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meson.build
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meson.build
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project('VLC', ['c', 'cpp'],
version: '4.0.0-dev',
default_options: ['c_std=gnu17', 'cpp_std=c++17'],
meson_version: '>=0.60.0')
vlc_copyright_years = '1996-2018'
vlc_version_codename = 'Otto Chriek'
# LibVLC library (ABI) version
# Format must be major.minor.micro
libvlc_abi_version = '12.0.0'
libvlc_abi_version_parts = libvlc_abi_version.split('.')
libvlc_abi_version_major = libvlc_abi_version_parts[0].to_int()
libvlc_abi_version_minor = libvlc_abi_version_parts[1].to_int()
libvlc_abi_version_micro = libvlc_abi_version_parts[2].to_int()
vlc_version_full = meson.project_version()
vlc_version_parts = vlc_version_full.split('-')[0].split('.')
vlc_version_type = vlc_version_full.split('-').get(1, '')
if (vlc_version_parts.length() < 3 or vlc_version_parts.length() > 4)
error(f'Unexpected project version "@vlc_version_full@".',
'Expected a format of major.minor.revision[.extra][-dev]')
endif
vlc_version_major = vlc_version_parts[0].to_int()
vlc_version_minor = vlc_version_parts[1].to_int()
vlc_version_revision = vlc_version_parts[2].to_int()
vlc_version_extra = vlc_version_parts.get(3, '0').to_int()
# Short version (major.minor.revision)
vlc_version_short = f'@vlc_version_major@.@vlc_version_minor@.@vlc_version_revision@'
# Normal VLC version (major.minor.revision[-dev])
vlc_version = vlc_version_short + ((vlc_version_type != '') ? f'-@vlc_version_type@' : '')
vlc_package_name = meson.project_name().to_lower()
vlc_src_root = meson.current_source_dir()
vlc_build_root = meson.current_build_dir()
cdata = configuration_data()
gen_vlc_about = find_program('buildsystem/gen-vlc-about.py')
vlc_about = custom_target('vlc_about.h',
input: ['COPYING', 'THANKS', 'AUTHORS'],
output: ['vlc_about.h'],
command: [gen_vlc_about,
'@INPUT0@',
'@INPUT1@',
'@INPUT2@',
'@OUTPUT@'])
add_project_arguments('-DHAVE_CONFIG_H=1', language: ['c', 'cpp', 'objc'])
# If building with contribs, read the relevant paths from the machine file
# to use it during checks (check_header, find_library) later.
contrib_dir = meson.get_external_property('contrib_dir', '')
if contrib_dir != ''
message('Using contribs: ' + contrib_dir)
contrib_incdir = meson.get_external_property('contrib_incdir')
contrib_libdir = meson.get_external_property('contrib_libdir')
# TODO: Remove contrib_inc_args and use contrib_incdir directly
# once upstream solution to
# https://github.com/mesonbuild/meson/pull/1386#issuecomment-1353858080
# is found.
contrib_inc_args = [f'-I@contrib_incdir@']
# Contrib depdendency
# This should be used ONLY in cases where you can not otherwise
# form a proper dependency (by using a dependency() or find_library())
# to contribs. It will add the contrib include and library directory
# to the target it is used with.
contrib_dep = declare_dependency(
link_args: '-L' + contrib_libdir,
compile_args: contrib_inc_args)
else
contrib_incdir = []
contrib_libdir = []
contrib_inc_args = []
contrib_dep = dependency('', required: false)
endif
cc = meson.get_compiler('c')
cpp = meson.get_compiler('cpp')
host_system = host_machine.system()
list_inc_dirs = ['.', 'include']
if cc.get_id() == 'msvc' or cc.get_id() == 'clang-cl'
# extra POSIX headers not found in the Windows SDK
list_inc_dirs += 'compat/windows'
endif
if host_system == 'darwin'
add_languages('objc', native: false)
endif
# Rust build system
cargo_bin = find_program('cargo', required: get_option('rust'))
#
# General feature defines
#
vlc_conf_prefix = ''
feature_defines = [
['_GNU_SOURCE', 1], # Enable GNU extensions on systems that have them
]
foreach d : feature_defines
cdata.set(d.get(0), d.get(1))
vlc_conf_prefix = vlc_conf_prefix + '#define @0@ @1@\n'.format(d.get(0), d.get(1))
endforeach
vlc_tests = []
#
# SIMD support
#
subdir('buildsystem/simd_checks')
#
# Check for global dependencies
# These are dependencies needed by libvlc or
# libvlccore and by some modules too.
#
# ATTENTION: Take care to follow the naming convetions:
# - Libraries found with find_lirary() must be named `name_lib`
# - Libraries (or Frameworks) found with dependency() must be
# named `name_dep`
#
# zlib library
z_dep = dependency('zlib', required: false)
# Math library
m_lib = cc.find_library('m', required: false)
# Dynamic library loading library
dl_lib = cc.find_library('dl', required: false)
# iconv library
iconv_dep = dependency('iconv', required: false)
iconv_const_test = '''
#include <stddef.h>
#include <iconv.h>
_Static_assert(_Generic((iconv),
size_t (*)(iconv_t, const char **, size_t *, char **, size_t *) : 1, default: 0),
"Const prototype not matched");
'''
if iconv_dep.found()
cdata.set('HAVE_ICONV', 1)
# Check if iconv() prototype uses const
if cc.compiles(iconv_const_test, name: 'Test iconv() for const-using prototype')
cdata.set('ICONV_CONST', 'const')
else
cdata.set('ICONV_CONST', '')
endif
endif
if host_system == 'darwin'
corefoundation_dep = dependency('CoreFoundation', required: true)
foundation_dep = dependency('Foundation', required: true)
else
corefoundation_dep = []
foundation_dep = []
endif
# Gettext
intl_dep = dependency('intl', required: get_option('nls'))
if intl_dep.found()
cdata.set('HAVE_GETTEXT', 1)
cdata.set('ENABLE_NLS', 1)
subdir('po')
endif
# Domain name i18n support via GNU libidn
idn_dep = dependency('libidn', required: false)
if idn_dep.found()
cdata.set('HAVE_IDN', 1)
endif
# Threads
threads_dep = dependency('threads', required: true)
# Check for X11
if (get_option('x11')
.disable_auto_if(host_system in ['darwin', 'windows'])
.allowed())
x11_dep = dependency('x11', required: get_option('x11'))
else
x11_dep = disabler()
endif
if not x11_dep.found()
cdata.set('X_DISPLAY_MISSING', 1)
endif
#
# Check for headers
#
check_c_headers = [
['stdbit.h'],
['stdckdint.h'],
['arpa/inet.h'],
['threads.h'],
['netinet/tcp.h'],
['search.h'],
['sys/uio.h'],
['sys/socket.h'],
['net/if.h'],
['execinfo.h'],
['features.h'],
['getopt.h'],
['linux/dccp.h'],
['linux/magic.h'],
['netinet/udplite.h'],
['pthread.h'],
['poll.h'],
['sys/auxv.h'],
['sys/eventfd.h'],
['sys/mount.h'],
['sys/shm.h'],
['sys/soundcard.h'],
['valgrind/valgrind.h'],
['X11/Xlib.h'],
['xlocale.h'],
['zlib.h'],
['wordexp.h'],
['GL/wglew.h',
{ 'prefix' : ['#include <windows.h>', '#include <GL/glew.h>'],
'args' : [contrib_inc_args] }],
]
check_cpp_headers = [
['dcomp.h',
{ 'prefix' : ['#include <windows.h>'],
'args' : [contrib_inc_args]}],
]
foreach header : check_c_headers
header_kwargs = header.get(1, {})
# TODO: Once we require meson 1.0, drop the array join here
# See: https://github.com/mesonbuild/meson/pull/11099
if cc.check_header(header[0],
prefix: '\n'.join(header_kwargs.get('prefix', [])),
args: header_kwargs.get('args', []))
cdata.set('HAVE_' + header[0].underscorify().to_upper(), 1)
endif
endforeach
foreach header : check_cpp_headers
header_kwargs = header.get(1, {})
# TODO: Once we require meson 1.0, drop the array join here
# See: https://github.com/mesonbuild/meson/pull/11099
if cpp.check_header(header[0],
prefix: '\n'.join(header_kwargs.get('prefix', [])),
args: header_kwargs.get('args', []))
cdata.set('HAVE_' + header[0].underscorify().to_upper(), 1)
endif
endforeach
if not cdata.has('HAVE_STDBIT_H')
list_inc_dirs += 'compat/stdbit'
endif
if not cdata.has('HAVE_STDCKDINT_H')
list_inc_dirs += 'compat/stdckdint'
endif
vlc_include_dirs = include_directories(list_inc_dirs)
#
# Darwin specific checks
#
if host_system == 'darwin'
# Check if compiling for iOS
have_ios = cc.get_define('TARGET_OS_IPHONE',
prefix: '#include <TargetConditionals.h>') == '1'
# Check if compiling for tvOS
have_tvos = cc.get_define('TARGET_OS_TV',
prefix: '#include <TargetConditionals.h>') == '1'
# If none of the above, assume compiling for macOS
have_osx = not have_ios and not have_tvos
else
have_ios = false
have_tvos = false
have_osx = false
endif
if have_osx
add_project_arguments('-mmacosx-version-min=10.11',
language: ['c', 'cpp', 'objc'])
add_project_link_arguments('-mmacosx-version-min=10.11',
language: ['c', 'cpp', 'objc'])
endif
#
# Windows and MinGW checks
#
have_mingw = false
have_win_desktop = false
have_win_store = false
mingw_libs = []
libcom_cppflags = []
if host_system == 'windows'
# Defines needed for Windows
windows_defines = [
['UNICODE', 1], # Define to 1 for Unicode (Wide Chars) APIs
]
windows_version_test = '''
#ifdef _WIN32_WINNT
# error _WIN32_WINNT already defined
#else
# include <sdkddkver.h>
# if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0601
# error _WIN32_WINNT toolchain default high enough
# endif
#endif
'''
if cc.compiles(windows_version_test, name: 'need _WIN32_WINNT defined to Win7')
windows_defines += [
['_WIN32_WINNT', '0x0601'] # Define for Windows 7 APIs
]
endif
foreach d : windows_defines
cdata.set(d.get(0), d.get(1))
vlc_conf_prefix = vlc_conf_prefix + '#define @0@ @1@\n'.format(d.get(0), d.get(1))
endforeach
# Check for HAVE_PROCESS_MITIGATION_IMAGE_LOAD_POLICY type
if cc.has_type('PROCESS_MITIGATION_IMAGE_LOAD_POLICY', prefix: '#include <winnt.h>')
cdata.set('HAVE_PROCESS_MITIGATION_IMAGE_LOAD_POLICY', 1)
endif
mingw_check = '''
#ifndef __MINGW32__
# error Not compiling with mingw
#endif
'''
# Check if MinGW is used at all
if cc.compiles(mingw_check)
# Check which kind of MinGW
mingw_version_major = cc.get_define('__MINGW64_VERSION_MAJOR',
prefix: '#include <_mingw.h>')
if mingw_version_major == ''
error('Cannot compile with MinGW, use MinGW-w64 >= 6.0 instead.')
endif
# Check that MinGW w64 is at least 6.0
if mingw_version_major.to_int() < 6
error('MinGW-w64 6.0 or higher required!')
endif
have_mingw = true
mingw_version_minor = cc.get_define('__MINGW64_VERSION_MINOR',
prefix: '#include <_mingw.h>')
mingw_version = '@0@.@1@'.format(mingw_version_major, mingw_version_minor)
message('Using MinGW-w64 ' + mingw_version)
# Defines needed for MinGW
mingw_defines = []
ucrt_version_test = '''
#include <crtdefs.h>
#if !(defined(_UCRT) || (__MSVCRT_VERSION__ >= 0x1400) || (__MSVCRT_VERSION__ >= 0xE00 && __MSVCRT_VERSION__ < 0x1000))
# error This is NOT a UCRT build
#endif
'''
if cc.compiles(ucrt_version_test, name: 'compiles with Universal C Runtime')
# for UCRT build we use the standard compatibility define of UCRT
mingw_defines += [
['__USE_MINGW_ANSI_STDIO', 0],
]
else
# Define to force use of MinGW printf
mingw_defines += [
['__USE_MINGW_ANSI_STDIO', 1],
]
endif
foreach d : mingw_defines
cdata.set(d.get(0), d.get(1))
vlc_conf_prefix = vlc_conf_prefix + '#define @0@ @1@\n'.format(d.get(0), d.get(1))
endforeach
# Check for the need to link to the mingwex lib for MinGW-w64 32bit
mingwex_lib = cc.find_library('mingwex', required: false)
if mingwex_lib.found() and not cc.find_library('mingw32', required: false).found()
mingw_libs += mingwex_lib
endif
# TODO: enable when meson 0.63 is required
# add_project_dependencies(mingw_libs, language: ['c', 'cpp'])
# fno-strict-aliasing is necessary for WRL and IID_PPV_ARGS to work safely
# MSVC doesn't have this option but doesn't do pointer aliasing, so it
# should work too
libcom_cppflags += '-fno-strict-aliasing'
if not cpp.has_argument(libcom_cppflags)
error('-fno-strict-aliasing is necessary for Windows C++ modules')
endif
# Check for fnative-struct or mms-bitfields support for MinGW
if cc.has_argument('-mms-bitfields')
add_project_arguments('-mms-bitfields',
language: ['c', 'cpp'])
# Check for the warning flag without "-Wno-", GCC accepts
# -Wno-<anything> for unsupported warnings, which can trigger
# other warnings instead.
if cc.has_argument('-Wincompatible-ms-struct')
add_project_arguments('-Wno-incompatible-ms-struct',
language: ['c', 'cpp'])
endif
elif cc.has_argument('-fnative-struct')
add_project_arguments('-fnative-struct',
language: ['c', 'cpp'])
endif
# DEP, ASLR, NO SEH
add_project_link_arguments('-Wl,--nxcompat', '-Wl,--no-seh', '-Wl,--dynamicbase',
language: ['c', 'cpp'])
endif
# Check if we are building for Windows Store
if get_option('winstore_app')
have_win_store = true
windowsappcompat_lib = cc.find_library('windowsappcompat')
# TODO: enable when meson 0.63 is required
# add_project_dependencies(windowsappcompat_lib, language: ['c', 'cpp'])
else
have_win_desktop = true
endif
endif
add_project_arguments(cc.get_supported_arguments([
'-Wno-deprecated-copy', # Some Qt version are generating tons of warning that cannot be
# avoided so mute them
]), language: ['c', 'cpp', 'objc'])
add_project_arguments(cc.get_supported_arguments([
'-Wextra',
'-Wsign-compare',
'-Wundef',
'-Wpointer-arith',
'-Wvolatile-register-var',
'-Wformat',
'-Wformat-security',
'-Wduplicated-branches',
'-Wduplicated-cond',
]), language: ['c', 'cpp'])
add_project_arguments(cc.get_supported_arguments([
'-Wbad-function-cast',
'-Wwrite-strings',
'-Wmissing-prototypes',
'-Werror-implicit-function-declaration',
'-Winit-self',
'-Wlogical-op',
'-Wshadow=local',
'-Wmultistatement-macros',
'-pipe'
]), language: ['c'])
if get_option('extra_checks')
add_project_arguments(cc.get_supported_arguments([
'-Werror=missing-field-initializers',
'-Werror=format',
'-Werror=return-mismatch'
]), language: ['c', 'cpp'])
add_project_arguments(cc.get_supported_arguments([
'-Werror=incompatible-pointer-types',
'-Werror=restrict',
'-Werror=int-conversion',
'-Werror=implicit-int',
'-Werror=declaration-missing-parameter-type'
]), language: ['c'])
endif
if get_option('branch_protection') \
.require(host_machine.cpu_family() == 'aarch64', error_message: 'Branch protection is only available for AArch64') \
.require(cc.has_argument('-mbranch-protection=standard'), error_message: 'Compiler does not support `-mbranch-protection`') \
.allowed()
add_project_arguments('-mbranch-protection=standard', language: ['c', 'cpp'])
endif
if cc.get_id() not in ['clang-cl']
add_project_arguments(cc.get_supported_arguments([
'-Wall', # too verbose with clang-cl
]), language: ['c', 'cpp'])
endif
add_project_arguments(cc.first_supported_argument(['-Werror-implicit-function-declaration', '-we4013']), language: ['c'])
#
# Check if other libs are needed
#
rt_lib = []
possible_rt_libs = ['rt', 'pthread']
foreach l : possible_rt_libs
possible_rt_lib_lib = cc.find_library(l, required: false)
if possible_rt_lib_lib.found() and \
cc.has_function('clock_nanosleep', dependencies: possible_rt_lib_lib)
rt_lib = possible_rt_lib_lib
break
endif
endforeach
#
# Socket library checks
#
# Check for socket library
socket_libs = cc.find_library('socket', required: false)
# Check for function 'connect' (optionally link with socket lib if it exists)
if not cc.has_function('connect', prefix: vlc_conf_prefix + '#include <sys/socket.h>', dependencies: socket_libs)
if host_system == 'windows'
# If not found and on windows:
socket_libs = []
socket_libs += cc.find_library('iphlpapi', required: true)
socket_libs += cc.find_library('ws2_32', required: true)
endif
endif
# Define some strings for the function check since the required headers
# will differ based on the platform we're building for
if host_system == 'windows'
arpa_inet_h = '#include <ws2tcpip.h>\n#include <windows.h>'
net_if_h = '#include <windows.h>\n#include <iphlpapi.h>'
getpid_h = '#include <process.h>'
swab_h = '#include <stdlib.h>'
else
arpa_inet_h = '#include <arpa/inet.h>'
net_if_h = '#include <net.if.h>'
getpid_h = '#include <unistd.h>'
swab_h = '#include <unistd.h>'
endif
#
# Check for functions
# Entry format: [function, prefix]
# General functions
check_functions = [
['accept4', '#include <sys/socket.h>'],
['dup3', '#include <unistd.h>'],
['qsort_r', '#include <stdlib.h>'],
['fcntl', '#include <fcntl.h>'],
['flock', '#include <sys/file.h>'],
['fstatvfs', '#include <sys/statvfs.h>'],
['fstatat', '#include <sys/stat.h>'],
['fork', '#include <unistd.h>'],
['getmntent_r', '#include <mntent.h>'],
['getpwuid_r', '#include <pwd.h>'],
['isatty', '#include <unistd.h>'],
['isatty', '#include <io.h>'],
['memalign', '#include <malloc.h>'],
['mkostemp', '#include <unistd.h>'],
['mkostemp', '#include <stdlib.h>'],
['mmap', '#include <sys/mman.h>'],
['open_memstream', '#include <stdio.h>'],
['pipe2', '#include <unistd.h>'],
['posix_fadvise', '#include <fcntl.h>'],
['strcoll', '#include <string.h>'],
['wordexp', '#include <wordexp.h>'],
['uselocale', '#include <locale.h>'],
['uselocale', '#include <xlocale.h>'],
['newlocale', '#include <locale.h>'],
['newlocale', '#include <xlocale.h>'],
['setlocale', '#include <locale.h>'],
['getenv', '#include <stdlib.h>'],
['if_nametoindex', net_if_h],
['if_nameindex', net_if_h],
['backtrace', '#include <execinfo.h>'],
['_lock_file', '#include <stdio.h>'],
]
# Linux specific functions
if host_system == 'linux'
check_functions += [
['eventfd', '#include <sys/eventfd.h>'],
['vmsplice', '#include <fcntl.h>'],
['sched_getaffinity', '#include <sched.h>'],
['recvmmsg', '#include <sys/socket.h>'],
['memfd_create', '#include <sys/mman.h>'],
]
endif
# Windows specific functions
if host_system == 'windows'
check_functions += [
['_lock_file', '#include <windows.h>'],
]
endif
foreach f : check_functions
# DO NOT SIMPLIFY this if away by moving the the has_function
# into the cdata.set! There are some functions checked twice
# in different headers, if one is found with one header and
# then not found using the other header, it would overwrite
# the previous value!
if cc.has_function(f[0], prefix: vlc_conf_prefix + f[1], dependencies: [socket_libs])
cdata.set('HAVE_' + f[0].underscorify().to_upper(), 1)
endif
endforeach
# Libcompat functions (if missing, provided in compat)
# Entry format: [function, prefix]
libcompat_functions = [
['aligned_alloc', '#include <stdlib.h>'],
['atof', '#include <stdlib.h>'],
['atoll', '#include <stdlib.h>'],
['dirfd', '#include <dirent.h>'],
['fdopendir', '#include <dirent.h>'],
['flockfile', '#include <stdio.h>'],
['fsync', '#include <unistd.h>'],
['getdelim', '#include <stdio.h>'],
['getpid', getpid_h],
['lfind', '#include <search.h>'],
['lldiv', '#include <stdlib.h>'],
['memrchr', '#include <string.h>'],
['nrand48', '#include <stdlib.h>'],
['poll', '#include <poll.h>'],
['posix_memalign', '#include <stdlib.h>'],
['readv', '#include <sys/uio.h>'],
['recvmsg', '#include <sys/socket.h>'],
['rewind', '#include <stdio.h>'],
['sendmsg', '#include <sys/socket.h>'],
['setenv', '#include <stdlib.h>'],
['strcasecmp', '#include <strings.h>'],
['strcasestr', '#include <string.h>'],
['strdup', '#include <string.h>'],
['strlcpy', '#include <string.h>'],
['strndup', '#include <string.h>'],
['strnlen', '#include <string.h>'],
['strnstr', '#include <string.h>'],
['strsep', '#include <string.h>'],
['strtof', '#include <stdlib.h>'],
['strtok_r', '#include <string.h>'],
['strtoll', '#include <stdlib.h>'],
['swab', swab_h],
['tdestroy', '#include <search.h>'],
['tfind', '#include <search.h>'],
['timegm', '#include <time.h>'],
['timespec_get', '#include <time.h>'],
['gmtime_r', '#include <time.h>'],
['localtime_r', '#include <time.h>'],
['strverscmp', '#include <string.h>'],
['writev', '#include <sys/uio.h>'],
['asprintf', '#include <stdio.h>'],
['vasprintf', '#include <stdio.h>'],
['gettimeofday', '#include <sys/time.h>'],
['clock_gettime', '#include <time.h>'],
['clock_nanosleep', '#include <time.h>'],
['clock_getres', '#include <time.h>'],
['inet_pton', arpa_inet_h],
['inet_ntop', arpa_inet_h],
]
# Linux specific functions
if host_system == 'linux'
libcompat_functions += [
['getauxval', '#include <sys/auxv.h>'],
]
endif
libcompat_sources = []
if have_win_store
libcompat_sources += 'gai_strerror.c'
endif
# Check all functions in libcompat_functions array
foreach f : libcompat_functions
if cc.has_function(f[0], prefix: vlc_conf_prefix + f[1], dependencies: [rt_lib, socket_libs])
cdata.set('HAVE_' + f[0].underscorify().to_upper(), 1)
else
libcompat_sources += f[0] + '.c'
endif
endforeach
# These functions need to be checked with has_header_symbol as
libcompat_functions = [
['realpath', 'stdlib.h'],
]
foreach f : libcompat_functions
if cc.has_header_symbol(f[1], f[0], prefix: vlc_conf_prefix)
cdata.set('HAVE_' + f[0].underscorify().to_upper(), 1)
else
libcompat_sources += f[0] + '.c'
endif
endforeach
# Check for function 'nanf' (optionally link with libm if it exists)
if cc.has_function('nanf', prefix: vlc_conf_prefix + '#include <math.h>', dependencies: m_lib)
cdata.set('HAVE_NANF', 1)
endif
# Check for function 'sincos' (optionally link with libm if it exists)
if cc.has_function('sincos', prefix: vlc_conf_prefix + '#include <math.h>', dependencies: m_lib)
cdata.set('HAVE_SINCOS', 1)
else
libcompat_sources += 'sincos.c'
endif
# Check for function 'fdatasync' (define it to 'fsync' if missing)
if not cc.has_function('fdatasync', prefix: vlc_conf_prefix + '#include <unistd.h>')
cdata.set('fdatasync', 'fsync')
endif
#
# Additional checks
#
# Check which kind of restrict keyword is supported
# Program based on autoconf c.m4
#
# Copyright (C) 2001-2012 Free Software Foundation, Inc.
#
# Written by David MacKenzie, with help from
# Akim Demaille, Paul Eggert,
# Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
# Roland McGrath, Noah Friedman, david d zuhn, and many others.
restrict_test = '''
#define restrict_kw @0@
typedef int * int_ptr;
int foo (int_ptr restrict_kw ip) { return ip[0]; }
int main() {
int s[1];
int * restrict_kw t = s;
t[0] = 0;
return foo(t);
}
'''
# Order is the same as in AC_C_RESTRICT
# Check for __restrict support
if cc.compiles(restrict_test.format('__restrict'), name: 'Test __restrict support')
cdata.set('restrict', '__restrict')
# Check for __restrict__ support
elif cc.compiles(restrict_test.format('__restrict__'), name: 'Test __restrict__ support')
cdata.set('restrict', '__restrict__')
# Check for _Restrict support
elif cc.compiles(restrict_test.format('_Restrict'), name: 'Test _Restrict support')
cdata.set('restrict', '_Restrict')
# Check for restrict support
elif not cc.compiles(restrict_test.format('restrict'), name: 'Test restrict support')
cdata.set('restrict', '')
endif
# Check for C++ typeof support
if cpp.compiles('int a; typeof(a) foo[1];', name: 'Test C++ typeof support')
cdata.set('HAVE_CXX_TYPEOF', 1)
endif
# Check for __attribute__((packed)) support
if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
name: '__attribute__((packed))')
cdata.set('HAVE_ATTRIBUTE_PACKED', 1)
endif
# Check for C11 _Thread_local storage qualifier support
if cc.compiles('_Thread_local int foo = 0;', name: 'Test _Thread_local support')
cdata.set('HAVE_THREAD_LOCAL', 1)
endif
# Check for wrong (non-POSIX) qsort_r prototype
qsort_r_test = '''
#define _GNU_SOURCE
#include <stdlib.h>
_Static_assert(_Generic((qsort_r),
void (*)(void *, size_t, size_t, void *,
int (*)(void *, const void *, const void *)) : 1, default: 0),
"Bad prototype not matched");
'''
if cc.compiles(qsort_r_test, name: 'Test qsort_r non-POSIX prototype')
cdata.set('HAVE_BROKEN_QSORT_R', 1)
endif
# Check for max_align_t type
if cc.has_type('max_align_t', prefix: '#include <stddef.h>')
cdata.set('HAVE_MAX_ALIGN_T', 1)
endif
# Check for struct timespec
if cc.has_type('struct timespec', prefix: '#include <time.h>')
cdata.set('HAVE_STRUCT_TIMESPEC', 1)
endif
# Add -fvisibility=hidden if compiler supports those
add_project_arguments(
cc.get_supported_arguments('-fvisibility=hidden'),
language: ['c'])
# Stack smashing protection (default enabled for optimized builds)
if (get_option('ssp')
.disable_auto_if(get_option('optimization') == '0')
.allowed())
add_project_arguments(
cc.get_supported_arguments('-fstack-protector-strong'),
language: ['c', 'cpp'])
if host_system == 'windows'
# Win32 requires linking to ssp for stack-protection
ssp_test = '''
#include <stdio.h>
int main(void) {
char buf[100];
fgets(buf, sizeof(buf), stdin);
return 0;
}
'''
# Check if linker supports -lssp
if cc.links(ssp_test, args: ['-fstack-protector-strong', '-lssp'],
name: 'linker supports stack protectors')
add_project_link_arguments('-lssp', language: ['c', 'cpp'])
endif
endif
endif
# Check if linker supports -Bsymbolic
symbolic_linkargs = []
if cc.has_link_argument('-Wl,-Bsymbolic')
symbolic_linkargs += '-Wl,-Bsymbolic'
endif
# Check for struct sockaddr_storage type
# Define it to `sockaddr` if missing
have_sockaddr_storage = cc.has_type('struct sockaddr_storage', prefix: '#include <sys/socket.h>')
if not have_sockaddr_storage
have_sockaddr_storage = cc.has_type('struct sockaddr_storage', prefix: '#include <winsock2.h>')
endif
if not have_sockaddr_storage
cdata.set('sockaddr_storage', 'sockaddr')
endif
# Check for struct ss_family type
# Define it to `sa_family` if missing
if not cc.has_type('struct ss_family', prefix: '#include <sys/socket.h>')
cdata.set('ss_family', 'sa_family')
endif
# Check for ssize_t type
# Define it to `ptrdiff_t` if missing
if not cc.has_type('ssize_t', prefix: '#include <sys/types.h>')
cdata.set('ssize_t', 'ptrdiff_t')
cdata.set('SSIZE_MAX', 'PTRDIFF_MAX')
endif
# Check for struct pollfd type
# TODO: Refactor once updating to meson 1.0.0
# which supports prefix arrays.
pollfd_prefix = '#include <sys/types.h>\n'
if cdata.get('HAVE_POLL', 0) == 1
pollfd_prefix += '#include <poll.h>'
elif host_system == 'windows'
pollfd_prefix += '#include <winsock2.h>'
endif
if cc.has_type('struct pollfd', prefix: '\n'.join([vlc_conf_prefix, pollfd_prefix]))
cdata.set('HAVE_STRUCT_POLLFD', 1)
endif
# Check for if_nameindex function and struct
if cc.has_function('if_nameindex', prefix: '#include <net/if.h>')
cdata.set('HAVE_IF_NAMEINDEX', 1)
endif
if cc.has_type('struct if_nameindex', prefix: '#include <net/if.h>')
cdata.set('HAVE_STRUCT_IF_NAMEINDEX', 1)
endif
# Check for locale_t type in C++ locale header
if cpp.has_type('locale_t', prefix: '#include <locale>')
cdata.set('HAVE_CXX_LOCALE_T', 1)
endif
# Check if build machine is big endian
if build_machine.endian() == 'big'
cdata.set('WORDS_BIGENDIAN', 1)
endif
# Define the shared library extension
if host_system == 'windows'
cdata.set_quoted('LIBEXT', '.dll')
elif host_system == 'darwin'
cdata.set_quoted('LIBEXT', '.dylib')
else
cdata.set_quoted('LIBEXT', '.so')
endif
#
# Populate config.h with additional infos
#
cdata.set_quoted('VERSION', vlc_version)
cdata.set_quoted('PACKAGE_VERSION', vlc_version)
cdata.set_quoted('VERSION_MESSAGE', f'@vlc_version@ @vlc_version_codename@')
cdata.set('VERSION_MAJOR', vlc_version_major)
cdata.set('VERSION_MINOR', vlc_version_minor)
cdata.set('VERSION_REVISION', vlc_version_revision)
cdata.set('VERSION_EXTRA', vlc_version_extra)
cdata.set('PACKAGE_VERSION_MAJOR', vlc_version_major)
cdata.set('PACKAGE_VERSION_MINOR', vlc_version_minor)
cdata.set('PACKAGE_VERSION_REVISION', vlc_version_revision)
cdata.set('PACKAGE_VERSION_EXTRA', vlc_version_extra)
cdata.set('PACKAGE_VERSION_DEV', vlc_version_type)
cdata.set('LIBVLC_ABI_MAJOR', libvlc_abi_version_major)
cdata.set('LIBVLC_ABI_MINOR', libvlc_abi_version_minor)
cdata.set('LIBVLC_ABI_MICRO', libvlc_abi_version_micro)
cdata.set_quoted('PACKAGE', vlc_package_name)
cdata.set_quoted('PACKAGE_NAME', vlc_package_name)
cdata.set_quoted('PACKAGE_STRING', f'@vlc_package_name@ @vlc_version@')
cdata.set_quoted('COPYRIGHT_YEARS', vlc_copyright_years)
cdata.set_quoted('COPYRIGHT_MESSAGE', f'Copyright © @vlc_copyright_years@ the VideoLAN team')
# Compiler and build system info
cdata.set_quoted('VLC_COMPILER', cc.get_id() + ' ' + cc.version())
cdata.set_quoted('VLC_COMPILE_BY', '[not implemented with meson]') # TODO
cdata.set_quoted('VLC_COMPILE_HOST', '[not implemented with meson]') # TODO
cdata.set_quoted('CONFIGURE_LINE', '[not implemented with meson]') # TODO
# Paths
prefix_path = get_option('prefix')
vlc_pkg_suffix = meson.project_name().to_lower()
libdir_path = prefix_path / get_option('libdir')
pkglibdir_path = libdir_path / vlc_pkg_suffix
libexecdir_path = prefix_path / get_option('libexecdir')
pkglibexecdir_path = libexecdir_path / vlc_pkg_suffix
sysdatadir_path = prefix_path / get_option('datadir')
pkgdatadir_path = sysdatadir_path / vlc_pkg_suffix
localedir_path = prefix_path / get_option('localedir')
cdata.set_quoted('LIBDIR', libdir_path)
cdata.set_quoted('PKGLIBDIR', pkglibdir_path)
cdata.set_quoted('LIBEXECDIR', libexecdir_path)
cdata.set_quoted('PKGLIBEXECDIR', pkglibexecdir_path)
cdata.set_quoted('SYSDATADIR', sysdatadir_path)
cdata.set_quoted('PKGDATADIR', pkgdatadir_path)
cdata.set_quoted('LOCALEDIR', localedir_path)
# Enable stream outputs
cdata.set('ENABLE_SOUT', get_option('stream_outputs'))
# Enable VLM
if get_option('videolan_manager')
if not get_option('stream_outputs')
error('The VideoLAN manager requires stream outputs.')
endif
cdata.set('ENABLE_VLM', 1)
endif