| blob | 6edfeafe4a43f3027f95f604d7a20ac599c6cf72 |
1 project('glib', 'c', 'cpp',
2 version : '2.57.1',
3 meson_version : '>= 0.46.1',
4 default_options : [
5 'buildtype=debugoptimized',
6 'warning_level=1',
7 'c_std=gnu89'
8 ]
9 )
11 cc = meson.get_compiler('c')
12 cxx = meson.get_compiler('cpp')
14 cc_can_run = not meson.is_cross_build() or meson.has_exe_wrapper()
16 if cc.get_id() == 'msvc'
17 # Ignore several spurious warnings for things glib does very commonly
18 # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
19 # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
20 # NOTE: Only add warnings here if you are sure they're spurious
21 add_project_arguments('/wd4035', '/wd4715', '/wd4116',
22 '/wd4046', '/wd4068', '/wo4090', '/FImsvc_recommended_pragmas.h',language : 'c')
23 # Disable SAFESEH with MSVC for plugins and libs that use external deps that
24 # are built with MinGW
25 noseh_link_args = ['/SAFESEH:NO']
26 # Set the input and exec encoding to utf-8, like is the default with GCC
27 add_project_arguments(cc.get_supported_arguments(['/utf-8']), language: 'c')
28 else
29 noseh_link_args = []
30 # -mms-bitfields vs -fnative-struct ?
31 endif
33 host_system = host_machine.system()
35 glib_version = meson.project_version()
36 glib_api_version = '2.0'
37 version_arr = glib_version.split('.')
38 major_version = version_arr[0].to_int()
39 minor_version = version_arr[1].to_int()
40 micro_version = version_arr[2].to_int()
42 interface_age = minor_version.is_odd() ? 0 : micro_version
43 binary_age = 100 * minor_version + micro_version
45 soversion = 0
46 # Maintain compatibility with previous libtool versioning
47 # current = minor * 100 + micro
48 library_version = '@0@.@1@.@2@'.format(soversion, binary_age - interface_age, interface_age)
50 configinc = include_directories('.')
51 glibinc = include_directories('glib')
52 gobjectinc = include_directories('gobject')
53 gmoduleinc = include_directories('gmodule')
54 gioinc = include_directories('gio')
56 glib_prefix = get_option('prefix')
57 glib_bindir = join_paths(glib_prefix, get_option('bindir'))
58 glib_libdir = join_paths(glib_prefix, get_option('libdir'))
59 glib_datadir = join_paths(glib_prefix, get_option('datadir'))
60 glib_pkgdatadir = join_paths(glib_datadir, 'glib-2.0')
61 glib_includedir = join_paths(glib_prefix, get_option('includedir'))
62 glib_giomodulesdir = get_option('gio_module_dir')
63 if glib_giomodulesdir == ''
64 glib_giomodulesdir = join_paths(glib_libdir, 'gio', 'modules')
65 endif
67 glib_pkgconfigreldir = join_paths(glib_libdir, 'pkgconfig')
69 add_project_arguments('-D_GNU_SOURCE', language: 'c')
71 # Disable strict aliasing;
72 # see https://bugzilla.gnome.org/show_bug.cgi?id=791622
73 if cc.has_argument('-fno-strict-aliasing')
74 add_project_arguments('-fno-strict-aliasing', language: 'c')
75 endif
77 ########################
78 # Configuration begins #
79 ########################
80 glib_conf = configuration_data()
81 glibconfig_conf = configuration_data()
83 # accumulated list of defines as we check for them, so we can easily
84 # use them later in test programs (autoconf does this automatically)
85 glib_conf_prefix = ''
87 glib_conf.set('GLIB_MAJOR_VERSION', major_version)
88 glib_conf.set('GLIB_MINOR_VERSION', minor_version)
89 glib_conf.set('GLIB_MICRO_VERSION', micro_version)
90 glib_conf.set('GLIB_INTERFACE_AGE', interface_age)
91 glib_conf.set('GLIB_BINARY_AGE', binary_age)
92 glib_conf.set_quoted('GETTEXT_PACKAGE', 'glib20')
93 glib_conf.set_quoted('PACKAGE_BUGREPORT', 'https://gitlab.gnome.org/GNOME/glib/issues/new')
94 glib_conf.set_quoted('PACKAGE_NAME', 'glib')
95 glib_conf.set_quoted('PACKAGE_STRING', 'glib @0@'.format(meson.project_version()))
96 glib_conf.set_quoted('PACKAGE_TARNAME', 'glib')
97 glib_conf.set_quoted('PACKAGE_URL', '')
98 glib_conf.set_quoted('PACKAGE_VERSION', meson.project_version())
99 glib_conf.set('ENABLE_NLS', 1)
101 # used by the .rc.in files
102 glibconfig_conf.set('LT_CURRENT_MINUS_AGE', soversion)
104 glib_conf.set('_GNU_SOURCE', 1)
106 if host_system == 'windows'
107 # Poll doesn't work on devices on Windows
108 glib_conf.set('BROKEN_POLL', true)
109 endif
111 # Check for GNU visibility attributes
112 g_have_gnuc_visibility = cc.compiles('''
113 void
114 __attribute__ ((visibility ("hidden")))
115 f_hidden (void)
116 {
117 }
118 void
119 __attribute__ ((visibility ("internal")))
120 f_internal (void)
121 {
122 }
123 void
124 __attribute__ ((visibility ("protected")))
125 f_protected (void)
126 {
127 }
128 void
129 __attribute__ ((visibility ("default")))
130 f_default (void)
131 {
132 }
133 int main (void)
134 {
135 f_hidden();
136 f_internal();
137 f_protected();
138 f_default();
139 return 0;
140 }
141 ''',
142 # Not supported by MSVC, but MSVC also won't support visibility,
143 # so it's OK to pass -Werror explicitly. Replace with
144 # override_options : 'werror=true' once that is supported
145 args: ['-Werror'],
146 name : 'GNU C visibility attributes test')
148 if g_have_gnuc_visibility
149 glibconfig_conf.set('G_HAVE_GNUC_VISIBILITY', '1')
150 endif
152 # Detect and set symbol visibility
153 glib_hidden_visibility_args = []
154 if get_option('default_library') != 'static'
155 if host_system == 'windows'
156 glib_conf.set('DLL_EXPORT', true)
157 if cc.get_id() == 'msvc'
158 glib_conf.set('_GLIB_EXTERN', '__declspec(dllexport) extern')
159 elif cc.has_argument('-fvisibility=hidden')
160 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) __declspec(dllexport) extern')
161 glib_hidden_visibility_args = ['-fvisibility=hidden']
162 endif
163 elif cc.has_argument('-fvisibility=hidden')
164 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) extern')
165 glib_hidden_visibility_args = ['-fvisibility=hidden']
166 endif
167 endif
169 if host_system == 'windows' and get_option('default_library') == 'static'
170 glibconfig_conf.set('GLIB_STATIC_COMPILATION', '1')
171 glibconfig_conf.set('GOBJECT_STATIC_COMPILATION', '1')
172 endif
174 # FIXME: what about Cygwin (G_WITH_CYGWIN)
175 if host_system == 'windows'
176 glib_os = '''#define G_OS_WIN32
177 #define G_PLATFORM_WIN32'''
178 else
179 glib_os = '#define G_OS_UNIX'
180 endif
181 glibconfig_conf.set('glib_os', glib_os)
183 # We need to know the build type to determine what .lib files we need on Visual Studio
184 # for dependencies that don't normally come with pkg-config files for Visual Studio builds
185 buildtype = get_option('buildtype')
187 glib_debug_cflags = []
188 if buildtype.startswith('debug')
189 glib_debug_cflags += ['-DG_ENABLE_DEBUG']
190 elif buildtype == 'release'
191 glib_debug_cflags += ['-DG_DISABLE_CAST_CHECKS']
192 endif
194 add_project_arguments(glib_debug_cflags, language: 'c')
196 # check for header files
198 headers = [
199 'alloca.h',
200 'crt_externs.h',
201 'dirent.h', # MSC does not come with this by default
202 'float.h',
203 'fstab.h',
204 'grp.h',
205 'inttypes.h',
206 'limits.h',
207 'linux/magic.h',
208 'locale.h',
209 'mach/mach_time.h',
210 'memory.h',
211 'mntent.h',
212 'poll.h',
213 'pwd.h',
214 'sched.h',
215 'stdint.h',
216 'stdlib.h',
217 'string.h',
218 'strings.h',
219 'sys/auxv.h',
220 'sys/event.h',
221 'sys/filio.h',
222 'sys/inotify.h',
223 'sys/mkdev.h',
224 'sys/mntctl.h',
225 'sys/mnttab.h',
226 'sys/mount.h',
227 'sys/param.h',
228 'sys/resource.h',
229 'sys/select.h',
230 'sys/statfs.h',
231 'sys/stat.h',
232 'sys/statvfs.h',
233 'sys/sysctl.h',
234 'sys/time.h', # MSC does not come with this by default
235 'sys/times.h',
236 'sys/types.h',
237 'sys/uio.h',
238 'sys/vfs.h',
239 'sys/vfstab.h',
240 'sys/vmount.h',
241 'sys/wait.h',
242 'termios.h',
243 'unistd.h',
244 'values.h',
245 'xlocale.h',
246 ]
248 foreach h : headers
249 if cc.has_header(h)
250 define = 'HAVE_' + h.underscorify().to_upper()
251 glib_conf.set(define, 1)
252 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
253 endif
254 endforeach
256 # FIXME: Use cc.check_header from Meson 0.47.
257 # FreeBSD includes a malloc.h which always throw compilation error.
258 if cc.compiles('#include <malloc.h>', name : 'malloc.h')
259 glib_conf.set('HAVE_MALLOC_H', 1)
260 glib_conf_prefix = glib_conf_prefix + '#define HAVE_MALLOC_H 1\n'
261 endif
263 if cc.has_header('linux/netlink.h')
264 glib_conf.set('HAVE_NETLINK', 1)
265 endif
267 if glib_conf.has('HAVE_LOCALE_H')
268 if cc.has_header_symbol('locale.h', 'LC_MESSAGES')
269 glib_conf.set('HAVE_LC_MESSAGES', 1)
270 endif
271 endif
273 struct_stat_blkprefix = '''
274 #include <sys/types.h>
275 #include <sys/stat.h>
276 #ifdef HAVE_UNISTD_H
277 #include <unistd.h>
278 #endif
279 #ifdef HAVE_SYS_STATFS_H
280 #include <sys/statfs.h>
281 #endif
282 #ifdef HAVE_SYS_PARAM_H
283 #include <sys/param.h>
284 #endif
285 #ifdef HAVE_SYS_MOUNT_H
286 #include <sys/mount.h>
287 #endif
288 '''
290 struct_members = [
291 [ 'stat', 'st_mtimensec' ],
292 [ 'stat', 'st_mtim.tv_nsec' ],
293 [ 'stat', 'st_atimensec' ],
294 [ 'stat', 'st_atim.tv_nsec' ],
295 [ 'stat', 'st_ctimensec' ],
296 [ 'stat', 'st_ctim.tv_nsec' ],
297 [ 'stat', 'st_birthtime' ],
298 [ 'stat', 'st_birthtimensec' ],
299 [ 'stat', 'st_birthtim' ],
300 [ 'stat', 'st_birthtim.tv_nsec' ],
301 [ 'stat', 'st_blksize', struct_stat_blkprefix ],
302 [ 'stat', 'st_blocks', struct_stat_blkprefix ],
303 [ 'statfs', 'f_fstypename', struct_stat_blkprefix ],
304 [ 'statfs', 'f_bavail', struct_stat_blkprefix ],
305 [ 'dirent', 'd_type', '''#include <sys/types.h>
306 #include <dirent.h>''' ],
307 [ 'statvfs', 'f_basetype', '#include <sys/statvfs.h>' ],
308 [ 'statvfs', 'f_fstypename', '#include <sys/statvfs.h>' ],
309 [ 'tm', 'tm_gmtoff', '#include <time.h>' ],
310 [ 'tm', '__tm_gmtoff', '#include <time.h>' ],
311 ]
313 foreach m : struct_members
314 header_check_prefix = glib_conf_prefix
315 if m.length() == 3
316 header_check_prefix = header_check_prefix + m[2]
317 else
318 header_check_prefix = header_check_prefix + '#include <sys/stat.h>'
319 endif
320 if cc.has_member('struct ' + m[0], m[1], prefix : header_check_prefix)
321 define = 'HAVE_STRUCT_@0@_@1@'.format(m[0].to_upper(), m[1].underscorify().to_upper())
322 glib_conf.set(define, 1)
323 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
324 else
325 endif
326 endforeach
328 # Compiler flags
329 if cc.get_id() == 'gcc' or cc.get_id() == 'clang'
330 test_c_args = [
331 '-Wall',
332 '-Wduplicated-branches',
333 '-Wmisleading-indentation',
334 '-Wstrict-prototypes',
335 '-Wunused',
336 '-Werror=declaration-after-statement',
337 '-Werror=format=2',
338 '-Werror=format-security',
339 '-Werror=implicit-function-declaration',
340 '-Werror=init-self',
341 '-Werror=missing-include-dirs',
342 '-Werror=missing-prototypes',
343 '-Werror=pointer-arith',
344 ]
345 test_c_link_args = [
346 '-Wl,-z,nodelete',
347 ]
348 if get_option('bsymbolic_functions')
349 test_c_link_args += ['-Wl,-Bsymbolic-functions']
350 endif
351 else
352 test_c_args = []
353 test_c_link_args = []
354 endif
356 add_project_arguments(cc.get_supported_arguments(test_c_args), language: 'c')
358 # FIXME: We cannot build some of the GResource tests with -z nodelete, which
359 # means we cannot use that flag in add_project_link_arguments(), and must add
360 # it to the relevant targets manually. We do the same with -Bsymbolic-functions
361 # because that is what the autotools build did.
362 # See https://github.com/mesonbuild/meson/pull/3520 for a way to eventually
363 # improve this.
364 glib_link_flags = cc.get_supported_link_arguments(test_c_link_args)
366 # Windows Support (7+)
367 if host_system == 'windows'
368 glib_conf.set('_WIN32_WINNT', '0x0601')
369 endif
371 functions = [
372 'alloca',
373 'endmntent',
374 'endservent',
375 'fallocate',
376 'fchmod',
377 'fchown',
378 'fdwalk',
379 'fsync',
380 'getc_unlocked',
381 'getfsstat',
382 'getgrgid_r',
383 'getmntent_r',
384 'getpwuid_r',
385 'getresuid',
386 'getvfsstat',
387 'gmtime_r',
388 'hasmntopt',
389 'inotify_init1',
390 'issetugid',
391 'kevent',
392 'kqueue',
393 'lchmod',
394 'lchown',
395 'link',
396 'localtime_r',
397 'lstat',
398 'mbrtowc',
399 'memalign',
400 'mmap',
401 'newlocale',
402 'pipe2',
403 'poll',
404 'prlimit',
405 'readlink',
406 'recvmmsg',
407 'sendmmsg',
408 'setenv',
409 'setmntent',
410 'strerror_r',
411 'strnlen',
412 'strsignal',
413 'strtod_l',
414 'strtoll_l',
415 'strtoull_l',
416 'symlink',
417 'timegm',
418 'unsetenv',
419 'uselocale',
420 'utimes',
421 'valloc',
422 'vasprintf',
423 'vsnprintf',
424 'wcrtomb',
425 'wcslen',
426 'wcsnlen',
427 'sysctlbyname',
428 '_NSGetEnviron',
429 ]
431 if glib_conf.has('HAVE_SYS_STATVFS_H')
432 functions += ['statvfs']
433 else
434 have_func_statvfs = false
435 endif
436 if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
437 functions += ['statfs']
438 else
439 have_func_statfs = false
440 endif
442 if host_system == 'windows'
443 iphlpapi_dep = cc.find_library('iphlpapi')
444 iphlpapi_funcs = ['if_nametoindex', 'if_indextoname']
445 foreach ifunc : iphlpapi_funcs
446 iphl_prefix = '''#define _WIN32_WINNT @0@
447 #include <winsock2.h>
448 #include <iphlpapi.h>'''.format(glib_conf.get('_WIN32_WINNT'))
449 if cc.has_function(ifunc,
450 prefix : iphl_prefix,
451 dependencies : iphlpapi_dep)
452 idefine = 'HAVE_' + ifunc.underscorify().to_upper()
453 glib_conf.set(idefine, 1)
454 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(idefine)
455 set_variable('have_func_' + ifunc, true)
456 else
457 set_variable('have_func_' + ifunc, false)
458 endif
459 endforeach
460 else
461 functions += ['if_indextoname', 'if_nametoindex']
462 endif
464 # AIX splice is something else
465 if host_system != 'aix'
466 functions += ['splice']
467 endif
469 foreach f : functions
470 if cc.has_function(f)
471 define = 'HAVE_' + f.underscorify().to_upper()
472 glib_conf.set(define, 1)
473 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
474 set_variable('have_func_' + f, true)
475 else
476 set_variable('have_func_' + f, false)
477 endif
478 endforeach
480 # Check that stpcpy() is usable; must use header
481 if cc.has_function('stpcpy', prefix : '#include <string.h>')
482 glib_conf.set('HAVE_STPCPY', 1)
483 endif
485 # Check that posix_memalign() is usable; must use header
486 if cc.has_function('posix_memalign', prefix : '#include <stdlib.h>')
487 glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
488 endif
490 # Check whether strerror_r returns char *
491 if have_func_strerror_r
492 if cc.compiles('''#define _GNU_SOURCE
493 #include <string.h>
494 int func (void) {
495 char error_string[256];
496 char *ptr = strerror_r (-2, error_string, 256);
497 char c = *strerror_r (-2, error_string, 256);
498 return c != 0 && ptr != (void*) 0L;
499 }
500 ''',
501 name : 'strerror_r() returns char *')
502 glib_conf.set('STRERROR_R_CHAR_P', 1,
503 description: 'Defined if strerror_r returns char *')
504 endif
505 endif
507 # Special-case these functions that have alternative names on Windows/MSVC
508 if cc.has_function('snprintf') or cc.has_header_symbol('stdio.h', 'snprintf')
509 glib_conf.set('HAVE_SNPRINTF', 1)
510 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF 1\n'
511 elif cc.has_function('_snprintf') or cc.has_header_symbol('stdio.h', '_snprintf')
512 hack_define = '1\n#define snprintf _snprintf'
513 glib_conf.set('HAVE_SNPRINTF', hack_define)
514 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF ' + hack_define
515 endif
517 if cc.has_function('strcasecmp')
518 glib_conf.set('HAVE_STRCASECMP', 1)
519 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP 1\n'
520 elif cc.has_function('_stricmp')
521 hack_define = '1\n#define strcasecmp _stricmp'
522 glib_conf.set('HAVE_STRCASECMP', hack_define)
523 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP ' + hack_define
524 endif
526 if cc.has_function('strncasecmp')
527 glib_conf.set('HAVE_STRNCASECMP', 1)
528 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP 1\n'
529 elif cc.has_function('_strnicmp')
530 hack_define = '1\n#define strncasecmp _strnicmp'
531 glib_conf.set('HAVE_STRNCASECMP', hack_define)
532 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP ' + hack_define
533 endif
535 if cc.has_header_symbol('sys/sysmacros.h', 'major')
536 glib_conf.set('MAJOR_IN_SYSMACROS', 1)
537 elif cc.has_header_symbol('sys/mkdev.h', 'major')
538 glib_conf.set('MAJOR_IN_MKDEV', 1)
539 elif cc.has_header_symbol('sys/types.h', 'major')
540 glib_conf.set('MAJOR_IN_TYPES', 1)
541 endif
543 if cc.has_header_symbol('dlfcn.h', 'RTLD_LAZY')
544 glib_conf.set('HAVE_RTLD_LAZY', 1)
545 endif
547 if cc.has_header_symbol('dlfcn.h', 'RTLD_NOW')
548 glib_conf.set('HAVE_RTLD_NOW', 1)
549 endif
551 if cc.has_header_symbol('dlfcn.h', 'RTLD_GLOBAL')
552 glib_conf.set('HAVE_RTLD_GLOBAL', 1)
553 endif
555 # Check whether to use statfs or statvfs
556 # Some systems have both statfs and statvfs, pick the most "native" for these
557 if have_func_statfs and have_func_statvfs
558 # on solaris and irix, statfs doesn't even have the f_bavail field
559 if not glib_conf.has('HAVE_STRUCT_STATFS_F_BAVAIL')
560 have_func_statfs = false
561 else
562 # at least on linux, statfs is the actual syscall
563 have_func_statvfs = false
564 endif
565 endif
566 if have_func_statfs
567 glib_conf.set('USE_STATFS', 1)
568 stat_func_to_use = 'statfs'
569 elif have_func_statvfs
570 glib_conf.set('USE_STATVFS', 1)
571 stat_func_to_use = 'statvfs'
572 else
573 stat_func_to_use = 'neither'
574 endif
575 message('Checking whether to use statfs or statvfs .. ' + stat_func_to_use)
577 if host_system == 'linux'
578 if cc.has_function('mkostemp',
579 prefix: '''#define _GNU_SOURCE
580 #include <stdlib.h>''')
581 glib_conf.set('HAVE_MKOSTEMP', 1)
582 endif
583 endif
585 osx_ldflags = []
586 glib_have_os_x_9_or_later = false
587 glib_have_carbon = false
588 glib_have_cocoa = false
589 if host_system == 'darwin'
590 add_languages('objc')
591 objcc = meson.get_compiler('objc')
593 osx_ldflags += ['-Wl,-framework,CoreFoundation']
595 # Mac OS X Carbon support
596 glib_have_carbon = objcc.compiles('''#include <Carbon/Carbon.h>
597 #include <CoreServices/CoreServices.h>''',
598 name : 'Mac OS X Carbon support')
600 if glib_have_carbon
601 glib_conf.set('HAVE_CARBON', true)
602 osx_ldflags += '-Wl,-framework,Carbon'
603 glib_have_os_x_9_or_later = objcc.compiles('''#include <AvailabilityMacros.h>
604 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
605 #error Compiling for minimum OS X version before 10.9
606 #endif''',
607 name : 'OS X 9 or later')
608 endif
610 # Mac OS X Cocoa support
611 glib_have_cocoa = objcc.compiles('''#include <Cocoa/Cocoa.h>
612 #ifdef GNUSTEP_BASE_VERSION
613 #error "Detected GNUstep, not Cocoa"
614 #endif''',
615 name : 'Mac OS X Cocoa support')
617 if glib_have_cocoa
618 glib_conf.set('HAVE_COCOA', true)
619 osx_ldflags += ['-Wl,-framework,Foundation', '-Wl,-framework,AppKit']
620 endif
622 # FIXME: libgio mix C and objC source files and there is no way to reliably
623 # know which language flags it's going to use to link. Add to both languages
624 # for now. See https://github.com/mesonbuild/meson/issues/3585.
625 add_project_link_arguments(osx_ldflags, language : ['objc', 'c'])
626 endif
628 # Check for futex(2)
629 if cc.links('''#include <linux/futex.h>
630 #include <sys/syscall.h>
631 #include <unistd.h>
632 int main (int argc, char ** argv) {
633 syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
634 return 0;
635 }''', name : 'futex(2) system call')
636 glib_conf.set('HAVE_FUTEX', 1)
637 endif
639 # Check for eventfd(2)
640 if cc.links('''#include <sys/eventfd.h>
641 #include <unistd.h>
642 int main (int argc, char ** argv) {
643 eventfd (0, EFD_CLOEXEC);
644 return 0;
645 }''', name : 'eventfd(2) system call')
646 glib_conf.set('HAVE_EVENTFD', 1)
647 endif
649 clock_gettime_test_code = '''
650 #include <time.h>
651 struct timespec t;
652 int main (int argc, char ** argv) {
653 return clock_gettime(CLOCK_REALTIME, &t);
654 }'''
655 librt = []
656 if cc.links(clock_gettime_test_code, name : 'clock_gettime')
657 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
658 elif cc.links(clock_gettime_test_code, args : '-lrt', name : 'clock_gettime in librt')
659 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
660 librt = cc.find_library('rt')
661 endif
663 # if statfs() takes 2 arguments (Posix) or 4 (Solaris)
664 if have_func_statfs
665 if cc.compiles(glib_conf_prefix + '''
666 #include <unistd.h>
667 #ifdef HAVE_SYS_PARAM_H
668 #include <sys/param.h>
669 #endif
670 #ifdef HAVE_SYS_VFS_H
671 #include <sys/vfs.h>
672 #endif
673 #ifdef HAVE_SYS_MOUNT_H
674 #include <sys/mount.h>
675 #endif
676 #ifdef HAVE_SYS_STATFS_H
677 #include <sys/statfs.h>
678 #endif
679 void some_func (void) {
680 struct statfs st;
681 statfs("/", &st);
682 }''', name : 'number of arguments to statfs() (n=2)')
683 glib_conf.set('STATFS_ARGS', 2)
684 elif cc.compiles(glib_conf_prefix + '''
685 #include <unistd.h>
686 #ifdef HAVE_SYS_PARAM_H
687 #include <sys/param.h>
688 #endif
689 #ifdef HAVE_SYS_VFS_H
690 #include <sys/vfs.h>
691 #endif
692 #ifdef HAVE_SYS_MOUNT_H
693 #include <sys/mount.h>
694 #endif
695 #ifdef HAVE_SYS_STATFS_H
696 #include <sys/statfs.h>
697 #endif
698 void some_func (void) {
699 struct statfs st;
700 statfs("/", &st, sizeof (st), 0);
701 }''', name : 'number of arguments to statfs() (n=4)')
702 glib_conf.set('STATFS_ARGS', 4)
703 else
704 error('Unable to determine number of arguments to statfs()')
705 endif
706 endif
708 # open takes O_DIRECTORY as an option
709 #AC_MSG_CHECKING([])
710 if cc.compiles('''#include <fcntl.h>
711 #include <sys/types.h>
712 #include <sys/stat.h>],
713 void some_func (void) {
714 open(0, O_DIRECTORY, 0);
715 }''', name : 'open() option O_DIRECTORY')
716 glib_conf.set('HAVE_OPEN_O_DIRECTORY', 1)
717 endif
719 # Check whether there is a vsnprintf() function with C99 semantics installed.
720 # AC_FUNC_VSNPRINTF_C99
721 # Check whether there is a snprintf() function with C99 semantics installed.
722 # AC_FUNC_SNPRINTF_C99
724 have_good_vsnprintf = false
725 have_good_snprintf = false
727 if host_system == 'windows' and cc.get_id() == 'msvc'
728 # Unfortunately the Visual Studio 2015+ implementations of C99-style
729 # snprintf and vsnprintf don't seem to be quite good enough.
730 # (Sorry, I don't know exactly what is the problem,
731 # but it is related to floating point formatting and decimal point vs. comma.)
732 # The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
733 # rigorous enough to notice, though.
734 glib_conf.set('HAVE_C99_SNPRINTF', false)
735 glib_conf.set('HAVE_C99_VSNPRINTF', false)
736 else
737 vsnprintf_c99_test_code = '''
738 #include <stdio.h>
739 #include <stdarg.h>
741 int
742 doit(char * s, ...)
743 {
744 char buffer[32];
745 va_list args;
746 int r;
748 va_start(args, s);
749 r = vsnprintf(buffer, 5, s, args);
750 va_end(args);
752 if (r != 7)
753 exit(1);
755 /* AIX 5.1 and Solaris seems to have a half-baked vsnprintf()
756 implementation. The above will return 7 but if you replace
757 the size of the buffer with 0, it borks! */
758 va_start(args, s);
759 r = vsnprintf(buffer, 0, s, args);
760 va_end(args);
762 if (r != 7)
763 exit(1);
765 exit(0);
766 }
768 int
769 main(void)
770 {
771 doit("1234567");
772 exit(1);
773 }'''
775 if cc_can_run
776 rres = cc.run(vsnprintf_c99_test_code, name : 'C99 vsnprintf')
777 if rres.compiled() and rres.returncode() == 0
778 glib_conf.set('HAVE_C99_VSNPRINTF', 1)
779 have_good_vsnprintf = true
780 endif
781 else
782 have_good_vsnprintf = meson.get_cross_property('have_c99_vsnprintf', false)
783 glib_conf.set('HAVE_C99_VSNPRINTF', have_good_vsnprintf)
784 endif
786 snprintf_c99_test_code = '''
787 #include <stdio.h>
788 #include <stdarg.h>
790 int
791 doit()
792 {
793 char buffer[32];
794 va_list args;
795 int r;
797 r = snprintf(buffer, 5, "1234567");
799 if (r != 7)
800 exit(1);
802 r = snprintf(buffer, 0, "1234567");
804 if (r != 7)
805 exit(1);
807 r = snprintf(NULL, 0, "1234567");
809 if (r != 7)
810 exit(1);
812 exit(0);
813 }
815 int
816 main(void)
817 {
818 doit();
819 exit(1);
820 }'''
822 if cc_can_run
823 rres = cc.run(snprintf_c99_test_code, name : 'C99 snprintf')
824 if rres.compiled() and rres.returncode() == 0
825 glib_conf.set('HAVE_C99_SNPRINTF', 1)
826 have_good_snprintf = true
827 endif
828 else
829 have_good_snprintf = meson.get_cross_property('have_c99_snprintf', false)
830 glib_conf.set('HAVE_C99_SNPRINTF', have_good_snprintf)
831 endif
832 endif
834 if host_system == 'windows'
835 glib_conf.set_quoted('EXEEXT', '.exe')
836 else
837 glib_conf.set('EXEEXT', '')
838 endif
840 if have_good_vsnprintf and have_good_snprintf
841 # Our printf is 'good' only if vsnpintf()/snprintf() supports C99 well enough
842 glib_conf.set('HAVE_GOOD_PRINTF', 1) # FIXME: Check for HAVE_UNIX98_PRINTF?
843 else
844 glib_conf.set('HAVE_VASPRINTF', 1)
845 endif
847 # Check whether the printf() family supports Unix98 %n$ positional parameters
848 # AC_FUNC_PRINTF_UNIX98
849 # Nothing uses HAVE_UNIX98_PRINTF
852 # Check for nl_langinfo and CODESET
853 # FIXME: Check for HAVE_BIND_TEXTDOMAIN_CODESET
854 if cc.links('''#include <langinfo.h>
855 int main (int argc, char ** argv) {
856 char *codeset = nl_langinfo (CODESET);
857 return 0;
858 }''', name : 'nl_langinfo and CODESET')
859 glib_conf.set('HAVE_LANGINFO_CODESET', 1)
860 glib_conf.set('HAVE_CODESET', 1)
861 endif
863 # Check for nl_langinfo and LC_TIME parts that are needed in gdatetime.c
864 if cc.links('''#include <langinfo.h>
865 int main (int argc, char ** argv) {
866 char *str;
867 str = nl_langinfo (PM_STR);
868 str = nl_langinfo (D_T_FMT);
869 str = nl_langinfo (D_FMT);
870 str = nl_langinfo (T_FMT);
871 str = nl_langinfo (T_FMT_AMPM);
872 str = nl_langinfo (MON_1);
873 str = nl_langinfo (ABMON_12);
874 str = nl_langinfo (DAY_1);
875 str = nl_langinfo (ABDAY_7);
876 return 0;
877 }''', name : 'nl_langinfo (PM_STR)')
878 glib_conf.set('HAVE_LANGINFO_TIME', 1)
879 endif
880 if cc.links('''#include <langinfo.h>
881 int main (int argc, char ** argv) {
882 char *str;
883 str = nl_langinfo (_NL_CTYPE_OUTDIGIT0_MB);
884 str = nl_langinfo (_NL_CTYPE_OUTDIGIT1_MB);
885 str = nl_langinfo (_NL_CTYPE_OUTDIGIT2_MB);
886 str = nl_langinfo (_NL_CTYPE_OUTDIGIT3_MB);
887 str = nl_langinfo (_NL_CTYPE_OUTDIGIT4_MB);
888 str = nl_langinfo (_NL_CTYPE_OUTDIGIT5_MB);
889 str = nl_langinfo (_NL_CTYPE_OUTDIGIT6_MB);
890 str = nl_langinfo (_NL_CTYPE_OUTDIGIT7_MB);
891 str = nl_langinfo (_NL_CTYPE_OUTDIGIT8_MB);
892 str = nl_langinfo (_NL_CTYPE_OUTDIGIT9_MB);
893 return 0;
894 }''', name : 'nl_langinfo (_NL_CTYPE_OUTDIGITn_MB)')
895 glib_conf.set('HAVE_LANGINFO_OUTDIGIT', 1)
896 endif
898 # Check for nl_langinfo and alternative month names
899 if cc.links('''#ifndef _GNU_SOURCE
900 # define _GNU_SOURCE
901 #endif
902 #include <langinfo.h>
903 int main (int argc, char ** argv) {
904 char *str;
905 str = nl_langinfo (ALTMON_1);
906 str = nl_langinfo (ALTMON_2);
907 str = nl_langinfo (ALTMON_3);
908 str = nl_langinfo (ALTMON_4);
909 str = nl_langinfo (ALTMON_5);
910 str = nl_langinfo (ALTMON_6);
911 str = nl_langinfo (ALTMON_7);
912 str = nl_langinfo (ALTMON_8);
913 str = nl_langinfo (ALTMON_9);
914 str = nl_langinfo (ALTMON_10);
915 str = nl_langinfo (ALTMON_11);
916 str = nl_langinfo (ALTMON_12);
917 return 0;
918 }''', name : 'nl_langinfo (ALTMON_n)')
919 glib_conf.set('HAVE_LANGINFO_ALTMON', 1)
920 endif
922 # Check for nl_langinfo and abbreviated alternative month names
923 if cc.links('''#ifndef _GNU_SOURCE
924 # define _GNU_SOURCE
925 #endif
926 #include <langinfo.h>
927 int main (int argc, char ** argv) {
928 char *str;
929 str = nl_langinfo (_NL_ALTMON_1);
930 str = nl_langinfo (_NL_ALTMON_2);
931 str = nl_langinfo (_NL_ALTMON_3);
932 str = nl_langinfo (_NL_ALTMON_4);
933 str = nl_langinfo (_NL_ALTMON_5);
934 str = nl_langinfo (_NL_ALTMON_6);
935 str = nl_langinfo (_NL_ALTMON_7);
936 str = nl_langinfo (_NL_ALTMON_8);
937 str = nl_langinfo (_NL_ALTMON_9);
938 str = nl_langinfo (_NL_ALTMON_10);
939 str = nl_langinfo (_NL_ALTMON_11);
940 str = nl_langinfo (_NL_ALTMON_12);
941 return 0;
942 }''', name : 'nl_langinfo (_NL_ALTMON_n)')
943 glib_conf.set('HAVE_LANGINFO_ABALTMON', 1)
944 endif
946 # Check if C compiler supports the 'signed' keyword
947 if not cc.compiles('''signed char x;''', name : 'signed')
948 glib_conf.set('signed', '/* NOOP */')
949 endif
951 # Check if the ptrdiff_t type exists
952 if cc.has_header_symbol('stddef.h', 'ptrdiff_t')
953 glib_conf.set('HAVE_PTRDIFF_T', 1)
954 endif
956 # Check for sig_atomic_t type
957 if cc.links('''#include <signal.h>
958 #include <sys/types.h>
959 sig_atomic_t val = 42;
960 int main (int argc, char ** argv) {
961 return val == 42 ? 0 : 1;
962 }''', name : 'sig_atomic_t')
963 glib_conf.set('HAVE_SIG_ATOMIC_T', 1)
964 endif
966 # Check if 'long long' works
967 # jm_AC_TYPE_LONG_LONG
968 if cc.compiles('''long long ll = 1LL;
969 int i = 63;
970 int some_func (void) {
971 long long llmax = (long long) -1;
972 return ll << i | ll >> i | llmax / ll | llmax % ll;
973 }''', name : 'long long')
974 glib_conf.set('HAVE_LONG_LONG', 1)
975 have_long_long = true
976 else
977 have_long_long = false
978 endif
980 # Test whether the compiler supports the 'long double' type.
981 if cc.compiles('''/* The Stardent Vistra knows sizeof(long double), but does not support it. */
982 long double foo = 0.0;
983 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
984 int array [2*(sizeof(long double) >= sizeof(double)) - 1];''',
985 name : 'long double')
986 glib_conf.set('HAVE_LONG_DOUBLE', 1)
987 endif
989 # Test whether <stddef.h> has the 'wchar_t' type.
990 if cc.has_header_symbol('stddef.h', 'wchar_t')
991 glib_conf.set('HAVE_WCHAR_T', 1)
992 endif
994 # Test whether <wchar.h> has the 'wint_t' type.
995 if cc.has_header_symbol('wchar.h', 'wint_t')
996 glib_conf.set('HAVE_WINT_T', 1)
997 endif
999 found_uintmax_t = false
1001 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
1002 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1003 # jm_AC_HEADER_INTTYPES_H
1004 if cc.compiles('''#include <sys/types.h>
1005 #include <inttypes.h>
1006 void some_func (void) {
1007 uintmax_t i = (uintmax_t) -1;
1008 }''', name : 'uintmax_t in inttypes.h')
1009 glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
1010 found_uintmax_t = true
1011 endif
1013 # Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
1014 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1015 # jm_AC_HEADER_STDINT_H
1016 if cc.compiles('''#include <sys/types.h>
1017 #include <stdint.h>
1018 void some_func (void) {
1019 uintmax_t i = (uintmax_t) -1;
1020 }''', name : 'uintmax_t in stdint.h')
1021 glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
1022 found_uintmax_t = true
1023 endif
1025 # Define intmax_t to 'long' or 'long long'
1026 # if it is not already defined in <stdint.h> or <inttypes.h>.
1027 # For simplicity, we assume that a header file defines 'intmax_t' if and
1028 # only if it defines 'uintmax_t'.
1029 if found_uintmax_t
1030 glib_conf.set('HAVE_INTMAX_T', 1)
1031 elif have_long_long
1032 glib_conf.set('intmax_t', 'long long')
1033 else
1034 glib_conf.set('intmax_t', 'long')
1035 endif
1037 char_size = cc.sizeof('char')
1038 short_size = cc.sizeof('short')
1039 int_size = cc.sizeof('int')
1040 voidp_size = cc.sizeof('void*')
1041 long_size = cc.sizeof('long')
1042 if have_long_long
1043 long_long_size = cc.sizeof('long long')
1044 else
1045 long_long_size = 0
1046 endif
1047 sizet_size = cc.sizeof('size_t')
1048 if cc.get_id() == 'msvc'
1049 ssizet_size = cc.sizeof('SSIZE_T', prefix : '#include <BaseTsd.h>')
1050 else
1051 ssizet_size = cc.sizeof('ssize_t')
1052 endif
1054 int64_m = 'll'
1055 char_align = cc.alignment('char')
1056 short_align = cc.alignment('short')
1057 int_align = cc.alignment('int')
1058 voidp_align = cc.alignment('void*')
1059 long_align = cc.alignment('long')
1060 long_long_align = cc.alignment('long long')
1061 # NOTE: We don't check for size of __int64 because long long is guaranteed to
1062 # be 64-bit in C99, and it is available on all supported compilers
1063 sizet_align = cc.alignment('size_t')
1065 glib_conf.set('ALIGNOF_UNSIGNED_LONG', long_align)
1067 glib_conf.set('SIZEOF_CHAR', char_size)
1068 glib_conf.set('SIZEOF_INT', int_size)
1069 glib_conf.set('SIZEOF_SHORT', short_size)
1070 glib_conf.set('SIZEOF_LONG', long_size)
1071 glib_conf.set('SIZEOF_LONG_LONG', long_long_size)
1072 glib_conf.set('SIZEOF_SIZE_T', sizet_size)
1073 glib_conf.set('SIZEOF_SSIZE_T', ssizet_size)
1074 glib_conf.set('SIZEOF_VOID_P', voidp_size)
1076 if short_size == 2
1077 gint16 = 'short'
1078 gint16_modifier='h'
1079 gint16_format='hi'
1080 guint16_format='hu'
1081 elif int_size == 2
1082 gint16 = 'int'
1083 gint16_modifier=''
1084 gint16_format='i'
1085 guint16_format='u'
1086 else
1087 error('Compiler provides no native 16-bit integer type')
1088 endif
1089 glibconfig_conf.set('gint16', gint16)
1090 glibconfig_conf.set_quoted('gint16_modifier', gint16_modifier)
1091 glibconfig_conf.set_quoted('gint16_format', gint16_format)
1092 glibconfig_conf.set_quoted('guint16_format', guint16_format)
1094 if short_size == 4
1095 gint32 = 'short'
1096 gint32_modifier='h'
1097 gint32_format='hi'
1098 guint32_format='hu'
1099 guint32_align = short_align
1100 elif int_size == 4
1101 gint32 = 'int'
1102 gint32_modifier=''
1103 gint32_format='i'
1104 guint32_format='u'
1105 guint32_align = int_align
1106 elif long_size == 4
1107 gint32 = 'long'
1108 gint32_modifier='l'
1109 gint32_format='li'
1110 guint32_format='lu'
1111 guint32_align = long_align
1112 else
1113 error('Compiler provides no native 32-bit integer type')
1114 endif
1115 glibconfig_conf.set('gint32', gint32)
1116 glibconfig_conf.set_quoted('gint32_modifier', gint32_modifier)
1117 glibconfig_conf.set_quoted('gint32_format', gint32_format)
1118 glibconfig_conf.set_quoted('guint32_format', guint32_format)
1119 glib_conf.set('ALIGNOF_GUINT32', guint32_align)
1121 if int_size == 8
1122 gint64 = 'int'
1123 gint64_modifier=''
1124 gint64_format='i'
1125 guint64_format='u'
1126 glib_extension=''
1127 gint64_constant='(val)'
1128 guint64_constant='(val)'
1129 guint64_align = int_align
1130 elif long_size == 8
1131 gint64 = 'long'
1132 glib_extension=''
1133 gint64_modifier='l'
1134 gint64_format='li'
1135 guint64_format='lu'
1136 gint64_constant='(val##L)'
1137 guint64_constant='(val##UL)'
1138 guint64_align = long_align
1139 elif long_long_size == 8
1140 gint64 = 'long long'
1141 glib_extension='G_GNUC_EXTENSION '
1142 gint64_modifier=int64_m
1143 gint64_format=int64_m + 'i'
1144 guint64_format=int64_m + 'u'
1145 gint64_constant='(G_GNUC_EXTENSION (val##LL))'
1146 guint64_constant='(G_GNUC_EXTENSION (val##ULL))'
1147 guint64_align = long_long_align
1148 else
1149 error('Compiler provides no native 64-bit integer type')
1150 endif
1151 glibconfig_conf.set('glib_extension', glib_extension)
1152 glibconfig_conf.set('gint64', gint64)
1153 glibconfig_conf.set_quoted('gint64_modifier', gint64_modifier)
1154 glibconfig_conf.set_quoted('gint64_format', gint64_format)
1155 glibconfig_conf.set_quoted('guint64_format', guint64_format)
1156 glibconfig_conf.set('gint64_constant', gint64_constant)
1157 glibconfig_conf.set('guint64_constant', guint64_constant)
1158 glib_conf.set('ALIGNOF_GUINT64', guint64_align)
1160 if host_system == 'windows'
1161 glibconfig_conf.set('g_pid_type', 'void*')
1162 glibconfig_conf.set_quoted('g_pid_format', 'p')
1163 if host_machine.cpu_family() == 'x86_64'
1164 glibconfig_conf.set_quoted('g_pollfd_format', '%#' + int64_m + 'x')
1165 else
1166 glibconfig_conf.set_quoted('g_pollfd_format', '%#x')
1167 endif
1168 glibconfig_conf.set('g_dir_separator', '\\\\')
1169 glibconfig_conf.set('g_searchpath_separator', ';')
1170 else
1171 glibconfig_conf.set('g_pid_type', 'int')
1172 glibconfig_conf.set_quoted('g_pid_format', 'i')
1173 glibconfig_conf.set_quoted('g_pollfd_format', '%d')
1174 glibconfig_conf.set('g_dir_separator', '/')
1175 glibconfig_conf.set('g_searchpath_separator', ':')
1176 endif
1178 if sizet_size == short_size
1179 glibconfig_conf.set('glib_size_type_define', 'short')
1180 glibconfig_conf.set_quoted('gsize_modifier', 'h')
1181 glibconfig_conf.set_quoted('gssize_modifier', 'h')
1182 glibconfig_conf.set_quoted('gsize_format', 'hu')
1183 glibconfig_conf.set_quoted('gssize_format', 'hi')
1184 glibconfig_conf.set('glib_msize_type', 'SHRT')
1185 elif sizet_size == int_size
1186 glibconfig_conf.set('glib_size_type_define', 'int')
1187 glibconfig_conf.set_quoted('gsize_modifier', '')
1188 glibconfig_conf.set_quoted('gssize_modifier', '')
1189 glibconfig_conf.set_quoted('gsize_format', 'u')
1190 glibconfig_conf.set_quoted('gssize_format', 'i')
1191 glibconfig_conf.set('glib_msize_type', 'INT')
1192 elif sizet_size == long_size
1193 glibconfig_conf.set('glib_size_type_define', 'long')
1194 glibconfig_conf.set_quoted('gsize_modifier', 'l')
1195 glibconfig_conf.set_quoted('gssize_modifier', 'l')
1196 glibconfig_conf.set_quoted('gsize_format', 'lu')
1197 glibconfig_conf.set_quoted('gssize_format', 'li')
1198 glibconfig_conf.set('glib_msize_type', 'LONG')
1199 elif sizet_size == long_long_size
1200 glibconfig_conf.set('glib_size_type_define', 'long long')
1201 glibconfig_conf.set_quoted('gsize_modifier', int64_m)
1202 glibconfig_conf.set_quoted('gssize_modifier', int64_m)
1203 glibconfig_conf.set_quoted('gsize_format', int64_m + 'u')
1204 glibconfig_conf.set_quoted('gssize_format', int64_m + 'i')
1205 glibconfig_conf.set('glib_msize_type', 'INT64')
1206 else
1207 error('Could not determine size of size_t.')
1208 endif
1210 if voidp_size == int_size
1211 glibconfig_conf.set('glib_intptr_type_define', 'int')
1212 glibconfig_conf.set_quoted('gintptr_modifier', '')
1213 glibconfig_conf.set_quoted('gintptr_format', 'i')
1214 glibconfig_conf.set_quoted('guintptr_format', 'u')
1215 glibconfig_conf.set('glib_gpi_cast', '(gint)')
1216 glibconfig_conf.set('glib_gpui_cast', '(guint)')
1217 elif voidp_size == long_size
1218 glibconfig_conf.set('glib_intptr_type_define', 'long')
1219 glibconfig_conf.set_quoted('gintptr_modifier', 'l')
1220 glibconfig_conf.set_quoted('gintptr_format', 'li')
1221 glibconfig_conf.set_quoted('guintptr_format', 'lu')
1222 glibconfig_conf.set('glib_gpi_cast', '(glong)')
1223 glibconfig_conf.set('glib_gpui_cast', '(gulong)')
1224 elif voidp_size == long_long_size
1225 glibconfig_conf.set('glib_intptr_type_define', 'long long')
1226 glibconfig_conf.set_quoted('gintptr_modifier', int64_m)
1227 glibconfig_conf.set_quoted('gintptr_format', int64_m + 'i')
1228 glibconfig_conf.set_quoted('guintptr_format', int64_m + 'u')
1229 glibconfig_conf.set('glib_gpi_cast', '(gint64)')
1230 glibconfig_conf.set('glib_gpui_cast', '(guint64)')
1231 else
1232 error('Could not determine size of void *')
1233 endif
1235 if long_size != 8 and long_long_size != 8 and int_size != 8
1236 error('GLib requires a 64-bit type. You might want to consider using the GNU C compiler.')
1237 endif
1239 glibconfig_conf.set('gintbits', int_size * 8)
1240 glibconfig_conf.set('glongbits', long_size * 8)
1241 glibconfig_conf.set('gsizebits', sizet_size * 8)
1242 glibconfig_conf.set('gssizebits', ssizet_size * 8)
1244 # FIXME: maybe meson should tell us the libsuffix?
1245 if host_system == 'windows'
1246 g_module_suffix = 'dll'
1247 elif host_system == 'darwin'
1248 g_module_suffix = 'dylib'
1249 else
1250 g_module_suffix = 'so'
1251 endif
1252 glibconfig_conf.set('g_module_suffix', g_module_suffix)
1254 glibconfig_conf.set('GLIB_MAJOR_VERSION', major_version)
1255 glibconfig_conf.set('GLIB_MINOR_VERSION', minor_version)
1256 glibconfig_conf.set('GLIB_MICRO_VERSION', micro_version)
1257 glibconfig_conf.set('GLIB_VERSION', glib_version)
1259 glibconfig_conf.set('glib_void_p', voidp_size)
1260 glibconfig_conf.set('glib_long', long_size)
1261 glibconfig_conf.set('glib_size_t', sizet_size)
1262 glibconfig_conf.set('glib_ssize_t', ssizet_size)
1263 if host_machine.endian() == 'big'
1264 glibconfig_conf.set('g_byte_order', 'G_BIG_ENDIAN')
1265 glibconfig_conf.set('g_bs_native', 'BE')
1266 glibconfig_conf.set('g_bs_alien', 'LE')
1267 else
1268 glibconfig_conf.set('g_byte_order', 'G_LITTLE_ENDIAN')
1269 glibconfig_conf.set('g_bs_native', 'LE')
1270 glibconfig_conf.set('g_bs_alien', 'BE')
1271 endif
1273 # === va_copy checks ===
1274 # we currently check for all three va_copy possibilities, so we get
1275 # all results in config.log for bug reports.
1277 va_copy_func = ''
1278 foreach try_func : [ '__va_copy', 'va_copy' ]
1279 if cc.compiles('''#include <stdarg.h>
1280 #include <stdlib.h>
1281 #ifdef _MSC_VER
1282 # include "msvc_recommended_pragmas.h"
1283 #endif
1284 void f (int i, ...) {
1285 va_list args1, args2;
1286 va_start (args1, i);
1287 @0@ (args2, args1);
1288 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1289 exit (1);
1290 va_end (args1); va_end (args2);
1291 }
1292 int main() {
1293 f (0, 42);
1294 return 0;
1295 }'''.format(try_func),
1296 name : try_func + ' check')
1297 va_copy_func = try_func
1298 endif
1299 endforeach
1300 if va_copy_func != ''
1301 glib_conf.set('G_VA_COPY', va_copy_func)
1302 glib_vacopy = '#define G_VA_COPY ' + va_copy_func
1303 else
1304 glib_vacopy = '/* #undef G_VA_COPY */'
1305 endif
1307 va_list_val_copy_prog = '''
1308 #include <stdarg.h>
1309 #include <stdlib.h>
1310 void f (int i, ...) {
1311 va_list args1, args2;
1312 va_start (args1, i);
1313 args2 = args1;
1314 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1315 exit (1);
1316 va_end (args1); va_end (args2);
1317 }
1318 int main() {
1319 f (0, 42);
1320 return 0;
1321 }'''
1323 if cc_can_run
1324 rres = cc.run(va_list_val_copy_prog, name : 'va_lists can be copied as values')
1325 glib_va_val_copy = rres.returncode() == 0
1326 else
1327 glib_va_val_copy = meson.get_cross_property('va_val_copy', true)
1328 endif
1329 if not glib_va_val_copy
1330 glib_vacopy = glib_vacopy + '\n#define G_VA_COPY_AS_ARRAY 1'
1331 glib_conf.set('G_VA_COPY_AS_ARRAY', 1)
1332 endif
1333 glibconfig_conf.set('glib_vacopy', glib_vacopy)
1335 # check for flavours of varargs macros
1336 g_have_iso_c_varargs = cc.compiles('''
1337 void some_func (void) {
1338 int a(int p1, int p2, int p3);
1339 #define call_a(...) a(1,__VA_ARGS__)
1340 call_a(2,3);
1341 }''', name : 'ISO C99 varargs macros in C')
1343 if g_have_iso_c_varargs
1344 glibconfig_conf.set('g_have_iso_c_varargs', '''
1345 #ifndef __cplusplus
1346 # define G_HAVE_ISO_VARARGS 1
1347 #endif''')
1348 endif
1350 g_have_iso_cxx_varargs = cxx.compiles('''
1351 void some_func (void) {
1352 int a(int p1, int p2, int p3);
1353 #define call_a(...) a(1,__VA_ARGS__)
1354 call_a(2,3);
1355 }''', name : 'ISO C99 varargs macros in C++')
1357 if g_have_iso_cxx_varargs
1358 glibconfig_conf.set('g_have_iso_cxx_varargs', '''
1359 #ifdef __cplusplus
1360 # define G_HAVE_ISO_VARARGS 1
1361 #endif''')
1362 endif
1364 g_have_gnuc_varargs = cc.compiles('''
1365 void some_func (void) {
1366 int a(int p1, int p2, int p3);
1367 #define call_a(params...) a(1,params)
1368 call_a(2,3);
1369 }''', name : 'GNUC varargs macros')
1371 if cc.has_header('alloca.h')
1372 glibconfig_conf.set('GLIB_HAVE_ALLOCA_H', true)
1373 endif
1374 has_syspoll = cc.has_header('sys/poll.h')
1375 has_systypes = cc.has_header('sys/types.h')
1376 if has_syspoll
1377 glibconfig_conf.set('GLIB_HAVE_SYS_POLL_H', true)
1378 endif
1379 has_winsock2 = cc.has_header('winsock2.h')
1381 if has_syspoll and has_systypes
1382 poll_includes = '''
1383 #include<sys/poll.h>
1384 #include<sys/types.h>'''
1385 elif has_winsock2
1386 poll_includes = '''
1387 #define _WIN32_WINNT @0@
1388 #include <winsock2.h>'''.format(glib_conf.get('_WIN32_WINNT'))
1389 else
1390 # FIXME?
1391 error('FIX POLL* defines')
1392 endif
1394 poll_defines = [
1395 [ 'POLLIN', 'g_pollin', 1 ],
1396 [ 'POLLOUT', 'g_pollout', 4 ],
1397 [ 'POLLPRI', 'g_pollpri', 2 ],
1398 [ 'POLLERR', 'g_pollerr', 8 ],
1399 [ 'POLLHUP', 'g_pollhup', 16 ],
1400 [ 'POLLNVAL', 'g_pollnval', 32 ],
1401 ]
1403 if has_syspoll and has_systypes
1404 foreach d : poll_defines
1405 val = cc.compute_int(d[0], prefix: poll_includes)
1406 glibconfig_conf.set(d[1], val)
1407 endforeach
1408 elif has_winsock2
1409 # Due to a missed bug in configure.ac the poll test
1410 # never succeeded on Windows and used some pre-defined
1411 # values as a fallback. Keep using them to maintain
1412 # ABI compatibility with autotools builds of glibs
1413 # and with *any* glib-using code compiled against them,
1414 # since these values end up in a public header glibconfig.h.
1415 foreach d : poll_defines
1416 glibconfig_conf.set(d[1], d[2])
1417 endforeach
1418 endif
1420 # Internet address families
1421 # FIXME: what about Cygwin (G_WITH_CYGWIN)
1422 if host_system == 'windows'
1423 inet_includes = '''
1424 #include <winsock2.h>'''
1425 else
1426 inet_includes = '''
1427 #include <sys/types.h>
1428 #include <sys/socket.h>'''
1429 endif
1431 inet_defines = [
1432 [ 'AF_UNIX', 'g_af_unix' ],
1433 [ 'AF_INET', 'g_af_inet' ],
1434 [ 'AF_INET6', 'g_af_inet6' ],
1435 [ 'MSG_OOB', 'g_msg_oob' ],
1436 [ 'MSG_PEEK', 'g_msg_peek' ],
1437 [ 'MSG_DONTROUTE', 'g_msg_dontroute' ],
1438 ]
1439 foreach d : inet_defines
1440 val = cc.compute_int(d[0], prefix: inet_includes)
1441 glibconfig_conf.set(d[1], val)
1442 endforeach
1444 glibconfig_conf.set('GLIB_USING_SYSTEM_PRINTF', true) # FIXME!
1446 # We need a more robust approach here...
1447 host_cpu_family = host_machine.cpu_family()
1448 if host_cpu_family == 'x86' or host_cpu_family == 'x86_64' or host_cpu_family == 's390' or host_cpu_family == 's390x' or host_cpu_family.startswith('arm') or host_cpu_family.startswith('crisv32') or host_cpu_family.startswith('etrax')
1449 glib_memory_barrier_needed = false
1450 elif host_cpu_family.startswith('sparc') or host_cpu_family.startswith('alpha') or host_cpu_family.startswith('powerpc') or host_cpu_family == 'ia64'
1451 glib_memory_barrier_needed = true
1452 else
1453 warning('Unknown host cpu: ' + host_cpu_family)
1454 glib_memory_barrier_needed = true
1455 endif
1456 glibconfig_conf.set('G_ATOMIC_OP_MEMORY_BARRIER_NEEDED', glib_memory_barrier_needed)
1458 # We need to decide at configure time if GLib will use real atomic
1459 # operations ("lock free") or emulated ones with a mutex. This is
1460 # because we must put this information in glibconfig.h so we know if
1461 # it is safe or not to inline using compiler intrinsics directly from
1462 # the header.
1463 #
1464 # We also publish the information via G_ATOMIC_LOCK_FREE in case the
1465 # user is interested in knowing if they can use the atomic ops across
1466 # processes.
1467 #
1468 # We can currently support the atomic ops natively when building GLib
1469 # with recent versions of GCC or MSVC.
1470 #
1471 # Note that the atomic ops are only available with GCC on x86 when
1472 # using -march=i486 or higher. If we detect that the atomic ops are
1473 # not available but would be available given the right flags, we want
1474 # to abort and advise the user to fix their CFLAGS. It's better to do
1475 # that then to silently fall back on emulated atomic ops just because
1476 # the user had the wrong build environment.
1477 atomictest = '''int main() {
1478 volatile int atomic = 2;
1479 __sync_bool_compare_and_swap (&atomic, 2, 3);
1480 return 0;
1481 }
1482 '''
1484 atomicdefine = '''
1485 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1486 #error "compiler has atomic ops, but doesn't define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"
1487 #endif
1488 '''
1490 # We know that we can always use real ("lock free") atomic operations with MSVC
1491 if cc.get_id() == 'msvc' or cc.links(atomictest, name : 'atomic ops')
1492 have_atomic_lock_free = true
1493 if host_system == 'android' and not cc.compiles(atomicdefine, name : 'atomic ops define')
1494 # When building for armv5 on Android, gcc 4.9 provides
1495 # __sync_bool_compare_and_swap but doesn't define
1496 # __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1497 glib_conf.set('__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4', true)
1498 endif
1499 else
1500 have_atomic_lock_free = false
1501 if host_machine.cpu_family() == 'x86' and cc.links(atomictest, args : '-march=i486')
1502 error('GLib must be built with -march=i486 or later.')
1503 endif
1504 endif
1505 glibconfig_conf.set('G_ATOMIC_LOCK_FREE', have_atomic_lock_free)
1507 # === Threads ===
1509 # Determination of thread implementation
1510 if host_system == 'windows' and not get_option('force_posix_threads')
1511 thread_dep = []
1512 threads_implementation = 'win32'
1513 glibconfig_conf.set('g_threads_impl_def', 'WIN32')
1514 glib_conf.set('THREADS_WIN32', 1)
1515 else
1516 # FIXME: probably needs more tweaking in meson for things like -D_REENTRANT etc.
1517 thread_dep = dependency('threads')
1518 threads_implementation = 'posix'
1519 pthread_prefix = '''
1520 #ifndef _GNU_SOURCE
1521 # define _GNU_SOURCE
1522 #endif
1523 #include <pthread.h>'''
1524 glibconfig_conf.set('g_threads_impl_def', 'POSIX')
1525 glib_conf.set('THREADS_POSIX', 1)
1526 if cc.has_header_symbol('pthread.h', 'pthread_attr_setstacksize')
1527 glib_conf.set('HAVE_PTHREAD_ATTR_SETSTACKSIZE', 1)
1528 endif
1529 if cc.has_header_symbol('pthread.h', 'pthread_condattr_setclock')
1530 glib_conf.set('HAVE_PTHREAD_CONDATTR_SETCLOCK', 1)
1531 endif
1532 if cc.has_header_symbol('pthread.h', 'pthread_cond_timedwait_relative_np')
1533 glib_conf.set('HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP', 1)
1534 endif
1535 if cc.has_header_symbol('pthread.h', 'pthread_getname_np', prefix : pthread_prefix)
1536 glib_conf.set('HAVE_PTHREAD_GETNAME_NP', 1)
1537 endif
1538 # Assume that pthread_setname_np is available in some form; same as configure
1539 if cc.links(pthread_prefix + '''
1540 int main() {
1541 pthread_setname_np("example");
1542 return 0;
1543 }''',
1544 name : 'pthread_setname_np(const char*)',
1545 dependencies : thread_dep)
1546 # macOS and iOS
1547 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
1548 elif cc.links(pthread_prefix + '''
1549 int main() {
1550 pthread_setname_np(pthread_self(), "example");
1551 return 0;
1552 }''',
1553 name : 'pthread_setname_np(pthread_t, const char*)',
1554 dependencies : thread_dep)
1555 # Linux, Solaris, etc.
1556 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
1557 endif
1558 endif
1560 # FIXME: we should make it print the result and always return 0, so that
1561 # the output in meson shows up as green
1562 stack_grows_check_prog = '''
1563 volatile int *a = 0, *b = 0;
1564 void f (int i) {
1565 volatile int x = 5;
1566 if (i == 0)
1567 b = &x;
1568 else
1569 f (i - 1);
1570 }
1571 int main () {
1572 volatile int y = 7;
1573 a = &y;
1574 f (100);
1575 return b > a ? 0 : 1;
1576 }'''
1578 if cc_can_run
1579 rres = cc.run(stack_grows_check_prog, name : 'stack grows check')
1580 growing_stack = rres.returncode() == 0
1581 else
1582 growing_stack = meson.get_cross_property('growing_stack', false)
1583 endif
1585 glibconfig_conf.set('G_HAVE_GROWING_STACK', growing_stack)
1587 # Tests for iconv
1588 #
1589 # USE_LIBICONV_GNU: Using GNU libiconv
1590 # USE_LIBICONV_NATIVE: Using a native impl of iconv in a separate library
1591 #
1592 # We should never use the MinGW C library's iconv. On Windows we use the
1593 # GNU implementation that ships with MinGW.
1595 # On Windows, just always use the built-in implementation
1596 if host_system == 'windows'
1597 libiconv = []
1598 glib_conf.set('USE_LIBICONV_NATIVE', true)
1599 else
1600 found_iconv = false
1601 iconv_opt = get_option('iconv')
1602 if iconv_opt == 'libc'
1603 if cc.has_function('iconv_open')
1604 libiconv = []
1605 found_iconv = true
1606 endif
1607 elif iconv_opt == 'gnu'
1608 if cc.has_header_symbol('iconv.h', 'libiconv_open')
1609 glib_conf.set('USE_LIBICONV_GNU', true)
1610 libiconv = [cc.find_library('iconv')]
1611 found_iconv = true
1612 endif
1613 elif iconv_opt == 'native'
1614 if cc.has_header_symbol('iconv.h', 'iconv_open')
1615 glib_conf.set('USE_LIBICONV_NATIVE', true)
1616 libiconv = [cc.find_library('iconv')]
1617 found_iconv = true
1618 endif
1619 endif
1621 if not found_iconv
1622 error('iconv implementation "@0@" not found'.format(iconv_opt))
1623 endif
1625 endif
1627 if get_option('internal_pcre')
1628 pcre = []
1629 use_system_pcre = false
1630 else
1631 pcre = dependency('libpcre', required : false) # Should check for Unicode support, too. FIXME
1632 if not pcre.found()
1633 if cc.get_id() == 'msvc'
1634 # MSVC: Search for the PCRE library by the configuration, which corresponds
1635 # to the output of CMake builds of PCRE. Note that debugoptimized
1636 # is really a Release build with .PDB files.
1637 if buildtype == 'debug'
1638 pcre = cc.find_library('pcred', required : false)
1639 else
1640 pcre = cc.find_library('pcre', required : false)
1641 endif
1642 endif
1643 endif
1644 use_system_pcre = pcre.found()
1645 endif
1646 glib_conf.set('USE_SYSTEM_PCRE', use_system_pcre)
1648 use_pcre_static_flag = false
1650 if host_system == 'windows'
1651 if not use_system_pcre
1652 use_pcre_static_flag = true
1653 else
1654 pcre_static = cc.links('''#define PCRE_STATIC
1655 #include <pcre.h>
1656 int main() {
1657 void *p = NULL;
1658 pcre_free(p);
1659 return 0;
1660 }''',
1661 dependencies: pcre,
1662 name : 'Windows system PCRE is a static build')
1663 if pcre_static
1664 use_pcre_static_flag = true
1665 endif
1666 endif
1667 endif
1669 libm = cc.find_library('m', required : false)
1670 libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])
1671 if cc.get_id() != 'msvc'
1672 libz_dep = dependency('zlib', fallback : ['zlib', 'zlib_dep'])
1673 else
1674 # MSVC: Don't use the bundled ZLib sources until we are sure that we can't
1675 # find the ZLib .lib
1676 libz_dep = dependency('zlib', required : false)
1678 # MSVC: Search for the ZLib .lib, which corresponds to the results of
1679 # of using ZLib's win32/makefile.msc.
1680 if not libz_dep.found()
1681 libz_dep = cc.find_library('zlib1', required : false)
1682 if not libz_dep.found()
1683 libz_dep = cc.find_library('zlib', required : false)
1684 if not libz_dep.found()
1685 libz_dep = subproject('zlib').get_variable('zlib_dep')
1686 endif
1687 endif
1688 endif
1689 endif
1691 # First check in libc, fallback to libintl, and as last chance build
1692 # proxy-libintl subproject.
1693 # FIXME: glib-gettext.m4 has much more checks to detect broken/uncompatible
1694 # implementations. This could be extended if issues are found in some platforms.
1695 if cc.has_function('ngettext')
1696 libintl = []
1697 else
1698 libintl = cc.find_library('intl', required : false)
1699 if not libintl.found()
1700 libintl = subproject('proxy-libintl').get_variable('intl_dep')
1701 endif
1702 endif
1704 # We require gettext to always be present
1705 glib_conf.set('HAVE_DCGETTEXT', 1)
1706 glib_conf.set('HAVE_GETTEXT', 1)
1708 glib_conf.set_quoted('GLIB_LOCALE_DIR', join_paths(glib_datadir, 'locale'))
1709 # xgettext is optional (on Windows for instance)
1710 xgettext = find_program('xgettext', required : false)
1712 # libmount is only used by gio, but we need to fetch the libs to generate the
1713 # pkg-config file below
1714 libmount_dep = []
1715 if host_system == 'linux' and get_option('libmount')
1716 libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
1717 glib_conf.set('HAVE_LIBMOUNT', 1)
1718 endif
1720 if host_system == 'windows'
1721 winsock2 = cc.find_library('ws2_32')
1722 endif
1724 selinux_dep = []
1725 if host_system == 'linux' and get_option('selinux')
1726 selinux_dep = [dependency('libselinux')]
1727 glib_conf.set('HAVE_SELINUX', 1)
1728 endif
1730 xattr_dep = []
1731 if host_system != 'windows' and get_option('xattr')
1732 # either glibc or libattr can provide xattr support
1733 # for both of them, we check for getxattr being in
1734 # the library and a valid xattr header.
1736 # try glibc
1737 if cc.has_function('getxattr') and cc.has_header('sys/xattr.h')
1738 glib_conf.set('HAVE_SYS_XATTR_H', 1)
1739 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_SYS_XATTR_H')
1740 #failure. try libattr
1741 elif cc.has_header_symbol('attr/xattr.h', 'getxattr')
1742 glib_conf.set('HAVE_ATTR_XATTR_H', 1)
1743 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_ATTR_XATTR_H')
1744 xattr_dep = [cc.find_library('xattr')]
1745 else
1746 error('No getxattr implementation found in C library or libxattr')
1747 endif
1749 glib_conf.set('HAVE_XATTR', 1)
1750 if cc.compiles(glib_conf_prefix + '''
1751 #include <stdio.h>
1752 #ifdef HAVE_SYS_TYPES_H
1753 #include <sys/types.h>
1754 #endif
1755 #ifdef HAVE_SYS_XATTR_H
1756 #include <sys/xattr.h>
1757 #elif HAVE_ATTR_XATTR_H
1758 #include <attr/xattr.h>
1759 #endif
1761 int main (void) {
1762 ssize_t len = getxattr("", "", NULL, 0, 0, XATTR_NOFOLLOW);
1763 return len;
1764 }''',
1765 name : 'XATTR_NOFOLLOW')
1766 glib_conf.set('HAVE_XATTR_NOFOLLOW', 1)
1767 endif
1768 endif
1770 # Test if we have strlcpy/strlcat with a compatible implementation:
1771 # https://bugzilla.gnome.org/show_bug.cgi?id=53933
1772 if cc_can_run
1773 rres = cc.run('''#include <stdlib.h>
1774 #include <string.h>
1775 int main() {
1776 char p[10];
1777 (void) strlcpy (p, "hi", 10);
1778 if (strlcat (p, "bye", 0) != 3)
1779 return 1;
1780 return 0;
1781 }''',
1782 name : 'OpenBSD strlcpy/strlcat')
1783 if rres.compiled() and rres.returncode() == 0
1784 glib_conf.set('HAVE_STRLCPY', 1)
1785 endif
1786 elif meson.get_cross_property('have_strlcpy', false)
1787 glib_conf.set('HAVE_STRLCPY', 1)
1788 endif
1790 python = import('python3').find_python()
1792 # Determine which user environment-dependent files that we want to install
1793 have_bash = find_program('bash', required : false).found() # For completion scripts
1794 have_m4 = find_program('m4', required : false).found() # For m4 macros
1795 have_sh = find_program('sh', required : false).found() # For glib-gettextize
1797 # FIXME: defines in config.h that are not actually used anywhere
1798 # (we add them for now to minimise the diff)
1799 glib_conf.set('HAVE_DLFCN_H', 1)
1800 glib_conf.set('STDC_HEADERS', 1)
1801 glib_conf.set('SIZEOF___INT64', 8)
1803 # FIXME: How to detect Solaris? https://github.com/mesonbuild/meson/issues/1578
1804 if host_system == 'sunos'
1805 glib_conf.set('_XOPEN_SOURCE_EXTENDED', 1)
1806 glib_conf.set('_XOPEN_SOURCE', 2)
1807 glib_conf.set('__EXTENSIONS__',1)
1808 endif
1810 # Sadly Meson does not expose this value:
1811 # https://github.com/mesonbuild/meson/pull/3460
1812 if host_system == 'windows'
1813 # Autotools explicitly removed --Wl,--export-all-symbols from windows builds,
1814 # with no explanation. Do the same here for now but this could be revisited if
1815 # if causes issues.
1816 export_dynamic_ldflags = []
1817 elif host_system == 'cygwin'
1818 export_dynamic_ldflags = ['-Wl,--export-all-symbols']
1819 elif host_system == 'darwin'
1820 export_dynamic_ldflags = []
1821 else
1822 export_dynamic_ldflags = ['-Wl,--export-dynamic']
1823 endif
1825 win32_cflags = []
1826 win32_ldflags = []
1827 if host_system == 'windows' and cc.get_id() != 'msvc'
1828 # Ensure MSVC-compatible struct packing convention is used when
1829 # compiling for Win32 with gcc. It is used for the whole project and exposed
1830 # in glib-2.0.pc.
1831 win32_cflags = ['-mms-bitfields']
1832 add_project_arguments(win32_cflags, language : 'c')
1834 # Win32 API libs, used only by libglib and exposed in glib-2.0.pc
1835 win32_ldflags = ['-lws2_32', '-lole32', '-lwinmm', '-lshlwapi']
1836 elif host_system == 'cygwin'
1837 win32_ldflags = ['-luser32', '-lkernel32']
1838 endif
1840 # Tracing: dtrace
1841 want_dtrace = get_option('dtrace')
1842 enable_dtrace = false
1844 # Since dtrace support is opt-in we just error out if it was requested but
1845 # is not available. We don't bother with autodetection yet.
1846 if want_dtrace
1847 if glib_have_carbon
1848 error('GLib dtrace support not yet compatible with macOS dtrace')
1849 endif
1850 dtrace = find_program('dtrace', required : true) # error out if not found
1851 if not cc.has_header('sys/sdt.h')
1852 error('dtrace support needs sys/sdt.h header')
1853 endif
1854 # FIXME: autotools build also passes -fPIC -DPIC but is it needed in this case?
1855 dtrace_obj_gen = generator(dtrace,
1856 output : '@BASENAME@.o',
1857 arguments : ['-G', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1858 # FIXME: $(SED) -e "s,define STAP_HAS_SEMAPHORES 1,undef STAP_HAS_SEMAPHORES,"
1859 # -e "s,define _SDT_HAS_SEMAPHORES 1,undef _SDT_HAS_SEMAPHORES,"
1860 dtrace_hdr_gen = generator(dtrace,
1861 output : '@BASENAME@.h',
1862 arguments : ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1863 glib_conf.set('HAVE_DTRACE', 1)
1864 enable_dtrace = true
1865 endif
1867 # systemtap
1868 want_systemtap = get_option('systemtap')
1869 enable_systemtap = false
1871 if want_systemtap and enable_dtrace
1872 tapset_install_dir = get_option('tapset_install_dir')
1873 if tapset_install_dir == ''
1874 tapset_install_dir = join_paths(get_option('datadir'), 'systemtap/tapset', host_machine.cpu_family())
1875 endif
1876 stp_cdata = configuration_data()
1877 stp_cdata.set('ABS_GLIB_RUNTIME_LIBDIR', glib_libdir)
1878 stp_cdata.set('LT_CURRENT', minor_version * 100)
1879 stp_cdata.set('LT_REVISION', micro_version)
1880 enable_systemtap = true
1881 endif
1884 pkg = import('pkgconfig')
1885 windows = import('windows')
1886 subdir('glib')
1887 subdir('gobject')
1888 subdir('gthread')
1889 subdir('gmodule')
1890 subdir('gio')
1891 if xgettext.found()
1892 subdir('po')
1893 endif
1894 subdir('tests')
1896 # Install glib-gettextize executable, if a UNIX-style shell is found
1897 if have_sh
1898 # These should not contain " quotes around the values
1899 gettexize_conf = configuration_data()
1900 gettexize_conf.set('PACKAGE', 'glib')
1901 gettexize_conf.set('VERSION', meson.project_version())
1902 gettexize_conf.set('prefix', glib_prefix)
1903 gettexize_conf.set('datarootdir', glib_datadir)
1904 gettexize_conf.set('datadir', glib_datadir)
1905 configure_file(input : 'glib-gettextize.in',
1906 install : true,
1907 install_dir : 'bin',
1908 output : 'glib-gettextize',
1909 configuration : gettexize_conf)
1910 endif
1912 if have_m4
1913 # Install m4 macros that other projects use
1914 install_data('m4macros/glib-2.0.m4', 'm4macros/glib-gettext.m4', 'm4macros/gsettings.m4',
1915 install_dir : join_paths(get_option('datadir'), 'aclocal'))
1916 endif
1918 if host_system != 'windows'
1919 # Install Valgrind suppression file (except on Windows,
1920 # as Valgrind is currently not supported on Windows)
1921 install_data('glib.supp',
1922 install_dir : join_paths(get_option('datadir'), 'glib-2.0', 'valgrind'))
1923 endif
1925 configure_file(output : 'config.h', configuration : glib_conf)
1927 if host_system == 'windows'
1928 install_headers([ 'msvc_recommended_pragmas.h' ], subdir : 'glib-2.0')
1929 endif
1931 if get_option('man')
1932 xsltproc = find_program('xsltproc', required : true)
1933 xsltproc_command = [
1934 xsltproc,
1935 '--nonet',
1936 '--stringparam', 'man.output.quietly', '1',
1937 '--stringparam', 'funcsynopsis.style', 'ansi',
1938 '--stringparam', 'man.th.extra1.suppress', '1',
1939 '--stringparam', 'man.authors.section.enabled', '0',
1940 '--stringparam', 'man.copyright.section.enabled', '0',
1941 '-o', '@OUTPUT@',
1942 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl',
1943 '@INPUT@',
1944 ]
1945 man1_dir = get_option('mandir') + '/man1'
1946 endif
1948 gnome = import('gnome')
1949 subdir('docs/reference/glib')
1950 subdir('docs/reference/gobject')
1951 subdir('docs/reference/gio')