1 project('glib', 'c', 'cpp',
3 # NOTE: We keep this pinned at 0.49 because that's what Debian 10 ships
4 meson_version : '>= 0.49.2',
6 'buildtype=debugoptimized',
12 cc = meson.get_compiler('c')
13 cxx = meson.get_compiler('cpp')
15 cc_can_run = not meson.is_cross_build() or meson.has_exe_wrapper()
17 if cc.get_id() == 'msvc'
18 # Ignore several spurious warnings for things glib does very commonly
19 # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
20 # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
21 # NOTE: Only add warnings here if you are sure they're spurious
22 add_project_arguments('/wd4035', '/wd4715', '/wd4116',
23 '/wd4046', '/wd4068', '/wo4090', '/FImsvc_recommended_pragmas.h',language : 'c')
24 # Disable SAFESEH with MSVC for plugins and libs that use external deps that
25 # are built with MinGW
26 noseh_link_args = ['/SAFESEH:NO']
27 # Set the input and exec encoding to utf-8, like is the default with GCC
28 add_project_arguments(cc.get_supported_arguments(['/utf-8']), language: 'c')
31 # -mms-bitfields vs -fnative-struct ?
34 host_system = host_machine.system()
36 glib_version = meson.project_version()
37 glib_api_version = '2.0'
38 version_arr = glib_version.split('.')
39 major_version = version_arr[0].to_int()
40 minor_version = version_arr[1].to_int()
41 micro_version = version_arr[2].to_int()
43 interface_age = minor_version.is_odd() ? 0 : micro_version
44 binary_age = 100 * minor_version + micro_version
47 # Maintain compatibility with previous libtool versioning
48 # current = minor * 100 + micro
49 current = binary_age - interface_age
50 library_version = '@0@.@1@.@2@'.format(soversion, current, interface_age)
51 darwin_versions = [current + 1, '@0@.@1@'.format(current + 1, interface_age)]
53 configinc = include_directories('.')
54 glibinc = include_directories('glib')
55 gobjectinc = include_directories('gobject')
56 gmoduleinc = include_directories('gmodule')
57 gioinc = include_directories('gio')
59 glib_prefix = get_option('prefix')
60 glib_bindir = join_paths(glib_prefix, get_option('bindir'))
61 glib_libdir = join_paths(glib_prefix, get_option('libdir'))
62 glib_libexecdir = join_paths(glib_prefix, get_option('libexecdir'))
63 glib_datadir = join_paths(glib_prefix, get_option('datadir'))
64 glib_pkgdatadir = join_paths(glib_datadir, 'glib-2.0')
65 glib_includedir = join_paths(glib_prefix, get_option('includedir'))
66 glib_giomodulesdir = get_option('gio_module_dir')
67 if glib_giomodulesdir == ''
68 glib_giomodulesdir = join_paths(glib_libdir, 'gio', 'modules')
71 glib_pkgconfigreldir = join_paths(glib_libdir, 'pkgconfig')
73 installed_tests_metadir = join_paths(glib_datadir, 'installed-tests', meson.project_name())
74 installed_tests_execdir = join_paths(glib_libexecdir, 'installed-tests', meson.project_name())
75 installed_tests_enabled = get_option('installed_tests')
76 installed_tests_template = files('template.test.in')
77 installed_tests_template_tap = files('template-tap.test.in')
79 add_project_arguments('-D_GNU_SOURCE', language: 'c')
81 # Disable strict aliasing;
82 # see https://bugzilla.gnome.org/show_bug.cgi?id=791622
83 if cc.has_argument('-fno-strict-aliasing')
84 add_project_arguments('-fno-strict-aliasing', language: 'c')
87 ########################
88 # Configuration begins #
89 ########################
90 glib_conf = configuration_data()
91 glibconfig_conf = configuration_data()
93 # accumulated list of defines as we check for them, so we can easily
94 # use them later in test programs (autoconf does this automatically)
97 glib_conf.set('GLIB_MAJOR_VERSION', major_version)
98 glib_conf.set('GLIB_MINOR_VERSION', minor_version)
99 glib_conf.set('GLIB_MICRO_VERSION', micro_version)
100 glib_conf.set('GLIB_INTERFACE_AGE', interface_age)
101 glib_conf.set('GLIB_BINARY_AGE', binary_age)
102 glib_conf.set_quoted('GETTEXT_PACKAGE', 'glib20')
103 glib_conf.set_quoted('PACKAGE_BUGREPORT', 'https://gitlab.gnome.org/GNOME/glib/issues/new')
104 glib_conf.set_quoted('PACKAGE_NAME', 'glib')
105 glib_conf.set_quoted('PACKAGE_STRING', 'glib @0@'.format(meson.project_version()))
106 glib_conf.set_quoted('PACKAGE_TARNAME', 'glib')
107 glib_conf.set_quoted('PACKAGE_URL', '')
108 glib_conf.set_quoted('PACKAGE_VERSION', meson.project_version())
109 glib_conf.set('ENABLE_NLS', 1)
111 # used by the .rc.in files
112 glibconfig_conf.set('LT_CURRENT_MINUS_AGE', soversion)
114 glib_conf.set('_GNU_SOURCE', 1)
116 if host_system == 'windows'
117 # Poll doesn't work on devices on Windows
118 glib_conf.set('BROKEN_POLL', true)
121 if host_system == 'windows' and cc.get_id() != 'msvc' and cc.get_id() != 'clang-cl'
122 # FIXME: Ideally we shouldn't depend on this on Windows and should use
123 # 64 bit capable Windows API that also works with MSVC.
124 # The autotools build did set this for mingw and while meson sets it
125 # for gcc/clang by default, it doesn't do so on Windows.
126 glib_conf.set('_FILE_OFFSET_BITS', 64)
129 # Check for GNU visibility attributes
130 g_have_gnuc_visibility = cc.compiles('''
132 __attribute__ ((visibility ("hidden")))
137 __attribute__ ((visibility ("internal")))
142 __attribute__ ((visibility ("protected")))
147 __attribute__ ((visibility ("default")))
160 # Not supported by MSVC, but MSVC also won't support visibility,
161 # so it's OK to pass -Werror explicitly. Replace with
162 # override_options : 'werror=true' once that is supported
164 name : 'GNU C visibility attributes test')
166 if g_have_gnuc_visibility
167 glibconfig_conf.set('G_HAVE_GNUC_VISIBILITY', '1')
170 # Detect and set symbol visibility
171 glib_hidden_visibility_args = []
172 if get_option('default_library') != 'static'
173 if host_system == 'windows' or host_system == 'cygwin'
174 glib_conf.set('DLL_EXPORT', true)
175 if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl'
176 glib_conf.set('_GLIB_EXTERN', '__declspec(dllexport) extern')
177 elif cc.has_argument('-fvisibility=hidden')
178 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) __declspec(dllexport) extern')
179 glib_hidden_visibility_args = ['-fvisibility=hidden']
181 elif cc.has_argument('-fvisibility=hidden')
182 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) extern')
183 glib_hidden_visibility_args = ['-fvisibility=hidden']
187 if get_option('default_library') == 'static'
188 glibconfig_conf.set('GLIB_STATIC_COMPILATION', '1')
189 glibconfig_conf.set('GOBJECT_STATIC_COMPILATION', '1')
192 # Cygwin glib port maintainers made it clear
193 # (via the patches they apply) that they want no
194 # part of glib W32 code, therefore we do not define
195 # G_PLATFORM_WIN32 for host_system == 'cygwin'.
196 # This makes G_PLATFORM_WIN32 a synonym for
198 if host_system == 'windows'
199 glib_os = '''#define G_OS_WIN32
200 #define G_PLATFORM_WIN32'''
201 elif host_system == 'cygwin'
202 glib_os = '''#define G_OS_UNIX
203 #define G_WITH_CYGWIN'''
205 glib_os = '#define G_OS_UNIX'
207 glibconfig_conf.set('glib_os', glib_os)
209 # We need to know the build type to determine what .lib files we need on Visual Studio
210 # for dependencies that don't normally come with pkg-config files for Visual Studio builds
211 buildtype = get_option('buildtype')
213 glib_debug_cflags = []
214 if buildtype.startswith('debug')
215 glib_debug_cflags += ['-DG_ENABLE_DEBUG']
216 elif buildtype == 'release'
217 glib_debug_cflags += ['-DG_DISABLE_CAST_CHECKS']
220 add_project_arguments(glib_debug_cflags, language: 'c')
222 # check for header files
227 'dirent.h', # MSC does not come with this by default
261 'sys/time.h', # MSC does not come with this by default
278 define = 'HAVE_' + h.underscorify().to_upper()
279 glib_conf.set(define, 1)
280 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
284 # FIXME: Use cc.check_header from Meson 0.47.
285 # FreeBSD includes a malloc.h which always throw compilation error.
286 if cc.compiles('#include <malloc.h>', name : 'malloc.h')
287 glib_conf.set('HAVE_MALLOC_H', 1)
288 glib_conf_prefix = glib_conf_prefix + '#define HAVE_MALLOC_H 1\n'
291 if cc.has_header('linux/netlink.h')
292 glib_conf.set('HAVE_NETLINK', 1)
295 if glib_conf.has('HAVE_LOCALE_H')
296 if cc.has_header_symbol('locale.h', 'LC_MESSAGES')
297 glib_conf.set('HAVE_LC_MESSAGES', 1)
301 struct_stat_blkprefix = '''
302 #include <sys/types.h>
303 #include <sys/stat.h>
307 #ifdef HAVE_SYS_STATFS_H
308 #include <sys/statfs.h>
310 #ifdef HAVE_SYS_PARAM_H
311 #include <sys/param.h>
313 #ifdef HAVE_SYS_MOUNT_H
314 #include <sys/mount.h>
319 [ 'stat', 'st_mtimensec' ],
320 [ 'stat', 'st_mtim.tv_nsec' ],
321 [ 'stat', 'st_atimensec' ],
322 [ 'stat', 'st_atim.tv_nsec' ],
323 [ 'stat', 'st_ctimensec' ],
324 [ 'stat', 'st_ctim.tv_nsec' ],
325 [ 'stat', 'st_birthtime' ],
326 [ 'stat', 'st_birthtimensec' ],
327 [ 'stat', 'st_birthtim' ],
328 [ 'stat', 'st_birthtim.tv_nsec' ],
329 [ 'stat', 'st_blksize', struct_stat_blkprefix ],
330 [ 'stat', 'st_blocks', struct_stat_blkprefix ],
331 [ 'statfs', 'f_fstypename', struct_stat_blkprefix ],
332 [ 'statfs', 'f_bavail', struct_stat_blkprefix ],
333 [ 'dirent', 'd_type', '''#include <sys/types.h>
334 #include <dirent.h>''' ],
335 [ 'statvfs', 'f_basetype', '#include <sys/statvfs.h>' ],
336 [ 'statvfs', 'f_fstypename', '#include <sys/statvfs.h>' ],
337 [ 'tm', 'tm_gmtoff', '#include <time.h>' ],
338 [ 'tm', '__tm_gmtoff', '#include <time.h>' ],
341 foreach m : struct_members
342 header_check_prefix = glib_conf_prefix
344 header_check_prefix = header_check_prefix + m[2]
346 header_check_prefix = header_check_prefix + '#include <sys/stat.h>'
348 if cc.has_member('struct ' + m[0], m[1], prefix : header_check_prefix)
349 define = 'HAVE_STRUCT_@0@_@1@'.format(m[0].to_upper(), m[1].underscorify().to_upper())
350 glib_conf.set(define, 1)
351 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
357 if cc.get_id() == 'gcc' or cc.get_id() == 'clang'
360 '-Wduplicated-branches',
361 '-Wimplicit-fallthrough',
362 '-Wmisleading-indentation',
363 '-Wstrict-prototypes',
365 # Due to maintained deprecated code, we do not want to see unused parameters
366 '-Wno-unused-parameter',
367 # Due to pervasive use of things like GPOINTER_TO_UINT(), we do not support
368 # building with -Wbad-function-cast.
369 '-Wno-bad-function-cast',
370 '-Wno-cast-function-type',
371 # Due to function casts through (void*) we cannot support -Wpedantic:
372 # https://wiki.gnome.org/Projects/GLib/CompilerRequirements#Function_pointer_conversions.
374 '-Werror=declaration-after-statement',
376 '-Werror=implicit-function-declaration',
378 '-Werror=missing-include-dirs',
379 '-Werror=missing-prototypes',
380 '-Werror=pointer-arith',
382 warning_c_link_args = [
385 if get_option('bsymbolic_functions')
386 warning_c_link_args += ['-Wl,-Bsymbolic-functions']
390 warning_c_link_args = []
393 add_project_arguments(cc.get_supported_arguments(warning_c_args), language: 'c')
395 # FIXME: We cannot build some of the GResource tests with -z nodelete, which
396 # means we cannot use that flag in add_project_link_arguments(), and must add
397 # it to the relevant targets manually. We do the same with -Bsymbolic-functions
398 # because that is what the autotools build did.
399 # See https://github.com/mesonbuild/meson/pull/3520 for a way to eventually
401 glib_link_flags = cc.get_supported_link_arguments(warning_c_link_args)
403 # Windows Support (7+)
404 if host_system == 'windows'
405 glib_conf.set('_WIN32_WINNT', '0x0601')
468 if glib_conf.has('HAVE_SYS_STATVFS_H')
469 functions += ['statvfs']
471 have_func_statvfs = false
473 if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
474 functions += ['statfs']
476 have_func_statfs = false
479 if host_system == 'windows'
480 iphlpapi_dep = cc.find_library('iphlpapi')
481 iphlpapi_funcs = ['if_nametoindex', 'if_indextoname']
482 foreach ifunc : iphlpapi_funcs
483 iphl_prefix = '''#define _WIN32_WINNT @0@
484 #include <winsock2.h>
485 #include <iphlpapi.h>'''.format(glib_conf.get('_WIN32_WINNT'))
486 if cc.has_function(ifunc,
487 prefix : iphl_prefix,
488 dependencies : iphlpapi_dep)
489 idefine = 'HAVE_' + ifunc.underscorify().to_upper()
490 glib_conf.set(idefine, 1)
491 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(idefine)
492 set_variable('have_func_' + ifunc, true)
494 set_variable('have_func_' + ifunc, false)
498 functions += ['if_indextoname', 'if_nametoindex']
501 # AIX splice is something else
502 if host_system != 'aix'
503 functions += ['splice']
506 foreach f : functions
507 if cc.has_function(f)
508 define = 'HAVE_' + f.underscorify().to_upper()
509 glib_conf.set(define, 1)
510 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
511 set_variable('have_func_' + f, true)
513 set_variable('have_func_' + f, false)
517 # Check that stpcpy() is usable; must use header
518 if cc.has_function('stpcpy', prefix : '#include <string.h>')
519 glib_conf.set('HAVE_STPCPY', 1)
522 # Check that posix_memalign() is usable; must use header
523 if cc.has_function('posix_memalign', prefix : '#include <stdlib.h>')
524 glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
527 # Check that posix_spawn() is usable; must use header
528 if cc.has_function('posix_spawn', prefix : '#include <spawn.h>')
529 glib_conf.set('HAVE_POSIX_SPAWN', 1)
532 # Check whether strerror_r returns char *
533 if have_func_strerror_r
534 if cc.compiles('''#define _GNU_SOURCE
537 char error_string[256];
538 char *ptr = strerror_r (-2, error_string, 256);
539 char c = *strerror_r (-2, error_string, 256);
540 return c != 0 && ptr != (void*) 0L;
543 name : 'strerror_r() returns char *')
544 glib_conf.set('STRERROR_R_CHAR_P', 1,
545 description: 'Defined if strerror_r returns char *')
549 # Special-case these functions that have alternative names on Windows/MSVC
550 if cc.has_function('snprintf') or cc.has_header_symbol('stdio.h', 'snprintf')
551 glib_conf.set('HAVE_SNPRINTF', 1)
552 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF 1\n'
553 elif cc.has_function('_snprintf') or cc.has_header_symbol('stdio.h', '_snprintf')
554 hack_define = '1\n#define snprintf _snprintf'
555 glib_conf.set('HAVE_SNPRINTF', hack_define)
556 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF ' + hack_define
559 if cc.has_function('strcasecmp')
560 glib_conf.set('HAVE_STRCASECMP', 1)
561 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP 1\n'
562 elif cc.has_function('_stricmp')
563 hack_define = '1\n#define strcasecmp _stricmp'
564 glib_conf.set('HAVE_STRCASECMP', hack_define)
565 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP ' + hack_define
568 if cc.has_function('strncasecmp')
569 glib_conf.set('HAVE_STRNCASECMP', 1)
570 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP 1\n'
571 elif cc.has_function('_strnicmp')
572 hack_define = '1\n#define strncasecmp _strnicmp'
573 glib_conf.set('HAVE_STRNCASECMP', hack_define)
574 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP ' + hack_define
577 if cc.has_header_symbol('sys/sysmacros.h', 'major')
578 glib_conf.set('MAJOR_IN_SYSMACROS', 1)
579 elif cc.has_header_symbol('sys/mkdev.h', 'major')
580 glib_conf.set('MAJOR_IN_MKDEV', 1)
581 elif cc.has_header_symbol('sys/types.h', 'major')
582 glib_conf.set('MAJOR_IN_TYPES', 1)
585 if cc.has_header_symbol('dlfcn.h', 'RTLD_LAZY')
586 glib_conf.set('HAVE_RTLD_LAZY', 1)
589 if cc.has_header_symbol('dlfcn.h', 'RTLD_NOW')
590 glib_conf.set('HAVE_RTLD_NOW', 1)
593 if cc.has_header_symbol('dlfcn.h', 'RTLD_GLOBAL')
594 glib_conf.set('HAVE_RTLD_GLOBAL', 1)
597 have_rtld_next = false
598 if cc.has_header_symbol('dlfcn.h', 'RTLD_NEXT', args: '-D_GNU_SOURCE')
599 have_rtld_next = true
600 glib_conf.set('HAVE_RTLD_NEXT', 1)
603 # Check whether to use statfs or statvfs
604 # Some systems have both statfs and statvfs, pick the most "native" for these
605 if have_func_statfs and have_func_statvfs
606 # on solaris and irix, statfs doesn't even have the f_bavail field
607 if not glib_conf.has('HAVE_STRUCT_STATFS_F_BAVAIL')
608 have_func_statfs = false
610 # at least on linux, statfs is the actual syscall
611 have_func_statvfs = false
615 glib_conf.set('USE_STATFS', 1)
616 stat_func_to_use = 'statfs'
617 elif have_func_statvfs
618 glib_conf.set('USE_STATVFS', 1)
619 stat_func_to_use = 'statvfs'
621 stat_func_to_use = 'neither'
623 message('Checking whether to use statfs or statvfs .. ' + stat_func_to_use)
625 if host_system == 'linux'
626 if cc.has_function('mkostemp',
627 prefix: '''#define _GNU_SOURCE
628 #include <stdlib.h>''')
629 glib_conf.set('HAVE_MKOSTEMP', 1)
634 glib_have_os_x_9_or_later = false
635 glib_have_carbon = false
636 glib_have_cocoa = false
637 if host_system == 'darwin'
638 add_languages('objc')
639 objcc = meson.get_compiler('objc')
641 osx_ldflags += ['-Wl,-framework,CoreFoundation']
643 # Mac OS X Carbon support
644 glib_have_carbon = objcc.compiles('''#include <Carbon/Carbon.h>
645 #include <CoreServices/CoreServices.h>''',
646 name : 'Mac OS X Carbon support')
649 glib_conf.set('HAVE_CARBON', true)
650 osx_ldflags += '-Wl,-framework,Carbon'
651 glib_have_os_x_9_or_later = objcc.compiles('''#include <AvailabilityMacros.h>
652 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
653 #error Compiling for minimum OS X version before 10.9
655 name : 'OS X 9 or later')
658 # Mac OS X Cocoa support
659 glib_have_cocoa = objcc.compiles('''#include <Cocoa/Cocoa.h>
660 #ifdef GNUSTEP_BASE_VERSION
661 #error "Detected GNUstep, not Cocoa"
663 name : 'Mac OS X Cocoa support')
666 glib_conf.set('HAVE_COCOA', true)
667 osx_ldflags += ['-Wl,-framework,Foundation', '-Wl,-framework,AppKit']
670 # FIXME: libgio mix C and objC source files and there is no way to reliably
671 # know which language flags it's going to use to link. Add to both languages
672 # for now. See https://github.com/mesonbuild/meson/issues/3585.
673 add_project_link_arguments(osx_ldflags, language : ['objc', 'c'])
677 if cc.links('''#include <linux/futex.h>
678 #include <sys/syscall.h>
680 int main (int argc, char ** argv) {
681 syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
683 }''', name : 'futex(2) system call')
684 glib_conf.set('HAVE_FUTEX', 1)
687 # Check for eventfd(2)
688 if cc.links('''#include <sys/eventfd.h>
690 int main (int argc, char ** argv) {
691 eventfd (0, EFD_CLOEXEC);
693 }''', name : 'eventfd(2) system call')
694 glib_conf.set('HAVE_EVENTFD', 1)
697 clock_gettime_test_code = '''
700 int main (int argc, char ** argv) {
701 return clock_gettime(CLOCK_REALTIME, &t);
704 if cc.links(clock_gettime_test_code, name : 'clock_gettime')
705 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
706 elif cc.links(clock_gettime_test_code, args : '-lrt', name : 'clock_gettime in librt')
707 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
708 librt = cc.find_library('rt')
711 # if statfs() takes 2 arguments (Posix) or 4 (Solaris)
713 if cc.compiles(glib_conf_prefix + '''
715 #ifdef HAVE_SYS_PARAM_H
716 #include <sys/param.h>
718 #ifdef HAVE_SYS_VFS_H
721 #ifdef HAVE_SYS_MOUNT_H
722 #include <sys/mount.h>
724 #ifdef HAVE_SYS_STATFS_H
725 #include <sys/statfs.h>
727 void some_func (void) {
730 }''', name : 'number of arguments to statfs() (n=2)')
731 glib_conf.set('STATFS_ARGS', 2)
732 elif cc.compiles(glib_conf_prefix + '''
734 #ifdef HAVE_SYS_PARAM_H
735 #include <sys/param.h>
737 #ifdef HAVE_SYS_VFS_H
740 #ifdef HAVE_SYS_MOUNT_H
741 #include <sys/mount.h>
743 #ifdef HAVE_SYS_STATFS_H
744 #include <sys/statfs.h>
746 void some_func (void) {
748 statfs("/", &st, sizeof (st), 0);
749 }''', name : 'number of arguments to statfs() (n=4)')
750 glib_conf.set('STATFS_ARGS', 4)
752 error('Unable to determine number of arguments to statfs()')
756 # open takes O_DIRECTORY as an option
758 if cc.compiles('''#include <fcntl.h>
759 #include <sys/types.h>
760 #include <sys/stat.h>],
761 void some_func (void) {
762 open(0, O_DIRECTORY, 0);
763 }''', name : 'open() option O_DIRECTORY')
764 glib_conf.set('HAVE_OPEN_O_DIRECTORY', 1)
767 # Check whether there is a vsnprintf() function with C99 semantics installed.
768 # (similar tests to AC_FUNC_VSNPRINTF_C99)
769 # Check whether there is a snprintf() function with C99 semantics installed.
770 # (similar tests to AC_FUNC_SNPRINTF_C99)
771 # Check whether there is a printf() function with Unix98 semantics installed.
772 # (similar tests to AC_FUNC_PRINTF_UNIX98)
773 have_good_vsnprintf = false
774 have_good_snprintf = false
775 have_good_printf = false
777 if host_system == 'windows' and (cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl')
778 # Unfortunately the Visual Studio 2015+ implementations of C99-style
779 # snprintf and vsnprintf don't seem to be quite good enough.
780 # (Sorry, I don't know exactly what is the problem,
781 # but it is related to floating point formatting and decimal point vs. comma.)
782 # The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
783 # rigorous enough to notice, though.
784 glib_conf.set('HAVE_C99_SNPRINTF', false)
785 glib_conf.set('HAVE_C99_VSNPRINTF', false)
786 glib_conf.set('HAVE_UNIX98_PRINTF', false)
788 vsnprintf_c99_test_code = '''
800 r = vsnprintf(buffer, 5, s, args);
806 /* AIX 5.1 and Solaris seems to have a half-baked vsnprintf()
807 implementation. The above will return 7 but if you replace
808 the size of the buffer with 0, it borks! */
810 r = vsnprintf(buffer, 0, s, args);
827 rres = cc.run(vsnprintf_c99_test_code, name : 'C99 vsnprintf')
828 if rres.compiled() and rres.returncode() == 0
829 glib_conf.set('HAVE_C99_VSNPRINTF', 1)
830 have_good_vsnprintf = true
833 have_good_vsnprintf = meson.get_cross_property('have_c99_vsnprintf', false)
834 glib_conf.set('HAVE_C99_VSNPRINTF', have_good_vsnprintf)
837 snprintf_c99_test_code = '''
848 r = snprintf(buffer, 5, "1234567");
853 r = snprintf(buffer, 0, "1234567");
858 r = snprintf(NULL, 0, "1234567");
874 rres = cc.run(snprintf_c99_test_code, name : 'C99 snprintf')
875 if rres.compiled() and rres.returncode() == 0
876 glib_conf.set('HAVE_C99_SNPRINTF', 1)
877 have_good_snprintf = true
880 have_good_snprintf = meson.get_cross_property('have_c99_snprintf', false)
881 glib_conf.set('HAVE_C99_SNPRINTF', have_good_snprintf)
884 printf_unix98_test_code = '''
892 sprintf (buffer, "%2\$d %3\$d %1\$d", 1, 2, 3);
893 if (strcmp ("2 3 1", buffer) == 0)
899 rres = cc.run(printf_unix98_test_code, name : 'Unix98 printf positional parameters')
900 if rres.compiled() and rres.returncode() == 0
901 glib_conf.set('HAVE_UNIX98_PRINTF', 1)
902 have_good_printf = true
905 have_good_printf = meson.get_cross_property('have_unix98_printf', false)
906 glib_conf.set('HAVE_UNIX98_PRINTF', have_good_printf)
910 if host_system == 'windows'
911 glib_conf.set_quoted('EXEEXT', '.exe')
913 glib_conf.set('EXEEXT', '')
916 if have_good_vsnprintf and have_good_snprintf and have_good_printf
917 # Our printf is 'good' only if vsnpintf()/snprintf()/printf() supports C99 well enough
918 glib_conf.set('HAVE_GOOD_PRINTF', 1)
920 glib_conf.set('HAVE_VASPRINTF', 1)
923 glibconfig_conf.set('GLIB_USING_SYSTEM_PRINTF',
924 have_good_vsnprintf and have_good_snprintf and have_good_printf)
926 # Check whether the printf() family supports Unix98 %n$ positional parameters
927 # AC_FUNC_PRINTF_UNIX98
928 # Nothing uses HAVE_UNIX98_PRINTF
931 # Check for nl_langinfo and CODESET
932 if cc.links('''#include <langinfo.h>
933 int main (int argc, char ** argv) {
934 char *codeset = nl_langinfo (CODESET);
936 }''', name : 'nl_langinfo and CODESET')
937 glib_conf.set('HAVE_LANGINFO_CODESET', 1)
938 glib_conf.set('HAVE_CODESET', 1)
941 # Check for nl_langinfo and LC_TIME parts that are needed in gdatetime.c
942 if cc.links('''#include <langinfo.h>
943 int main (int argc, char ** argv) {
945 str = nl_langinfo (PM_STR);
946 str = nl_langinfo (D_T_FMT);
947 str = nl_langinfo (D_FMT);
948 str = nl_langinfo (T_FMT);
949 str = nl_langinfo (T_FMT_AMPM);
950 str = nl_langinfo (MON_1);
951 str = nl_langinfo (ABMON_12);
952 str = nl_langinfo (DAY_1);
953 str = nl_langinfo (ABDAY_7);
955 }''', name : 'nl_langinfo (PM_STR)')
956 glib_conf.set('HAVE_LANGINFO_TIME', 1)
958 if cc.links('''#include <langinfo.h>
959 int main (int argc, char ** argv) {
961 str = nl_langinfo (_NL_CTYPE_OUTDIGIT0_MB);
962 str = nl_langinfo (_NL_CTYPE_OUTDIGIT1_MB);
963 str = nl_langinfo (_NL_CTYPE_OUTDIGIT2_MB);
964 str = nl_langinfo (_NL_CTYPE_OUTDIGIT3_MB);
965 str = nl_langinfo (_NL_CTYPE_OUTDIGIT4_MB);
966 str = nl_langinfo (_NL_CTYPE_OUTDIGIT5_MB);
967 str = nl_langinfo (_NL_CTYPE_OUTDIGIT6_MB);
968 str = nl_langinfo (_NL_CTYPE_OUTDIGIT7_MB);
969 str = nl_langinfo (_NL_CTYPE_OUTDIGIT8_MB);
970 str = nl_langinfo (_NL_CTYPE_OUTDIGIT9_MB);
972 }''', name : 'nl_langinfo (_NL_CTYPE_OUTDIGITn_MB)')
973 glib_conf.set('HAVE_LANGINFO_OUTDIGIT', 1)
976 # Check for nl_langinfo and alternative month names
977 if cc.links('''#ifndef _GNU_SOURCE
980 #include <langinfo.h>
981 int main (int argc, char ** argv) {
983 str = nl_langinfo (ALTMON_1);
984 str = nl_langinfo (ALTMON_2);
985 str = nl_langinfo (ALTMON_3);
986 str = nl_langinfo (ALTMON_4);
987 str = nl_langinfo (ALTMON_5);
988 str = nl_langinfo (ALTMON_6);
989 str = nl_langinfo (ALTMON_7);
990 str = nl_langinfo (ALTMON_8);
991 str = nl_langinfo (ALTMON_9);
992 str = nl_langinfo (ALTMON_10);
993 str = nl_langinfo (ALTMON_11);
994 str = nl_langinfo (ALTMON_12);
996 }''', name : 'nl_langinfo (ALTMON_n)')
997 glib_conf.set('HAVE_LANGINFO_ALTMON', 1)
1000 # Check for nl_langinfo and abbreviated alternative month names
1001 if cc.links('''#ifndef _GNU_SOURCE
1002 # define _GNU_SOURCE
1004 #include <langinfo.h>
1005 int main (int argc, char ** argv) {
1007 str = nl_langinfo (_NL_ABALTMON_1);
1008 str = nl_langinfo (_NL_ABALTMON_2);
1009 str = nl_langinfo (_NL_ABALTMON_3);
1010 str = nl_langinfo (_NL_ABALTMON_4);
1011 str = nl_langinfo (_NL_ABALTMON_5);
1012 str = nl_langinfo (_NL_ABALTMON_6);
1013 str = nl_langinfo (_NL_ABALTMON_7);
1014 str = nl_langinfo (_NL_ABALTMON_8);
1015 str = nl_langinfo (_NL_ABALTMON_9);
1016 str = nl_langinfo (_NL_ABALTMON_10);
1017 str = nl_langinfo (_NL_ABALTMON_11);
1018 str = nl_langinfo (_NL_ABALTMON_12);
1020 }''', name : 'nl_langinfo (_NL_ABALTMON_n)')
1021 glib_conf.set('HAVE_LANGINFO_ABALTMON', 1)
1024 # Check if C compiler supports the 'signed' keyword
1025 if not cc.compiles('''signed char x;''', name : 'signed')
1026 glib_conf.set('signed', '/* NOOP */')
1029 # Check if the ptrdiff_t type exists
1030 if cc.has_header_symbol('stddef.h', 'ptrdiff_t')
1031 glib_conf.set('HAVE_PTRDIFF_T', 1)
1034 # Check for sig_atomic_t type
1035 if cc.links('''#include <signal.h>
1036 #include <sys/types.h>
1037 sig_atomic_t val = 42;
1038 int main (int argc, char ** argv) {
1039 return val == 42 ? 0 : 1;
1040 }''', name : 'sig_atomic_t')
1041 glib_conf.set('HAVE_SIG_ATOMIC_T', 1)
1044 # Check if 'long long' works
1045 # jm_AC_TYPE_LONG_LONG
1046 if cc.compiles('''long long ll = 1LL;
1048 int some_func (void) {
1049 long long llmax = (long long) -1;
1050 return ll << i | ll >> i | llmax / ll | llmax % ll;
1051 }''', name : 'long long')
1052 glib_conf.set('HAVE_LONG_LONG', 1)
1053 have_long_long = true
1055 have_long_long = false
1058 # Test whether the compiler supports the 'long double' type.
1059 if cc.compiles('''/* The Stardent Vistra knows sizeof(long double), but does not support it. */
1060 long double foo = 0.0;
1061 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
1062 int array [2*(sizeof(long double) >= sizeof(double)) - 1];''',
1063 name : 'long double')
1064 glib_conf.set('HAVE_LONG_DOUBLE', 1)
1067 # Test whether <stddef.h> has the 'wchar_t' type.
1068 if cc.has_header_symbol('stddef.h', 'wchar_t')
1069 glib_conf.set('HAVE_WCHAR_T', 1)
1072 # Test whether <wchar.h> has the 'wint_t' type.
1073 if cc.has_header_symbol('wchar.h', 'wint_t')
1074 glib_conf.set('HAVE_WINT_T', 1)
1077 found_uintmax_t = false
1079 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
1080 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1081 # jm_AC_HEADER_INTTYPES_H
1082 if cc.compiles('''#include <sys/types.h>
1083 #include <inttypes.h>
1084 void some_func (void) {
1085 uintmax_t i = (uintmax_t) -1;
1086 }''', name : 'uintmax_t in inttypes.h')
1087 glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
1088 found_uintmax_t = true
1091 # Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
1092 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1093 # jm_AC_HEADER_STDINT_H
1094 if cc.compiles('''#include <sys/types.h>
1096 void some_func (void) {
1097 uintmax_t i = (uintmax_t) -1;
1098 }''', name : 'uintmax_t in stdint.h')
1099 glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
1100 found_uintmax_t = true
1103 # Define intmax_t to 'long' or 'long long'
1104 # if it is not already defined in <stdint.h> or <inttypes.h>.
1105 # For simplicity, we assume that a header file defines 'intmax_t' if and
1106 # only if it defines 'uintmax_t'.
1108 glib_conf.set('HAVE_INTMAX_T', 1)
1110 glib_conf.set('intmax_t', 'long long')
1112 glib_conf.set('intmax_t', 'long')
1115 char_size = cc.sizeof('char')
1116 short_size = cc.sizeof('short')
1117 int_size = cc.sizeof('int')
1118 voidp_size = cc.sizeof('void*')
1119 long_size = cc.sizeof('long')
1121 long_long_size = cc.sizeof('long long')
1125 sizet_size = cc.sizeof('size_t')
1126 if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl'
1127 ssizet_size = cc.sizeof('SSIZE_T', prefix : '#include <BaseTsd.h>')
1129 ssizet_size = cc.sizeof('ssize_t')
1132 # Some platforms (Apple) hard-code int64_t to long long instead of
1133 # using long on 64-bit architectures. This can cause type mismatch
1134 # warnings when trying to interface with code using the standard
1135 # library type. Test for the warnings and set gint64 to whichever
1137 if long_long_size == long_size
1138 if cc.compiles('''#if defined(_AIX) && !defined(__GNUC__)
1139 #pragma options langlvl=stdc99
1141 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
1148 }''', name : 'int64_t is long')
1149 int64_t_typedef = 'long'
1150 elif cc.compiles('''#if defined(_AIX) && !defined(__GNUC__)
1151 #pragma options langlvl=stdc99
1153 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
1158 long long *i2 = &i1;
1160 }''', name : 'int64_t is long long')
1161 int64_t_typedef = 'long long'
1166 char_align = cc.alignment('char')
1167 short_align = cc.alignment('short')
1168 int_align = cc.alignment('int')
1169 voidp_align = cc.alignment('void*')
1170 long_align = cc.alignment('long')
1171 long_long_align = cc.alignment('long long')
1172 # NOTE: We don't check for size of __int64 because long long is guaranteed to
1173 # be 64-bit in C99, and it is available on all supported compilers
1174 sizet_align = cc.alignment('size_t')
1176 glib_conf.set('ALIGNOF_UNSIGNED_LONG', long_align)
1178 glib_conf.set('SIZEOF_CHAR', char_size)
1179 glib_conf.set('SIZEOF_INT', int_size)
1180 glib_conf.set('SIZEOF_SHORT', short_size)
1181 glib_conf.set('SIZEOF_LONG', long_size)
1182 glib_conf.set('SIZEOF_LONG_LONG', long_long_size)
1183 glib_conf.set('SIZEOF_SIZE_T', sizet_size)
1184 glib_conf.set('SIZEOF_SSIZE_T', ssizet_size)
1185 glib_conf.set('SIZEOF_VOID_P', voidp_size)
1186 glib_conf.set('SIZEOF_WCHAR_T', cc.sizeof('wchar_t', prefix: '#include <stddef.h>'))
1199 error('Compiler provides no native 16-bit integer type')
1201 glibconfig_conf.set('gint16', gint16)
1202 glibconfig_conf.set_quoted('gint16_modifier', gint16_modifier)
1203 glibconfig_conf.set_quoted('gint16_format', gint16_format)
1204 glibconfig_conf.set_quoted('guint16_format', guint16_format)
1211 guint32_align = short_align
1217 guint32_align = int_align
1223 guint32_align = long_align
1225 error('Compiler provides no native 32-bit integer type')
1227 glibconfig_conf.set('gint32', gint32)
1228 glibconfig_conf.set_quoted('gint32_modifier', gint32_modifier)
1229 glibconfig_conf.set_quoted('gint32_format', gint32_format)
1230 glibconfig_conf.set_quoted('guint32_format', guint32_format)
1231 glib_conf.set('ALIGNOF_GUINT32', guint32_align)
1239 gint64_constant='(val)'
1240 guint64_constant='(val)'
1241 guint64_align = int_align
1242 elif long_size == 8 and (long_long_size != long_size or int64_t_typedef == 'long')
1248 gint64_constant='(val##L)'
1249 guint64_constant='(val##UL)'
1250 guint64_align = long_align
1251 elif long_long_size == 8 and (long_long_size != long_size or int64_t_typedef == 'long long')
1252 gint64 = 'long long'
1253 glib_extension='G_GNUC_EXTENSION '
1254 gint64_modifier=int64_m
1255 gint64_format=int64_m + 'i'
1256 guint64_format=int64_m + 'u'
1257 gint64_constant='(G_GNUC_EXTENSION (val##LL))'
1258 guint64_constant='(G_GNUC_EXTENSION (val##ULL))'
1259 guint64_align = long_long_align
1261 error('Compiler provides no native 64-bit integer type')
1263 glibconfig_conf.set('glib_extension', glib_extension)
1264 glibconfig_conf.set('gint64', gint64)
1265 glibconfig_conf.set_quoted('gint64_modifier', gint64_modifier)
1266 glibconfig_conf.set_quoted('gint64_format', gint64_format)
1267 glibconfig_conf.set_quoted('guint64_format', guint64_format)
1268 glibconfig_conf.set('gint64_constant', gint64_constant)
1269 glibconfig_conf.set('guint64_constant', guint64_constant)
1270 glib_conf.set('ALIGNOF_GUINT64', guint64_align)
1272 if host_system == 'windows'
1273 glibconfig_conf.set('g_pid_type', 'void*')
1274 glibconfig_conf.set_quoted('g_pid_format', 'p')
1275 if host_machine.cpu_family() == 'x86_64'
1276 glibconfig_conf.set_quoted('g_pollfd_format', '%#' + int64_m + 'x')
1278 glibconfig_conf.set_quoted('g_pollfd_format', '%#x')
1280 glibconfig_conf.set('g_dir_separator', '\\\\')
1281 glibconfig_conf.set('g_searchpath_separator', ';')
1283 glibconfig_conf.set('g_pid_type', 'int')
1284 glibconfig_conf.set_quoted('g_pid_format', 'i')
1285 glibconfig_conf.set_quoted('g_pollfd_format', '%d')
1286 glibconfig_conf.set('g_dir_separator', '/')
1287 glibconfig_conf.set('g_searchpath_separator', ':')
1290 if sizet_size == short_size
1291 glibconfig_conf.set('glib_size_type_define', 'short')
1292 glibconfig_conf.set_quoted('gsize_modifier', 'h')
1293 glibconfig_conf.set_quoted('gssize_modifier', 'h')
1294 glibconfig_conf.set_quoted('gsize_format', 'hu')
1295 glibconfig_conf.set_quoted('gssize_format', 'hi')
1296 glibconfig_conf.set('glib_msize_type', 'SHRT')
1297 elif sizet_size == int_size
1298 glibconfig_conf.set('glib_size_type_define', 'int')
1299 glibconfig_conf.set_quoted('gsize_modifier', '')
1300 glibconfig_conf.set_quoted('gssize_modifier', '')
1301 glibconfig_conf.set_quoted('gsize_format', 'u')
1302 glibconfig_conf.set_quoted('gssize_format', 'i')
1303 glibconfig_conf.set('glib_msize_type', 'INT')
1304 elif sizet_size == long_size
1305 glibconfig_conf.set('glib_size_type_define', 'long')
1306 glibconfig_conf.set_quoted('gsize_modifier', 'l')
1307 glibconfig_conf.set_quoted('gssize_modifier', 'l')
1308 glibconfig_conf.set_quoted('gsize_format', 'lu')
1309 glibconfig_conf.set_quoted('gssize_format', 'li')
1310 glibconfig_conf.set('glib_msize_type', 'LONG')
1311 elif sizet_size == long_long_size
1312 glibconfig_conf.set('glib_size_type_define', 'long long')
1313 glibconfig_conf.set_quoted('gsize_modifier', int64_m)
1314 glibconfig_conf.set_quoted('gssize_modifier', int64_m)
1315 glibconfig_conf.set_quoted('gsize_format', int64_m + 'u')
1316 glibconfig_conf.set_quoted('gssize_format', int64_m + 'i')
1317 glibconfig_conf.set('glib_msize_type', 'INT64')
1319 error('Could not determine size of size_t.')
1322 if voidp_size == int_size
1323 glibconfig_conf.set('glib_intptr_type_define', 'int')
1324 glibconfig_conf.set_quoted('gintptr_modifier', '')
1325 glibconfig_conf.set_quoted('gintptr_format', 'i')
1326 glibconfig_conf.set_quoted('guintptr_format', 'u')
1327 glibconfig_conf.set('glib_gpi_cast', '(gint)')
1328 glibconfig_conf.set('glib_gpui_cast', '(guint)')
1329 elif voidp_size == long_size
1330 glibconfig_conf.set('glib_intptr_type_define', 'long')
1331 glibconfig_conf.set_quoted('gintptr_modifier', 'l')
1332 glibconfig_conf.set_quoted('gintptr_format', 'li')
1333 glibconfig_conf.set_quoted('guintptr_format', 'lu')
1334 glibconfig_conf.set('glib_gpi_cast', '(glong)')
1335 glibconfig_conf.set('glib_gpui_cast', '(gulong)')
1336 elif voidp_size == long_long_size
1337 glibconfig_conf.set('glib_intptr_type_define', 'long long')
1338 glibconfig_conf.set_quoted('gintptr_modifier', int64_m)
1339 glibconfig_conf.set_quoted('gintptr_format', int64_m + 'i')
1340 glibconfig_conf.set_quoted('guintptr_format', int64_m + 'u')
1341 glibconfig_conf.set('glib_gpi_cast', '(gint64)')
1342 glibconfig_conf.set('glib_gpui_cast', '(guint64)')
1344 error('Could not determine size of void *')
1347 if long_size != 8 and long_long_size != 8 and int_size != 8
1348 error('GLib requires a 64-bit type. You might want to consider using the GNU C compiler.')
1351 glibconfig_conf.set('gintbits', int_size * 8)
1352 glibconfig_conf.set('glongbits', long_size * 8)
1353 glibconfig_conf.set('gsizebits', sizet_size * 8)
1354 glibconfig_conf.set('gssizebits', ssizet_size * 8)
1356 # XXX: https://gitlab.gnome.org/GNOME/glib/issues/1413
1357 if host_system == 'windows'
1358 g_module_suffix = 'dll'
1360 g_module_suffix = 'so'
1362 glibconfig_conf.set('g_module_suffix', g_module_suffix)
1364 glibconfig_conf.set('GLIB_MAJOR_VERSION', major_version)
1365 glibconfig_conf.set('GLIB_MINOR_VERSION', minor_version)
1366 glibconfig_conf.set('GLIB_MICRO_VERSION', micro_version)
1367 glibconfig_conf.set('GLIB_VERSION', glib_version)
1369 glibconfig_conf.set('glib_void_p', voidp_size)
1370 glibconfig_conf.set('glib_long', long_size)
1371 glibconfig_conf.set('glib_size_t', sizet_size)
1372 glibconfig_conf.set('glib_ssize_t', ssizet_size)
1373 if host_machine.endian() == 'big'
1374 glibconfig_conf.set('g_byte_order', 'G_BIG_ENDIAN')
1375 glibconfig_conf.set('g_bs_native', 'BE')
1376 glibconfig_conf.set('g_bs_alien', 'LE')
1378 glibconfig_conf.set('g_byte_order', 'G_LITTLE_ENDIAN')
1379 glibconfig_conf.set('g_bs_native', 'LE')
1380 glibconfig_conf.set('g_bs_alien', 'BE')
1383 # === va_copy checks ===
1384 # we currently check for all three va_copy possibilities, so we get
1385 # all results in config.log for bug reports.
1388 foreach try_func : [ '__va_copy', 'va_copy' ]
1389 if cc.compiles('''#include <stdarg.h>
1392 # include "msvc_recommended_pragmas.h"
1394 void f (int i, ...) {
1395 va_list args1, args2;
1396 va_start (args1, i);
1398 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1400 va_end (args1); va_end (args2);
1405 }'''.format(try_func),
1406 name : try_func + ' check')
1407 va_copy_func = try_func
1410 if va_copy_func != ''
1411 glib_conf.set('G_VA_COPY', va_copy_func)
1412 glib_vacopy = '#define G_VA_COPY ' + va_copy_func
1414 glib_vacopy = '/* #undef G_VA_COPY */'
1417 va_list_val_copy_prog = '''
1420 void f (int i, ...) {
1421 va_list args1, args2;
1422 va_start (args1, i);
1424 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1426 va_end (args1); va_end (args2);
1434 rres = cc.run(va_list_val_copy_prog, name : 'va_lists can be copied as values')
1435 glib_va_val_copy = rres.returncode() == 0
1437 glib_va_val_copy = meson.get_cross_property('va_val_copy', true)
1439 if not glib_va_val_copy
1440 glib_vacopy = glib_vacopy + '\n#define G_VA_COPY_AS_ARRAY 1'
1441 glib_conf.set('G_VA_COPY_AS_ARRAY', 1)
1443 glibconfig_conf.set('glib_vacopy', glib_vacopy)
1445 # check for flavours of varargs macros
1446 g_have_iso_c_varargs = cc.compiles('''
1447 void some_func (void) {
1448 int a(int p1, int p2, int p3);
1449 #define call_a(...) a(1,__VA_ARGS__)
1451 }''', name : 'ISO C99 varargs macros in C')
1453 if g_have_iso_c_varargs
1454 glibconfig_conf.set('g_have_iso_c_varargs', '''
1456 # define G_HAVE_ISO_VARARGS 1
1460 g_have_iso_cxx_varargs = cxx.compiles('''
1461 void some_func (void) {
1462 int a(int p1, int p2, int p3);
1463 #define call_a(...) a(1,__VA_ARGS__)
1465 }''', name : 'ISO C99 varargs macros in C++')
1467 if g_have_iso_cxx_varargs
1468 glibconfig_conf.set('g_have_iso_cxx_varargs', '''
1470 # define G_HAVE_ISO_VARARGS 1
1474 g_have_gnuc_varargs = cc.compiles('''
1475 void some_func (void) {
1476 int a(int p1, int p2, int p3);
1477 #define call_a(params...) a(1,params)
1479 }''', name : 'GNUC varargs macros')
1481 if cc.has_header('alloca.h')
1482 glibconfig_conf.set('GLIB_HAVE_ALLOCA_H', true)
1484 has_syspoll = cc.has_header('sys/poll.h')
1485 has_systypes = cc.has_header('sys/types.h')
1487 glibconfig_conf.set('GLIB_HAVE_SYS_POLL_H', true)
1489 has_winsock2 = cc.has_header('winsock2.h')
1491 if has_syspoll and has_systypes
1493 #include<sys/poll.h>
1494 #include<sys/types.h>'''
1497 #define _WIN32_WINNT @0@
1498 #include <winsock2.h>'''.format(glib_conf.get('_WIN32_WINNT'))
1501 error('FIX POLL* defines')
1505 [ 'POLLIN', 'g_pollin', 1 ],
1506 [ 'POLLOUT', 'g_pollout', 4 ],
1507 [ 'POLLPRI', 'g_pollpri', 2 ],
1508 [ 'POLLERR', 'g_pollerr', 8 ],
1509 [ 'POLLHUP', 'g_pollhup', 16 ],
1510 [ 'POLLNVAL', 'g_pollnval', 32 ],
1513 if has_syspoll and has_systypes
1514 foreach d : poll_defines
1515 val = cc.compute_int(d[0], prefix: poll_includes)
1516 glibconfig_conf.set(d[1], val)
1519 # Due to a missed bug in configure.ac the poll test
1520 # never succeeded on Windows and used some pre-defined
1521 # values as a fallback. Keep using them to maintain
1522 # ABI compatibility with autotools builds of glibs
1523 # and with *any* glib-using code compiled against them,
1524 # since these values end up in a public header glibconfig.h.
1525 foreach d : poll_defines
1526 glibconfig_conf.set(d[1], d[2])
1530 # Internet address families
1531 # FIXME: what about Cygwin (G_WITH_CYGWIN)
1532 if host_system == 'windows'
1534 #include <winsock2.h>'''
1537 #include <sys/types.h>
1538 #include <sys/socket.h>'''
1542 [ 'AF_UNIX', 'g_af_unix' ],
1543 [ 'AF_INET', 'g_af_inet' ],
1544 [ 'AF_INET6', 'g_af_inet6' ],
1545 [ 'MSG_OOB', 'g_msg_oob' ],
1546 [ 'MSG_PEEK', 'g_msg_peek' ],
1547 [ 'MSG_DONTROUTE', 'g_msg_dontroute' ],
1549 foreach d : inet_defines
1550 val = cc.compute_int(d[0], prefix: inet_includes)
1551 glibconfig_conf.set(d[1], val)
1554 # We need a more robust approach here...
1555 host_cpu_family = host_machine.cpu_family()
1556 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 == 'aarch64' or host_cpu_family.startswith('crisv32') or host_cpu_family.startswith('etrax')
1557 glib_memory_barrier_needed = false
1558 elif host_cpu_family.startswith('sparc') or host_cpu_family.startswith('alpha') or host_cpu_family.startswith('powerpc') or host_cpu_family == 'ia64'
1559 glib_memory_barrier_needed = true
1561 warning('Unknown host cpu: ' + host_cpu_family)
1562 glib_memory_barrier_needed = true
1564 glibconfig_conf.set('G_ATOMIC_OP_MEMORY_BARRIER_NEEDED', glib_memory_barrier_needed)
1566 # We need to decide at configure time if GLib will use real atomic
1567 # operations ("lock free") or emulated ones with a mutex. This is
1568 # because we must put this information in glibconfig.h so we know if
1569 # it is safe or not to inline using compiler intrinsics directly from
1572 # We also publish the information via G_ATOMIC_LOCK_FREE in case the
1573 # user is interested in knowing if they can use the atomic ops across
1576 # We can currently support the atomic ops natively when building GLib
1577 # with recent versions of GCC or MSVC.
1579 # Note that the atomic ops are only available with GCC on x86 when
1580 # using -march=i486 or higher. If we detect that the atomic ops are
1581 # not available but would be available given the right flags, we want
1582 # to abort and advise the user to fix their CFLAGS. It's better to do
1583 # that then to silently fall back on emulated atomic ops just because
1584 # the user had the wrong build environment.
1585 atomictest = '''int main() {
1586 volatile int atomic = 2;
1587 __sync_bool_compare_and_swap (&atomic, 2, 3);
1593 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1594 #error "compiler has atomic ops, but doesn't define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"
1598 # We know that we can always use real ("lock free") atomic operations with MSVC
1599 if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl' or cc.links(atomictest, name : 'atomic ops')
1600 have_atomic_lock_free = true
1601 if cc.get_id() == 'gcc' and not cc.compiles(atomicdefine, name : 'atomic ops define')
1602 # Old gcc release may provide
1603 # __sync_bool_compare_and_swap but doesn't define
1604 # __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1605 glib_conf.set('__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4', true)
1608 have_atomic_lock_free = false
1609 if host_machine.cpu_family() == 'x86' and cc.links(atomictest, args : '-march=i486')
1610 error('GLib must be built with -march=i486 or later.')
1613 glibconfig_conf.set('G_ATOMIC_LOCK_FREE', have_atomic_lock_free)
1617 # Determination of thread implementation
1618 if host_system == 'windows' and not get_option('force_posix_threads')
1620 threads_implementation = 'win32'
1621 glibconfig_conf.set('g_threads_impl_def', 'WIN32')
1622 glib_conf.set('THREADS_WIN32', 1)
1624 thread_dep = dependency('threads')
1625 threads_implementation = 'posix'
1626 pthread_prefix = '''
1628 # define _GNU_SOURCE
1630 #include <pthread.h>'''
1631 glibconfig_conf.set('g_threads_impl_def', 'POSIX')
1632 glib_conf.set('THREADS_POSIX', 1)
1633 if cc.has_header_symbol('pthread.h', 'pthread_attr_setstacksize')
1634 glib_conf.set('HAVE_PTHREAD_ATTR_SETSTACKSIZE', 1)
1636 if cc.has_header_symbol('pthread.h', 'pthread_condattr_setclock')
1637 glib_conf.set('HAVE_PTHREAD_CONDATTR_SETCLOCK', 1)
1639 if cc.has_header_symbol('pthread.h', 'pthread_cond_timedwait_relative_np')
1640 glib_conf.set('HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP', 1)
1642 if cc.has_header_symbol('pthread.h', 'pthread_getname_np', prefix : pthread_prefix)
1643 glib_conf.set('HAVE_PTHREAD_GETNAME_NP', 1)
1645 # Assume that pthread_setname_np is available in some form; same as configure
1646 if cc.links(pthread_prefix + '''
1648 pthread_setname_np("example");
1651 name : 'pthread_setname_np(const char*)',
1652 dependencies : thread_dep)
1654 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
1655 elif cc.links(pthread_prefix + '''
1657 pthread_setname_np(pthread_self(), "example");
1660 name : 'pthread_setname_np(pthread_t, const char*)',
1661 dependencies : thread_dep)
1662 # Linux, Solaris, etc.
1663 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
1667 # FIXME: we should make it print the result and always return 0, so that
1668 # the output in meson shows up as green
1669 stack_grows_check_prog = '''
1670 volatile int *a = 0, *b = 0;
1682 return b > a ? 0 : 1;
1686 rres = cc.run(stack_grows_check_prog, name : 'stack grows check')
1687 growing_stack = rres.returncode() == 0
1689 growing_stack = meson.get_cross_property('growing_stack', false)
1692 glibconfig_conf.set10('G_HAVE_GROWING_STACK', growing_stack)
1696 # We should never use the MinGW C library's iconv because it may not be
1697 # available in the actual runtime environment. On Windows, we always use
1698 # the built-in implementation
1699 iconv_opt = get_option('iconv')
1700 if host_system == 'windows'
1702 # We have a #include "win_iconv.c" in gconvert.c on Windows, so we don't need
1703 # any external library for it
1704 if iconv_opt != 'auto'
1705 warning('-Diconv was set to @0@, which was ignored')
1709 if ['auto', 'libc'].contains(iconv_opt) and cc.has_function('iconv_open')
1713 if not found_iconv and ['auto', 'external'].contains(iconv_opt) and cc.has_header_symbol('iconv.h', 'iconv_open')
1714 libiconv = [cc.find_library('iconv')]
1719 error('iconv implementation "@0@" not found'.format(iconv_opt))
1723 if get_option('internal_pcre')
1725 use_system_pcre = false
1727 pcre = dependency('libpcre', version: '>= 8.31', required : false) # Should check for Unicode support, too. FIXME
1729 if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl'
1730 # MSVC: Search for the PCRE library by the configuration, which corresponds
1731 # to the output of CMake builds of PCRE. Note that debugoptimized
1732 # is really a Release build with .PDB files.
1733 if buildtype == 'debug'
1734 pcre = cc.find_library('pcred', required : false)
1736 pcre = cc.find_library('pcre', required : false)
1740 use_system_pcre = pcre.found()
1742 glib_conf.set('USE_SYSTEM_PCRE', use_system_pcre)
1744 use_pcre_static_flag = false
1746 if host_system == 'windows'
1747 if not use_system_pcre
1748 use_pcre_static_flag = true
1750 pcre_static = cc.links('''#define PCRE_STATIC
1758 name : 'Windows system PCRE is a static build')
1760 use_pcre_static_flag = true
1765 libm = cc.find_library('m', required : false)
1766 libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])
1768 # Don't use the bundled ZLib sources until we are sure that we can't find it on
1770 libz_dep = dependency('zlib', required : false)
1771 if not libz_dep.found()
1772 if cc.get_id() != 'msvc' and cc.get_id() != 'clang-cl'
1773 libz_dep = cc.find_library('z', required : false)
1775 libz_dep = cc.find_library('zlib1', required : false)
1776 if not libz_dep.found()
1777 libz_dep = cc.find_library('zlib', required : false)
1780 if not libz_dep.found() or not cc.has_header('zlib.h')
1781 libz_dep = subproject('zlib').get_variable('zlib_dep')
1785 # First check in libc, fallback to libintl, and as last chance build
1786 # proxy-libintl subproject.
1787 # FIXME: glib-gettext.m4 has much more checks to detect broken/uncompatible
1788 # implementations. This could be extended if issues are found in some platforms.
1789 if cc.has_function('ngettext')
1791 have_bind_textdomain_codeset = cc.has_function('bind_textdomain_codeset')
1793 libintl = cc.find_library('intl', required : false)
1794 if not libintl.found()
1795 libintl = subproject('proxy-libintl').get_variable('intl_dep')
1796 have_bind_textdomain_codeset = true # proxy-libintl supports it
1798 have_bind_textdomain_codeset = cc.has_function('bind_textdomain_codeset',
1799 dependencies : libintl)
1803 glib_conf.set('HAVE_BIND_TEXTDOMAIN_CODESET', have_bind_textdomain_codeset)
1805 # We require gettext to always be present
1806 glib_conf.set('HAVE_DCGETTEXT', 1)
1807 glib_conf.set('HAVE_GETTEXT', 1)
1809 glib_conf.set_quoted('GLIB_LOCALE_DIR', join_paths(glib_datadir, 'locale'))
1811 # libmount is only used by gio, but we need to fetch the libs to generate the
1812 # pkg-config file below
1814 if host_system == 'linux' and get_option('libmount')
1815 libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
1816 glib_conf.set('HAVE_LIBMOUNT', 1)
1819 if host_system == 'windows'
1820 winsock2 = cc.find_library('ws2_32')
1824 if host_system == 'linux'
1825 selinux_dep = dependency('libselinux', required: get_option('selinux'))
1827 glib_conf.set('HAVE_SELINUX', selinux_dep.found())
1831 if host_system != 'windows' and get_option('xattr')
1832 # either glibc or libattr can provide xattr support
1833 # for both of them, we check for getxattr being in
1834 # the library and a valid xattr header.
1837 if cc.has_function('getxattr') and cc.has_header('sys/xattr.h')
1838 glib_conf.set('HAVE_SYS_XATTR_H', 1)
1839 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_SYS_XATTR_H')
1840 #failure. try libattr
1841 elif cc.has_header_symbol('attr/xattr.h', 'getxattr')
1842 glib_conf.set('HAVE_ATTR_XATTR_H', 1)
1843 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_ATTR_XATTR_H')
1844 xattr_dep = [cc.find_library('xattr')]
1846 error('No getxattr implementation found in C library or libxattr')
1849 glib_conf.set('HAVE_XATTR', 1)
1850 if cc.compiles(glib_conf_prefix + '''
1852 #ifdef HAVE_SYS_TYPES_H
1853 #include <sys/types.h>
1855 #ifdef HAVE_SYS_XATTR_H
1856 #include <sys/xattr.h>
1857 #elif HAVE_ATTR_XATTR_H
1858 #include <attr/xattr.h>
1862 ssize_t len = getxattr("", "", NULL, 0, 0, XATTR_NOFOLLOW);
1865 name : 'XATTR_NOFOLLOW')
1866 glib_conf.set('HAVE_XATTR_NOFOLLOW', 1)
1870 # If strlcpy is present (BSD and similar), check that it conforms to the BSD
1871 # specification. Specifically Solaris 8's strlcpy() does not, see
1872 # https://bugzilla.gnome.org/show_bug.cgi?id=53933 for further context.
1873 if cc.has_function('strlcpy')
1875 rres = cc.run('''#include <stdlib.h>
1879 (void) strlcpy (p, "hi", 10);
1880 if (strlcat (p, "bye", 0) != 3)
1884 name : 'OpenBSD strlcpy/strlcat')
1885 if rres.compiled() and rres.returncode() == 0
1886 glib_conf.set('HAVE_STRLCPY', 1)
1888 elif meson.get_cross_property('have_strlcpy', false)
1889 glib_conf.set('HAVE_STRLCPY', 1)
1893 cmdline_test_code = '''
1895 #include <sys/stat.h>
1904 /* This code is a dumbed-down version of g_file_get_contents() */
1908 #define BUFSIZE 1024
1909 char result[BUFSIZE];
1910 struct stat stat_buf;
1912 int fd = open ("/proc/self/cmdline", O_RDONLY|O_BINARY);
1914 assert (fstat (fd, &stat_buf) == 0);
1916 if (stat_buf.st_size > 0 && S_ISREG (stat_buf.st_mode))
1917 assert (read (fd, result, BUFSIZE) > 0);
1920 FILE *f = fdopen (fd, "r");
1922 assert (fread (result, 1, BUFSIZE, f) > 0);
1931 exit (__getcmdline ());
1935 rres = cc.run(cmdline_test_code, name : '/proc/self/cmdline')
1936 have_proc_self_cmdline = rres.compiled() and rres.returncode() == 0
1938 have_proc_self_cmdline = meson.get_cross_property('have_proc_self_cmdline', false)
1941 glib_conf.set('HAVE_PROC_SELF_CMDLINE', have_proc_self_cmdline)
1943 python = import('python').find_installation('python3')
1944 # used for '#!/usr/bin/env <name>'
1945 python_name = 'python3'
1947 python_version = python.language_version()
1948 python_version_req = '>=3.4'
1949 if not python_version.version_compare(python_version_req)
1950 error('Requires Python @0@, @1@ found.'.format(python_version_req, python_version))
1953 # Determine which user environment-dependent files that we want to install
1954 have_bash = find_program('bash', required : false).found() # For completion scripts
1955 have_sh = find_program('sh', required : false).found() # For glib-gettextize
1957 # Some installed tests require a custom environment
1958 env_program = find_program('env', required: installed_tests_enabled)
1960 # FIXME: How to detect Solaris? https://github.com/mesonbuild/meson/issues/1578
1961 if host_system == 'sunos'
1962 glib_conf.set('_XOPEN_SOURCE_EXTENDED', 1)
1963 glib_conf.set('_XOPEN_SOURCE', 2)
1964 glib_conf.set('__EXTENSIONS__',1)
1967 # Sadly Meson does not expose this value:
1968 # https://github.com/mesonbuild/meson/pull/3460
1969 if host_system == 'windows'
1970 # Autotools explicitly removed --Wl,--export-all-symbols from windows builds,
1971 # with no explanation. Do the same here for now but this could be revisited if
1973 export_dynamic_ldflags = []
1974 elif host_system == 'cygwin'
1975 export_dynamic_ldflags = ['-Wl,--export-all-symbols']
1976 elif host_system == 'darwin'
1977 export_dynamic_ldflags = []
1979 export_dynamic_ldflags = ['-Wl,--export-dynamic']
1984 if host_system == 'windows' and cc.get_id() != 'msvc' and cc.get_id() != 'clang-cl'
1985 # Ensure MSVC-compatible struct packing convention is used when
1986 # compiling for Win32 with gcc. It is used for the whole project and exposed
1988 win32_cflags = ['-mms-bitfields']
1989 add_project_arguments(win32_cflags, language : 'c')
1991 # Win32 API libs, used only by libglib and exposed in glib-2.0.pc
1992 win32_ldflags = ['-lws2_32', '-lole32', '-lwinmm', '-lshlwapi']
1993 elif host_system == 'cygwin'
1994 win32_ldflags = ['-luser32', '-lkernel32']
1998 want_dtrace = get_option('dtrace')
1999 enable_dtrace = false
2001 # Since dtrace support is opt-in we just error out if it was requested but
2002 # is not available. We don't bother with autodetection yet.
2005 error('GLib dtrace support not yet compatible with macOS dtrace')
2007 dtrace = find_program('dtrace', required : true) # error out if not found
2008 if not cc.has_header('sys/sdt.h')
2009 error('dtrace support needs sys/sdt.h header')
2011 # FIXME: autotools build also passes -fPIC -DPIC but is it needed in this case?
2012 dtrace_obj_gen = generator(dtrace,
2013 output : '@BASENAME@.o',
2014 arguments : ['-G', '-s', '@INPUT@', '-o', '@OUTPUT@'])
2015 # FIXME: $(SED) -e "s,define STAP_HAS_SEMAPHORES 1,undef STAP_HAS_SEMAPHORES,"
2016 # -e "s,define _SDT_HAS_SEMAPHORES 1,undef _SDT_HAS_SEMAPHORES,"
2017 dtrace_hdr_gen = generator(dtrace,
2018 output : '@BASENAME@.h',
2019 arguments : ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@'])
2020 glib_conf.set('HAVE_DTRACE', 1)
2021 enable_dtrace = true
2025 want_systemtap = get_option('systemtap')
2026 enable_systemtap = false
2028 if want_systemtap and enable_dtrace
2029 tapset_install_dir = get_option('tapset_install_dir')
2030 if tapset_install_dir == ''
2031 tapset_install_dir = join_paths(get_option('datadir'), 'systemtap/tapset', host_machine.cpu_family())
2033 stp_cdata = configuration_data()
2034 stp_cdata.set('ABS_GLIB_RUNTIME_LIBDIR', glib_libdir)
2035 stp_cdata.set('LT_CURRENT', minor_version * 100)
2036 stp_cdata.set('LT_REVISION', micro_version)
2037 enable_systemtap = true
2041 test_timeout_slow = 180
2043 pkg = import('pkgconfig')
2044 windows = import('windows')
2051 # Don’t build the tests unless we can run them (either natively or in an exe wrapper)
2052 build_tests = not meson.is_cross_build() or (meson.is_cross_build() and meson.has_exe_wrapper())
2057 # xgettext is optional (on Windows for instance)
2058 if find_program('xgettext', required : get_option('nls')).found()
2062 # Install glib-gettextize executable, if a UNIX-style shell is found
2064 # These should not contain " quotes around the values
2065 gettextize_conf = configuration_data()
2066 gettextize_conf.set('PACKAGE', 'glib')
2067 gettextize_conf.set('VERSION', meson.project_version())
2068 gettextize_conf.set('prefix', glib_prefix)
2069 gettextize_conf.set('datarootdir', glib_datadir)
2070 gettextize_conf.set('datadir', glib_datadir)
2071 configure_file(input : 'glib-gettextize.in',
2072 install_dir : glib_bindir,
2073 output : 'glib-gettextize',
2074 configuration : gettextize_conf)
2077 # Install m4 macros that other projects use
2078 install_data('m4macros/glib-2.0.m4', 'm4macros/glib-gettext.m4', 'm4macros/gsettings.m4',
2079 install_dir : join_paths(get_option('datadir'), 'aclocal'))
2081 if host_system != 'windows'
2082 # Install Valgrind suppression file (except on Windows,
2083 # as Valgrind is currently not supported on Windows)
2084 install_data('glib.supp',
2085 install_dir : join_paths(get_option('datadir'), 'glib-2.0', 'valgrind'))
2088 configure_file(output : 'config.h', configuration : glib_conf)
2090 if host_system == 'windows'
2091 install_headers([ 'msvc_recommended_pragmas.h' ], subdir : 'glib-2.0')
2094 if get_option('man')
2095 xsltproc = find_program('xsltproc', required : true)
2096 xsltproc_command = [
2099 '--stringparam', 'man.output.quietly', '1',
2100 '--stringparam', 'funcsynopsis.style', 'ansi',
2101 '--stringparam', 'man.th.extra1.suppress', '1',
2102 '--stringparam', 'man.authors.section.enabled', '0',
2103 '--stringparam', 'man.copyright.section.enabled', '0',
2105 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl',
2108 man1_dir = get_option('mandir') + '/man1'
2111 gnome = import('gnome')
2112 subdir('docs/reference')