_COMPILE_OPTIONS_PIE} "-pie")
set(CMAKE_${lang}_LINK_OPTIONS_NO_PIE "-no-pie")
endif()
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.0)
set(CMAKE_${lang}_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")
endif()
set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "-fPIC")
set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-shared")
set(CMAKE_${lang}_COMPILE_OPTIONS_SYSROOT "--sysroot=")
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG "-Wl,")
set(CMAKE_${lang}_LINKER_WRAPPER_FLAG_SEP ",")
set(CMAKE_${lang}_LINK_MODE DRIVER)
# Older versions of gcc (< 4.5) contain a bug causing them to report a missing
# header file as a warning if depfiles are enabled, causing check_header_file
# tests to always succeed. Work around this by disabling dependency tracking
# in try_compile mode.
get_property(_IN_TC GLOBAL PROPERTY IN_TRY_COMPILE)
if(CMAKE_${lang}_COMPILER_ID STREQUAL "GNU" AND _IN_TC AND NOT CMAKE_FORCE_DEPFILES)
else()
# distcc does not transform -o to -MT when invoking the preprocessor
# internally, as it ought to. Work around this bug by setting -MT here
# even though it isn't strictly necessary.
set(CMAKE_DEPFILE_FLAGS_${lang} "-MD -MT <DEP_TARGET> -MF <DEP_FILE>")
endif()
# Initial configuration flags.
string(APPEND CMAKE_${lang}_FLAGS_INIT " ")
string(APPEND CMAKE_${lang}_FLAGS_DEBUG_INIT " -g")
string(APPEND CMAKE_${lang}_FLAGS_MINSIZEREL_INIT " -Os")
string(APPEND CMAKE_${lang}_FLAGS_RELEASE_INIT " -O3")
string(APPEND CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT " -O2 -g")
if(NOT "x${lang}" STREQUAL "xFortran")
string(APPEND CMAKE_${lang}_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
string(APPEND CMAKE_${lang}_FLAGS_RELEASE_INIT " -DNDEBUG")
string(APPEND CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT " -DNDEBUG")
endif()
set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
if(NOT APPLE OR NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4) # work around #4462
set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ")
endif()
set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER NO)
# '-flto' introduced since GCC 4.5:
# * https://gcc.gnu.org/onlinedocs/gcc-4.4.7/gcc/Option-Summary.html (no)
# * https://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/Option-Summary.html (yes)
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.5)
set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
set(__lto_flags "")
# '-flto=auto' introduced since GCC 10.1:
# * https://gcc.gnu.org/onlinedocs/gcc-9.5.0/gcc/Optimize-Options.html#Optimize-Options (no)
# * https://gcc.gnu.org/onlinedocs/gcc-10.1.0/gcc/Optimize-Options.html#Optimize-Options (yes)
# Since GCC 12.1, the abundance of a parameter produces a warning if compiling multiple targets.
# FIXME: What version of GCC for Windows added support for -flto=auto? 10.3 does not have it.
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 11.0)
list(APPEND __lto_flags -flto=auto)
elseif(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 10.1)
if (CMAKE_HOST_WIN32)
list(APPEND __lto_flags -flto=1)
else()
list(APPEND __lto_flags -flto=auto)
endif()
else()
list(APPEND __lto_flags -flto)
endif()
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.7 AND NOT APPLE)
# '-ffat-lto-objects' introduced since GCC 4.7:
# * https://gcc.gnu.org/onlinedocs/gcc-4.6.4/gcc/Option-Summary.html (no)
# * https://gcc.gnu.org/onlinedocs/gcc-4.7.4/gcc/Option-Summary.html (yes)
list(APPEND __lto_flags -fno-fat-lto-objects)
endif()
set(CMAKE_${lang}_COMPILE_OPTIONS_IPO ${__lto_flags})
# Need to use version of 'ar'/'ranlib' with plugin support.
# Quote from [documentation][1]:
#
# To create static libraries suitable for LTO,
# use gcc-ar and gcc-ranlib instead of ar and ranlib
#
# [1]: https://gcc.gnu.org/onlinedocs/gcc-4.9.4/gcc/Optimize-Options.html
set(CMAKE_${lang}_ARCHIVE_CREATE_IPO
"\"${CMAKE_${lang}_COMPILER_AR}\" qc <TARGET> <LINK_FLAGS> <OBJECTS>"
)
set(CMAKE_${lang}_ARCHIVE_APPEND_IPO
"\"${CMAKE_${lang}_COMPILER_AR}\" q <TARGET> <LINK_FLAGS> <OBJECTS>"
)
set(CMAKE_${lang}_ARCHIVE_FINISH_IPO
"\"${CMAKE_${lang}_COMPILER_RANLIB}\" <TARGET>"
)
endif()
if("${lang}" STREQUAL "CXX")
set(CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "${CMAKE_${lang}_COMPILER}")
if(CMAKE_${lang}_COMPILER_ARG1)
separate_arguments(_COMPILER_ARGS NATIVE_COMMAND "${CMAKE_${lang}_COMPILER_ARG1}")
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND ${_COMPILER_ARGS})
unset(_COMPILER_ARGS)
endif()
list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-w" "-dM" "-E" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
endif()
if(NOT "x${lang}" STREQUAL "xFortran")
set(CMAKE_PCH_EXTENSION .gch)
if (NOT CMAKE_GENERATOR MATCHES "Xcode")
set(CMAKE_PCH_PROLOGUE "#pragma GCC system_header")
endif()
set(CMAKE_${lang}_COMPILE_OPTIONS_INVALID_PCH -Winvalid-pch)
set(CMAKE_${lang}_COMPILE_OPTIONS_USE_PCH -include <PCH_HEADER>)
set(CMAKE_${lang}_COMPILE_OPTIONS_CREATE_PCH -x ${__pch_header_${lang}} -include <PCH_HEADER>)
endif()
# '-fdiagnostics-color=always' introduced since GCC 4.9
# https://gcc.gnu.org/gcc-4.9/changes.html
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 4.9)
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS "-fdiagnostics-color=always")
set(CMAKE_${lang}_COMPILE_OPTIONS_COLOR_DIAGNOSTICS_OFF "-fno-diagnostics-color")
endif()
endmacro()
macro(__compiler_gnu_c_standards lang)
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.5)
set(CMAKE_${lang}90_STANDARD_COMPILE_OPTION "-std=c90")
set(CMAKE_${lang}90_EXTENSION_COMPILE_OPTION "-std=gnu90")
set(CMAKE_${lang}_STANDARD_LATEST 90)
elseif (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_${lang}90_STANDARD_COMPILE_OPTION "-std=c89")
set(CMAKE_${lang}90_EXTENSION_COMPILE_OPTION "-std=gnu89")
set(CMAKE_${lang}_STANDARD_LATEST 90)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_${lang}90_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_${lang}99_STANDARD_COMPILE_OPTION "-std=c99")
set(CMAKE_${lang}99_EXTENSION_COMPILE_OPTION "-std=gnu99")
set(CMAKE_${lang}99_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_${lang}_STANDARD_LATEST 99)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_${lang}11_STANDARD_COMPILE_OPTION "-std=c11")
set(CMAKE_${lang}11_EXTENSION_COMPILE_OPTION "-std=gnu11")
set(CMAKE_${lang}11_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_${lang}_STANDARD_LATEST 11)
elseif (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.6)
set(CMAKE_${lang}11_STANDARD_COMPILE_OPTION "-std=c1x")
set(CMAKE_${lang}11_EXTENSION_COMPILE_OPTION "-std=gnu1x")
set(CMAKE_${lang}_STANDARD_LATEST 11)
endif()
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 8.1)
set(CMAKE_${lang}17_STANDARD_COMPILE_OPTION "-std=c17")
set(CMAKE_${lang}17_EXTENSION_COMPILE_OPTION "-std=gnu17")
set(CMAKE_${lang}_STANDARD_LATEST 17)
endif()
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 9.1)
set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c2x")
set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=gnu2x")
set(CMAKE_${lang}_STANDARD_LATEST 23)
endif()
endmacro()
macro(__compiler_gnu_cxx_standards lang)
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_${lang}98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_${lang}98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
set(CMAKE_${lang}_STANDARD_LATEST 98)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_${lang}98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_${lang}11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_${lang}11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
set(CMAKE_${lang}_STANDARD_LATEST 11)
elseif (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.4)
# 4.3 supports 0x variants
set(CMAKE_${lang}11_STANDARD_COMPILE_OPTION "-std=c++0x")
set(CMAKE_${lang}11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
set(CMAKE_${lang}_STANDARD_LATEST 11)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.8.1)
set(CMAKE_${lang}11_STANDARD__HAS_FULL_SUPPORT ON)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.9)
set(CMAKE_${lang}14_STANDARD_COMPILE_OPTION "-std=c++14")
set(CMAKE_${lang}14_EXTENSION_COMPILE_OPTION "-std=gnu++14")
set(CMAKE_${lang}_STANDARD_LATEST 14)
elseif (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.8)
set(CMAKE_${lang}14_STANDARD_COMPILE_OPTION "-std=c++1y")
set(CMAKE_${lang}14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
set(CMAKE_${lang}_STANDARD_LATEST 14)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 5.0)
set(CMAKE_${lang}14_STANDARD__HAS_FULL_SUPPORT ON)
endif()
if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 8.0)
set(CMAKE_${lang}17_STANDARD_COMPILE_OPTION "-std=c++17")
set(CMAKE_${lang}17_EXTENSION_COMPILE_OPTION "-std=gnu++17")
set(CMAKE_${lang}_STANDARD_LATEST 17)
elseif (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 5.1)
set(CMAKE_${lang}17_STANDARD_COMPILE_OPTION "-std=c++1z")
set(CMAKE_${lang}17_EXTENSION_COMPILE_OPTION "-std=gnu++1z")
set(CMAKE_${lang}_STANDARD_LATEST 17)
endif()
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 11.1)
set(CMAKE_${lang}20_STANDARD_COMPILE_OPTION "-std=c++20")
set(CMAKE_${lang}20_EXTENSION_COMPILE_OPTION "-std=gnu++20")
set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c++23")
set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=gnu++23")
set(CMAKE_${lang}_STANDARD_LATEST 23)
elseif(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 8.0)
set(CMAKE_${lang}20_STANDARD_COMPILE_OPTION "-std=c++2a")
set(CMAKE_${lang}20_EXTENSION_COMPILE_OPTION "-std=gnu++2a")
set(CMAKE_${lang}_STANDARD_LATEST 20)
endif()
if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0)
set(CMAKE_${lang}26_STANDARD_COMPILE_OPTION "-std=c++26")
set(CMAKE_${lang}26_EXTENSION_COMPILE_OPTION "-std=gnu++26")
set(CMAKE_${lang}_STANDARD_LATEST 26)
endif()
endmacro()
|
