1 project('glib', 'c', 'cpp',
3 meson_version : '>= 0.46.0',
5 'buildtype=debugoptimized',
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')
30 # -mms-bitfields vs -fnative-struct ?
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
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')
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')
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)
87 glib_conf.set('GLIB_VERSION', glib_version)
88 glib_conf.set('GLIB_MAJOR_VERSION', major_version)
89 glib_conf.set('GLIB_MINOR_VERSION', minor_version)
90 glib_conf.set('GLIB_MICRO_VERSION', micro_version)
91 glib_conf.set('GLIB_INTERFACE_AGE', interface_age)
92 glib_conf.set('GLIB_BINARY_AGE', binary_age)
93 glib_conf.set_quoted('GETTEXT_PACKAGE', 'glib20')
94 glib_conf.set_quoted('PACKAGE_BUGREPORT', 'http://bugzilla.gnome.org/enter_bug.cgi?product=glib')
95 glib_conf.set_quoted('PACKAGE_NAME', 'glib')
96 glib_conf.set_quoted('PACKAGE_STRING', 'glib @0@'.format(meson.project_version()))
97 glib_conf.set_quoted('PACKAGE_TARNAME', 'glib')
98 glib_conf.set_quoted('PACKAGE_URL', '')
99 glib_conf.set_quoted('PACKAGE_VERSION', meson.project_version())
100 glib_conf.set('ENABLE_NLS', 1)
102 # Variables used in glib-gettextize and pkg-config files
103 # These should not contain " quotes around the values
104 glib_conf.set('PACKAGE', 'glib')
105 glib_conf.set('VERSION', meson.project_version())
106 glib_conf.set('prefix', glib_prefix)
107 glib_conf.set('exec_prefix', glib_prefix)
108 glib_conf.set('libdir', glib_libdir)
109 glib_conf.set('includedir', glib_includedir)
110 glib_conf.set('datadir', glib_datadir)
111 glib_conf.set('datarootdir', glib_datadir)
113 # used by the .rc.in files
114 glibconfig_conf.set('LT_CURRENT_MINUS_AGE', soversion)
116 glib_conf.set('_GNU_SOURCE', 1)
118 if host_system == 'windows'
119 # Poll doesn't work on devices on Windows
120 glib_conf.set('BROKEN_POLL', true)
123 # Check for GNU visibility attributes
124 g_have_gnuc_visibility = cc.compiles('''
126 __attribute__ ((visibility ("hidden")))
131 __attribute__ ((visibility ("internal")))
136 __attribute__ ((visibility ("protected")))
141 __attribute__ ((visibility ("default")))
154 # Not supported by MSVC, but MSVC also won't support visibility,
155 # so it's OK to pass -Werror explicitly. Replace with
156 # override_options : 'werror=true' once that is supported
158 name : 'GNU C visibility attributes test')
160 if g_have_gnuc_visibility
161 glibconfig_conf.set('G_HAVE_GNUC_VISIBILITY', '1')
164 # Detect and set symbol visibility
165 glib_hidden_visibility_args = []
166 if get_option('default_library') != 'static'
167 if host_system == 'windows'
168 glib_conf.set('DLL_EXPORT', true)
169 if cc.get_id() == 'msvc'
170 glib_conf.set('_GLIB_EXTERN', '__declspec(dllexport) extern')
171 elif cc.has_argument('-fvisibility=hidden')
172 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) __declspec(dllexport) extern')
173 glib_hidden_visibility_args = ['-fvisibility=hidden']
175 elif cc.has_argument('-fvisibility=hidden')
176 glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) extern')
177 glib_hidden_visibility_args = ['-fvisibility=hidden']
181 if host_system == 'windows' and get_option('default_library') == 'static'
182 glibconfig_conf.set('GLIB_STATIC_COMPILATION', '1')
183 glibconfig_conf.set('GOBJECT_STATIC_COMPILATION', '1')
186 # FIXME: what about Cygwin (G_WITH_CYGWIN)
187 if host_system == 'windows'
188 glib_os = '''#define G_OS_WIN32
189 #define G_PLATFORM_WIN32'''
191 glib_os = '#define G_OS_UNIX'
193 glibconfig_conf.set('glib_os', glib_os)
195 # We need to know the build type to determine what .lib files we need on Visual Studio
196 # for dependencies that don't normally come with pkg-config files for Visual Studio builds
197 buildtype = get_option('buildtype')
199 glib_debug_cflags = []
200 if buildtype.startswith('debug')
201 glib_debug_cflags += ['-DG_ENABLE_DEBUG']
202 elif buildtype == 'release'
203 glib_debug_cflags += ['-DG_DISABLE_CAST_CHECKS']
206 add_project_arguments(glib_debug_cflags, language: 'c')
208 # check for header files
243 'dirent.h', # MSC does not come with this by default
244 'sys/time.h', # MSC does not come with this by default
262 define = 'HAVE_' + h.underscorify().to_upper()
263 glib_conf.set(define, 1)
264 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
268 if cc.has_header('linux/netlink.h')
269 glib_conf.set('HAVE_NETLINK', 1)
272 if glib_conf.has('HAVE_LOCALE_H')
273 if cc.has_header_symbol('locale.h', 'LC_MESSAGES')
274 glib_conf.set('HAVE_LC_MESSAGES', 1)
278 struct_stat_blkprefix = '''
279 #include <sys/types.h>
280 #include <sys/stat.h>
284 #ifdef HAVE_SYS_STATFS_H
285 #include <sys/statfs.h>
287 #ifdef HAVE_SYS_PARAM_H
288 #include <sys/param.h>
290 #ifdef HAVE_SYS_MOUNT_H
291 #include <sys/mount.h>
296 [ 'stat', 'st_mtimensec' ],
297 [ 'stat', 'st_mtim.tv_nsec' ],
298 [ 'stat', 'st_atimensec' ],
299 [ 'stat', 'st_atim.tv_nsec' ],
300 [ 'stat', 'st_ctimensec' ],
301 [ 'stat', 'st_ctim.tv_nsec' ],
302 [ 'stat', 'st_birthtime' ],
303 [ 'stat', 'st_birthtimensec' ],
304 [ 'stat', 'st_birthtim' ],
305 [ 'stat', 'st_birthtim.tv_nsec' ],
306 [ 'stat', 'st_blksize', struct_stat_blkprefix ],
307 [ 'stat', 'st_blocks', struct_stat_blkprefix ],
308 [ 'statfs', 'f_fstypename', struct_stat_blkprefix ],
309 [ 'statfs', 'f_bavail', struct_stat_blkprefix ],
310 [ 'dirent', 'd_type', '''#include <sys/types.h>
311 #include <dirent.h>''' ],
314 foreach m : struct_members
315 header_check_prefix = glib_conf_prefix
317 header_check_prefix = header_check_prefix + m[2]
319 header_check_prefix = header_check_prefix + '#include <sys/stat.h>'
321 if cc.has_member('struct ' + m[0], m[1], prefix : header_check_prefix)
322 define = 'HAVE_STRUCT_@0@_@1@'.format(m[0].to_upper(), m[1].underscorify().to_upper())
323 glib_conf.set(define, 1)
324 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
330 if cc.get_id() == 'gcc' or cc.get_id() == 'clang'
333 '-Wduplicated-branches',
334 '-Wstrict-prototypes',
336 '-Werror=declaration-after-statement',
338 '-Werror=format-security',
339 '-Werror=implicit-function-declaration',
341 '-Werror=missing-include-dirs',
342 '-Werror=missing-prototypes',
343 '-Werror=pointer-arith',
348 if get_option('bsymbolic_functions')
349 test_c_link_args += ['-Wl,-Bsymbolic-functions']
353 test_c_link_args = []
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
364 glib_link_flags = cc.get_supported_link_arguments(test_c_link_args)
366 # Windows Support (Vista+)
367 if host_system == 'windows'
368 glib_conf.set('_WIN32_WINNT', '0x0601')
429 if glib_conf.has('HAVE_SYS_STATVFS_H')
430 functions += ['statvfs']
432 have_func_statvfs = false
434 if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
435 functions += ['statfs']
437 have_func_statfs = false
440 if host_system == 'windows'
441 iphlpapi_dep = cc.find_library('iphlpapi')
442 iphlpapi_funcs = ['if_nametoindex', 'if_indextoname']
443 foreach ifunc : iphlpapi_funcs
444 if cc.has_function(ifunc,
445 prefix : '#define _WIN32_WINNT 0x0601\n#include <winsock2.h>\n#include <iphlpapi.h>',
446 dependencies : iphlpapi_dep)
447 idefine = 'HAVE_' + ifunc.underscorify().to_upper()
448 glib_conf.set(idefine, 1)
449 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(idefine)
450 set_variable('have_func_' + ifunc, true)
452 set_variable('have_func_' + ifunc, false)
456 functions += ['if_indextoname', 'if_nametoindex']
459 # AIX splice is something else
460 if host_system != 'aix'
461 functions += ['splice']
464 foreach f : functions
465 if cc.has_function(f)
466 define = 'HAVE_' + f.underscorify().to_upper()
467 glib_conf.set(define, 1)
468 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
469 set_variable('have_func_' + f, true)
471 set_variable('have_func_' + f, false)
475 # Check that stpcpy() is usable; must use header
476 if cc.has_function('stpcpy', prefix : '#include <string.h>')
477 glib_conf.set('HAVE_STPCPY', 1)
480 # Check that posix_memalign() is usable; must use header
481 if cc.has_function('posix_memalign', prefix : '#include <stdlib.h>')
482 glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
485 # Check whether strerror_r returns char *
486 if have_func_strerror_r
487 if cc.compiles('''#define _GNU_SOURCE
490 char error_string[256];
491 char *ptr = strerror_r (-2, error_string, 256);
492 char c = *strerror_r (-2, error_string, 256);
493 return c != 0 && ptr != (void*) 0L;
496 name : 'strerror_r() returns char *')
497 glib_conf.set('STRERROR_R_CHAR_P', 1,
498 description: 'Defined if strerror_r returns char *')
502 # Special-case these functions that have alternative names on Windows/MSVC
503 if cc.has_function('snprintf') or cc.has_header_symbol('stdio.h', 'snprintf')
504 glib_conf.set('HAVE_SNPRINTF', 1)
505 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF 1\n'
506 elif cc.has_function('_snprintf') or cc.has_header_symbol('stdio.h', '_snprintf')
507 hack_define = '1\n#define snprintf _snprintf'
508 glib_conf.set('HAVE_SNPRINTF', hack_define)
509 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF ' + hack_define
512 if cc.has_function('strcasecmp')
513 glib_conf.set('HAVE_STRCASECMP', 1)
514 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP 1\n'
515 elif cc.has_function('_stricmp')
516 hack_define = '1\n#define strcasecmp _stricmp'
517 glib_conf.set('HAVE_STRCASECMP', hack_define)
518 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP ' + hack_define
521 if cc.has_function('strncasecmp')
522 glib_conf.set('HAVE_STRNCASECMP', 1)
523 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP 1\n'
524 elif cc.has_function('_strnicmp')
525 hack_define = '1\n#define strncasecmp _strnicmp'
526 glib_conf.set('HAVE_STRNCASECMP', hack_define)
527 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP ' + hack_define
530 if cc.has_header_symbol('sys/sysmacros.h', 'major')
531 glib_conf.set('MAJOR_IN_SYSMACROS', 1)
532 elif cc.has_header_symbol('sys/mkdev.h', 'major')
533 glib_conf.set('MAJOR_IN_MKDEV', 1)
536 if cc.has_header_symbol('dlfcn.h', 'RTLD_LAZY')
537 glib_conf.set('HAVE_RTLD_LAZY', 1)
540 if cc.has_header_symbol('dlfcn.h', 'RTLD_NOW')
541 glib_conf.set('HAVE_RTLD_NOW', 1)
544 if cc.has_header_symbol('dlfcn.h', 'RTLD_GLOBAL')
545 glib_conf.set('HAVE_RTLD_GLOBAL', 1)
548 # Check whether to use statfs or statvfs
549 # Some systems have both statfs and statvfs, pick the most "native" for these
550 if have_func_statfs and have_func_statvfs
551 # on solaris and irix, statfs doesn't even have the f_bavail field
552 if not glib_conf.has('HAVE_STRUCT_STATFS_F_BAVAIL')
553 have_func_statfs = false
555 # at least on linux, statfs is the actual syscall
556 have_func_statvfs = false
560 glib_conf.set('USE_STATFS', 1)
561 stat_func_to_use = 'statfs'
562 elif have_func_statvfs
563 glib_conf.set('USE_STATVFS', 1)
564 stat_func_to_use = 'statvfs'
566 stat_func_to_use = 'neither'
568 message('Checking whether to use statfs or statvfs .. ' + stat_func_to_use)
570 if host_system == 'linux'
571 if cc.has_function('mkostemp',
572 prefix: '''#define _GNU_SOURCE
573 #include <stdlib.h>''')
574 glib_conf.set('HAVE_MKOSTEMP', 1)
579 glib_have_os_x_9_or_later = false
580 glib_have_carbon = false
581 glib_have_cocoa = false
582 if host_system == 'darwin'
583 add_languages('objc')
584 objcc = meson.get_compiler('objc')
586 osx_ldflags += ['-Wl,-framework,CoreFoundation']
588 # Mac OS X Carbon support
589 glib_have_carbon = objcc.compiles('''#include <Carbon/Carbon.h>
590 #include <CoreServices/CoreServices.h>''',
591 name : 'Mac OS X Carbon support')
594 glib_conf.set('HAVE_CARBON', true)
595 osx_ldflags += '-Wl,-framework,Carbon'
596 glib_have_os_x_9_or_later = objcc.compiles('''#include <AvailabilityMacros.h>
597 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
598 #error Compiling for minimum OS X version before 10.9
600 name : 'OS X 9 or later')
603 # Mac OS X Cocoa support
604 glib_have_cocoa = objcc.compiles('''#include <Cocoa/Cocoa.h>
605 #ifdef GNUSTEP_BASE_VERSION
606 #error "Detected GNUstep, not Cocoa"
608 name : 'Mac OS X Cocoa support')
611 glib_conf.set('HAVE_COCOA', true)
612 osx_ldflags += ['-Wl,-framework,Foundation', '-Wl,-framework,AppKit']
615 # FIXME: libgio mix C and objC source files and there is no way to reliably
616 # know which language flags it's going to use to link. Add to both languages
617 # for now. See https://github.com/mesonbuild/meson/issues/3585.
618 add_project_link_arguments(osx_ldflags, language : ['objc', 'c'])
622 if cc.links('''#include <linux/futex.h>
623 #include <sys/syscall.h>
625 int main (int argc, char ** argv) {
626 syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
628 }''', name : 'futex(2) system call')
629 glib_conf.set('HAVE_FUTEX', 1)
632 # Check for eventfd(2)
633 if cc.links('''#include <sys/eventfd.h>
635 int main (int argc, char ** argv) {
636 eventfd (0, EFD_CLOEXEC);
638 }''', name : 'eventfd(2) system call')
639 glib_conf.set('HAVE_EVENTFD', 1)
642 clock_gettime_test_code = '''
645 int main (int argc, char ** argv) {
646 return clock_gettime(CLOCK_REALTIME, &t);
649 if cc.links(clock_gettime_test_code, name : 'clock_gettime')
650 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
651 elif cc.links(clock_gettime_test_code, args : '-lrt', name : 'clock_gettime in librt')
652 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
653 librt = cc.find_library('rt')
656 # if statfs() takes 2 arguments (Posix) or 4 (Solaris)
658 if cc.compiles(glib_conf_prefix + '''
660 #ifdef HAVE_SYS_PARAM_H
661 #include <sys/param.h>
663 #ifdef HAVE_SYS_VFS_H
666 #ifdef HAVE_SYS_MOUNT_H
667 #include <sys/mount.h>
669 #ifdef HAVE_SYS_STATFS_H
670 #include <sys/statfs.h>
672 void some_func (void) {
675 }''', name : 'number of arguments to statfs() (n=2)')
676 glib_conf.set('STATFS_ARGS', 2)
677 elif cc.compiles(glib_conf_prefix + '''
679 #ifdef HAVE_SYS_PARAM_H
680 #include <sys/param.h>
682 #ifdef HAVE_SYS_VFS_H
685 #ifdef HAVE_SYS_MOUNT_H
686 #include <sys/mount.h>
688 #ifdef HAVE_SYS_STATFS_H
689 #include <sys/statfs.h>
691 void some_func (void) {
693 statfs("/", &st, sizeof (st), 0);
694 }''', name : 'number of arguments to statfs() (n=4)')
695 glib_conf.set('STATFS_ARGS', 4)
697 error('Unable to determine number of arguments to statfs()')
701 # open takes O_DIRECTORY as an option
703 if cc.compiles('''#include <fcntl.h>
704 #include <sys/types.h>
705 #include <sys/stat.h>],
706 void some_func (void) {
707 open(0, O_DIRECTORY, 0);
708 }''', name : 'open() option O_DIRECTORY')
709 glib_conf.set('HAVE_OPEN_O_DIRECTORY', 1)
712 # Check whether there is a vsnprintf() function with C99 semantics installed.
713 # AC_FUNC_VSNPRINTF_C99
714 # Check whether there is a snprintf() function with C99 semantics installed.
715 # AC_FUNC_SNPRINTF_C99
717 have_good_vsnprintf = false
718 have_good_snprintf = false
720 if host_system == 'windows' and cc.get_id() == 'msvc'
721 # Unfortunately the Visual Studio 2015+ implementations of C99-style
722 # snprintf and vsnprintf don't seem to be quite good enough.
723 # (Sorry, I don't know exactly what is the problem,
724 # but it is related to floating point formatting and decimal point vs. comma.)
725 # The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
726 # rigorous enough to notice, though.
727 glib_conf.set('HAVE_C99_SNPRINTF', false)
728 glib_conf.set('HAVE_C99_VSNPRINTF', false)
730 vsnprintf_c99_test_code = '''
742 r = vsnprintf(buffer, 5, s, args);
748 /* AIX 5.1 and Solaris seems to have a half-baked vsnprintf()
749 implementation. The above will return 7 but if you replace
750 the size of the buffer with 0, it borks! */
752 r = vsnprintf(buffer, 0, s, args);
769 rres = cc.run(vsnprintf_c99_test_code, name : 'C99 vsnprintf')
770 if rres.compiled() and rres.returncode() == 0
771 glib_conf.set('HAVE_C99_VSNPRINTF', 1)
772 have_good_vsnprintf = true
775 have_good_vsnprintf = meson.get_cross_property('have_c99_vsnprintf', false)
776 glib_conf.set('HAVE_C99_VSNPRINTF', have_good_vsnprintf)
779 snprintf_c99_test_code = '''
790 r = snprintf(buffer, 5, "1234567");
795 r = snprintf(buffer, 0, "1234567");
800 r = snprintf(NULL, 0, "1234567");
816 rres = cc.run(snprintf_c99_test_code, name : 'C99 snprintf')
817 if rres.compiled() and rres.returncode() == 0
818 glib_conf.set('HAVE_C99_SNPRINTF', 1)
819 have_good_snprintf = true
822 have_good_snprintf = meson.get_cross_property('have_c99_snprintf', false)
823 glib_conf.set('HAVE_C99_SNPRINTF', have_good_snprintf)
827 if host_system == 'windows'
828 glib_conf.set_quoted('EXEEXT', '.exe')
830 glib_conf.set('EXEEXT', '')
833 if have_good_vsnprintf and have_good_snprintf
834 # Our printf is 'good' only if vsnpintf()/snprintf() supports C99 well enough
835 glib_conf.set('HAVE_GOOD_PRINTF', 1) # FIXME: Check for HAVE_UNIX98_PRINTF?
837 glib_conf.set('HAVE_VASPRINTF', 1)
840 # Check whether the printf() family supports Unix98 %n$ positional parameters
841 # AC_FUNC_PRINTF_UNIX98
842 # Nothing uses HAVE_UNIX98_PRINTF
845 # Check for nl_langinfo and CODESET
846 # FIXME: Check for HAVE_BIND_TEXTDOMAIN_CODESET
847 if cc.links('''#include <langinfo.h>
848 int main (int argc, char ** argv) {
849 char *codeset = nl_langinfo (CODESET);
851 }''', name : 'nl_langinfo and CODESET')
852 glib_conf.set('HAVE_LANGINFO_CODESET', 1)
853 glib_conf.set('HAVE_CODESET', 1)
856 # Check for nl_langinfo and LC_TIME parts that are needed in gdatetime.c
857 if cc.links('''#include <langinfo.h>
858 int main (int argc, char ** argv) {
860 str = nl_langinfo (PM_STR);
861 str = nl_langinfo (D_T_FMT);
862 str = nl_langinfo (D_FMT);
863 str = nl_langinfo (T_FMT);
864 str = nl_langinfo (T_FMT_AMPM);
865 str = nl_langinfo (MON_1);
866 str = nl_langinfo (ABMON_12);
867 str = nl_langinfo (DAY_1);
868 str = nl_langinfo (ABDAY_7);
870 }''', name : 'nl_langinfo (PM_STR)')
871 glib_conf.set('HAVE_LANGINFO_TIME', 1)
873 if cc.links('''#include <langinfo.h>
874 int main (int argc, char ** argv) {
876 str = nl_langinfo (_NL_CTYPE_OUTDIGIT0_MB);
877 str = nl_langinfo (_NL_CTYPE_OUTDIGIT1_MB);
878 str = nl_langinfo (_NL_CTYPE_OUTDIGIT2_MB);
879 str = nl_langinfo (_NL_CTYPE_OUTDIGIT3_MB);
880 str = nl_langinfo (_NL_CTYPE_OUTDIGIT4_MB);
881 str = nl_langinfo (_NL_CTYPE_OUTDIGIT5_MB);
882 str = nl_langinfo (_NL_CTYPE_OUTDIGIT6_MB);
883 str = nl_langinfo (_NL_CTYPE_OUTDIGIT7_MB);
884 str = nl_langinfo (_NL_CTYPE_OUTDIGIT8_MB);
885 str = nl_langinfo (_NL_CTYPE_OUTDIGIT9_MB);
887 }''', name : 'nl_langinfo (_NL_CTYPE_OUTDIGITn_MB)')
888 glib_conf.set('HAVE_LANGINFO_OUTDIGIT', 1)
891 # Check for nl_langinfo and alternative month names
892 if cc.links('''#ifndef _GNU_SOURCE
895 #include <langinfo.h>
896 int main (int argc, char ** argv) {
898 str = nl_langinfo (ALTMON_1);
899 str = nl_langinfo (ALTMON_2);
900 str = nl_langinfo (ALTMON_3);
901 str = nl_langinfo (ALTMON_4);
902 str = nl_langinfo (ALTMON_5);
903 str = nl_langinfo (ALTMON_6);
904 str = nl_langinfo (ALTMON_7);
905 str = nl_langinfo (ALTMON_8);
906 str = nl_langinfo (ALTMON_9);
907 str = nl_langinfo (ALTMON_10);
908 str = nl_langinfo (ALTMON_11);
909 str = nl_langinfo (ALTMON_12);
911 }''', name : 'nl_langinfo (ALTMON_n)')
912 glib_conf.set('HAVE_LANGINFO_ALTMON', 1)
915 # Check for nl_langinfo and abbreviated alternative month names
916 if cc.links('''#ifndef _GNU_SOURCE
919 #include <langinfo.h>
920 int main (int argc, char ** argv) {
922 str = nl_langinfo (_NL_ALTMON_1);
923 str = nl_langinfo (_NL_ALTMON_2);
924 str = nl_langinfo (_NL_ALTMON_3);
925 str = nl_langinfo (_NL_ALTMON_4);
926 str = nl_langinfo (_NL_ALTMON_5);
927 str = nl_langinfo (_NL_ALTMON_6);
928 str = nl_langinfo (_NL_ALTMON_7);
929 str = nl_langinfo (_NL_ALTMON_8);
930 str = nl_langinfo (_NL_ALTMON_9);
931 str = nl_langinfo (_NL_ALTMON_10);
932 str = nl_langinfo (_NL_ALTMON_11);
933 str = nl_langinfo (_NL_ALTMON_12);
935 }''', name : 'nl_langinfo (_NL_ALTMON_n)')
936 glib_conf.set('HAVE_LANGINFO_ABALTMON', 1)
939 # Check if C compiler supports the 'signed' keyword
940 if not cc.compiles('''signed char x;''', name : 'signed')
941 glib_conf.set('signed', '/* NOOP */')
944 # Check if the ptrdiff_t type exists
945 if cc.has_header_symbol('stddef.h', 'ptrdiff_t')
946 glib_conf.set('HAVE_PTRDIFF_T', 1)
949 # Check for sig_atomic_t type
950 if cc.links('''#include <signal.h>
951 #include <sys/types.h>
952 sig_atomic_t val = 42;
953 int main (int argc, char ** argv) {
954 return val == 42 ? 0 : 1;
955 }''', name : 'sig_atomic_t')
956 glib_conf.set('HAVE_SIG_ATOMIC_T', 1)
959 # Check if 'long long' works and what format can be used to print it
960 # jm_AC_TYPE_LONG_LONG
961 # Nothing uses HAVE_LONG_LONG_FORMAT and HAVE_INT64_AND_I64
962 if cc.compiles('''long long ll = 1LL;
964 int some_func (void) {
965 long long llmax = (long long) -1;
966 return ll << i | ll >> i | llmax / ll | llmax % ll;
967 }''', name : 'long long')
968 glib_conf.set('HAVE_LONG_LONG', 1)
969 have_long_long = true
971 have_long_long = false
974 # Test whether the compiler supports the 'long double' type.
975 if cc.compiles('''/* The Stardent Vistra knows sizeof(long double), but does not support it. */
976 long double foo = 0.0;
977 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
978 int array [2*(sizeof(long double) >= sizeof(double)) - 1];''',
979 name : 'long double')
980 glib_conf.set('HAVE_LONG_DOUBLE', 1)
983 # Test whether <stddef.h> has the 'wchar_t' type.
984 if cc.has_header_symbol('stddef.h', 'wchar_t')
985 glib_conf.set('HAVE_WCHAR_T', 1)
988 # Test whether <wchar.h> has the 'wint_t' type.
989 if cc.has_header_symbol('wchar.h', 'wint_t')
990 glib_conf.set('HAVE_WINT_T', 1)
993 found_uintmax_t = false
995 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
996 # doesn't clash with <sys/types.h>, and declares uintmax_t.
997 # jm_AC_HEADER_INTTYPES_H
998 if cc.compiles('''#include <sys/types.h>
999 #include <inttypes.h>
1000 void some_func (void) {
1001 uintmax_t i = (uintmax_t) -1;
1002 }''', name : 'uintmax_t in inttypes.h')
1003 glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
1004 found_uintmax_t = true
1007 # Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
1008 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1009 # jm_AC_HEADER_STDINT_H
1010 if cc.compiles('''#include <sys/types.h>
1012 void some_func (void) {
1013 uintmax_t i = (uintmax_t) -1;
1014 }''', name : 'uintmax_t in stdint.h')
1015 glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
1016 found_uintmax_t = true
1019 # Define intmax_t to 'long' or 'long long'
1020 # if it is not already defined in <stdint.h> or <inttypes.h>.
1021 # For simplicity, we assume that a header file defines 'intmax_t' if and
1022 # only if it defines 'uintmax_t'.
1024 glib_conf.set('HAVE_INTMAX_T', 1)
1026 glib_conf.set('intmax_t', 'long long')
1028 glib_conf.set('intmax_t', 'long')
1031 char_size = cc.sizeof('char')
1032 short_size = cc.sizeof('short')
1033 int_size = cc.sizeof('int')
1034 voidp_size = cc.sizeof('void*')
1035 long_size = cc.sizeof('long')
1037 long_long_size = cc.sizeof('long long')
1041 sizet_size = cc.sizeof('size_t')
1042 if cc.get_id() == 'msvc'
1043 ssizet_size = cc.sizeof('SSIZE_T', prefix : '#include <BaseTsd.h>')
1045 ssizet_size = cc.sizeof('ssize_t')
1049 char_align = cc.alignment('char')
1050 short_align = cc.alignment('short')
1051 int_align = cc.alignment('int')
1052 voidp_align = cc.alignment('void*')
1053 long_align = cc.alignment('long')
1054 long_long_align = cc.alignment('long long')
1055 # NOTE: We don't check for size of __int64 because long long is guaranteed to
1056 # be 64-bit in C99, and it is available on all supported compilers
1057 sizet_align = cc.alignment('size_t')
1059 glib_conf.set('ALIGNOF_UNSIGNED_LONG', long_align)
1061 glib_conf.set('SIZEOF_CHAR', char_size)
1062 glib_conf.set('SIZEOF_INT', int_size)
1063 glib_conf.set('SIZEOF_SHORT', short_size)
1064 glib_conf.set('SIZEOF_LONG', long_size)
1065 glib_conf.set('SIZEOF_LONG_LONG', long_long_size)
1066 glib_conf.set('SIZEOF_SIZE_T', sizet_size)
1067 glib_conf.set('SIZEOF_SSIZE_T', ssizet_size)
1068 glib_conf.set('SIZEOF_VOID_P', voidp_size)
1081 error('Compiler provides no native 16-bit integer type')
1083 glibconfig_conf.set('gint16', gint16)
1084 glibconfig_conf.set_quoted('gint16_modifier', gint16_modifier)
1085 glibconfig_conf.set_quoted('gint16_format', gint16_format)
1086 glibconfig_conf.set_quoted('guint16_format', guint16_format)
1093 guint32_align = short_align
1099 guint32_align = int_align
1105 guint32_align = long_align
1107 error('Compiler provides no native 32-bit integer type')
1109 glibconfig_conf.set('gint32', gint32)
1110 glibconfig_conf.set_quoted('gint32_modifier', gint32_modifier)
1111 glibconfig_conf.set_quoted('gint32_format', gint32_format)
1112 glibconfig_conf.set_quoted('guint32_format', guint32_format)
1113 glib_conf.set('ALIGNOF_GUINT32', guint32_align)
1121 gint64_constant='(val)'
1122 guint64_constant='(val)'
1123 guint64_align = int_align
1130 gint64_constant='(val##L)'
1131 guint64_constant='(val##UL)'
1132 guint64_align = long_align
1133 elif long_long_size == 8
1134 gint64 = 'long long'
1135 glib_extension='G_GNUC_EXTENSION '
1136 gint64_modifier=int64_m
1137 gint64_format=int64_m + 'i'
1138 guint64_format=int64_m + 'u'
1139 gint64_constant='(G_GNUC_EXTENSION (val##LL))'
1140 guint64_constant='(G_GNUC_EXTENSION (val##ULL))'
1141 guint64_align = long_long_align
1143 error('Compiler provides no native 64-bit integer type')
1145 glibconfig_conf.set('glib_extension', glib_extension)
1146 glibconfig_conf.set('gint64', gint64)
1147 glibconfig_conf.set_quoted('gint64_modifier', gint64_modifier)
1148 glibconfig_conf.set_quoted('gint64_format', gint64_format)
1149 glibconfig_conf.set_quoted('guint64_format', guint64_format)
1150 glibconfig_conf.set('gint64_constant', gint64_constant)
1151 glibconfig_conf.set('guint64_constant', guint64_constant)
1152 glib_conf.set('ALIGNOF_GUINT64', guint64_align)
1154 if host_system == 'windows'
1155 glibconfig_conf.set('g_pid_type', 'void*')
1156 glibconfig_conf.set_quoted('g_pid_format', 'p')
1157 if host_machine.cpu_family() == 'x86_64'
1158 glibconfig_conf.set_quoted('g_pollfd_format', '%#' + int64_m + 'x')
1160 glibconfig_conf.set_quoted('g_pollfd_format', '%#x')
1162 glibconfig_conf.set('g_dir_separator', '\\\\')
1163 glibconfig_conf.set('g_searchpath_separator', ';')
1165 glibconfig_conf.set('g_pid_type', 'int')
1166 glibconfig_conf.set_quoted('g_pid_format', 'i')
1167 glibconfig_conf.set_quoted('g_pollfd_format', '%d')
1168 glibconfig_conf.set('g_dir_separator', '/')
1169 glibconfig_conf.set('g_searchpath_separator', ':')
1172 if sizet_size == short_size
1173 glibconfig_conf.set('glib_size_type_define', 'short')
1174 glibconfig_conf.set_quoted('gsize_modifier', 'h')
1175 glibconfig_conf.set_quoted('gssize_modifier', 'h')
1176 glibconfig_conf.set_quoted('gsize_format', 'hu')
1177 glibconfig_conf.set_quoted('gssize_format', 'hi')
1178 glibconfig_conf.set('glib_msize_type', 'SHRT')
1179 elif sizet_size == int_size
1180 glibconfig_conf.set('glib_size_type_define', 'int')
1181 glibconfig_conf.set_quoted('gsize_modifier', '')
1182 glibconfig_conf.set_quoted('gssize_modifier', '')
1183 glibconfig_conf.set_quoted('gsize_format', 'u')
1184 glibconfig_conf.set_quoted('gssize_format', 'i')
1185 glibconfig_conf.set('glib_msize_type', 'INT')
1186 elif sizet_size == long_size
1187 glibconfig_conf.set('glib_size_type_define', 'long')
1188 glibconfig_conf.set_quoted('gsize_modifier', 'l')
1189 glibconfig_conf.set_quoted('gssize_modifier', 'l')
1190 glibconfig_conf.set_quoted('gsize_format', 'lu')
1191 glibconfig_conf.set_quoted('gssize_format', 'li')
1192 glibconfig_conf.set('glib_msize_type', 'LONG')
1193 elif sizet_size == long_long_size
1194 glibconfig_conf.set('glib_size_type_define', 'long long')
1195 glibconfig_conf.set_quoted('gsize_modifier', int64_m)
1196 glibconfig_conf.set_quoted('gssize_modifier', int64_m)
1197 glibconfig_conf.set_quoted('gsize_format', int64_m + 'u')
1198 glibconfig_conf.set_quoted('gssize_format', int64_m + 'i')
1199 glibconfig_conf.set('glib_msize_type', 'INT64')
1201 error('Could not determine size of size_t.')
1204 if voidp_size == int_size
1205 glibconfig_conf.set('glib_intptr_type_define', 'int')
1206 glibconfig_conf.set_quoted('gintptr_modifier', '')
1207 glibconfig_conf.set_quoted('gintptr_format', 'i')
1208 glibconfig_conf.set_quoted('guintptr_format', 'u')
1209 glibconfig_conf.set('glib_gpi_cast', '(gint)')
1210 glibconfig_conf.set('glib_gpui_cast', '(guint)')
1211 elif voidp_size == long_size
1212 glibconfig_conf.set('glib_intptr_type_define', 'long')
1213 glibconfig_conf.set_quoted('gintptr_modifier', 'l')
1214 glibconfig_conf.set_quoted('gintptr_format', 'li')
1215 glibconfig_conf.set_quoted('guintptr_format', 'lu')
1216 glibconfig_conf.set('glib_gpi_cast', '(glong)')
1217 glibconfig_conf.set('glib_gpui_cast', '(gulong)')
1218 elif voidp_size == long_long_size
1219 glibconfig_conf.set('glib_intptr_type_define', 'long long')
1220 glibconfig_conf.set_quoted('gintptr_modifier', int64_m)
1221 glibconfig_conf.set_quoted('gintptr_format', int64_m + 'i')
1222 glibconfig_conf.set_quoted('guintptr_format', int64_m + 'u')
1223 glibconfig_conf.set('glib_gpi_cast', '(gint64)')
1224 glibconfig_conf.set('glib_gpui_cast', '(guint64)')
1226 error('Could not determine size of void *')
1229 if long_size != 8 and long_long_size != 8 and int_size != 8
1230 error('GLib requires a 64-bit type. You might want to consider using the GNU C compiler.')
1233 glibconfig_conf.set('gintbits', int_size * 8)
1234 glibconfig_conf.set('glongbits', long_size * 8)
1235 glibconfig_conf.set('gsizebits', sizet_size * 8)
1236 glibconfig_conf.set('gssizebits', ssizet_size * 8)
1238 # FIXME: maybe meson should tell us the libsuffix?
1239 if host_system == 'windows'
1240 g_module_suffix = 'dll'
1241 elif host_system == 'darwin'
1242 g_module_suffix = 'dylib'
1244 g_module_suffix = 'so'
1246 glibconfig_conf.set('g_module_suffix', g_module_suffix)
1248 glibconfig_conf.set('GLIB_MAJOR_VERSION', major_version)
1249 glibconfig_conf.set('GLIB_MINOR_VERSION', minor_version)
1250 glibconfig_conf.set('GLIB_MICRO_VERSION', micro_version)
1251 glibconfig_conf.set('GLIB_VERSION', glib_version)
1253 glibconfig_conf.set('glib_void_p', voidp_size)
1254 glibconfig_conf.set('glib_long', long_size)
1255 glibconfig_conf.set('glib_size_t', sizet_size)
1256 glibconfig_conf.set('glib_ssize_t', ssizet_size)
1257 if host_machine.endian() == 'big'
1258 glibconfig_conf.set('g_byte_order', 'G_BIG_ENDIAN')
1259 glibconfig_conf.set('g_bs_native', 'BE')
1260 glibconfig_conf.set('g_bs_alien', 'LE')
1262 glibconfig_conf.set('g_byte_order', 'G_LITTLE_ENDIAN')
1263 glibconfig_conf.set('g_bs_native', 'LE')
1264 glibconfig_conf.set('g_bs_alien', 'BE')
1267 # === va_copy checks ===
1268 # we currently check for all three va_copy possibilities, so we get
1269 # all results in config.log for bug reports.
1272 foreach try_func : [ '__va_copy', 'va_copy' ]
1273 if cc.compiles('''#include <stdarg.h>
1276 # include "msvc_recommended_pragmas.h"
1278 void f (int i, ...) {
1279 va_list args1, args2;
1280 va_start (args1, i);
1282 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1284 va_end (args1); va_end (args2);
1289 }'''.format(try_func),
1290 name : try_func + ' check')
1291 va_copy_func = try_func
1294 if va_copy_func != ''
1295 glib_conf.set('G_VA_COPY', va_copy_func)
1296 glib_vacopy = '#define G_VA_COPY ' + va_copy_func
1298 glib_vacopy = '/* #undef G_VA_COPY */'
1301 va_list_val_copy_prog = '''
1304 void f (int i, ...) {
1305 va_list args1, args2;
1306 va_start (args1, i);
1308 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1310 va_end (args1); va_end (args2);
1318 rres = cc.run(va_list_val_copy_prog, name : 'va_lists can be copied as values')
1319 glib_va_val_copy = rres.returncode() == 0
1321 glib_va_val_copy = meson.get_cross_property('va_val_copy', true)
1323 if not glib_va_val_copy
1324 glib_vacopy = glib_vacopy + '\n#define G_VA_COPY_AS_ARRAY 1'
1325 glib_conf.set('G_VA_COPY_AS_ARRAY', 1)
1327 glibconfig_conf.set('glib_vacopy', glib_vacopy)
1329 # check for flavours of varargs macros
1330 g_have_iso_c_varargs = cc.compiles('''
1331 void some_func (void) {
1332 int a(int p1, int p2, int p3);
1333 #define call_a(...) a(1,__VA_ARGS__)
1335 }''', name : 'ISO C99 varargs macros in C')
1337 if g_have_iso_c_varargs
1338 glibconfig_conf.set('g_have_iso_c_varargs', '''
1340 # define G_HAVE_ISO_VARARGS 1
1344 g_have_iso_cxx_varargs = cxx.compiles('''
1345 void some_func (void) {
1346 int a(int p1, int p2, int p3);
1347 #define call_a(...) a(1,__VA_ARGS__)
1349 }''', name : 'ISO C99 varargs macros in C++')
1351 if g_have_iso_cxx_varargs
1352 glibconfig_conf.set('g_have_iso_cxx_varargs', '''
1354 # define G_HAVE_ISO_VARARGS 1
1358 g_have_gnuc_varargs = cc.compiles('''
1359 void some_func (void) {
1360 int a(int p1, int p2, int p3);
1361 #define call_a(params...) a(1,params)
1363 }''', name : 'GNUC varargs macros')
1365 if cc.has_header('alloca.h')
1366 glibconfig_conf.set('GLIB_HAVE_ALLOCA_H', true)
1368 has_syspoll = cc.has_header('sys/poll.h')
1369 has_systypes = cc.has_header('sys/types.h')
1371 glibconfig_conf.set('GLIB_HAVE_SYS_POLL_H', true)
1373 has_winsock2 = cc.has_header('winsock2.h')
1375 if has_syspoll and has_systypes
1377 #include<sys/poll.h>
1378 #include<sys/types.h>'''
1381 #define _WIN32_WINNT 0x0600
1382 #include <winsock2.h>'''
1385 error('FIX POLL* defines')
1389 [ 'POLLIN', 'g_pollin', 1 ],
1390 [ 'POLLOUT', 'g_pollout', 4 ],
1391 [ 'POLLPRI', 'g_pollpri', 2 ],
1392 [ 'POLLERR', 'g_pollerr', 8 ],
1393 [ 'POLLHUP', 'g_pollhup', 16 ],
1394 [ 'POLLNVAL', 'g_pollnval', 32 ],
1397 if has_syspoll and has_systypes
1398 foreach d : poll_defines
1399 val = cc.compute_int(d[0], prefix: poll_includes)
1400 glibconfig_conf.set(d[1], val)
1403 # Due to a missed bug in configure.ac the poll test
1404 # never succeeded on Windows and used some pre-defined
1405 # values as a fallback. Keep using them to maintain
1406 # ABI compatibility with autotools builds of glibs
1407 # and with *any* glib-using code compiled against them,
1408 # since these values end up in a public header glibconfig.h.
1409 foreach d : poll_defines
1410 glibconfig_conf.set(d[1], d[2])
1414 # Internet address families
1415 # FIXME: what about Cygwin (G_WITH_CYGWIN)
1416 if host_system == 'windows'
1418 #include <winsock2.h>'''
1421 #include <sys/types.h>
1422 #include <sys/socket.h>'''
1426 [ 'AF_UNIX', 'g_af_unix' ],
1427 [ 'AF_INET', 'g_af_inet' ],
1428 [ 'AF_INET6', 'g_af_inet6' ],
1429 [ 'MSG_OOB', 'g_msg_oob' ],
1430 [ 'MSG_PEEK', 'g_msg_peek' ],
1431 [ 'MSG_DONTROUTE', 'g_msg_dontroute' ],
1433 foreach d : inet_defines
1434 val = cc.compute_int(d[0], prefix: inet_includes)
1435 glibconfig_conf.set(d[1], val)
1438 glibconfig_conf.set('GLIB_USING_SYSTEM_PRINTF', true) # FIXME!
1440 # We need a more robust approach here...
1441 host_cpu_family = host_machine.cpu_family()
1442 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')
1443 glib_memory_barrier_needed = false
1444 elif host_cpu_family.startswith('sparc') or host_cpu_family.startswith('alpha') or host_cpu_family.startswith('powerpc') or host_cpu_family == 'ia64'
1445 glib_memory_barrier_needed = true
1447 warning('Unknown host cpu: ' + host_cpu_family)
1448 glib_memory_barrier_needed = true
1450 glibconfig_conf.set('G_ATOMIC_OP_MEMORY_BARRIER_NEEDED', glib_memory_barrier_needed)
1452 # We need to decide at configure time if GLib will use real atomic
1453 # operations ("lock free") or emulated ones with a mutex. This is
1454 # because we must put this information in glibconfig.h so we know if
1455 # it is safe or not to inline using compiler intrinsics directly from
1458 # We also publish the information via G_ATOMIC_LOCK_FREE in case the
1459 # user is interested in knowing if they can use the atomic ops across
1462 # We can currently support the atomic ops natively when building GLib
1463 # with recent versions of GCC or MSVC.
1465 # Note that the atomic ops are only available with GCC on x86 when
1466 # using -march=i486 or higher. If we detect that the atomic ops are
1467 # not available but would be available given the right flags, we want
1468 # to abort and advise the user to fix their CFLAGS. It's better to do
1469 # that then to silently fall back on emulated atomic ops just because
1470 # the user had the wrong build environment.
1471 atomictest = '''int main() {
1472 volatile int atomic = 2;
1473 __sync_bool_compare_and_swap (&atomic, 2, 3);
1479 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1480 #error "compiler has atomic ops, but doesn't define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"
1484 # We know that we can always use real ("lock free") atomic operations with MSVC
1485 if cc.get_id() == 'msvc' or cc.links(atomictest, name : 'atomic ops')
1486 have_atomic_lock_free = true
1487 if host_system == 'android' and not cc.compiles(atomicdefine, name : 'atomic ops define')
1488 # When building for armv5 on Android, gcc 4.9 provides
1489 # __sync_bool_compare_and_swap but doesn't define
1490 # __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1491 glib_conf.set('__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4', true)
1494 have_atomic_lock_free = false
1495 if host_machine.cpu_family() == 'x86' and cc.links(atomictest, args : '-march=i486')
1496 error('GLib must be built with -march=i486 or later.')
1499 glibconfig_conf.set('G_ATOMIC_LOCK_FREE', have_atomic_lock_free)
1503 # Determination of thread implementation
1504 if host_system == 'windows' and not get_option('force_posix_threads')
1506 threads_implementation = 'win32'
1507 glibconfig_conf.set('g_threads_impl_def', 'WIN32')
1508 glib_conf.set('THREADS_WIN32', 1)
1510 # FIXME: probably needs more tweaking in meson for things like -D_REENTRANT etc.
1511 thread_dep = dependency('threads')
1512 threads_implementation = 'posix'
1513 pthread_prefix = '''
1515 # define _GNU_SOURCE
1517 #include <pthread.h>'''
1518 glibconfig_conf.set('g_threads_impl_def', 'POSIX')
1519 glib_conf.set('THREADS_POSIX', 1)
1520 if cc.has_header_symbol('pthread.h', 'pthread_attr_setstacksize')
1521 glib_conf.set('HAVE_PTHREAD_ATTR_SETSTACKSIZE', 1)
1523 if cc.has_header_symbol('pthread.h', 'pthread_condattr_setclock')
1524 glib_conf.set('HAVE_PTHREAD_CONDATTR_SETCLOCK', 1)
1526 if cc.has_header_symbol('pthread.h', 'pthread_cond_timedwait_relative_np')
1527 glib_conf.set('HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP', 1)
1529 if cc.has_header_symbol('pthread.h', 'pthread_getname_np', prefix : pthread_prefix)
1530 glib_conf.set('HAVE_PTHREAD_GETNAME_NP', 1)
1532 # Assume that pthread_setname_np is available in some form; same as configure
1533 if cc.links(pthread_prefix + '''
1535 pthread_setname_np("example");
1538 name : 'pthread_setname_np(const char*)',
1539 dependencies : thread_dep)
1541 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
1542 elif cc.links(pthread_prefix + '''
1544 pthread_setname_np(pthread_self(), "example");
1547 name : 'pthread_setname_np(pthread_t, const char*)',
1548 dependencies : thread_dep)
1549 # Linux, Solaris, etc.
1550 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
1554 # FIXME: we should make it print the result and always return 0, so that
1555 # the output in meson shows up as green
1556 stack_grows_check_prog = '''
1557 volatile int *a = 0, *b = 0;
1569 return b > a ? 0 : 1;
1573 rres = cc.run(stack_grows_check_prog, name : 'stack grows check')
1574 growing_stack = rres.returncode() == 0
1576 growing_stack = meson.get_cross_property('growing_stack', false)
1579 glibconfig_conf.set('G_HAVE_GROWING_STACK', growing_stack)
1583 # USE_LIBICONV_GNU: Using GNU libiconv
1584 # USE_LIBICONV_NATIVE: Using a native impl of iconv in a separate library
1586 # We should never use the MinGW C library's iconv. On Windows we use the
1587 # GNU implementation that ships with MinGW.
1589 # On Windows, just always use the built-in implementation
1590 if host_system == 'windows'
1592 glib_conf.set('USE_LIBICONV_NATIVE', true)
1595 iconv_opt = get_option('iconv')
1596 if iconv_opt == 'libc'
1597 if cc.has_function('iconv_open')
1601 elif iconv_opt == 'gnu'
1602 if cc.has_header_symbol('iconv.h', 'libiconv_open')
1603 glib_conf.set('USE_LIBICONV_GNU', true)
1604 libiconv = [cc.find_library('iconv')]
1607 elif iconv_opt == 'native'
1608 if cc.has_header_symbol('iconv.h', 'iconv_open')
1609 glib_conf.set('USE_LIBICONV_NATIVE', true)
1610 libiconv = [cc.find_library('iconv')]
1616 error('iconv implementation "@0@" not found'.format(iconv_opt))
1621 if get_option('internal_pcre')
1623 use_system_pcre = false
1625 pcre = dependency('libpcre', required : false) # Should check for Unicode support, too. FIXME
1627 if cc.get_id() == 'msvc'
1628 # MSVC: Search for the PCRE library by the configuration, which corresponds
1629 # to the output of CMake builds of PCRE. Note that debugoptimized
1630 # is really a Release build with .PDB files.
1631 if buildtype == 'debug'
1632 pcre = cc.find_library('pcred', required : false)
1634 pcre = cc.find_library('pcre', required : false)
1638 use_system_pcre = pcre.found()
1640 glib_conf.set('USE_SYSTEM_PCRE', use_system_pcre)
1642 use_pcre_static_flag = false
1644 if host_system == 'windows'
1645 if not use_system_pcre
1646 use_pcre_static_flag = true
1648 pcre_static = cc.links('''#define PCRE_STATIC
1656 name : 'Windows system PCRE is a static build')
1658 use_pcre_static_flag = true
1663 libm = cc.find_library('m', required : false)
1664 libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])
1665 zlib_libname = '-lz'
1666 if cc.get_id() != 'msvc'
1667 libz_dep = dependency('zlib', fallback : ['zlib', 'zlib_dep'])
1669 # MSVC: Don't use the bundled ZLib sources until we are sure that we can't
1670 # find the ZLib .lib
1671 libz_dep = dependency('zlib', required : false)
1673 # MSVC: Search for the ZLib .lib, which corresponds to the results of
1674 # of using ZLib's win32/makefile.msc.
1675 if not libz_dep.found()
1676 libz_dep = cc.find_library('zlib1', required : false)
1678 zlib_libname = '-lzlib1'
1680 libz_dep = cc.find_library('zlib', required : false)
1682 zlib_libname = '-lzlib'
1684 libz_dep = subproject('zlib').get_variable('zlib_dep')
1690 # Only used on non-glibc targets
1691 libintl = cc.find_library('intl', required : false)
1692 if host_system == 'windows' and not libintl.found()
1693 # Used only when the gettext library is not available (MSVC, not MinGW)
1694 libintl = subproject('proxy-libintl').get_variable('intl_dep')
1695 glib_conf.set('HAVE_DCGETTEXT', 1)
1697 glib_conf.set('HAVE_DCGETTEXT', cc.has_header_symbol('libintl.h', 'dcgettext'))
1699 # We require gettext to always be present
1700 glib_conf.set('HAVE_GETTEXT', 1)
1701 glib_conf.set_quoted('GLIB_LOCALE_DIR', join_paths(glib_datadir, 'locale'))
1702 # xgettext is optional (on Windows for instance)
1703 xgettext = find_program('xgettext', required : false)
1705 # libmount is only used by gio, but we need to fetch the libs to generate the
1706 # pkg-config file below
1708 if host_system == 'linux' and get_option('libmount')
1709 libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
1710 glib_conf.set('HAVE_LIBMOUNT', 1)
1713 if host_system == 'windows'
1714 winsock2 = cc.find_library('ws2_32')
1718 if host_system == 'linux' and get_option('selinux')
1719 selinux_dep = [dependency('libselinux')]
1720 glib_conf.set('HAVE_SELINUX', 1)
1724 if host_system != 'windows' and get_option('xattr')
1725 # either glibc or libattr can provide xattr support
1726 # for both of them, we check for getxattr being in
1727 # the library and a valid xattr header.
1730 if cc.has_function('getxattr') and cc.has_header('sys/xattr.h')
1731 glib_conf.set('HAVE_SYS_XATTR_H', 1)
1732 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_SYS_XATTR_H')
1733 #failure. try libattr
1734 elif cc.has_header_symbol('attr/xattr.h', 'getxattr')
1735 glib_conf.set('HAVE_ATTR_XATTR_H', 1)
1736 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_ATTR_XATTR_H')
1737 xattr_dep = [cc.find_library('xattr')]
1739 error('No getxattr implementation found in C library or libxattr')
1742 glib_conf.set('HAVE_XATTR', 1)
1743 if cc.compiles(glib_conf_prefix + '''
1745 #ifdef HAVE_SYS_TYPES_H
1746 #include <sys/types.h>
1748 #ifdef HAVE_SYS_XATTR_H
1749 #include <sys/xattr.h>
1750 #elif HAVE_ATTR_XATTR_H
1751 #include <attr/xattr.h>
1755 ssize_t len = getxattr("", "", NULL, 0, 0, XATTR_NOFOLLOW);
1758 name : 'XATTR_NOFOLLOW')
1759 glib_conf.set('HAVE_XATTR_NOFOLLOW', 1)
1763 python = import('python3').find_python()
1765 # Determine which user environment-dependent files that we want to install
1766 have_bash = find_program('bash', required : false).found() # For completion scripts
1767 have_m4 = find_program('m4', required : false).found() # For m4 macros
1768 have_sh = find_program('sh', required : false).found() # For glib-gettextize
1770 # FIXME: defines in config.h that are not actually used anywhere
1771 # (we add them for now to minimise the diff)
1772 glib_conf.set('HAVE_DLFCN_H', 1)
1773 glib_conf.set('__EXTENSIONS__', 1)
1774 glib_conf.set('STDC_HEADERS', 1)
1776 glib_conf.set('SIZEOF___INT64', 8)
1778 glib_conf.set('GIO_MODULE_DIR', glib_giomodulesdir)
1780 # Sadly Meson does not expose this value:
1781 # https://github.com/mesonbuild/meson/pull/3460
1782 if host_system == 'windows'
1783 # Autotools explicitly removed --Wl,--export-all-symbols from windows builds,
1784 # with no explanation. Do the same here for now but this could be revisited if
1786 export_dynamic_ldflags = []
1787 elif host_system == 'cygwin'
1788 export_dynamic_ldflags = ['-Wl,--export-all-symbols']
1789 elif host_system == 'darwin'
1790 export_dynamic_ldflags = []
1792 export_dynamic_ldflags = ['-Wl,--export-dynamic']
1797 if host_system == 'windows' and cc.get_id() != 'msvc'
1798 # Ensure MSVC-compatible struct packing convention is used when
1799 # compiling for Win32 with gcc. It is used for the whole project and exposed
1801 win32_cflags = ['-mms-bitfields']
1802 add_project_arguments(win32_cflags, language : 'c')
1804 # Win32 API libs, used only by libglib and exposed in glib-2.0.pc
1805 win32_ldflags = ['-lws2_32', '-lole32', '-lwinmm', '-lshlwapi']
1806 elif host_system == 'cygwin'
1807 win32_ldflags = ['-luser32', '-lkernel32']
1811 want_dtrace = get_option('dtrace')
1812 enable_dtrace = false
1814 # Since dtrace support is opt-in we just error out if it was requested but
1815 # is not available. We don't bother with autodetection yet.
1818 error('GLib dtrace support not yet compatible with macOS dtrace')
1820 dtrace = find_program('dtrace', required : true) # error out if not found
1821 if not cc.has_header('sys/sdt.h')
1822 error('dtrace support needs sys/sdt.h header')
1824 # FIXME: autotools build also passes -fPIC -DPIC but is it needed in this case?
1825 dtrace_obj_gen = generator(dtrace,
1826 output : '@BASENAME@.o',
1827 arguments : ['-G', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1828 # FIXME: $(SED) -e "s,define STAP_HAS_SEMAPHORES 1,undef STAP_HAS_SEMAPHORES,"
1829 # -e "s,define _SDT_HAS_SEMAPHORES 1,undef _SDT_HAS_SEMAPHORES,"
1830 dtrace_hdr_gen = generator(dtrace,
1831 output : '@BASENAME@.h',
1832 arguments : ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1833 glib_conf.set('HAVE_DTRACE', 1)
1834 enable_dtrace = true
1838 want_systemtap = get_option('systemtap')
1839 enable_systemtap = false
1841 if want_systemtap and enable_dtrace
1842 tapset_install_dir = get_option('tapset_install_dir')
1843 if tapset_install_dir == ''
1844 tapset_install_dir = join_paths(get_option('datadir'), 'systemtap/tapset', host_machine.cpu_family())
1846 stp_cdata = configuration_data()
1847 stp_cdata.set('ABS_GLIB_RUNTIME_LIBDIR', glib_libdir)
1848 stp_cdata.set('LT_CURRENT', minor_version * 100)
1849 stp_cdata.set('LT_REVISION', micro_version)
1850 enable_systemtap = true
1854 pkg = import('pkgconfig')
1855 windows = import('windows')
1866 # NOTE: We skip glib-zip.in because the filenames it assumes don't match ours
1868 # Install glib-gettextize executable, if a UNIX-style shell is found
1870 configure_file(input : 'glib-gettextize.in',
1872 install_dir : 'bin',
1873 output : 'glib-gettextize',
1874 configuration : glib_conf)
1878 # Install m4 macros that other projects use
1879 install_data('m4macros/glib-2.0.m4', 'm4macros/glib-gettext.m4', 'm4macros/gsettings.m4',
1880 install_dir : join_paths(get_option('datadir'), 'aclocal'))
1883 if host_system != 'windows'
1884 # Install Valgrind suppression file (except on Windows,
1885 # as Valgrind is currently not supported on Windows)
1886 install_data('glib.supp',
1887 install_dir : join_paths(get_option('datadir'), 'glib-2.0', 'valgrind'))
1890 configure_file(input : 'config.h.meson',
1891 output : 'config.h',
1892 configuration : glib_conf)
1894 if host_system == 'windows'
1895 install_headers([ 'msvc_recommended_pragmas.h' ], subdir : 'glib-2.0')
1898 if get_option('man')
1899 xsltproc = find_program('xsltproc', required : true)
1900 xsltproc_command = [
1903 '--stringparam', 'man.output.quietly', '1',
1904 '--stringparam', 'funcsynopsis.style', 'ansi',
1905 '--stringparam', 'man.th.extra1.suppress', '1',
1906 '--stringparam', 'man.authors.section.enabled', '0',
1907 '--stringparam', 'man.copyright.section.enabled', '0',
1909 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl',
1912 man1_dir = get_option('mandir') + '/man1'
1915 gnome = import('gnome')
1916 subdir('docs/reference/glib')
1917 subdir('docs/reference/gobject')
1918 subdir('docs/reference/gio')