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
213 'dirent.h', # MSC does not come with this by default
246 '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 '-Wmisleading-indentation',
335 '-Wstrict-prototypes',
337 '-Werror=declaration-after-statement',
339 '-Werror=format-security',
340 '-Werror=implicit-function-declaration',
342 '-Werror=missing-include-dirs',
343 '-Werror=missing-prototypes',
344 '-Werror=pointer-arith',
349 if get_option('bsymbolic_functions')
350 test_c_link_args += ['-Wl,-Bsymbolic-functions']
354 test_c_link_args = []
357 add_project_arguments(cc.get_supported_arguments(test_c_args), language: 'c')
359 # FIXME: We cannot build some of the GResource tests with -z nodelete, which
360 # means we cannot use that flag in add_project_link_arguments(), and must add
361 # it to the relevant targets manually. We do the same with -Bsymbolic-functions
362 # because that is what the autotools build did.
363 # See https://github.com/mesonbuild/meson/pull/3520 for a way to eventually
365 glib_link_flags = cc.get_supported_link_arguments(test_c_link_args)
367 # Windows Support (7+)
368 if host_system == 'windows'
369 glib_conf.set('_WIN32_WINNT', '0x0601')
430 if glib_conf.has('HAVE_SYS_STATVFS_H')
431 functions += ['statvfs']
433 have_func_statvfs = false
435 if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
436 functions += ['statfs']
438 have_func_statfs = false
441 if host_system == 'windows'
442 iphlpapi_dep = cc.find_library('iphlpapi')
443 iphlpapi_funcs = ['if_nametoindex', 'if_indextoname']
444 foreach ifunc : iphlpapi_funcs
445 iphl_prefix = '''#define _WIN32_WINNT @0@
446 #include <winsock2.h>
447 #include <iphlpapi.h>'''.format(glib_conf.get('_WIN32_WINNT'))
448 if cc.has_function(ifunc,
449 prefix : iphl_prefix,
450 dependencies : iphlpapi_dep)
451 idefine = 'HAVE_' + ifunc.underscorify().to_upper()
452 glib_conf.set(idefine, 1)
453 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(idefine)
454 set_variable('have_func_' + ifunc, true)
456 set_variable('have_func_' + ifunc, false)
460 functions += ['if_indextoname', 'if_nametoindex']
463 # AIX splice is something else
464 if host_system != 'aix'
465 functions += ['splice']
468 foreach f : functions
469 if cc.has_function(f)
470 define = 'HAVE_' + f.underscorify().to_upper()
471 glib_conf.set(define, 1)
472 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
473 set_variable('have_func_' + f, true)
475 set_variable('have_func_' + f, false)
479 # Check that stpcpy() is usable; must use header
480 if cc.has_function('stpcpy', prefix : '#include <string.h>')
481 glib_conf.set('HAVE_STPCPY', 1)
484 # Check that posix_memalign() is usable; must use header
485 if cc.has_function('posix_memalign', prefix : '#include <stdlib.h>')
486 glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
489 # Check whether strerror_r returns char *
490 if have_func_strerror_r
491 if cc.compiles('''#define _GNU_SOURCE
494 char error_string[256];
495 char *ptr = strerror_r (-2, error_string, 256);
496 char c = *strerror_r (-2, error_string, 256);
497 return c != 0 && ptr != (void*) 0L;
500 name : 'strerror_r() returns char *')
501 glib_conf.set('STRERROR_R_CHAR_P', 1,
502 description: 'Defined if strerror_r returns char *')
506 # Special-case these functions that have alternative names on Windows/MSVC
507 if cc.has_function('snprintf') or cc.has_header_symbol('stdio.h', 'snprintf')
508 glib_conf.set('HAVE_SNPRINTF', 1)
509 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF 1\n'
510 elif cc.has_function('_snprintf') or cc.has_header_symbol('stdio.h', '_snprintf')
511 hack_define = '1\n#define snprintf _snprintf'
512 glib_conf.set('HAVE_SNPRINTF', hack_define)
513 glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF ' + hack_define
516 if cc.has_function('strcasecmp')
517 glib_conf.set('HAVE_STRCASECMP', 1)
518 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP 1\n'
519 elif cc.has_function('_stricmp')
520 hack_define = '1\n#define strcasecmp _stricmp'
521 glib_conf.set('HAVE_STRCASECMP', hack_define)
522 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP ' + hack_define
525 if cc.has_function('strncasecmp')
526 glib_conf.set('HAVE_STRNCASECMP', 1)
527 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP 1\n'
528 elif cc.has_function('_strnicmp')
529 hack_define = '1\n#define strncasecmp _strnicmp'
530 glib_conf.set('HAVE_STRNCASECMP', hack_define)
531 glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP ' + hack_define
534 if cc.has_header_symbol('sys/sysmacros.h', 'major')
535 glib_conf.set('MAJOR_IN_SYSMACROS', 1)
536 elif cc.has_header_symbol('sys/mkdev.h', 'major')
537 glib_conf.set('MAJOR_IN_MKDEV', 1)
540 if cc.has_header_symbol('dlfcn.h', 'RTLD_LAZY')
541 glib_conf.set('HAVE_RTLD_LAZY', 1)
544 if cc.has_header_symbol('dlfcn.h', 'RTLD_NOW')
545 glib_conf.set('HAVE_RTLD_NOW', 1)
548 if cc.has_header_symbol('dlfcn.h', 'RTLD_GLOBAL')
549 glib_conf.set('HAVE_RTLD_GLOBAL', 1)
552 # Check whether to use statfs or statvfs
553 # Some systems have both statfs and statvfs, pick the most "native" for these
554 if have_func_statfs and have_func_statvfs
555 # on solaris and irix, statfs doesn't even have the f_bavail field
556 if not glib_conf.has('HAVE_STRUCT_STATFS_F_BAVAIL')
557 have_func_statfs = false
559 # at least on linux, statfs is the actual syscall
560 have_func_statvfs = false
564 glib_conf.set('USE_STATFS', 1)
565 stat_func_to_use = 'statfs'
566 elif have_func_statvfs
567 glib_conf.set('USE_STATVFS', 1)
568 stat_func_to_use = 'statvfs'
570 stat_func_to_use = 'neither'
572 message('Checking whether to use statfs or statvfs .. ' + stat_func_to_use)
574 if host_system == 'linux'
575 if cc.has_function('mkostemp',
576 prefix: '''#define _GNU_SOURCE
577 #include <stdlib.h>''')
578 glib_conf.set('HAVE_MKOSTEMP', 1)
583 glib_have_os_x_9_or_later = false
584 glib_have_carbon = false
585 glib_have_cocoa = false
586 if host_system == 'darwin'
587 add_languages('objc')
588 objcc = meson.get_compiler('objc')
590 osx_ldflags += ['-Wl,-framework,CoreFoundation']
592 # Mac OS X Carbon support
593 glib_have_carbon = objcc.compiles('''#include <Carbon/Carbon.h>
594 #include <CoreServices/CoreServices.h>''',
595 name : 'Mac OS X Carbon support')
598 glib_conf.set('HAVE_CARBON', true)
599 osx_ldflags += '-Wl,-framework,Carbon'
600 glib_have_os_x_9_or_later = objcc.compiles('''#include <AvailabilityMacros.h>
601 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
602 #error Compiling for minimum OS X version before 10.9
604 name : 'OS X 9 or later')
607 # Mac OS X Cocoa support
608 glib_have_cocoa = objcc.compiles('''#include <Cocoa/Cocoa.h>
609 #ifdef GNUSTEP_BASE_VERSION
610 #error "Detected GNUstep, not Cocoa"
612 name : 'Mac OS X Cocoa support')
615 glib_conf.set('HAVE_COCOA', true)
616 osx_ldflags += ['-Wl,-framework,Foundation', '-Wl,-framework,AppKit']
619 # FIXME: libgio mix C and objC source files and there is no way to reliably
620 # know which language flags it's going to use to link. Add to both languages
621 # for now. See https://github.com/mesonbuild/meson/issues/3585.
622 add_project_link_arguments(osx_ldflags, language : ['objc', 'c'])
626 if cc.links('''#include <linux/futex.h>
627 #include <sys/syscall.h>
629 int main (int argc, char ** argv) {
630 syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
632 }''', name : 'futex(2) system call')
633 glib_conf.set('HAVE_FUTEX', 1)
636 # Check for eventfd(2)
637 if cc.links('''#include <sys/eventfd.h>
639 int main (int argc, char ** argv) {
640 eventfd (0, EFD_CLOEXEC);
642 }''', name : 'eventfd(2) system call')
643 glib_conf.set('HAVE_EVENTFD', 1)
646 clock_gettime_test_code = '''
649 int main (int argc, char ** argv) {
650 return clock_gettime(CLOCK_REALTIME, &t);
653 if cc.links(clock_gettime_test_code, name : 'clock_gettime')
654 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
655 elif cc.links(clock_gettime_test_code, args : '-lrt', name : 'clock_gettime in librt')
656 glib_conf.set('HAVE_CLOCK_GETTIME', 1)
657 librt = cc.find_library('rt')
660 # if statfs() takes 2 arguments (Posix) or 4 (Solaris)
662 if cc.compiles(glib_conf_prefix + '''
664 #ifdef HAVE_SYS_PARAM_H
665 #include <sys/param.h>
667 #ifdef HAVE_SYS_VFS_H
670 #ifdef HAVE_SYS_MOUNT_H
671 #include <sys/mount.h>
673 #ifdef HAVE_SYS_STATFS_H
674 #include <sys/statfs.h>
676 void some_func (void) {
679 }''', name : 'number of arguments to statfs() (n=2)')
680 glib_conf.set('STATFS_ARGS', 2)
681 elif cc.compiles(glib_conf_prefix + '''
683 #ifdef HAVE_SYS_PARAM_H
684 #include <sys/param.h>
686 #ifdef HAVE_SYS_VFS_H
689 #ifdef HAVE_SYS_MOUNT_H
690 #include <sys/mount.h>
692 #ifdef HAVE_SYS_STATFS_H
693 #include <sys/statfs.h>
695 void some_func (void) {
697 statfs("/", &st, sizeof (st), 0);
698 }''', name : 'number of arguments to statfs() (n=4)')
699 glib_conf.set('STATFS_ARGS', 4)
701 error('Unable to determine number of arguments to statfs()')
705 # open takes O_DIRECTORY as an option
707 if cc.compiles('''#include <fcntl.h>
708 #include <sys/types.h>
709 #include <sys/stat.h>],
710 void some_func (void) {
711 open(0, O_DIRECTORY, 0);
712 }''', name : 'open() option O_DIRECTORY')
713 glib_conf.set('HAVE_OPEN_O_DIRECTORY', 1)
716 # Check whether there is a vsnprintf() function with C99 semantics installed.
717 # AC_FUNC_VSNPRINTF_C99
718 # Check whether there is a snprintf() function with C99 semantics installed.
719 # AC_FUNC_SNPRINTF_C99
721 have_good_vsnprintf = false
722 have_good_snprintf = false
724 if host_system == 'windows' and cc.get_id() == 'msvc'
725 # Unfortunately the Visual Studio 2015+ implementations of C99-style
726 # snprintf and vsnprintf don't seem to be quite good enough.
727 # (Sorry, I don't know exactly what is the problem,
728 # but it is related to floating point formatting and decimal point vs. comma.)
729 # The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
730 # rigorous enough to notice, though.
731 glib_conf.set('HAVE_C99_SNPRINTF', false)
732 glib_conf.set('HAVE_C99_VSNPRINTF', false)
734 vsnprintf_c99_test_code = '''
746 r = vsnprintf(buffer, 5, s, args);
752 /* AIX 5.1 and Solaris seems to have a half-baked vsnprintf()
753 implementation. The above will return 7 but if you replace
754 the size of the buffer with 0, it borks! */
756 r = vsnprintf(buffer, 0, s, args);
773 rres = cc.run(vsnprintf_c99_test_code, name : 'C99 vsnprintf')
774 if rres.compiled() and rres.returncode() == 0
775 glib_conf.set('HAVE_C99_VSNPRINTF', 1)
776 have_good_vsnprintf = true
779 have_good_vsnprintf = meson.get_cross_property('have_c99_vsnprintf', false)
780 glib_conf.set('HAVE_C99_VSNPRINTF', have_good_vsnprintf)
783 snprintf_c99_test_code = '''
794 r = snprintf(buffer, 5, "1234567");
799 r = snprintf(buffer, 0, "1234567");
804 r = snprintf(NULL, 0, "1234567");
820 rres = cc.run(snprintf_c99_test_code, name : 'C99 snprintf')
821 if rres.compiled() and rres.returncode() == 0
822 glib_conf.set('HAVE_C99_SNPRINTF', 1)
823 have_good_snprintf = true
826 have_good_snprintf = meson.get_cross_property('have_c99_snprintf', false)
827 glib_conf.set('HAVE_C99_SNPRINTF', have_good_snprintf)
831 if host_system == 'windows'
832 glib_conf.set_quoted('EXEEXT', '.exe')
834 glib_conf.set('EXEEXT', '')
837 if have_good_vsnprintf and have_good_snprintf
838 # Our printf is 'good' only if vsnpintf()/snprintf() supports C99 well enough
839 glib_conf.set('HAVE_GOOD_PRINTF', 1) # FIXME: Check for HAVE_UNIX98_PRINTF?
841 glib_conf.set('HAVE_VASPRINTF', 1)
844 # Check whether the printf() family supports Unix98 %n$ positional parameters
845 # AC_FUNC_PRINTF_UNIX98
846 # Nothing uses HAVE_UNIX98_PRINTF
849 # Check for nl_langinfo and CODESET
850 # FIXME: Check for HAVE_BIND_TEXTDOMAIN_CODESET
851 if cc.links('''#include <langinfo.h>
852 int main (int argc, char ** argv) {
853 char *codeset = nl_langinfo (CODESET);
855 }''', name : 'nl_langinfo and CODESET')
856 glib_conf.set('HAVE_LANGINFO_CODESET', 1)
857 glib_conf.set('HAVE_CODESET', 1)
860 # Check for nl_langinfo and LC_TIME parts that are needed in gdatetime.c
861 if cc.links('''#include <langinfo.h>
862 int main (int argc, char ** argv) {
864 str = nl_langinfo (PM_STR);
865 str = nl_langinfo (D_T_FMT);
866 str = nl_langinfo (D_FMT);
867 str = nl_langinfo (T_FMT);
868 str = nl_langinfo (T_FMT_AMPM);
869 str = nl_langinfo (MON_1);
870 str = nl_langinfo (ABMON_12);
871 str = nl_langinfo (DAY_1);
872 str = nl_langinfo (ABDAY_7);
874 }''', name : 'nl_langinfo (PM_STR)')
875 glib_conf.set('HAVE_LANGINFO_TIME', 1)
877 if cc.links('''#include <langinfo.h>
878 int main (int argc, char ** argv) {
880 str = nl_langinfo (_NL_CTYPE_OUTDIGIT0_MB);
881 str = nl_langinfo (_NL_CTYPE_OUTDIGIT1_MB);
882 str = nl_langinfo (_NL_CTYPE_OUTDIGIT2_MB);
883 str = nl_langinfo (_NL_CTYPE_OUTDIGIT3_MB);
884 str = nl_langinfo (_NL_CTYPE_OUTDIGIT4_MB);
885 str = nl_langinfo (_NL_CTYPE_OUTDIGIT5_MB);
886 str = nl_langinfo (_NL_CTYPE_OUTDIGIT6_MB);
887 str = nl_langinfo (_NL_CTYPE_OUTDIGIT7_MB);
888 str = nl_langinfo (_NL_CTYPE_OUTDIGIT8_MB);
889 str = nl_langinfo (_NL_CTYPE_OUTDIGIT9_MB);
891 }''', name : 'nl_langinfo (_NL_CTYPE_OUTDIGITn_MB)')
892 glib_conf.set('HAVE_LANGINFO_OUTDIGIT', 1)
895 # Check for nl_langinfo and alternative month names
896 if cc.links('''#ifndef _GNU_SOURCE
899 #include <langinfo.h>
900 int main (int argc, char ** argv) {
902 str = nl_langinfo (ALTMON_1);
903 str = nl_langinfo (ALTMON_2);
904 str = nl_langinfo (ALTMON_3);
905 str = nl_langinfo (ALTMON_4);
906 str = nl_langinfo (ALTMON_5);
907 str = nl_langinfo (ALTMON_6);
908 str = nl_langinfo (ALTMON_7);
909 str = nl_langinfo (ALTMON_8);
910 str = nl_langinfo (ALTMON_9);
911 str = nl_langinfo (ALTMON_10);
912 str = nl_langinfo (ALTMON_11);
913 str = nl_langinfo (ALTMON_12);
915 }''', name : 'nl_langinfo (ALTMON_n)')
916 glib_conf.set('HAVE_LANGINFO_ALTMON', 1)
919 # Check for nl_langinfo and abbreviated alternative month names
920 if cc.links('''#ifndef _GNU_SOURCE
923 #include <langinfo.h>
924 int main (int argc, char ** argv) {
926 str = nl_langinfo (_NL_ALTMON_1);
927 str = nl_langinfo (_NL_ALTMON_2);
928 str = nl_langinfo (_NL_ALTMON_3);
929 str = nl_langinfo (_NL_ALTMON_4);
930 str = nl_langinfo (_NL_ALTMON_5);
931 str = nl_langinfo (_NL_ALTMON_6);
932 str = nl_langinfo (_NL_ALTMON_7);
933 str = nl_langinfo (_NL_ALTMON_8);
934 str = nl_langinfo (_NL_ALTMON_9);
935 str = nl_langinfo (_NL_ALTMON_10);
936 str = nl_langinfo (_NL_ALTMON_11);
937 str = nl_langinfo (_NL_ALTMON_12);
939 }''', name : 'nl_langinfo (_NL_ALTMON_n)')
940 glib_conf.set('HAVE_LANGINFO_ABALTMON', 1)
943 # Check if C compiler supports the 'signed' keyword
944 if not cc.compiles('''signed char x;''', name : 'signed')
945 glib_conf.set('signed', '/* NOOP */')
948 # Check if the ptrdiff_t type exists
949 if cc.has_header_symbol('stddef.h', 'ptrdiff_t')
950 glib_conf.set('HAVE_PTRDIFF_T', 1)
953 # Check for sig_atomic_t type
954 if cc.links('''#include <signal.h>
955 #include <sys/types.h>
956 sig_atomic_t val = 42;
957 int main (int argc, char ** argv) {
958 return val == 42 ? 0 : 1;
959 }''', name : 'sig_atomic_t')
960 glib_conf.set('HAVE_SIG_ATOMIC_T', 1)
963 # Check if 'long long' works and what format can be used to print it
964 # jm_AC_TYPE_LONG_LONG
965 # Nothing uses HAVE_LONG_LONG_FORMAT and HAVE_INT64_AND_I64
966 if cc.compiles('''long long ll = 1LL;
968 int some_func (void) {
969 long long llmax = (long long) -1;
970 return ll << i | ll >> i | llmax / ll | llmax % ll;
971 }''', name : 'long long')
972 glib_conf.set('HAVE_LONG_LONG', 1)
973 have_long_long = true
975 have_long_long = false
978 # Test whether the compiler supports the 'long double' type.
979 if cc.compiles('''/* The Stardent Vistra knows sizeof(long double), but does not support it. */
980 long double foo = 0.0;
981 /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
982 int array [2*(sizeof(long double) >= sizeof(double)) - 1];''',
983 name : 'long double')
984 glib_conf.set('HAVE_LONG_DOUBLE', 1)
987 # Test whether <stddef.h> has the 'wchar_t' type.
988 if cc.has_header_symbol('stddef.h', 'wchar_t')
989 glib_conf.set('HAVE_WCHAR_T', 1)
992 # Test whether <wchar.h> has the 'wint_t' type.
993 if cc.has_header_symbol('wchar.h', 'wint_t')
994 glib_conf.set('HAVE_WINT_T', 1)
997 found_uintmax_t = false
999 # Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
1000 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1001 # jm_AC_HEADER_INTTYPES_H
1002 if cc.compiles('''#include <sys/types.h>
1003 #include <inttypes.h>
1004 void some_func (void) {
1005 uintmax_t i = (uintmax_t) -1;
1006 }''', name : 'uintmax_t in inttypes.h')
1007 glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
1008 found_uintmax_t = true
1011 # Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
1012 # doesn't clash with <sys/types.h>, and declares uintmax_t.
1013 # jm_AC_HEADER_STDINT_H
1014 if cc.compiles('''#include <sys/types.h>
1016 void some_func (void) {
1017 uintmax_t i = (uintmax_t) -1;
1018 }''', name : 'uintmax_t in stdint.h')
1019 glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
1020 found_uintmax_t = true
1023 # Define intmax_t to 'long' or 'long long'
1024 # if it is not already defined in <stdint.h> or <inttypes.h>.
1025 # For simplicity, we assume that a header file defines 'intmax_t' if and
1026 # only if it defines 'uintmax_t'.
1028 glib_conf.set('HAVE_INTMAX_T', 1)
1030 glib_conf.set('intmax_t', 'long long')
1032 glib_conf.set('intmax_t', 'long')
1035 char_size = cc.sizeof('char')
1036 short_size = cc.sizeof('short')
1037 int_size = cc.sizeof('int')
1038 voidp_size = cc.sizeof('void*')
1039 long_size = cc.sizeof('long')
1041 long_long_size = cc.sizeof('long long')
1045 sizet_size = cc.sizeof('size_t')
1046 if cc.get_id() == 'msvc'
1047 ssizet_size = cc.sizeof('SSIZE_T', prefix : '#include <BaseTsd.h>')
1049 ssizet_size = cc.sizeof('ssize_t')
1053 char_align = cc.alignment('char')
1054 short_align = cc.alignment('short')
1055 int_align = cc.alignment('int')
1056 voidp_align = cc.alignment('void*')
1057 long_align = cc.alignment('long')
1058 long_long_align = cc.alignment('long long')
1059 # NOTE: We don't check for size of __int64 because long long is guaranteed to
1060 # be 64-bit in C99, and it is available on all supported compilers
1061 sizet_align = cc.alignment('size_t')
1063 glib_conf.set('ALIGNOF_UNSIGNED_LONG', long_align)
1065 glib_conf.set('SIZEOF_CHAR', char_size)
1066 glib_conf.set('SIZEOF_INT', int_size)
1067 glib_conf.set('SIZEOF_SHORT', short_size)
1068 glib_conf.set('SIZEOF_LONG', long_size)
1069 glib_conf.set('SIZEOF_LONG_LONG', long_long_size)
1070 glib_conf.set('SIZEOF_SIZE_T', sizet_size)
1071 glib_conf.set('SIZEOF_SSIZE_T', ssizet_size)
1072 glib_conf.set('SIZEOF_VOID_P', voidp_size)
1085 error('Compiler provides no native 16-bit integer type')
1087 glibconfig_conf.set('gint16', gint16)
1088 glibconfig_conf.set_quoted('gint16_modifier', gint16_modifier)
1089 glibconfig_conf.set_quoted('gint16_format', gint16_format)
1090 glibconfig_conf.set_quoted('guint16_format', guint16_format)
1097 guint32_align = short_align
1103 guint32_align = int_align
1109 guint32_align = long_align
1111 error('Compiler provides no native 32-bit integer type')
1113 glibconfig_conf.set('gint32', gint32)
1114 glibconfig_conf.set_quoted('gint32_modifier', gint32_modifier)
1115 glibconfig_conf.set_quoted('gint32_format', gint32_format)
1116 glibconfig_conf.set_quoted('guint32_format', guint32_format)
1117 glib_conf.set('ALIGNOF_GUINT32', guint32_align)
1125 gint64_constant='(val)'
1126 guint64_constant='(val)'
1127 guint64_align = int_align
1134 gint64_constant='(val##L)'
1135 guint64_constant='(val##UL)'
1136 guint64_align = long_align
1137 elif long_long_size == 8
1138 gint64 = 'long long'
1139 glib_extension='G_GNUC_EXTENSION '
1140 gint64_modifier=int64_m
1141 gint64_format=int64_m + 'i'
1142 guint64_format=int64_m + 'u'
1143 gint64_constant='(G_GNUC_EXTENSION (val##LL))'
1144 guint64_constant='(G_GNUC_EXTENSION (val##ULL))'
1145 guint64_align = long_long_align
1147 error('Compiler provides no native 64-bit integer type')
1149 glibconfig_conf.set('glib_extension', glib_extension)
1150 glibconfig_conf.set('gint64', gint64)
1151 glibconfig_conf.set_quoted('gint64_modifier', gint64_modifier)
1152 glibconfig_conf.set_quoted('gint64_format', gint64_format)
1153 glibconfig_conf.set_quoted('guint64_format', guint64_format)
1154 glibconfig_conf.set('gint64_constant', gint64_constant)
1155 glibconfig_conf.set('guint64_constant', guint64_constant)
1156 glib_conf.set('ALIGNOF_GUINT64', guint64_align)
1158 if host_system == 'windows'
1159 glibconfig_conf.set('g_pid_type', 'void*')
1160 glibconfig_conf.set_quoted('g_pid_format', 'p')
1161 if host_machine.cpu_family() == 'x86_64'
1162 glibconfig_conf.set_quoted('g_pollfd_format', '%#' + int64_m + 'x')
1164 glibconfig_conf.set_quoted('g_pollfd_format', '%#x')
1166 glibconfig_conf.set('g_dir_separator', '\\\\')
1167 glibconfig_conf.set('g_searchpath_separator', ';')
1169 glibconfig_conf.set('g_pid_type', 'int')
1170 glibconfig_conf.set_quoted('g_pid_format', 'i')
1171 glibconfig_conf.set_quoted('g_pollfd_format', '%d')
1172 glibconfig_conf.set('g_dir_separator', '/')
1173 glibconfig_conf.set('g_searchpath_separator', ':')
1176 if sizet_size == short_size
1177 glibconfig_conf.set('glib_size_type_define', 'short')
1178 glibconfig_conf.set_quoted('gsize_modifier', 'h')
1179 glibconfig_conf.set_quoted('gssize_modifier', 'h')
1180 glibconfig_conf.set_quoted('gsize_format', 'hu')
1181 glibconfig_conf.set_quoted('gssize_format', 'hi')
1182 glibconfig_conf.set('glib_msize_type', 'SHRT')
1183 elif sizet_size == int_size
1184 glibconfig_conf.set('glib_size_type_define', 'int')
1185 glibconfig_conf.set_quoted('gsize_modifier', '')
1186 glibconfig_conf.set_quoted('gssize_modifier', '')
1187 glibconfig_conf.set_quoted('gsize_format', 'u')
1188 glibconfig_conf.set_quoted('gssize_format', 'i')
1189 glibconfig_conf.set('glib_msize_type', 'INT')
1190 elif sizet_size == long_size
1191 glibconfig_conf.set('glib_size_type_define', 'long')
1192 glibconfig_conf.set_quoted('gsize_modifier', 'l')
1193 glibconfig_conf.set_quoted('gssize_modifier', 'l')
1194 glibconfig_conf.set_quoted('gsize_format', 'lu')
1195 glibconfig_conf.set_quoted('gssize_format', 'li')
1196 glibconfig_conf.set('glib_msize_type', 'LONG')
1197 elif sizet_size == long_long_size
1198 glibconfig_conf.set('glib_size_type_define', 'long long')
1199 glibconfig_conf.set_quoted('gsize_modifier', int64_m)
1200 glibconfig_conf.set_quoted('gssize_modifier', int64_m)
1201 glibconfig_conf.set_quoted('gsize_format', int64_m + 'u')
1202 glibconfig_conf.set_quoted('gssize_format', int64_m + 'i')
1203 glibconfig_conf.set('glib_msize_type', 'INT64')
1205 error('Could not determine size of size_t.')
1208 if voidp_size == int_size
1209 glibconfig_conf.set('glib_intptr_type_define', 'int')
1210 glibconfig_conf.set_quoted('gintptr_modifier', '')
1211 glibconfig_conf.set_quoted('gintptr_format', 'i')
1212 glibconfig_conf.set_quoted('guintptr_format', 'u')
1213 glibconfig_conf.set('glib_gpi_cast', '(gint)')
1214 glibconfig_conf.set('glib_gpui_cast', '(guint)')
1215 elif voidp_size == long_size
1216 glibconfig_conf.set('glib_intptr_type_define', 'long')
1217 glibconfig_conf.set_quoted('gintptr_modifier', 'l')
1218 glibconfig_conf.set_quoted('gintptr_format', 'li')
1219 glibconfig_conf.set_quoted('guintptr_format', 'lu')
1220 glibconfig_conf.set('glib_gpi_cast', '(glong)')
1221 glibconfig_conf.set('glib_gpui_cast', '(gulong)')
1222 elif voidp_size == long_long_size
1223 glibconfig_conf.set('glib_intptr_type_define', 'long long')
1224 glibconfig_conf.set_quoted('gintptr_modifier', int64_m)
1225 glibconfig_conf.set_quoted('gintptr_format', int64_m + 'i')
1226 glibconfig_conf.set_quoted('guintptr_format', int64_m + 'u')
1227 glibconfig_conf.set('glib_gpi_cast', '(gint64)')
1228 glibconfig_conf.set('glib_gpui_cast', '(guint64)')
1230 error('Could not determine size of void *')
1233 if long_size != 8 and long_long_size != 8 and int_size != 8
1234 error('GLib requires a 64-bit type. You might want to consider using the GNU C compiler.')
1237 glibconfig_conf.set('gintbits', int_size * 8)
1238 glibconfig_conf.set('glongbits', long_size * 8)
1239 glibconfig_conf.set('gsizebits', sizet_size * 8)
1240 glibconfig_conf.set('gssizebits', ssizet_size * 8)
1242 # FIXME: maybe meson should tell us the libsuffix?
1243 if host_system == 'windows'
1244 g_module_suffix = 'dll'
1245 elif host_system == 'darwin'
1246 g_module_suffix = 'dylib'
1248 g_module_suffix = 'so'
1250 glibconfig_conf.set('g_module_suffix', g_module_suffix)
1252 glibconfig_conf.set('GLIB_MAJOR_VERSION', major_version)
1253 glibconfig_conf.set('GLIB_MINOR_VERSION', minor_version)
1254 glibconfig_conf.set('GLIB_MICRO_VERSION', micro_version)
1255 glibconfig_conf.set('GLIB_VERSION', glib_version)
1257 glibconfig_conf.set('glib_void_p', voidp_size)
1258 glibconfig_conf.set('glib_long', long_size)
1259 glibconfig_conf.set('glib_size_t', sizet_size)
1260 glibconfig_conf.set('glib_ssize_t', ssizet_size)
1261 if host_machine.endian() == 'big'
1262 glibconfig_conf.set('g_byte_order', 'G_BIG_ENDIAN')
1263 glibconfig_conf.set('g_bs_native', 'BE')
1264 glibconfig_conf.set('g_bs_alien', 'LE')
1266 glibconfig_conf.set('g_byte_order', 'G_LITTLE_ENDIAN')
1267 glibconfig_conf.set('g_bs_native', 'LE')
1268 glibconfig_conf.set('g_bs_alien', 'BE')
1271 # === va_copy checks ===
1272 # we currently check for all three va_copy possibilities, so we get
1273 # all results in config.log for bug reports.
1276 foreach try_func : [ '__va_copy', 'va_copy' ]
1277 if cc.compiles('''#include <stdarg.h>
1280 # include "msvc_recommended_pragmas.h"
1282 void f (int i, ...) {
1283 va_list args1, args2;
1284 va_start (args1, i);
1286 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1288 va_end (args1); va_end (args2);
1293 }'''.format(try_func),
1294 name : try_func + ' check')
1295 va_copy_func = try_func
1298 if va_copy_func != ''
1299 glib_conf.set('G_VA_COPY', va_copy_func)
1300 glib_vacopy = '#define G_VA_COPY ' + va_copy_func
1302 glib_vacopy = '/* #undef G_VA_COPY */'
1305 va_list_val_copy_prog = '''
1308 void f (int i, ...) {
1309 va_list args1, args2;
1310 va_start (args1, i);
1312 if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
1314 va_end (args1); va_end (args2);
1322 rres = cc.run(va_list_val_copy_prog, name : 'va_lists can be copied as values')
1323 glib_va_val_copy = rres.returncode() == 0
1325 glib_va_val_copy = meson.get_cross_property('va_val_copy', true)
1327 if not glib_va_val_copy
1328 glib_vacopy = glib_vacopy + '\n#define G_VA_COPY_AS_ARRAY 1'
1329 glib_conf.set('G_VA_COPY_AS_ARRAY', 1)
1331 glibconfig_conf.set('glib_vacopy', glib_vacopy)
1333 # check for flavours of varargs macros
1334 g_have_iso_c_varargs = cc.compiles('''
1335 void some_func (void) {
1336 int a(int p1, int p2, int p3);
1337 #define call_a(...) a(1,__VA_ARGS__)
1339 }''', name : 'ISO C99 varargs macros in C')
1341 if g_have_iso_c_varargs
1342 glibconfig_conf.set('g_have_iso_c_varargs', '''
1344 # define G_HAVE_ISO_VARARGS 1
1348 g_have_iso_cxx_varargs = cxx.compiles('''
1349 void some_func (void) {
1350 int a(int p1, int p2, int p3);
1351 #define call_a(...) a(1,__VA_ARGS__)
1353 }''', name : 'ISO C99 varargs macros in C++')
1355 if g_have_iso_cxx_varargs
1356 glibconfig_conf.set('g_have_iso_cxx_varargs', '''
1358 # define G_HAVE_ISO_VARARGS 1
1362 g_have_gnuc_varargs = cc.compiles('''
1363 void some_func (void) {
1364 int a(int p1, int p2, int p3);
1365 #define call_a(params...) a(1,params)
1367 }''', name : 'GNUC varargs macros')
1369 if cc.has_header('alloca.h')
1370 glibconfig_conf.set('GLIB_HAVE_ALLOCA_H', true)
1372 has_syspoll = cc.has_header('sys/poll.h')
1373 has_systypes = cc.has_header('sys/types.h')
1375 glibconfig_conf.set('GLIB_HAVE_SYS_POLL_H', true)
1377 has_winsock2 = cc.has_header('winsock2.h')
1379 if has_syspoll and has_systypes
1381 #include<sys/poll.h>
1382 #include<sys/types.h>'''
1385 #define _WIN32_WINNT @0@
1386 #include <winsock2.h>'''.format(glib_conf.get('_WIN32_WINNT'))
1389 error('FIX POLL* defines')
1393 [ 'POLLIN', 'g_pollin', 1 ],
1394 [ 'POLLOUT', 'g_pollout', 4 ],
1395 [ 'POLLPRI', 'g_pollpri', 2 ],
1396 [ 'POLLERR', 'g_pollerr', 8 ],
1397 [ 'POLLHUP', 'g_pollhup', 16 ],
1398 [ 'POLLNVAL', 'g_pollnval', 32 ],
1401 if has_syspoll and has_systypes
1402 foreach d : poll_defines
1403 val = cc.compute_int(d[0], prefix: poll_includes)
1404 glibconfig_conf.set(d[1], val)
1407 # Due to a missed bug in configure.ac the poll test
1408 # never succeeded on Windows and used some pre-defined
1409 # values as a fallback. Keep using them to maintain
1410 # ABI compatibility with autotools builds of glibs
1411 # and with *any* glib-using code compiled against them,
1412 # since these values end up in a public header glibconfig.h.
1413 foreach d : poll_defines
1414 glibconfig_conf.set(d[1], d[2])
1418 # Internet address families
1419 # FIXME: what about Cygwin (G_WITH_CYGWIN)
1420 if host_system == 'windows'
1422 #include <winsock2.h>'''
1425 #include <sys/types.h>
1426 #include <sys/socket.h>'''
1430 [ 'AF_UNIX', 'g_af_unix' ],
1431 [ 'AF_INET', 'g_af_inet' ],
1432 [ 'AF_INET6', 'g_af_inet6' ],
1433 [ 'MSG_OOB', 'g_msg_oob' ],
1434 [ 'MSG_PEEK', 'g_msg_peek' ],
1435 [ 'MSG_DONTROUTE', 'g_msg_dontroute' ],
1437 foreach d : inet_defines
1438 val = cc.compute_int(d[0], prefix: inet_includes)
1439 glibconfig_conf.set(d[1], val)
1442 glibconfig_conf.set('GLIB_USING_SYSTEM_PRINTF', true) # FIXME!
1444 # We need a more robust approach here...
1445 host_cpu_family = host_machine.cpu_family()
1446 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')
1447 glib_memory_barrier_needed = false
1448 elif host_cpu_family.startswith('sparc') or host_cpu_family.startswith('alpha') or host_cpu_family.startswith('powerpc') or host_cpu_family == 'ia64'
1449 glib_memory_barrier_needed = true
1451 warning('Unknown host cpu: ' + host_cpu_family)
1452 glib_memory_barrier_needed = true
1454 glibconfig_conf.set('G_ATOMIC_OP_MEMORY_BARRIER_NEEDED', glib_memory_barrier_needed)
1456 # We need to decide at configure time if GLib will use real atomic
1457 # operations ("lock free") or emulated ones with a mutex. This is
1458 # because we must put this information in glibconfig.h so we know if
1459 # it is safe or not to inline using compiler intrinsics directly from
1462 # We also publish the information via G_ATOMIC_LOCK_FREE in case the
1463 # user is interested in knowing if they can use the atomic ops across
1466 # We can currently support the atomic ops natively when building GLib
1467 # with recent versions of GCC or MSVC.
1469 # Note that the atomic ops are only available with GCC on x86 when
1470 # using -march=i486 or higher. If we detect that the atomic ops are
1471 # not available but would be available given the right flags, we want
1472 # to abort and advise the user to fix their CFLAGS. It's better to do
1473 # that then to silently fall back on emulated atomic ops just because
1474 # the user had the wrong build environment.
1475 atomictest = '''int main() {
1476 volatile int atomic = 2;
1477 __sync_bool_compare_and_swap (&atomic, 2, 3);
1483 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1484 #error "compiler has atomic ops, but doesn't define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"
1488 # We know that we can always use real ("lock free") atomic operations with MSVC
1489 if cc.get_id() == 'msvc' or cc.links(atomictest, name : 'atomic ops')
1490 have_atomic_lock_free = true
1491 if host_system == 'android' and not cc.compiles(atomicdefine, name : 'atomic ops define')
1492 # When building for armv5 on Android, gcc 4.9 provides
1493 # __sync_bool_compare_and_swap but doesn't define
1494 # __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
1495 glib_conf.set('__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4', true)
1498 have_atomic_lock_free = false
1499 if host_machine.cpu_family() == 'x86' and cc.links(atomictest, args : '-march=i486')
1500 error('GLib must be built with -march=i486 or later.')
1503 glibconfig_conf.set('G_ATOMIC_LOCK_FREE', have_atomic_lock_free)
1507 # Determination of thread implementation
1508 if host_system == 'windows' and not get_option('force_posix_threads')
1510 threads_implementation = 'win32'
1511 glibconfig_conf.set('g_threads_impl_def', 'WIN32')
1512 glib_conf.set('THREADS_WIN32', 1)
1514 # FIXME: probably needs more tweaking in meson for things like -D_REENTRANT etc.
1515 thread_dep = dependency('threads')
1516 threads_implementation = 'posix'
1517 pthread_prefix = '''
1519 # define _GNU_SOURCE
1521 #include <pthread.h>'''
1522 glibconfig_conf.set('g_threads_impl_def', 'POSIX')
1523 glib_conf.set('THREADS_POSIX', 1)
1524 if cc.has_header_symbol('pthread.h', 'pthread_attr_setstacksize')
1525 glib_conf.set('HAVE_PTHREAD_ATTR_SETSTACKSIZE', 1)
1527 if cc.has_header_symbol('pthread.h', 'pthread_condattr_setclock')
1528 glib_conf.set('HAVE_PTHREAD_CONDATTR_SETCLOCK', 1)
1530 if cc.has_header_symbol('pthread.h', 'pthread_cond_timedwait_relative_np')
1531 glib_conf.set('HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP', 1)
1533 if cc.has_header_symbol('pthread.h', 'pthread_getname_np', prefix : pthread_prefix)
1534 glib_conf.set('HAVE_PTHREAD_GETNAME_NP', 1)
1536 # Assume that pthread_setname_np is available in some form; same as configure
1537 if cc.links(pthread_prefix + '''
1539 pthread_setname_np("example");
1542 name : 'pthread_setname_np(const char*)',
1543 dependencies : thread_dep)
1545 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
1546 elif cc.links(pthread_prefix + '''
1548 pthread_setname_np(pthread_self(), "example");
1551 name : 'pthread_setname_np(pthread_t, const char*)',
1552 dependencies : thread_dep)
1553 # Linux, Solaris, etc.
1554 glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
1558 # FIXME: we should make it print the result and always return 0, so that
1559 # the output in meson shows up as green
1560 stack_grows_check_prog = '''
1561 volatile int *a = 0, *b = 0;
1573 return b > a ? 0 : 1;
1577 rres = cc.run(stack_grows_check_prog, name : 'stack grows check')
1578 growing_stack = rres.returncode() == 0
1580 growing_stack = meson.get_cross_property('growing_stack', false)
1583 glibconfig_conf.set('G_HAVE_GROWING_STACK', growing_stack)
1587 # USE_LIBICONV_GNU: Using GNU libiconv
1588 # USE_LIBICONV_NATIVE: Using a native impl of iconv in a separate library
1590 # We should never use the MinGW C library's iconv. On Windows we use the
1591 # GNU implementation that ships with MinGW.
1593 # On Windows, just always use the built-in implementation
1594 if host_system == 'windows'
1596 glib_conf.set('USE_LIBICONV_NATIVE', true)
1599 iconv_opt = get_option('iconv')
1600 if iconv_opt == 'libc'
1601 if cc.has_function('iconv_open')
1605 elif iconv_opt == 'gnu'
1606 if cc.has_header_symbol('iconv.h', 'libiconv_open')
1607 glib_conf.set('USE_LIBICONV_GNU', true)
1608 libiconv = [cc.find_library('iconv')]
1611 elif iconv_opt == 'native'
1612 if cc.has_header_symbol('iconv.h', 'iconv_open')
1613 glib_conf.set('USE_LIBICONV_NATIVE', true)
1614 libiconv = [cc.find_library('iconv')]
1620 error('iconv implementation "@0@" not found'.format(iconv_opt))
1625 if get_option('internal_pcre')
1627 use_system_pcre = false
1629 pcre = dependency('libpcre', required : false) # Should check for Unicode support, too. FIXME
1631 if cc.get_id() == 'msvc'
1632 # MSVC: Search for the PCRE library by the configuration, which corresponds
1633 # to the output of CMake builds of PCRE. Note that debugoptimized
1634 # is really a Release build with .PDB files.
1635 if buildtype == 'debug'
1636 pcre = cc.find_library('pcred', required : false)
1638 pcre = cc.find_library('pcre', required : false)
1642 use_system_pcre = pcre.found()
1644 glib_conf.set('USE_SYSTEM_PCRE', use_system_pcre)
1646 use_pcre_static_flag = false
1648 if host_system == 'windows'
1649 if not use_system_pcre
1650 use_pcre_static_flag = true
1652 pcre_static = cc.links('''#define PCRE_STATIC
1660 name : 'Windows system PCRE is a static build')
1662 use_pcre_static_flag = true
1667 libm = cc.find_library('m', required : false)
1668 libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])
1669 zlib_libname = '-lz'
1670 if cc.get_id() != 'msvc'
1671 libz_dep = dependency('zlib', fallback : ['zlib', 'zlib_dep'])
1673 # MSVC: Don't use the bundled ZLib sources until we are sure that we can't
1674 # find the ZLib .lib
1675 libz_dep = dependency('zlib', required : false)
1677 # MSVC: Search for the ZLib .lib, which corresponds to the results of
1678 # of using ZLib's win32/makefile.msc.
1679 if not libz_dep.found()
1680 libz_dep = cc.find_library('zlib1', required : false)
1682 zlib_libname = '-lzlib1'
1684 libz_dep = cc.find_library('zlib', required : false)
1686 zlib_libname = '-lzlib'
1688 libz_dep = subproject('zlib').get_variable('zlib_dep')
1694 # First check in libc, fallback to libintl, and as last chance build
1695 # proxy-libintl subproject.
1696 # FIXME: glib-gettext.m4 has much more checks to detect broken/uncompatible
1697 # implementations. This could be extended if issues are found in some platforms.
1698 if cc.has_function('ngettext')
1701 libintl = cc.find_library('intl', required : false)
1702 if not libintl.found()
1703 libintl = subproject('proxy-libintl').get_variable('intl_dep')
1707 # We require gettext to always be present
1708 glib_conf.set('HAVE_DCGETTEXT', 1)
1709 glib_conf.set('HAVE_GETTEXT', 1)
1711 glib_conf.set_quoted('GLIB_LOCALE_DIR', join_paths(glib_datadir, 'locale'))
1712 # xgettext is optional (on Windows for instance)
1713 xgettext = find_program('xgettext', required : false)
1715 # libmount is only used by gio, but we need to fetch the libs to generate the
1716 # pkg-config file below
1718 if host_system == 'linux' and get_option('libmount')
1719 libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
1720 glib_conf.set('HAVE_LIBMOUNT', 1)
1723 if host_system == 'windows'
1724 winsock2 = cc.find_library('ws2_32')
1728 if host_system == 'linux' and get_option('selinux')
1729 selinux_dep = [dependency('libselinux')]
1730 glib_conf.set('HAVE_SELINUX', 1)
1734 if host_system != 'windows' and get_option('xattr')
1735 # either glibc or libattr can provide xattr support
1736 # for both of them, we check for getxattr being in
1737 # the library and a valid xattr header.
1740 if cc.has_function('getxattr') and cc.has_header('sys/xattr.h')
1741 glib_conf.set('HAVE_SYS_XATTR_H', 1)
1742 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_SYS_XATTR_H')
1743 #failure. try libattr
1744 elif cc.has_header_symbol('attr/xattr.h', 'getxattr')
1745 glib_conf.set('HAVE_ATTR_XATTR_H', 1)
1746 glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_ATTR_XATTR_H')
1747 xattr_dep = [cc.find_library('xattr')]
1749 error('No getxattr implementation found in C library or libxattr')
1752 glib_conf.set('HAVE_XATTR', 1)
1753 if cc.compiles(glib_conf_prefix + '''
1755 #ifdef HAVE_SYS_TYPES_H
1756 #include <sys/types.h>
1758 #ifdef HAVE_SYS_XATTR_H
1759 #include <sys/xattr.h>
1760 #elif HAVE_ATTR_XATTR_H
1761 #include <attr/xattr.h>
1765 ssize_t len = getxattr("", "", NULL, 0, 0, XATTR_NOFOLLOW);
1768 name : 'XATTR_NOFOLLOW')
1769 glib_conf.set('HAVE_XATTR_NOFOLLOW', 1)
1773 python = import('python3').find_python()
1775 # Determine which user environment-dependent files that we want to install
1776 have_bash = find_program('bash', required : false).found() # For completion scripts
1777 have_m4 = find_program('m4', required : false).found() # For m4 macros
1778 have_sh = find_program('sh', required : false).found() # For glib-gettextize
1780 # FIXME: defines in config.h that are not actually used anywhere
1781 # (we add them for now to minimise the diff)
1782 glib_conf.set('HAVE_DLFCN_H', 1)
1783 glib_conf.set('__EXTENSIONS__', 1)
1784 glib_conf.set('STDC_HEADERS', 1)
1786 glib_conf.set('SIZEOF___INT64', 8)
1788 glib_conf.set('GIO_MODULE_DIR', glib_giomodulesdir)
1790 # Sadly Meson does not expose this value:
1791 # https://github.com/mesonbuild/meson/pull/3460
1792 if host_system == 'windows'
1793 # Autotools explicitly removed --Wl,--export-all-symbols from windows builds,
1794 # with no explanation. Do the same here for now but this could be revisited if
1796 export_dynamic_ldflags = []
1797 elif host_system == 'cygwin'
1798 export_dynamic_ldflags = ['-Wl,--export-all-symbols']
1799 elif host_system == 'darwin'
1800 export_dynamic_ldflags = []
1802 export_dynamic_ldflags = ['-Wl,--export-dynamic']
1807 if host_system == 'windows' and cc.get_id() != 'msvc'
1808 # Ensure MSVC-compatible struct packing convention is used when
1809 # compiling for Win32 with gcc. It is used for the whole project and exposed
1811 win32_cflags = ['-mms-bitfields']
1812 add_project_arguments(win32_cflags, language : 'c')
1814 # Win32 API libs, used only by libglib and exposed in glib-2.0.pc
1815 win32_ldflags = ['-lws2_32', '-lole32', '-lwinmm', '-lshlwapi']
1816 elif host_system == 'cygwin'
1817 win32_ldflags = ['-luser32', '-lkernel32']
1821 want_dtrace = get_option('dtrace')
1822 enable_dtrace = false
1824 # Since dtrace support is opt-in we just error out if it was requested but
1825 # is not available. We don't bother with autodetection yet.
1828 error('GLib dtrace support not yet compatible with macOS dtrace')
1830 dtrace = find_program('dtrace', required : true) # error out if not found
1831 if not cc.has_header('sys/sdt.h')
1832 error('dtrace support needs sys/sdt.h header')
1834 # FIXME: autotools build also passes -fPIC -DPIC but is it needed in this case?
1835 dtrace_obj_gen = generator(dtrace,
1836 output : '@BASENAME@.o',
1837 arguments : ['-G', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1838 # FIXME: $(SED) -e "s,define STAP_HAS_SEMAPHORES 1,undef STAP_HAS_SEMAPHORES,"
1839 # -e "s,define _SDT_HAS_SEMAPHORES 1,undef _SDT_HAS_SEMAPHORES,"
1840 dtrace_hdr_gen = generator(dtrace,
1841 output : '@BASENAME@.h',
1842 arguments : ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@'])
1843 glib_conf.set('HAVE_DTRACE', 1)
1844 enable_dtrace = true
1848 want_systemtap = get_option('systemtap')
1849 enable_systemtap = false
1851 if want_systemtap and enable_dtrace
1852 tapset_install_dir = get_option('tapset_install_dir')
1853 if tapset_install_dir == ''
1854 tapset_install_dir = join_paths(get_option('datadir'), 'systemtap/tapset', host_machine.cpu_family())
1856 stp_cdata = configuration_data()
1857 stp_cdata.set('ABS_GLIB_RUNTIME_LIBDIR', glib_libdir)
1858 stp_cdata.set('LT_CURRENT', minor_version * 100)
1859 stp_cdata.set('LT_REVISION', micro_version)
1860 enable_systemtap = true
1864 pkg = import('pkgconfig')
1865 windows = import('windows')
1876 # NOTE: We skip glib-zip.in because the filenames it assumes don't match ours
1878 # Install glib-gettextize executable, if a UNIX-style shell is found
1880 configure_file(input : 'glib-gettextize.in',
1882 install_dir : 'bin',
1883 output : 'glib-gettextize',
1884 configuration : glib_conf)
1888 # Install m4 macros that other projects use
1889 install_data('m4macros/glib-2.0.m4', 'm4macros/glib-gettext.m4', 'm4macros/gsettings.m4',
1890 install_dir : join_paths(get_option('datadir'), 'aclocal'))
1893 if host_system != 'windows'
1894 # Install Valgrind suppression file (except on Windows,
1895 # as Valgrind is currently not supported on Windows)
1896 install_data('glib.supp',
1897 install_dir : join_paths(get_option('datadir'), 'glib-2.0', 'valgrind'))
1900 configure_file(input : 'config.h.meson',
1901 output : 'config.h',
1902 configuration : glib_conf)
1904 if host_system == 'windows'
1905 install_headers([ 'msvc_recommended_pragmas.h' ], subdir : 'glib-2.0')
1908 if get_option('man')
1909 xsltproc = find_program('xsltproc', required : true)
1910 xsltproc_command = [
1913 '--stringparam', 'man.output.quietly', '1',
1914 '--stringparam', 'funcsynopsis.style', 'ansi',
1915 '--stringparam', 'man.th.extra1.suppress', '1',
1916 '--stringparam', 'man.authors.section.enabled', '0',
1917 '--stringparam', 'man.copyright.section.enabled', '0',
1919 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl',
1922 man1_dir = get_option('mandir') + '/man1'
1925 gnome = import('gnome')
1926 subdir('docs/reference/glib')
1927 subdir('docs/reference/gobject')
1928 subdir('docs/reference/gio')