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06d61434c9
glib/meson.build
Christoph Reiter 06d61434c9 meson: pass -fno-builtin when testing whether stpcpy is a builtin 
In https://bugzilla.gnome.org/show_bug.cgi?id=794555 the tests for
posix_memalign and stpcpy were extended to catch the case where
the compiler provides an incomplete builtin.

Under MSYS2 the example code still compiles and links while the real usage
of stpcpy fails to build. To prevent the MSYS2 gcc from using the builtin
versions pass -fno-builtin.

https://bugzilla.gnome.org/show_bug.cgi?id=793729
2018-04-25 17:23:49 +02:00

1871 lines
58 KiB
Meson
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project('glib', 'c', 'cpp',
version : '2.57.0',
meson_version : '>= 0.45.0',
default_options : [
'buildtype=debugoptimized',
'warning_level=1',
'c_std=gnu89'
]
)
cc = meson.get_compiler('c')
cxx = meson.get_compiler('cpp')
cc_can_run = not meson.is_cross_build() or meson.has_exe_wrapper()
if cc.get_id() == 'msvc'
# Ignore several spurious warnings for things glib does very commonly
# If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
# If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
# NOTE: Only add warnings here if you are sure they're spurious
add_project_arguments('/wd4035', '/wd4715', '/wd4116',
'/wd4046', '/wd4068', '/wo4090', '/FImsvc_recommended_pragmas.h',language : 'c')
# Disable SAFESEH with MSVC for plugins and libs that use external deps that
# are built with MinGW
noseh_link_args = ['/SAFESEH:NO']
else
noseh_link_args = []
# -mms-bitfields vs -fnative-struct ?
endif
host_system = host_machine.system()
glib_version = meson.project_version()
glib_api_version = '2.0'
version_arr = glib_version.split('.')
major_version = version_arr[0].to_int()
minor_version = version_arr[1].to_int()
micro_version = version_arr[2].to_int()
interface_age = minor_version.is_odd() ? 0 : micro_version
binary_age = 100 * minor_version + micro_version
soversion = 0
# Maintain compatibility with previous libtool versioning
# current = minor * 100 + micro
library_version = '@0@.@1@.@2@'.format(soversion, binary_age - interface_age, interface_age)
configinc = include_directories('.')
glibinc = include_directories('glib')
gobjectinc = include_directories('gobject')
gmoduleinc = include_directories('gmodule')
gioinc = include_directories('gio')
glib_prefix = get_option('prefix')
glib_bindir = join_paths(glib_prefix, get_option('bindir'))
glib_libdir = join_paths(glib_prefix, get_option('libdir'))
glib_datadir = join_paths(glib_prefix, get_option('datadir'))
glib_pkgdatadir = join_paths(glib_datadir, 'glib-2.0')
glib_includedir = join_paths(glib_prefix, get_option('includedir'))
glib_giomodulesdir = get_option('gio_module_dir')
if glib_giomodulesdir == ''
glib_giomodulesdir = join_paths(glib_libdir, 'gio', 'modules')
endif
glib_pkgconfigreldir = join_paths(glib_libdir, 'pkgconfig')
add_project_arguments('-D_GNU_SOURCE', language: 'c')
# Disable strict aliasing;
# see https://bugzilla.gnome.org/show_bug.cgi?id=791622
if cc.has_argument('-fno-strict-aliasing')
add_project_arguments('-fno-strict-aliasing', language: 'c')
endif
########################
# Configuration begins #
########################
glib_conf = configuration_data()
glibconfig_conf = configuration_data()
# accumulated list of defines as we check for them, so we can easily
# use them later in test programs (autoconf does this automatically)
glib_conf_prefix = ''
glib_conf.set('GLIB_VERSION', glib_version)
glib_conf.set('GLIB_MAJOR_VERSION', major_version)
glib_conf.set('GLIB_MINOR_VERSION', minor_version)
glib_conf.set('GLIB_MICRO_VERSION', micro_version)
glib_conf.set('GLIB_INTERFACE_AGE', interface_age)
glib_conf.set('GLIB_BINARY_AGE', binary_age)
glib_conf.set_quoted('GETTEXT_PACKAGE', 'glib20')
glib_conf.set_quoted('PACKAGE_BUGREPORT', 'http://bugzilla.gnome.org/enter_bug.cgi?product=glib')
glib_conf.set_quoted('PACKAGE_NAME', 'glib')
glib_conf.set_quoted('PACKAGE_STRING', 'glib @0@'.format(meson.project_version()))
glib_conf.set_quoted('PACKAGE_TARNAME', 'glib')
glib_conf.set_quoted('PACKAGE_URL', '')
glib_conf.set_quoted('PACKAGE_VERSION', meson.project_version())
glib_conf.set('ENABLE_NLS', 1)
# Variables used in glib-gettextize and pkg-config files
# These should not contain " quotes around the values
glib_conf.set('PACKAGE', 'glib')
glib_conf.set('VERSION', meson.project_version())
glib_conf.set('prefix', glib_prefix)
glib_conf.set('exec_prefix', glib_prefix)
glib_conf.set('libdir', glib_libdir)
glib_conf.set('includedir', glib_includedir)
glib_conf.set('datadir', glib_datadir)
glib_conf.set('datarootdir', glib_datadir)
glib_conf.set('_GNU_SOURCE', 1)
if host_system == 'windows'
# Poll doesn't work on devices on Windows
glib_conf.set('BROKEN_POLL', true)
endif
# Check for GNU visibility attributes
g_have_gnuc_visibility = cc.compiles('''
void
__attribute__ ((visibility ("hidden")))
f_hidden (void)
{
}
void
__attribute__ ((visibility ("internal")))
f_internal (void)
{
}
void
__attribute__ ((visibility ("protected")))
f_protected (void)
{
}
void
__attribute__ ((visibility ("default")))
f_default (void)
{
}
int main (void)
{
f_hidden();
f_internal();
f_protected();
f_default();
return 0;
}
''',
# Not supported by MSVC, but MSVC also won't support visibility,
# so it's OK to pass -Werror explicitly. Replace with
# override_options : 'werror=true' once that is supported
args: ['-Werror'],
name : 'GNU C visibility attributes test')
if g_have_gnuc_visibility
glibconfig_conf.set('G_HAVE_GNUC_VISIBILITY', '1')
endif
# Detect and set symbol visibility
glib_hidden_visibility_args = []
if get_option('default_library') != 'static'
if host_system == 'windows'
glib_conf.set('DLL_EXPORT', true)
if cc.get_id() == 'msvc'
glib_conf.set('_GLIB_EXTERN', '__declspec(dllexport) extern')
elif cc.has_argument('-fvisibility=hidden')
glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) __declspec(dllexport) extern')
glib_hidden_visibility_args = ['-fvisibility=hidden']
endif
elif cc.has_argument('-fvisibility=hidden')
glib_conf.set('_GLIB_EXTERN', '__attribute__((visibility("default"))) extern')
glib_hidden_visibility_args = ['-fvisibility=hidden']
endif
endif
if host_system == 'windows' and get_option('default_library') == 'static'
glibconfig_conf.set('GLIB_STATIC_COMPILATION', '1')
glibconfig_conf.set('GOBJECT_STATIC_COMPILATION', '1')
endif
# FIXME: what about Cygwin (G_WITH_CYGWIN)
if host_system == 'windows'
glib_os = '''#define G_OS_WIN32
#define G_PLATFORM_WIN32'''
else
glib_os = '#define G_OS_UNIX'
endif
glibconfig_conf.set('glib_os', glib_os)
# We need to know the build type to determine what .lib files we need on Visual Studio
# for dependencies that don't normally come with pkg-config files for Visual Studio builds
buildtype = get_option('buildtype')
glib_debug_cflags = []
if buildtype.startswith('debug')
glib_debug_cflags += ['-DG_ENABLE_DEBUG']
elif buildtype == 'release'
glib_debug_cflags += ['-DG_DISABLE_CAST_CHECKS']
endif
add_project_arguments(glib_debug_cflags, language: 'c')
# check for header files
headers = [
'stdlib.h',
'string.h',
'strings.h',
'memory.h',
'alloca.h',
'locale.h',
'xlocale.h',
'float.h',
'limits.h',
'pwd.h',
'grp.h',
'poll.h',
'termios.h',
'sys/param.h',
'sys/resource.h',
'mach/mach_time.h',
'sys/select.h',
'stdint.h',
'inttypes.h',
'sched.h',
'malloc.h',
'sys/vfs.h',
'sys/vmount.h',
'sys/statfs.h',
'sys/statvfs.h',
'sys/filio.h',
'mntent.h',
'sys/mnttab.h',
'sys/vfstab.h',
'sys/mntctl.h',
'fstab.h',
'linux/magic.h',
'termios.h',
'dirent.h', # MSC does not come with this by default
'sys/time.h', # MSC does not come with this by default
'sys/times.h',
'sys/wait.h',
'unistd.h',
'values.h',
'sys/types.h',
'sys/uio.h',
'sys/mkdev.h',
'sys/mount.h',
'sys/sysctl.h',
'crt_externs.h',
'sys/inotify.h',
'sys/event.h',
'sys/stat.h',
]
foreach h : headers
if cc.has_header(h)
define = 'HAVE_' + h.underscorify().to_upper()
glib_conf.set(define, 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
endif
endforeach
if cc.has_header('linux/netlink.h')
glib_conf.set('HAVE_NETLINK', 1)
endif
if glib_conf.has('HAVE_LOCALE_H')
if cc.has_header_symbol('locale.h', 'LC_MESSAGES')
glib_conf.set('HAVE_LC_MESSAGES', 1)
endif
endif
struct_stat_blkprefix = '''
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
'''
struct_members = [
[ 'stat', 'st_mtimensec' ],
[ 'stat', 'st_mtim.tv_nsec' ],
[ 'stat', 'st_atimensec' ],
[ 'stat', 'st_atim.tv_nsec' ],
[ 'stat', 'st_ctimensec' ],
[ 'stat', 'st_ctim.tv_nsec' ],
[ 'stat', 'st_birthtime' ],
[ 'stat', 'st_birthtimensec' ],
[ 'stat', 'st_birthtim' ],
[ 'stat', 'st_birthtim.tv_nsec' ],
[ 'stat', 'st_blksize', struct_stat_blkprefix ],
[ 'stat', 'st_blocks', struct_stat_blkprefix ],
[ 'statfs', 'f_fstypename', struct_stat_blkprefix ],
[ 'statfs', 'f_bavail', struct_stat_blkprefix ],
[ 'dirent', 'd_type', '''#include <sys/types.h>
#include <dirent.h>''' ],
]
foreach m : struct_members
header_check_prefix = glib_conf_prefix
if m.length() == 3
header_check_prefix = header_check_prefix + m[2]
else
header_check_prefix = header_check_prefix + '#include <sys/stat.h>'
endif
if cc.has_member('struct ' + m[0], m[1], prefix : header_check_prefix)
define = 'HAVE_STRUCT_@0@_@1@'.format(m[0].to_upper(), m[1].underscorify().to_upper())
glib_conf.set(define, 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
else
endif
endforeach
# Compiler flags
if cc.get_id() == 'gcc' or cc.get_id() == 'clang'
test_c_args = [
'-Wall',
'-Wduplicated-branches',
'-Wstrict-prototypes',
'-Werror=declaration-after-statement',
'-Werror=format=2',
'-Werror=format-security',
'-Werror=implicit-function-declaration',
'-Werror=init-self',
'-Werror=missing-include-dirs',
'-Werror=missing-prototypes',
'-Werror=pointer-arith',
]
else
test_c_args = []
endif
add_project_arguments(cc.get_supported_arguments(test_c_args), language: 'c')
# Windows Support (Vista+)
if host_system == 'windows'
glib_conf.set('_WIN32_WINNT', '0x0601')
endif
functions = [
'alloca',
'mmap',
'memalign',
'valloc',
'fsync',
'pipe2',
'issetugid',
'timegm',
'gmtime_r',
'strerror_r',
'lstat',
'strsignal',
'vsnprintf',
'poll',
'vasprintf',
'setenv',
'unsetenv',
'getc_unlocked',
'readlink',
'symlink',
'fdwalk',
'lchmod',
'lchown',
'fchmod',
'fchown',
'utimes',
'getresuid',
'getmntent_r',
'setmntent',
'endmntent',
'hasmntopt',
'getfsstat',
'getvfsstat',
'fallocate',
'localtime_r',
'gmtime_r',
'getpwuid_r',
'getgrgid_r',
'prlimit',
'strnlen',
'wcslen',
'wcsnlen',
'mbrtowc',
'wcrtomb',
'newlocale',
'uselocale',
'strtod_l',
'strtoll_l',
'strtoull_l',
'inotify_init1',
'kqueue',
'kevent',
'endservent',
'sendmmsg',
'recvmmsg',
'link',
]
if glib_conf.has('HAVE_SYS_STATVFS_H')
functions += ['statvfs']
else
have_func_statvfs = false
endif
if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
functions += ['statfs']
else
have_func_statfs = false
endif
if host_system == 'windows'
iphlpapi_dep = cc.find_library('iphlpapi')
iphlpapi_funcs = ['if_nametoindex', 'if_indextoname']
foreach ifunc : iphlpapi_funcs
if cc.has_function(ifunc,
prefix : '#define _WIN32_WINNT 0x0601\n#include <winsock2.h>\n#include <iphlpapi.h>',
dependencies : iphlpapi_dep)
idefine = 'HAVE_' + ifunc.underscorify().to_upper()
glib_conf.set(idefine, 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(idefine)
set_variable('have_func_' + ifunc, true)
else
set_variable('have_func_' + ifunc, false)
endif
endforeach
else
functions += ['if_indextoname', 'if_nametoindex']
endif
# AIX splice is something else
if host_system != 'aix'
functions += ['splice']
endif
foreach f : functions
if cc.has_function(f)
define = 'HAVE_' + f.underscorify().to_upper()
glib_conf.set(define, 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format(define)
set_variable('have_func_' + f, true)
else
set_variable('have_func_' + f, false)
endif
endforeach
if cc.get_id() == 'gcc' or cc.get_id() == 'clang'
no_builtin_args = cc.get_supported_arguments(['-fno-builtin'])
else
no_builtin_args = []
endif
# Check that stpcpy() is not a builtin
if cc.links('''#include <string.h>
int main (int argc, char ** argv) {
char p[10];
return stpcpy (p, argv[0]) != NULL;
}
''',
args : no_builtin_args,
name : 'stpcpy() is not a builtin')
glib_conf.set('HAVE_STPCPY', 1)
endif
# Check that posix_memalign() is not a builtin
if cc.links('''#include <stdlib.h>
int main (int argc, char ** argv) {
void *p;
return posix_memalign (&p, 16, argc);
}
''',
args : no_builtin_args,
name : 'posix_memalign() is not a builtin')
glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
endif
# Check whether strerror_r returns char *
if have_func_strerror_r
if cc.compiles('''#define _GNU_SOURCE
#include <string.h>
int func (void) {
char error_string[256];
char *ptr = strerror_r (-2, error_string, 256);
char c = *strerror_r (-2, error_string, 256);
return c != 0 && ptr != (void*) 0L;
}
''',
name : 'strerror_r() returns char *')
glib_conf.set('STRERROR_R_CHAR_P', 1,
description: 'Defined if strerror_r returns char *')
endif
endif
# Special-case these functions that have alternative names on Windows/MSVC
if cc.has_function('snprintf') or cc.has_header_symbol('stdio.h', 'snprintf')
glib_conf.set('HAVE_SNPRINTF', 1)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF 1\n'
elif cc.has_function('_snprintf') or cc.has_header_symbol('stdio.h', '_snprintf')
hack_define = '1\n#define snprintf _snprintf'
glib_conf.set('HAVE_SNPRINTF', hack_define)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_SNPRINTF ' + hack_define
endif
if cc.has_function('strcasecmp')
glib_conf.set('HAVE_STRCASECMP', 1)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP 1\n'
elif cc.has_function('_stricmp')
hack_define = '1\n#define strcasecmp _stricmp'
glib_conf.set('HAVE_STRCASECMP', hack_define)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRCASECMP ' + hack_define
endif
if cc.has_function('strncasecmp')
glib_conf.set('HAVE_STRNCASECMP', 1)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP 1\n'
elif cc.has_function('_strnicmp')
hack_define = '1\n#define strncasecmp _strnicmp'
glib_conf.set('HAVE_STRNCASECMP', hack_define)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_STRNCASECMP ' + hack_define
endif
if cc.has_header_symbol('sys/sysmacros.h', 'major')
glib_conf.set('MAJOR_IN_SYSMACROS', 1)
elif cc.has_header_symbol('sys/mkdev.h', 'major')
glib_conf.set('MAJOR_IN_MKDEV', 1)
endif
if cc.has_header_symbol('dlfcn.h', 'RTLD_LAZY')
glib_conf.set('HAVE_RTLD_LAZY', 1)
endif
if cc.has_header_symbol('dlfcn.h', 'RTLD_NOW')
glib_conf.set('HAVE_RTLD_NOW', 1)
endif
if cc.has_header_symbol('dlfcn.h', 'RTLD_GLOBAL')
glib_conf.set('HAVE_RTLD_GLOBAL', 1)
endif
# Check whether to use statfs or statvfs
# Some systems have both statfs and statvfs, pick the most "native" for these
if have_func_statfs and have_func_statvfs
# on solaris and irix, statfs doesn't even have the f_bavail field
if not glib_conf.has('HAVE_STRUCT_STATFS_F_BAVAIL')
have_func_statfs = false
else
# at least on linux, statfs is the actual syscall
have_func_statvfs = false
endif
endif
if have_func_statfs
glib_conf.set('USE_STATFS', 1)
stat_func_to_use = 'statfs'
elif have_func_statvfs
glib_conf.set('USE_STATVFS', 1)
stat_func_to_use = 'statvfs'
else
stat_func_to_use = 'neither'
endif
message('Checking whether to use statfs or statvfs .. ' + stat_func_to_use)
if host_system == 'linux'
if cc.has_function('mkostemp',
prefix: '''#define _GNU_SOURCE
#include <stdlib.h>''')
glib_conf.set('HAVE_MKOSTEMP', 1)
endif
endif
osx_ldflags = []
# Mac OS X Carbon support
glib_have_carbon = cc.compiles('''#include <Carbon/Carbon.h>
#include <CoreServices/CoreServices.h>''',
name : 'Mac OS X Carbon support')
glib_have_os_x_9_or_later = false
if glib_have_carbon
glib_conf.set('HAVE_CARBON', true)
osx_ldflags += '-Wl,-framework,Carbon'
glib_have_os_x_9_or_later = cc.compiles('''#include <AvailabilityMacros.h>
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1090
#error Compiling for minimum OS X version before 10.9
#endif''', name : 'OS X 9 or later')
endif
# Mac OS X Cocoa support
glib_have_cocoa = cc.compiles('''#include <Cocoa/Cocoa.h>
#ifdef GNUSTEP_BASE_VERSION
#error "Detected GNUstep, not Cocoa"
#endif''',
name : 'Mac OS X Cocoa support')
if glib_have_cocoa
glib_conf.set('HAVE_COCOA', true)
osx_ldflags += '-Wl,-framework,Foundation -Wl,-framework,AppKit'
endif
add_project_link_arguments(osx_ldflags, language : 'c')
# Check for futex(2)
if cc.links('''#include <linux/futex.h>
#include <sys/syscall.h>
#include <unistd.h>
int main (int argc, char ** argv) {
syscall (__NR_futex, NULL, FUTEX_WAKE, FUTEX_WAIT);
return 0;
}''', name : 'futex(2) system call')
glib_conf.set('HAVE_FUTEX', 1)
endif
# Check for eventfd(2)
if cc.links('''#include <sys/eventfd.h>
#include <unistd.h>
int main (int argc, char ** argv) {
eventfd (0, EFD_CLOEXEC);
return 0;
}''', name : 'eventfd(2) system call')
glib_conf.set('HAVE_EVENTFD', 1)
endif
clock_gettime_test_code = '''
#include <time.h>
struct timespec t;
int main (int argc, char ** argv) {
return clock_gettime(CLOCK_REALTIME, &t);
}'''
librt = []
if cc.links(clock_gettime_test_code, name : 'clock_gettime')
glib_conf.set('HAVE_CLOCK_GETTIME', 1)
elif cc.links(clock_gettime_test_code, args : '-lrt', name : 'clock_gettime in librt')
glib_conf.set('HAVE_CLOCK_GETTIME', 1)
librt = cc.find_library('rt')
endif
# if statfs() takes 2 arguments (Posix) or 4 (Solaris)
if have_func_statfs
if cc.compiles(glib_conf_prefix + '''
#include <unistd.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
void some_func (void) {
struct statfs st;
statfs("/", &st);
}''', name : 'number of arguments to statfs() (n=2)')
glib_conf.set('STATFS_ARGS', 2)
elif cc.compiles(glib_conf_prefix + '''
#include <unistd.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
void some_func (void) {
struct statfs st;
statfs("/", &st, sizeof (st), 0);
}''', name : 'number of arguments to statfs() (n=4)')
glib_conf.set('STATFS_ARGS', 4)
else
error('Unable to determine number of arguments to statfs()')
endif
endif
# open takes O_DIRECTORY as an option
#AC_MSG_CHECKING([])
if cc.compiles('''#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>],
void some_func (void) {
open(0, O_DIRECTORY, 0);
}''', name : 'open() option O_DIRECTORY')
glib_conf.set('HAVE_OPEN_O_DIRECTORY', 1)
endif
# Check whether there is a vsnprintf() function with C99 semantics installed.
# AC_FUNC_VSNPRINTF_C99
# Check whether there is a snprintf() function with C99 semantics installed.
# AC_FUNC_SNPRINTF_C99
have_good_vsnprintf = false
have_good_snprintf = false
if host_system == 'windows'
# Unfortunately the mingw and Visual Studio 2015+ implementations of C99-style
# snprintf and vsnprintf don't seem to be quite good enough, at least not in
# mingw-runtime-3.14. (Sorry, I don't know exactly what is the problem,
# but it is related to floating point formatting and decimal point vs. comma.)
# The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
# rigorous enough to notice, though.
glib_conf.set('HAVE_C99_SNPRINTF', false)
glib_conf.set('HAVE_C99_VSNPRINTF', false)
else
vsnprintf_c99_test_code = '''
#include <stdio.h>
#include <stdarg.h>
int
doit(char * s, ...)
{
char buffer[32];
va_list args;
int r;
va_start(args, s);
r = vsnprintf(buffer, 5, s, args);
va_end(args);
if (r != 7)
exit(1);
/* AIX 5.1 and Solaris seems to have a half-baked vsnprintf()
implementation. The above will return 7 but if you replace
the size of the buffer with 0, it borks! */
va_start(args, s);
r = vsnprintf(buffer, 0, s, args);
va_end(args);
if (r != 7)
exit(1);
exit(0);
}
int
main(void)
{
doit("1234567");
exit(1);
}'''
if cc_can_run
rres = cc.run(vsnprintf_c99_test_code, name : 'C99 vsnprintf')
if rres.compiled() and rres.returncode() == 0
glib_conf.set('HAVE_C99_VSNPRINTF', 1)
have_good_vsnprintf = true
endif
else
have_good_vsnprintf = meson.get_cross_property('have_c99_vsnprintf', false)
glib_conf.set('HAVE_C99_VSNPRINTF', have_good_vsnprintf)
endif
snprintf_c99_test_code = '''
#include <stdio.h>
#include <stdarg.h>
int
doit()
{
char buffer[32];
va_list args;
int r;
r = snprintf(buffer, 5, "1234567");
if (r != 7)
exit(1);
r = snprintf(buffer, 0, "1234567");
if (r != 7)
exit(1);
r = snprintf(NULL, 0, "1234567");
if (r != 7)
exit(1);
exit(0);
}
int
main(void)
{
doit();
exit(1);
}'''
if cc_can_run
rres = cc.run(snprintf_c99_test_code, name : 'C99 snprintf')
if rres.compiled() and rres.returncode() == 0
glib_conf.set('HAVE_C99_SNPRINTF', 1)
have_good_snprintf = true
endif
else
have_good_snprintf = meson.get_cross_property('have_c99_snprintf', false)
glib_conf.set('HAVE_C99_SNPRINTF', have_good_snprintf)
endif
endif
if host_system == 'windows'
glib_conf.set_quoted('EXEEXT', '.exe')
else
glib_conf.set('EXEEXT', '')
endif
if have_good_vsnprintf and have_good_snprintf
# Our printf is 'good' only if vsnpintf()/snprintf() supports C99 well enough
glib_conf.set('HAVE_GOOD_PRINTF', 1) # FIXME: Check for HAVE_UNIX98_PRINTF?
else
glib_conf.set('HAVE_VASPRINTF', 1)
endif
# Check whether the printf() family supports Unix98 %n$ positional parameters
# AC_FUNC_PRINTF_UNIX98
# Nothing uses HAVE_UNIX98_PRINTF
# Check for nl_langinfo and CODESET
# FIXME: Check for HAVE_BIND_TEXTDOMAIN_CODESET
if cc.links('''#include <langinfo.h>
int main (int argc, char ** argv) {
char *codeset = nl_langinfo (CODESET);
return 0;
}''', name : 'nl_langinfo and CODESET')
glib_conf.set('HAVE_LANGINFO_CODESET', 1)
glib_conf.set('HAVE_CODESET', 1)
endif
# Check for nl_langinfo and LC_TIME parts that are needed in gdatetime.c
if cc.links('''#include <langinfo.h>
int main (int argc, char ** argv) {
char *str;
str = nl_langinfo (PM_STR);
str = nl_langinfo (D_T_FMT);
str = nl_langinfo (D_FMT);
str = nl_langinfo (T_FMT);
str = nl_langinfo (T_FMT_AMPM);
str = nl_langinfo (MON_1);
str = nl_langinfo (ABMON_12);
str = nl_langinfo (DAY_1);
str = nl_langinfo (ABDAY_7);
return 0;
}''', name : 'nl_langinfo (PM_STR)')
glib_conf.set('HAVE_LANGINFO_TIME', 1)
endif
if cc.links('''#include <langinfo.h>
int main (int argc, char ** argv) {
char *str;
str = nl_langinfo (_NL_CTYPE_OUTDIGIT0_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT1_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT2_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT3_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT4_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT5_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT6_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT7_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT8_MB);
str = nl_langinfo (_NL_CTYPE_OUTDIGIT9_MB);
return 0;
}''', name : 'nl_langinfo (_NL_CTYPE_OUTDIGITn_MB)')
glib_conf.set('HAVE_LANGINFO_OUTDIGIT', 1)
endif
# Check for nl_langinfo and alternative month names
if cc.links('''#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <langinfo.h>
int main (int argc, char ** argv) {
char *str;
str = nl_langinfo (ALTMON_1);
str = nl_langinfo (ALTMON_2);
str = nl_langinfo (ALTMON_3);
str = nl_langinfo (ALTMON_4);
str = nl_langinfo (ALTMON_5);
str = nl_langinfo (ALTMON_6);
str = nl_langinfo (ALTMON_7);
str = nl_langinfo (ALTMON_8);
str = nl_langinfo (ALTMON_9);
str = nl_langinfo (ALTMON_10);
str = nl_langinfo (ALTMON_11);
str = nl_langinfo (ALTMON_12);
return 0;
}''', name : 'nl_langinfo (ALTMON_n)')
glib_conf.set('HAVE_LANGINFO_ALTMON', 1)
endif
# Check for nl_langinfo and abbreviated alternative month names
if cc.links('''#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <langinfo.h>
int main (int argc, char ** argv) {
char *str;
str = nl_langinfo (_NL_ALTMON_1);
str = nl_langinfo (_NL_ALTMON_2);
str = nl_langinfo (_NL_ALTMON_3);
str = nl_langinfo (_NL_ALTMON_4);
str = nl_langinfo (_NL_ALTMON_5);
str = nl_langinfo (_NL_ALTMON_6);
str = nl_langinfo (_NL_ALTMON_7);
str = nl_langinfo (_NL_ALTMON_8);
str = nl_langinfo (_NL_ALTMON_9);
str = nl_langinfo (_NL_ALTMON_10);
str = nl_langinfo (_NL_ALTMON_11);
str = nl_langinfo (_NL_ALTMON_12);
return 0;
}''', name : 'nl_langinfo (_NL_ALTMON_n)')
glib_conf.set('HAVE_LANGINFO_ABALTMON', 1)
endif
# Check if C compiler supports the 'signed' keyword
if not cc.compiles('''signed char x;''', name : 'signed')
glib_conf.set('signed', '/* NOOP */')
endif
# Check if the ptrdiff_t type exists
if cc.has_header_symbol('stddef.h', 'ptrdiff_t')
glib_conf.set('HAVE_PTRDIFF_T', 1)
endif
# Check for sig_atomic_t type
if cc.links('''#include <signal.h>
#include <sys/types.h>
sig_atomic_t val = 42;
int main (int argc, char ** argv) {
return val == 42 ? 0 : 1;
}''', name : 'sig_atomic_t')
glib_conf.set('HAVE_SIG_ATOMIC_T', 1)
endif
# Check if 'long long' works and what format can be used to print it
# jm_AC_TYPE_LONG_LONG
# Nothing uses HAVE_LONG_LONG_FORMAT and HAVE_INT64_AND_I64
if cc.compiles('''long long ll = 1LL;
int i = 63;
int some_func (void) {
long long llmax = (long long) -1;
return ll << i | ll >> i | llmax / ll | llmax % ll;
}''', name : 'long long')
glib_conf.set('HAVE_LONG_LONG', 1)
have_long_long = true
else
have_long_long = false
endif
# Test whether the compiler supports the 'long double' type.
if cc.compiles('''/* The Stardent Vistra knows sizeof(long double), but does not support it. */
long double foo = 0.0;
/* On Ultrix 4.3 cc, long double is 4 and double is 8. */
int array [2*(sizeof(long double) >= sizeof(double)) - 1];''',
name : 'long double')
glib_conf.set('HAVE_LONG_DOUBLE', 1)
endif
#dnl Test whether <stddef.h> has the 'wchar_t' type.
if cc.has_header_symbol('stddef.h', 'wchar_t')
glib_conf.set('HAVE_WCHAR_T', 1)
endif
# Test whether <wchar.h> has the 'wint_t' type.
if cc.has_header_symbol('wchar.h', 'wint_t')
glib_conf.set('HAVE_WINT_T', 1)
endif
found_uintmax_t = false
# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
# doesn't clash with <sys/types.h>, and declares uintmax_t.
# jm_AC_HEADER_INTTYPES_H
if cc.compiles('''#include <sys/types.h>
#include <inttypes.h>
void some_func (void) {
uintmax_t i = (uintmax_t) -1;
}''', name : 'uintmax_t in inttypes.h')
glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
found_uintmax_t = true
endif
# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
# doesn't clash with <sys/types.h>, and declares uintmax_t.
# jm_AC_HEADER_STDINT_H
if cc.compiles('''#include <sys/types.h>
#include <stdint.h>
void some_func (void) {
uintmax_t i = (uintmax_t) -1;
}''', name : 'uintmax_t in stdint.h')
glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
found_uintmax_t = true
endif
# Define intmax_t to 'long' or 'long long'
# if it is not already defined in <stdint.h> or <inttypes.h>.
# For simplicity, we assume that a header file defines 'intmax_t' if and
# only if it defines 'uintmax_t'.
if found_uintmax_t
glib_conf.set('HAVE_INTMAX_T', 1)
elif have_long_long
glib_conf.set('intmax_t', 'long long')
else
glib_conf.set('intmax_t', 'long')
endif
char_size = cc.sizeof('char')
short_size = cc.sizeof('short')
int_size = cc.sizeof('int')
voidp_size = cc.sizeof('void*')
long_size = cc.sizeof('long')
if have_long_long
long_long_size = cc.sizeof('long long')
else
long_long_size = 0
endif
sizet_size = cc.sizeof('size_t')
if cc.get_id() == 'msvc'
ssizet_size = cc.sizeof('SSIZE_T', prefix : '#include <BaseTsd.h>')
else
ssizet_size = cc.sizeof('ssize_t')
endif
# On Windows, MSVC supports both ll and I64 as format specifiers for 64-bit
# integers, but some versions (at least 4.7.x) of MinGW only support I64.
if host_system == 'windows'
int64_m = 'I64'
else
int64_m = 'll'
endif
char_align = cc.alignment('char')
short_align = cc.alignment('short')
int_align = cc.alignment('int')
voidp_align = cc.alignment('void*')
long_align = cc.alignment('long')
long_long_align = cc.alignment('long long')
# NOTE: We don't check for size of __int64 because long long is guaranteed to
# be 64-bit in C99, and it is available on all supported compilers
sizet_align = cc.alignment('size_t')
glib_conf.set('ALIGNOF_UNSIGNED_LONG', long_align)
glib_conf.set('SIZEOF_CHAR', char_size)
glib_conf.set('SIZEOF_INT', int_size)
glib_conf.set('SIZEOF_SHORT', short_size)
glib_conf.set('SIZEOF_LONG', long_size)
glib_conf.set('SIZEOF_LONG_LONG', long_long_size)
glib_conf.set('SIZEOF_SIZE_T', sizet_size)
glib_conf.set('SIZEOF_SSIZE_T', ssizet_size)
glib_conf.set('SIZEOF_VOID_P', voidp_size)
if short_size == 2
gint16 = 'short'
gint16_modifier='h'
gint16_format='hi'
guint16_format='hu'
elif int_size == 2
gint16 = 'int'
gint16_modifier=''
gint16_format='i'
guint16_format='u'
else
error('Compiler provides no native 16-bit integer type')
endif
glibconfig_conf.set('gint16', gint16)
glibconfig_conf.set_quoted('gint16_modifier', gint16_modifier)
glibconfig_conf.set_quoted('gint16_format', gint16_format)
glibconfig_conf.set_quoted('guint16_format', guint16_format)
if short_size == 4
gint32 = 'short'
gint32_modifier='h'
gint32_format='hi'
guint32_format='hu'
guint32_align = short_align
elif int_size == 4
gint32 = 'int'
gint32_modifier=''
gint32_format='i'
guint32_format='u'
guint32_align = int_align
elif long_size == 4
gint32 = 'long'
gint32_modifier='l'
gint32_format='li'
guint32_format='lu'
guint32_align = long_align
else
error('Compiler provides no native 32-bit integer type')
endif
glibconfig_conf.set('gint32', gint32)
glibconfig_conf.set_quoted('gint32_modifier', gint32_modifier)
glibconfig_conf.set_quoted('gint32_format', gint32_format)
glibconfig_conf.set_quoted('guint32_format', guint32_format)
glib_conf.set('ALIGNOF_GUINT32', guint32_align)
if int_size == 8
gint64 = 'int'
gint64_modifier=''
gint64_format='i'
guint64_format='u'
glib_extension=''
gint64_constant='(val)'
guint64_constant='(val)'
guint64_align = int_align
elif long_size == 8
gint64 = 'long'
glib_extension=''
gint64_modifier='l'
gint64_format='li'
guint64_format='lu'
gint64_constant='(val##L)'
guint64_constant='(val##UL)'
guint64_align = long_align
elif long_long_size == 8
gint64 = 'long long'
glib_extension='G_GNUC_EXTENSION '
gint64_modifier=int64_m
gint64_format=int64_m + 'i'
guint64_format=int64_m + 'u'
gint64_constant='(G_GNUC_EXTENSION (val##LL))'
guint64_constant='(G_GNUC_EXTENSION (val##ULL))'
guint64_align = long_long_align
else
error('Compiler provides no native 64-bit integer type')
endif
glibconfig_conf.set('glib_extension', glib_extension)
glibconfig_conf.set('gint64', gint64)
glibconfig_conf.set_quoted('gint64_modifier', gint64_modifier)
glibconfig_conf.set_quoted('gint64_format', gint64_format)
glibconfig_conf.set_quoted('guint64_format', guint64_format)
glibconfig_conf.set('gint64_constant', gint64_constant)
glibconfig_conf.set('guint64_constant', guint64_constant)
glib_conf.set('ALIGNOF_GUINT64', guint64_align)
if host_system == 'windows'
glibconfig_conf.set('g_pid_type', 'void*')
glibconfig_conf.set_quoted('g_pid_format', 'p')
if host_machine.cpu_family() == 'x86_64'
glibconfig_conf.set_quoted('g_pollfd_format', '%#I64x')
else
glibconfig_conf.set_quoted('g_pollfd_format', '%#x')
endif
glibconfig_conf.set('g_dir_separator', '\\\\')
glibconfig_conf.set('g_searchpath_separator', ';')
else
glibconfig_conf.set('g_pid_type', 'int')
glibconfig_conf.set_quoted('g_pid_format', 'i')
glibconfig_conf.set_quoted('g_pollfd_format', '%d')
glibconfig_conf.set('g_dir_separator', '/')
glibconfig_conf.set('g_searchpath_separator', ':')
endif
if sizet_size == short_size
glibconfig_conf.set('glib_size_type_define', 'short')
glibconfig_conf.set_quoted('gsize_modifier', 'h')
glibconfig_conf.set_quoted('gssize_modifier', 'h')
glibconfig_conf.set_quoted('gsize_format', 'hu')
glibconfig_conf.set_quoted('gssize_format', 'hi')
glibconfig_conf.set('glib_msize_type', 'SHRT')
elif sizet_size == int_size
glibconfig_conf.set('glib_size_type_define', 'int')
glibconfig_conf.set_quoted('gsize_modifier', '')
glibconfig_conf.set_quoted('gssize_modifier', '')
glibconfig_conf.set_quoted('gsize_format', 'u')
glibconfig_conf.set_quoted('gssize_format', 'i')
glibconfig_conf.set('glib_msize_type', 'INT')
elif sizet_size == long_size
glibconfig_conf.set('glib_size_type_define', 'long')
glibconfig_conf.set_quoted('gsize_modifier', 'l')
glibconfig_conf.set_quoted('gssize_modifier', 'l')
glibconfig_conf.set_quoted('gsize_format', 'lu')
glibconfig_conf.set_quoted('gssize_format', 'li')
glibconfig_conf.set('glib_msize_type', 'LONG')
elif sizet_size == long_long_size
glibconfig_conf.set('glib_size_type_define', 'long long')
glibconfig_conf.set_quoted('gsize_modifier', int64_m)
glibconfig_conf.set_quoted('gssize_modifier', int64_m)
glibconfig_conf.set_quoted('gsize_format', int64_m + 'u')
glibconfig_conf.set_quoted('gssize_format', int64_m + 'i')
glibconfig_conf.set('glib_msize_type', 'INT64')
else
error('Could not determine size of size_t.')
endif
if voidp_size == int_size
glibconfig_conf.set('glib_intptr_type_define', 'int')
glibconfig_conf.set_quoted('gintptr_modifier', '')
glibconfig_conf.set_quoted('gintptr_format', 'i')
glibconfig_conf.set_quoted('guintptr_format', 'u')
glibconfig_conf.set('glib_gpi_cast', '(gint)')
glibconfig_conf.set('glib_gpui_cast', '(guint)')
elif voidp_size == long_size
glibconfig_conf.set('glib_intptr_type_define', 'long')
glibconfig_conf.set_quoted('gintptr_modifier', 'l')
glibconfig_conf.set_quoted('gintptr_format', 'li')
glibconfig_conf.set_quoted('guintptr_format', 'lu')
glibconfig_conf.set('glib_gpi_cast', '(glong)')
glibconfig_conf.set('glib_gpui_cast', '(gulong)')
elif voidp_size == long_long_size
glibconfig_conf.set('glib_intptr_type_define', 'long long')
glibconfig_conf.set_quoted('gintptr_modifier', int64_m)
glibconfig_conf.set_quoted('gintptr_format', int64_m + 'i')
glibconfig_conf.set_quoted('guintptr_format', int64_m + 'u')
glibconfig_conf.set('glib_gpi_cast', '(gint64)')
glibconfig_conf.set('glib_gpui_cast', '(guint64)')
else
error('Could not determine size of void *')
endif
if long_size != 8 and long_long_size != 8 and int_size != 8
error('GLib requires a 64-bit type. You might want to consider using the GNU C compiler.')
endif
glibconfig_conf.set('gintbits', int_size * 8)
glibconfig_conf.set('glongbits', long_size * 8)
glibconfig_conf.set('gsizebits', sizet_size * 8)
glibconfig_conf.set('gssizebits', ssizet_size * 8)
# FIXME: maybe meson should tell us the libsuffix?
if host_system == 'windows'
g_module_suffix = 'dll'
elif host_system == 'darwin'
g_module_suffix = 'dylib'
else
g_module_suffix = 'so'
endif
glibconfig_conf.set('g_module_suffix', g_module_suffix)
glibconfig_conf.set('GLIB_MAJOR_VERSION', major_version)
glibconfig_conf.set('GLIB_MINOR_VERSION', minor_version)
glibconfig_conf.set('GLIB_MICRO_VERSION', micro_version)
glibconfig_conf.set('GLIB_VERSION', glib_version)
glibconfig_conf.set('glib_void_p', voidp_size)
glibconfig_conf.set('glib_long', long_size)
glibconfig_conf.set('glib_size_t', sizet_size)
glibconfig_conf.set('glib_ssize_t', ssizet_size)
if host_machine.endian() == 'big'
glibconfig_conf.set('g_byte_order', 'G_BIG_ENDIAN')
glibconfig_conf.set('g_bs_native', 'BE')
glibconfig_conf.set('g_bs_alien', 'LE')
else
glibconfig_conf.set('g_byte_order', 'G_LITTLE_ENDIAN')
glibconfig_conf.set('g_bs_native', 'LE')
glibconfig_conf.set('g_bs_alien', 'BE')
endif
# === va_copy checks ===
# we currently check for all three va_copy possibilities, so we get
# all results in config.log for bug reports.
va_copy_func = ''
foreach try_func : [ '__va_copy', 'va_copy' ]
if cc.compiles('''#include <stdarg.h>
#include <stdlib.h>
#ifdef _MSC_VER
# include "msvc_recommended_pragmas.h"
#endif
void f (int i, ...) {
va_list args1, args2;
va_start (args1, i);
@0@ (args2, args1);
if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
exit (1);
va_end (args1); va_end (args2);
}
int main() {
f (0, 42);
return 0;
}'''.format(try_func),
name : try_func + ' check')
va_copy_func = try_func
endif
endforeach
if va_copy_func != ''
glib_conf.set('G_VA_COPY', va_copy_func)
glib_vacopy = '#define G_VA_COPY ' + va_copy_func
else
glib_vacopy = '/* #undef G_VA_COPY */'
endif
va_list_val_copy_prog = '''
#include <stdarg.h>
#include <stdlib.h>
void f (int i, ...) {
va_list args1, args2;
va_start (args1, i);
args2 = args1;
if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
exit (1);
va_end (args1); va_end (args2);
}
int main() {
f (0, 42);
return 0;
}'''
if cc_can_run
rres = cc.run(va_list_val_copy_prog, name : 'va_lists can be copied as values')
glib_va_val_copy = rres.returncode() == 0
else
glib_va_val_copy = meson.get_cross_property('va_val_copy', true)
endif
if not glib_va_val_copy
glib_vacopy = glib_vacopy + '\n#define G_VA_COPY_AS_ARRAY 1'
glib_conf.set('G_VA_COPY_AS_ARRAY', 1)
endif
glibconfig_conf.set('glib_vacopy', glib_vacopy)
# check for flavours of varargs macros
g_have_iso_c_varargs = cc.compiles('''
void some_func (void) {
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
}''', name : 'ISO C99 varargs macros in C')
if g_have_iso_c_varargs
glibconfig_conf.set('g_have_iso_c_varargs', '''
#ifndef __cplusplus
# define G_HAVE_ISO_VARARGS 1
#endif''')
endif
g_have_iso_cxx_varargs = cxx.compiles('''
void some_func (void) {
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
}''', name : 'ISO C99 varargs macros in C++')
if g_have_iso_cxx_varargs
glibconfig_conf.set('g_have_iso_cxx_varargs', '''
#ifdef __cplusplus
# define G_HAVE_ISO_VARARGS 1
#endif''')
endif
g_have_gnuc_varargs = cc.compiles('''
void some_func (void) {
int a(int p1, int p2, int p3);
#define call_a(params...) a(1,params)
call_a(2,3);
}''', name : 'GNUC varargs macros')
if cc.has_header('alloca.h')
glibconfig_conf.set('GLIB_HAVE_ALLOCA_H', true)
endif
has_syspoll = cc.has_header('sys/poll.h')
has_systypes = cc.has_header('sys/types.h')
if has_syspoll
glibconfig_conf.set('GLIB_HAVE_SYS_POLL_H', true)
endif
has_winsock2 = cc.has_header('winsock2.h')
if has_syspoll and has_systypes
poll_includes = '''
#include<sys/poll.h>
#include<sys/types.h>'''
elif has_winsock2
poll_includes = '''
#define _WIN32_WINNT 0x0600
#include <winsock2.h>'''
else
# FIXME?
error('FIX POLL* defines')
endif
poll_defines = [
[ 'POLLIN', 'g_pollin', 1 ],
[ 'POLLOUT', 'g_pollout', 4 ],
[ 'POLLPRI', 'g_pollpri', 2 ],
[ 'POLLERR', 'g_pollerr', 8 ],
[ 'POLLHUP', 'g_pollhup', 16 ],
[ 'POLLNVAL', 'g_pollnval', 32 ],
]
if has_syspoll and has_systypes
foreach d : poll_defines
val = cc.compute_int(d[0], prefix: poll_includes)
glibconfig_conf.set(d[1], val)
endforeach
elif has_winsock2
# Due to a missed bug in configure.ac the poll test
# never succeeded on Windows and used some pre-defined
# values as a fallback. Keep using them to maintain
# ABI compatibility with autotools builds of glibs
# and with *any* glib-using code compiled against them,
# since these values end up in a public header glibconfig.h.
foreach d : poll_defines
glibconfig_conf.set(d[1], d[2])
endforeach
endif
# Internet address families
# FIXME: what about Cygwin (G_WITH_CYGWIN)
if host_system == 'windows'
inet_includes = '''
#include <winsock2.h>'''
else
inet_includes = '''
#include <sys/types.h>
#include <sys/socket.h>'''
endif
inet_defines = [
[ 'AF_UNIX', 'g_af_unix' ],
[ 'AF_INET', 'g_af_inet' ],
[ 'AF_INET6', 'g_af_inet6' ],
[ 'MSG_OOB', 'g_msg_oob' ],
[ 'MSG_PEEK', 'g_msg_peek' ],
[ 'MSG_DONTROUTE', 'g_msg_dontroute' ],
]
foreach d : inet_defines
val = cc.compute_int(d[0], prefix: inet_includes)
glibconfig_conf.set(d[1], val)
endforeach
glibconfig_conf.set('GLIB_USING_SYSTEM_PRINTF', true) # FIXME!
# We need a more robust approach here...
host_cpu_family = host_machine.cpu_family()
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')
glib_memory_barrier_needed = false
elif host_cpu_family.startswith('sparc') or host_cpu_family.startswith('alpha') or host_cpu_family.startswith('powerpc') or host_cpu_family == 'ia64'
glib_memory_barrier_needed = true
else
warning('Unknown host cpu: ' + host_cpu_family)
glib_memory_barrier_needed = true
endif
glibconfig_conf.set('G_ATOMIC_OP_MEMORY_BARRIER_NEEDED', glib_memory_barrier_needed)
# Note that the atomic ops are only available with GCC on x86 when
# using -march=i486 or higher. If we detect that the atomic ops are
# not available but would be available given the right flags, we want
# to abort and advise the user to fix their CFLAGS. It's better to do
# that then to silently fall back on emulated atomic ops just because
# the user had the wrong build environment.
atomictest = '''void func() {
volatile int atomic = 2;
__sync_bool_compare_and_swap (&atomic, 2, 3);
}
'''
if cc.compiles(atomictest)
glibconfig_conf.set('G_ATOMIC_LOCK_FREE', true)
else
if host_machine.cpu_family() == 'x86' and cc.compiles(atomictest, args : '-march=i486')
error('GLib must be built with -march=i486 or later.')
endif
glibconfig_conf.set('G_ATOMIC_LOCK_FREE', false)
endif
# === Threads ===
# Let meson figure out all this business and whether -pthread or whatnot is needed
# FIXME: probably needs more tweaking in meson for things like -D_REENTRANT etc.
thread_dep = dependency('threads')
# Determination of thread implementation
if host_system == 'windows'
glibconfig_conf.set('g_threads_impl_def', 'WIN32')
glib_conf.set('THREADS_WIN32', 1)
else
glibconfig_conf.set('g_threads_impl_def', 'POSIX')
glib_conf.set('THREADS_POSIX', 1)
if cc.has_header_symbol('pthread.h', 'pthread_attr_setstacksize')
glib_conf.set('HAVE_PTHREAD_ATTR_SETSTACKSIZE', 1)
endif
if cc.has_header_symbol('pthread.h', 'pthread_condattr_setclock')
glib_conf.set('HAVE_PTHREAD_CONDATTR_SETCLOCK', 1)
endif
if cc.has_header_symbol('pthread.h', 'pthread_cond_timedwait_relative_np')
glib_conf.set('HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP', 1)
endif
# Assume that pthread_setname_np is available in some form; same as configure
if cc.links('''#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <pthread.h>
int main() {
pthread_setname_np("example");
}''',
name : 'pthread_setname_np(const char*)',
dependencies : thread_dep)
# macOS and iOS
glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
elif cc.links('''#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <pthread.h>
int main() {
pthread_setname_np(pthread_self(), "example");
}''',
name : 'pthread_setname_np(pthread_t, const char*)',
dependencies : thread_dep)
# Linux, Solaris, etc.
glib_conf.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
endif
endif
# FIXME: we should make it print the result and always return 0, so that
# the output in meson shows up as green
stack_grows_check_prog = '''
volatile int *a = 0, *b = 0;
void f (int i) {
volatile int x = 5;
if (i == 0)
b = &x;
else
f (i - 1);
}
int main () {
volatile int y = 7;
a = &y;
f (100);
return b > a ? 0 : 1;
}'''
if cc_can_run
rres = cc.run(stack_grows_check_prog, name : 'stack grows check')
growing_stack = rres.returncode() == 0
else
growing_stack = meson.get_cross_property('growing_stack', false)
endif
glibconfig_conf.set('G_HAVE_GROWING_STACK', growing_stack)
# Tests for iconv
#
# USE_LIBICONV_GNU: Using GNU libiconv
# USE_LIBICONV_NATIVE: Using a native impl of iconv in a separate library
#
# We should never use the MinGW C library's iconv. On Windows we use the
# GNU implementation that ships with MinGW.
# On Windows, just always use the built-in implementation
if host_system == 'windows'
libiconv = []
glib_conf.set('USE_LIBICONV_NATIVE', true)
else
found_iconv = false
iconv_opt = get_option('iconv')
if iconv_opt == 'libc'
if cc.has_function('iconv_open')
libiconv = []
found_iconv = true
endif
elif iconv_opt == 'gnu'
if cc.has_header_symbol('iconv.h', 'libiconv_open')
glib_conf.set('USE_LIBICONV_GNU', true)
libiconv = [cc.find_library('iconv')]
found_iconv = true
endif
elif iconv_opt == 'native'
if cc.has_header_symbol('iconv.h', 'iconv_open')
glib_conf.set('USE_LIBICONV_NATIVE', true)
libiconv = [cc.find_library('iconv')]
found_iconv = true
endif
endif
if not found_iconv
error('No iconv() implementation found in C library or libiconv')
endif
endif
if get_option('internal_pcre')
pcre = []
use_system_pcre = false
else
pcre = dependency('libpcre', required : false) # Should check for Unicode support, too. FIXME
if not pcre.found()
if cc.get_id() == 'msvc'
# MSVC: Search for the PCRE library by the configuration, which corresponds
# to the output of CMake builds of PCRE. Note that debugoptimized
# is really a Release build with .PDB files.
if buildtype == 'debug'
pcre = cc.find_library('pcred', required : false)
else
pcre = cc.find_library('pcre', required : false)
endif
endif
endif
use_system_pcre = pcre.found()
endif
glib_conf.set('USE_SYSTEM_PCRE', use_system_pcre)
use_pcre_static_flag = false
if host_system == 'windows'
if not use_system_pcre
use_pcre_static_flag = true
else
pcre_static = cc.links('''#define PCRE_STATIC
#include <pcre.h>
int main() {
void *p = NULL;
pcre_free(p);
return 0;
}''',
dependencies: pcre,
name : 'Windows system PCRE is a static build')
if pcre_static
use_pcre_static_flag = true
endif
endif
endif
libm = cc.find_library('m', required : false)
libffi_dep = dependency('libffi', version : '>= 3.0.0', fallback : ['libffi', 'ffi_dep'])
zlib_libname = '-lz'
if cc.get_id() != 'msvc'
libz_dep = dependency('zlib', fallback : ['zlib', 'zlib_dep'])
else
# MSVC: Don't use the bundled ZLib sources until we are sure that we can't
# find the ZLib .lib
libz_dep = dependency('zlib', required : false)
# MSVC: Search for the ZLib .lib, which corresponds to the results of
# of using ZLib's win32/makefile.msc.
if not libz_dep.found()
libz_dep = cc.find_library('zlib1', required : false)
if libz_dep.found()
zlib_libname = '-lzlib1'
else
libz_dep = cc.find_library('zlib', required : false)
if libz_dep.found()
zlib_libname = '-lzlib'
else
libz_dep = subproject('zlib').get_variable('zlib_dep')
endif
endif
endif
endif
# Only used on non-glibc targets
libintl = cc.find_library('intl', required : false)
if host_system == 'windows' and not libintl.found()
# Used only when the gettext library is not available (MSVC, not MinGW)
libintl = subproject('proxy-libintl').get_variable('intl_dep')
glib_conf.set('HAVE_DCGETTEXT', 1)
else
glib_conf.set('HAVE_DCGETTEXT', cc.has_header_symbol('libintl.h', 'dcgettext'))
endif
# We require gettext to always be present
glib_conf.set('HAVE_GETTEXT', 1)
glib_conf.set_quoted('GLIB_LOCALE_DIR', join_paths(glib_datadir, 'locale'))
# xgettext is optional (on Windows for instance)
xgettext = find_program('xgettext', required : false)
# libmount is only used by gio, but we need to fetch the libs to generate the
# pkg-config file below
libmount_dep = []
if host_system == 'linux' and get_option('libmount')
libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
endif
if host_system == 'windows'
winsock2 = cc.find_library('ws2_32')
endif
selinux_dep = []
if host_system == 'linux' and get_option('selinux')
selinux_dep = [dependency('libselinux')]
glib_conf.set('SELINUX_LIBS', '-lselinux')
glib_conf.set('HAVE_SELINUX', 1)
endif
xattr_dep = []
if host_system != 'windows' and get_option('xattr')
# either glibc or libattr can provide xattr support
# for both of them, we check for getxattr being in
# the library and a valid xattr header.
# try glibc
if cc.has_function('getxattr') and cc.has_header('sys/xattr.h')
glib_conf.set('HAVE_SYS_XATTR_H', 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_SYS_XATTR_H')
#failure. try libattr
elif cc.has_header_symbol('attr/xattr.h', 'getxattr')
glib_conf.set('HAVE_ATTR_XATTR_H', 1)
glib_conf_prefix = glib_conf_prefix + '#define @0@ 1\n'.format('HAVE_ATTR_XATTR_H')
xattr_dep = [cc.find_library('xattr')]
else
error('No getxattr implementation found in C library or libxattr')
endif
glib_conf.set('HAVE_XATTR', 1)
if cc.compiles(glib_conf_prefix + '''
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_XATTR_H
#include <sys/xattr.h>
#elif HAVE_ATTR_XATTR_H
#include <attr/xattr.h>
#endif
int main (void) {
ssize_t len = getxattr("", "", NULL, 0, 0, XATTR_NOFOLLOW);
}''',
name : 'XATTR_NOFOLLOW')
glib_conf.set('HAVE_XATTR_NOFOLLOW', 1)
endif
endif
python = import('python3').find_python()
# Determine which user environment-dependent files that we want to install
have_bash = find_program('bash', required : false).found() # For completion scripts
have_m4 = find_program('m4', required : false).found() # For m4 macros
have_sh = find_program('sh', required : false).found() # For glib-gettextize
# FIXME: defines in config.h that are not actually used anywhere
# (we add them for now to minimise the diff)
glib_conf.set('HAVE_DLFCN_H', 1)
glib_conf.set('__EXTENSIONS__', 1)
glib_conf.set('STDC_HEADERS', 1)
# THREADS_NONE
glib_conf.set('SIZEOF___INT64', 8)
# Various substs needed for our pkg-config files
# FIXME: Derive these from the dependency() objects (Meson support needed)
glib_conf.set('ZLIB_LIBS', zlib_libname)
glib_conf.set('LIBFFI_LIBS', '-lffi')
if libintl.found()
glib_conf.set('INTLLIBS', '-lintl')
endif
if libiconv.length() != 0
glib_conf.set('ICONV_LIBS', '-liconv')
endif
if use_system_pcre
glib_conf.set('PCRE_LIBS', '-lpcre')
endif
if libmount_dep.length() != 0
glib_conf.set('LIBMOUNT_LIBS', '-lmount')
glib_conf.set('HAVE_LIBMOUNT', 1)
endif
glib_conf.set('GIO_MODULE_DIR', glib_giomodulesdir)
# FIXME: Missing:
# @COCOA_LIBS@ @CARBON_LIBS@ @G_LIBS_EXTRA@ @GLIB_EXTRA_CFLAGS@
# @G_MODULE_LDFLAGS@
# Tracing: dtrace
want_dtrace = get_option('dtrace')
enable_dtrace = false
# Since dtrace support is opt-in we just error out if it was requested but
# is not available. We don't bother with autodetection yet.
if want_dtrace
if glib_have_carbon
error('GLib dtrace support not yet compatible with macOS dtrace')
endif
dtrace = find_program('dtrace', required : true) # error out if not found
if not cc.has_header('sys/sdt.h')
error('dtrace support needs sys/sdt.h header')
endif
# FIXME: autotools build also passes -fPIC -DPIC but is it needed in this case?
dtrace_obj_gen = generator(dtrace,
output : '@BASENAME@.o',
arguments : ['-G', '-s', '@INPUT@', '-o', '@OUTPUT@'])
# FIXME: $(SED) -e "s,define STAP_HAS_SEMAPHORES 1,undef STAP_HAS_SEMAPHORES,"
# -e "s,define _SDT_HAS_SEMAPHORES 1,undef _SDT_HAS_SEMAPHORES,"
dtrace_hdr_gen = generator(dtrace,
output : '@BASENAME@.h',
arguments : ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@'])
glib_conf.set('HAVE_DTRACE', 1)
enable_dtrace = true
endif
# systemtap
want_systemtap = get_option('systemtap')
enable_systemtap = false
if want_systemtap and enable_dtrace
tapset_install_dir = get_option('tapset_install_dir')
if tapset_install_dir == ''
tapset_install_dir = join_paths(get_option('datadir'), 'systemtap/tapset', host_machine.cpu_family())
endif
stp_cdata = configuration_data()
stp_cdata.set('ABS_GLIB_RUNTIME_LIBDIR', glib_libdir)
stp_cdata.set('LT_CURRENT', minor_version * 100)
stp_cdata.set('LT_REVISION', micro_version)
enable_systemtap = true
endif
pkg = import('pkgconfig')
windows = import('windows')
subdir('glib')
subdir('gobject')
subdir('gthread')
subdir('gmodule')
subdir('gio')
if xgettext.found()
subdir('po')
endif
subdir('tests')
# NOTE: We skip glib-zip.in because the filenames it assumes don't match ours
# Install glib-gettextize executable, if a UNIX-style shell is found
if have_sh
configure_file(input : 'glib-gettextize.in',
install : true,
install_dir : 'bin',
output : 'glib-gettextize',
configuration : glib_conf)
endif
if have_m4
# Install m4 macros that other projects use
install_data('m4macros/glib-2.0.m4', 'm4macros/glib-gettext.m4', 'm4macros/gsettings.m4',
install_dir : join_paths(get_option('datadir'), 'aclocal'))
endif
if host_system != 'windows'
# Install Valgrind suppression file (except on Windows,
# as Valgrind is currently not supported on Windows)
install_data('glib.supp',
install_dir : join_paths(get_option('datadir'), 'glib-2.0', 'valgrind'))
endif
configure_file(input : 'config.h.meson',
output : 'config.h',
configuration : glib_conf)
if host_system == 'windows'
install_headers([ 'msvc_recommended_pragmas.h' ], subdir : 'glib-2.0')
endif
if get_option('man')
xsltproc = find_program('xsltproc', required : true)
xsltproc_command = [
xsltproc,
'--nonet',
'--stringparam', 'man.output.quietly', '1',
'--stringparam', 'funcsynopsis.style', 'ansi',
'--stringparam', 'man.th.extra1.suppress', '1',
'--stringparam', 'man.authors.section.enabled', '0',
'--stringparam', 'man.copyright.section.enabled', '0',
'-o', '@OUTPUT@',
'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl',
'@INPUT@',
]
man1_dir = get_option('mandir') + '/man1'
endif
gnome = import('gnome')
subdir('docs/reference/glib')
subdir('docs/reference/gobject')
subdir('docs/reference/gio')
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