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meson.build
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project('glib', 'c',
version : '2.73.3',
# NOTE: See the policy in docs/meson-version.md before changing the Meson dependency
meson_version : '>= 0.60.0',
default_options : [
'buildtype=debugoptimized',
'warning_level=3',
'c_std=gnu99'
]
)
cc = meson.get_compiler('c')
have_cxx = add_languages('cpp', native: false, required: get_option('oss_fuzz').enabled())
if have_cxx
cxx = meson.get_compiler('cpp')
endif
cc_can_run = meson.can_run_host_binaries()
if cc.get_argument_syntax() == 'msvc'
# Ignore several spurious warnings for things glib does very commonly
# (also for clang-cl)
add_project_arguments('/FImsvc_recommended_pragmas.h',language : 'c')
endif
if cc.get_id() == 'msvc'
# Set the input and exec encoding to utf-8, like is the default with GCC
add_project_arguments(cc.get_supported_arguments(['/utf-8']), 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()
if host_system == 'darwin'
ios_test_code = '''#include <TargetConditionals.h>
#if ! TARGET_OS_IPHONE
#error "Not iOS/tvOS/watchOS/iPhoneSimulator"
#endif'''
if cc.compiles(ios_test_code, name : 'building for iOS')
host_system = 'ios'
endif
endif
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
current = binary_age - interface_age
library_version = '@0@.@1@.@2@'.format(soversion, current, interface_age)
darwin_versions = [current + 1, '@0@.@1@'.format(current + 1, 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_libexecdir = join_paths(glib_prefix, get_option('libexecdir'))
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'))
if get_option('gio_module_dir') != ''
glib_giomodulesdir = join_paths(glib_prefix, get_option('gio_module_dir'))
else
glib_giomodulesdir = join_paths(glib_libdir, 'gio', 'modules')
endif
if get_option('multiarch')
# For multiarch/multilib distributions, install each architecture's
# build of executables used in packaging triggers (like gio-querymodules)
# to an architecture-dependent location, with a compatibility symlink
# in the PATH.
multiarch_bindir = get_option('libdir') / 'glib-2.0'
multiarch_libexecdir = multiarch_bindir
pkgconfig_multiarch_bindir = '${libdir}/glib-2.0'
else
# For single-architecture distributions, just install them into the PATH
# as was traditionally done.
multiarch_bindir = get_option('bindir')
multiarch_libexecdir = get_option('libexecdir')
pkgconfig_multiarch_bindir = '${bindir}'
endif
glib_pkgconfigreldir = join_paths(glib_libdir, 'pkgconfig')
if get_option('charsetalias_dir') != ''
glib_charsetaliasdir = join_paths(glib_prefix, get_option('charsetalias_dir'))
else
glib_charsetaliasdir = glib_libdir
endif
glib_localstatedir = get_option('localstatedir')
if not glib_localstatedir.startswith('/')
# See https://mesonbuild.com/Builtin-options.html#directories
glib_localstatedir = join_paths(glib_prefix, glib_localstatedir)
endif
installed_tests_metadir = join_paths(glib_datadir, 'installed-tests', meson.project_name())
installed_tests_execdir = join_paths(glib_libexecdir, 'installed-tests', meson.project_name())
installed_tests_enabled = get_option('installed_tests')
installed_tests_template = files('tests/template.test.in')
installed_tests_template_tap = files('tests/template-tap.test.in')
# Don’t build the tests unless we can run them (either natively, in an exe wrapper, or by installing them for later use)
build_tests = get_option('tests') and (meson.can_run_host_binaries() or installed_tests_enabled)
# Allow the tests to be easily run under valgrind using --setup=valgrind
valgrind = find_program('valgrind', required: false)
if valgrind.found()
suppression_file = files('tools' / 'glib.supp')
add_test_setup('valgrind',
exclude_suites: [ 'no-valgrind' ],
exe_wrapper: [
valgrind,
'--tool=memcheck',
'--error-exitcode=1',
'--track-origins=yes',
'--leak-check=full',
'--leak-resolution=high',
'--num-callers=50',
'--show-leak-kinds=definite,possible',
'--show-error-list=yes',
'--suppressions=@0@'.format(meson.project_source_root() /
'@0@'.format(suppression_file[0])),
],
timeout_multiplier: 10,
)
endif
add_project_arguments('-D_GNU_SOURCE', language: 'c')
if host_system == 'qnx'
add_project_arguments('-D_QNX_SOURCE', language: 'c')
endif
# 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
# dummy/empty dependency() object to declare fallbacks and simpler dependencies
not_found = dependency('', required: false)
########################
# 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_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', 'https://gitlab.gnome.org/GNOME/glib/issues/new')
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)
# used by the .rc.in files
glibconfig_conf.set('LT_CURRENT_MINUS_AGE', soversion)
glib_conf.set('_GNU_SOURCE', 1)
if host_system in ['windows', 'darwin']
# Poll doesn't work on devices on Windows, and macOS's poll() implementation is known to be broken
glib_conf.set('BROKEN_POLL', true)
endif
if host_system == 'windows' and cc.get_id() != 'msvc' and cc.get_id() != 'clang-cl'
# FIXME: Ideally we shouldn't depend on this on Windows and should use
# 64 bit capable Windows API that also works with MSVC.
# The autotools build did set this for mingw and while meson sets it
# for gcc/clang by default, it doesn't do so on Windows.
glib_conf.set('_FILE_OFFSET_BITS', 64)
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 ("default")))
f_default (void)
{
}
int main (void)
{
f_hidden();
f_internal();
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' or host_system == 'cygwin'
if get_option('default_library') != 'shared'
error('On Windows default_library must be "shared" or "static" but not "both"')
endif
glib_conf.set('DLL_EXPORT', true)
if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl'
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 get_option('default_library') == 'static'
glibconfig_conf.set('GLIB_STATIC_COMPILATION', '1')
glibconfig_conf.set('GOBJECT_STATIC_COMPILATION', '1')
glibconfig_conf.set('G_INTL_STATIC_COMPILATION', '1')
glibconfig_conf.set('FFI_STATIC_BUILD', '1')
endif
# Cygwin glib port maintainers made it clear
# (via the patches they apply) that they want no
# part of glib W32 code, therefore we do not define
# G_PLATFORM_WIN32 for host_system == 'cygwin'.
# This makes G_PLATFORM_WIN32 a synonym for
# G_OS_WIN32.
if host_system == 'windows'
glib_os = '''#define G_OS_WIN32
#define G_PLATFORM_WIN32'''
elif host_system == 'cygwin'
glib_os = '''#define G_OS_UNIX
#define G_WITH_CYGWIN'''
else
glib_os = '#define G_OS_UNIX'
endif
glibconfig_conf.set('glib_os', glib_os)
# We need to know the CRT being used to determine what .lib files we need on
# Visual Studio for dependencies that don't normally come with pkg-config files
vs_crt = 'release'
vs_crt_opt = get_option('b_vscrt')
if vs_crt_opt in ['mdd', 'mtd']
vs_crt = 'debug'
elif vs_crt_opt == 'from_buildtype'
if get_option('buildtype') == 'debug'
vs_crt = 'debug'
endif
endif
# Use debug/optimization flags to determine whether to enable debug or disable
# cast checks. We have a non-production (debug) build if debug is true and if
# optimization is 0 or g; otherwise, we have a production build.
glib_debug_cflags = []
glib_debug = get_option('glib_debug')
optimized_build = get_option('optimization') not in [ '0', 'g' ]
if glib_debug.enabled() or (glib_debug.auto() and get_option('debug') and not optimized_build)
glib_debug_cflags += ['-DG_ENABLE_DEBUG']
message('Enabling various debug infrastructure')
elif optimized_build
glib_debug_cflags += ['-DG_DISABLE_CAST_CHECKS']
message('Disabling cast checks')
endif
if not get_option('glib_assert')
glib_debug_cflags += ['-DG_DISABLE_ASSERT']
message('Disabling GLib asserts')
endif
if not get_option('glib_checks')
glib_debug_cflags += ['-DG_DISABLE_CHECKS']
message('Disabling GLib checks')
endif
add_project_arguments(glib_debug_cflags, language: 'c')
# check for header files
headers = [
'alloca.h',
'afunix.h',
'crt_externs.h',
'dirent.h', # MSC does not come with this by default
'float.h',
'fstab.h',
'grp.h',
'inttypes.h',
'limits.h',
'locale.h',
'mach/mach_time.h',
'memory.h',
'mntent.h',
'poll.h',
'pwd.h',
'sched.h',
'spawn.h',
'stdatomic.h',
'stdint.h',
'stdlib.h',
'string.h',
'strings.h',
'sys/auxv.h',
'sys/event.h',
'sys/filio.h',
'sys/inotify.h',
'sys/mkdev.h',
'sys/mntctl.h',
'sys/mnttab.h',
'sys/mount.h',
'sys/param.h',
'sys/resource.h',
'sys/select.h',
'sys/statfs.h',
'sys/stat.h',
'sys/statvfs.h',
'sys/sysctl.h',
'sys/time.h', # MSC does not come with this by default
'sys/times.h',
'sys/types.h',
'sys/uio.h',
'sys/vfs.h',
'sys/vfstab.h',
'sys/vmount.h',
'sys/wait.h',
'termios.h',
'unistd.h',
'values.h',
'wchar.h',
'xlocale.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
# FreeBSD includes a malloc.h which always throws compilation error, so we have
# to use check_header() rather than has_header().
if cc.check_header('malloc.h')
glib_conf.set('HAVE_MALLOC_H', 1)
glib_conf_prefix = glib_conf_prefix + '#define HAVE_MALLOC_H 1\n'
endif
if cc.has_header('linux/netlink.h')
glib_conf.set('HAVE_NETLINK', 1)
endif
# Is statx() supported? Android systems don’t reliably support it as of August 2020.
statx_code = '''
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <sys/stat.h>
#include <fcntl.h>
int main (void)
{
struct statx stat_buf;
return statx (AT_FDCWD, "/", AT_SYMLINK_NOFOLLOW, STATX_BASIC_STATS | STATX_BTIME, &stat_buf);
}
'''
if host_system != 'android' and cc.compiles(statx_code, name : 'statx() test')
glib_conf.set('HAVE_STATX', 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>''' ],
[ 'statvfs', 'f_basetype', '#include <sys/statvfs.h>' ],
[ 'statvfs', 'f_fstypename', '#include <sys/statvfs.h>' ],
[ 'tm', 'tm_gmtoff', '#include <time.h>' ],
[ 'tm', '__tm_gmtoff', '#include <time.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'
warning_common_args = [
'-Wduplicated-branches',
'-Wimplicit-fallthrough',
'-Wmisleading-indentation',
'-Wunused',
# Due to maintained deprecated code, we do not want to see unused parameters
'-Wno-unused-parameter',
# Due to pervasive use of things like GPOINTER_TO_UINT(), we do not support
# building with -Wbad-function-cast.
'-Wno-cast-function-type',
# Due to function casts through (void*) we cannot support -Wpedantic:
# https://wiki.gnome.org/Projects/GLib/CompilerRequirements#Function_pointer_conversions.
'-Wno-pedantic',
# A zero-length format string shouldn't be considered an issue.
'-Wno-format-zero-length',
# We explicitly require variadic macros
'-Wno-variadic-macros',
'-Werror=format=2',
'-Werror=init-self',
'-Werror=missing-include-dirs',
'-Werror=pointer-arith',
'-Werror=unused-result',
]
warning_c_args = warning_common_args + [
'-Wstrict-prototypes',
# Due to pervasive use of things like GPOINTER_TO_UINT(), we do not support
# building with -Wbad-function-cast.
'-Wno-bad-function-cast',
'-Werror=declaration-after-statement',
'-Werror=implicit-function-declaration',
'-Werror=missing-prototypes',
'-Werror=pointer-sign',
]
warning_cxx_args = warning_common_args
warning_objc_args = warning_c_args
warning_c_link_args = [
'-Wl,-z,nodelete',
]
if get_option('bsymbolic_functions')
warning_c_link_args += ['-Wl,-Bsymbolic-functions']
endif
elif cc.get_id() == 'msvc'
warning_c_args = [
# 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
'/wo4057', # 'operator': 'identifier1' differs in indirection to slightly different base types from 'identifier2'
'/wd4068', # unknown pragma
'/wo4090', # 'operation': different 'modifier' qualifiers
'/wd4100', # 'identifier': unreferenced formal parameter
'/wd4116', # unnamed type definition in parentheses
'/wo4125', # decimal digit terminates octal escape sequence
'/wd4127', # conditional expression is constant
'/wd4146', # unary minus operator applied to unsigned type, result still unsigned
'/wd4152', # nonstandard extension, function/data pointer conversion in expression
'/wd4201', # nonstandard extension used: nameless struct/union
'/wd4232', # nonstandard extension used: 'identifier': address of dllimport 'dllimport' is not static, identity not guaranteed
'/wo4245', # 'conversion_type': conversion from 'type1' to 'type2', signed/unsigned mismatch
'/wo4267', # 'variable': conversion from 'size_t' to 'type', possible loss of data
'/wd4334', # 'shift_operator': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)
'/wo4389', # 'operator': signed/unsigned mismatch
'/wo4702', # unreachable code
'/wd4706', # assignment within conditional expression
]
warning_cxx_args = []
warning_objc_args = []
warning_c_link_args = []
else
warning_c_args = []
warning_cxx_args = []
warning_objc_args = []
warning_c_link_args = []
endif
add_project_arguments(cc.get_supported_arguments(warning_c_args), language: 'c')
if have_cxx
add_project_arguments(cxx.get_supported_arguments(warning_cxx_args), language: 'cpp')
endif
# FIXME: We cannot build some of the GResource tests with -z nodelete, which
# means we cannot use that flag in add_project_link_arguments(), and must add
# it to the relevant targets manually. We do the same with -Bsymbolic-functions
# because that is what the autotools build did.
# See https://github.com/mesonbuild/meson/pull/3520 for a way to eventually
# improve this.
glib_link_flags = cc.get_supported_link_arguments(warning_c_link_args)
# Windows SDK requirements and checks
if host_system == 'windows'
# Check whether we're building for UWP apps
code = '''
#include <windows.h>
#if !(WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP))
#error "Not building for UWP"
#endif'''
if cc.compiles(code, name : 'building for UWP')
glib_conf.set('G_WINAPI_ONLY_APP', true)
# We require Windows 10+ on WinRT
glib_conf.set('_WIN32_WINNT', '0x0A00')
uwp_gio_deps = [cc.find_library('shcore'),
cc.find_library('runtimeobject')]
else
# We require Windows 7+ on Win32
glib_conf.set('_WIN32_WINNT', '0x0601')
uwp_gio_deps = []
endif
endif
functions = [
'close_range',
'endmntent',
'endservent',
'epoll_create',
'fallocate',
'fchmod',
'fchown',
'fdwalk',
'fsync',
'getauxval',
'getc_unlocked',
'getfsstat',
'getgrgid_r',
'getmntent_r',
'getpwuid_r',
'getresuid',
'getvfsstat',
'gmtime_r',
'hasmntopt',
'inotify_init1',
'issetugid',
'kevent',
'kqueue',
'lchmod',
'lchown',
'link',
'localtime_r',
'lstat',
'mbrtowc',
'memalign',
'mmap',
'newlocale',
'pipe2',
'poll',
'prlimit',
'readlink',
'recvmmsg',
'sendmmsg',
'setenv',
'setmntent',
'strerror_r',
'strnlen',
'strsignal',
'strtod_l',
'strtoll_l',
'strtoull_l',
'symlink',
'timegm',
'unsetenv',
'uselocale',
'utimes',
'utimensat',
'valloc',
'vasprintf',
'vsnprintf',
'wcrtomb',
'wcslen',
'wcsnlen',
'sysctlbyname',
]
# _NSGetEnviron is available on iOS too, but its usage gets apps rejected from
# the app store since it's considered 'private API'
if host_system == 'darwin'
functions += ['_NSGetEnviron']
endif
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
iphl_prefix = '''#define _WIN32_WINNT @0@
#include <winsock2.h>
#include <iphlpapi.h>'''.format(glib_conf.get('_WIN32_WINNT'))
if cc.has_function(ifunc,
prefix : iphl_prefix,
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
# Check that stpcpy() is usable; must use header.
# cc.has_function() in some cases (clang, gcc 10+) assumes that if the
# compiler provides a builtin of the same name that the function exists, while
# it's in fact not provided by any header or library. This is true for
# stpcpy() on Windows using clang and gcc as well as posix_memalign() using
# gcc on Windows. Skip these checks on Windows for now to avoid false
# positives. See https://github.com/mesonbuild/meson/pull/7116,
# https://github.com/mesonbuild/meson/issues/3672 and
# https://github.com/mesonbuild/meson/issues/5628.
# FIXME: Once meson no longer returns success for stpcpy() and
# posix_memalign() on Windows using GCC and clang we can remove this.
if host_system != 'windows' and cc.has_function('stpcpy', prefix : '#include <string.h>')
glib_conf.set('HAVE_STPCPY', 1)
endif
if cc.has_function('memalign', prefix: '#include <stdlib.h>\n#include <malloc.h>')
glib_conf.set('HAVE_MEMALIGN', 1)
endif
if cc.has_function('_aligned_malloc', prefix: '#include <malloc.h>')
glib_conf.set('HAVE__ALIGNED_MALLOC', 1)
endif
if host_system != 'windows' and cc.has_function('aligned_alloc', prefix: '#include <stdlib.h>')
glib_conf.set('HAVE_ALIGNED_ALLOC', 1)
endif
if host_system != 'windows' and cc.has_function('posix_memalign', prefix: '#include <stdlib.h>')
glib_conf.set('HAVE_POSIX_MEMALIGN', 1)
endif
# Check that posix_spawn() is usable; must use header
if cc.has_function('posix_spawn', prefix : '#include <spawn.h>')
glib_conf.set('HAVE_POSIX_SPAWN', 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', prefix: '#include <strings.h>')
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', prefix: '#include <strings.h>')
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)
elif cc.has_header_symbol('sys/types.h', 'major')
glib_conf.set('MAJOR_IN_TYPES', 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
have_rtld_next = false
if cc.has_header_symbol('dlfcn.h', 'RTLD_NEXT', args: '-D_GNU_SOURCE')
have_rtld_next = true
glib_conf.set('HAVE_RTLD_NEXT', 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
glib_have_os_x_9_or_later = false
glib_have_carbon = false
glib_have_cocoa = false
if host_system == 'darwin'
add_languages('objc', native: false, required: true)
objcc = meson.get_compiler('objc')
add_project_arguments(objcc.get_supported_arguments(warning_objc_args), language: 'objc')
# Mac OS X Carbon support
glib_have_carbon = objcc.compiles('''#include <Carbon/Carbon.h>
#include <CoreServices/CoreServices.h>''',
name : 'Mac OS X Carbon support')
if glib_have_carbon
glib_conf.set('HAVE_CARBON', true)
glib_have_os_x_9_or_later = objcc.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 = objcc.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)
endif
endif
if host_system == 'qnx'
glib_conf.set('HAVE_QNX', 1)
endif
# 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
# Check for pidfd_open(2)
if cc.links('''#include <sys/syscall.h>
#include <sys/wait.h>
#include <linux/wait.h>
#include <unistd.h>
int main (int argc, char ** argv) {
siginfo_t child_info = { 0, };
syscall (SYS_pidfd_open, 0, 0);
waitid (P_PIDFD, 0, &child_info, WEXITED | WNOHANG);
return 0;
}''', name : 'pidfd_open(2) system call')
glib_conf.set('HAVE_PIDFD', 1)
endif
# Check for __uint128_t (gcc) by checking for 128-bit division
uint128_t_src = '''int main() {
static __uint128_t v1 = 100;
static __uint128_t v2 = 10;
static __uint128_t u;
u = v1 / v2;
}'''
if cc.compiles(uint128_t_src, name : '__uint128_t available')
glib_conf.set('HAVE_UINT128_T', 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
dlopen_dlsym_test_code = '''
#include <dlfcn.h>
int glib_underscore_test (void) { return 42; }
int main (int argc, char ** argv) {
void *f1 = (void*)0, *f2 = (void*)0, *handle;
handle = dlopen ((void*)0, 0);
if (handle) {
f1 = dlsym (handle, "glib_underscore_test");
f2 = dlsym (handle, "_glib_underscore_test");
}
return (!f2 || f1);
}'''
libdl_dep = []
if cc.links(dlopen_dlsym_test_code, name : 'dlopen() and dlsym() in system libraries')
have_dlopen_dlsym = true
elif cc.links(dlopen_dlsym_test_code, args : '-ldl', name : 'dlopen() and dlsym() in libdl')
have_dlopen_dlsym = true
libdl_dep = cc.find_library('dl')
else
have_dlopen_dlsym = false
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)