mirror of
https://gitlab.freedesktop.org/wayland/wayland.git
synced 2026-02-05 04:06:20 -05:00
869d1291a6
C11 has been available for 15 years now, and virtually all reasonable C compilers support it. But we also want to opportunistically use C17 or C23 as they are stricter, which helps us have better code. This also adds test runs for the oldest standard supported. Signed-off-by: Neal Gompa <neal@gompa.dev>
145 lines
3.8 KiB
Meson
145 lines
3.8 KiB
Meson
project(
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'wayland', 'c',
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version: '1.24.90',
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license: 'MIT',
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meson_version: '>= 0.64.0',
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default_options: [
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'warning_level=2',
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'buildtype=debugoptimized',
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'c_std=' + (meson.version().version_compare('>=1.3.0') ? 'c23,c17,c11' : 'c11'),
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]
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)
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fs = import('fs')
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pkgconfig = import('pkgconfig')
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wayland_version = meson.project_version().split('.')
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config_h = configuration_data()
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config_h.set_quoted('PACKAGE', meson.project_name())
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config_h.set_quoted('PACKAGE_VERSION', meson.project_version())
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cc_args = []
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if host_machine.system() not in ['freebsd', 'openbsd']
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cc_args += ['-D_POSIX_C_SOURCE=200809L']
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endif
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add_project_arguments(cc_args, language: 'c')
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compiler_flags = [
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'-Wno-unused-parameter',
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'-Wstrict-prototypes',
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'-Wmissing-prototypes',
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'-fvisibility=hidden',
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]
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cc = meson.get_compiler('c')
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add_project_arguments(
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cc.get_supported_arguments(compiler_flags),
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language: 'c'
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)
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foreach h: [ 'sys/prctl.h', 'sys/procctl.h', 'sys/ucred.h' ]
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config_h.set('HAVE_' + h.underscorify().to_upper(), cc.has_header(h))
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endforeach
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have_funcs = [
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'accept4',
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'mkostemp',
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'posix_fallocate',
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'prctl',
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'memfd_create',
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'mremap',
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'strndup',
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'gettid',
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]
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foreach f: have_funcs
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config_h.set('HAVE_' + f.underscorify().to_upper(), cc.has_function(f))
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endforeach
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config_h.set10('HAVE_XUCRED_CR_PID', cc.has_member('struct xucred', 'cr_pid', prefix : '#include <sys/ucred.h>'))
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have_broken_msg_cmsg_cloexec = false
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if host_machine.system() == 'freebsd'
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have_broken_msg_cmsg_cloexec = not cc.compiles('''
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#include <sys/param.h> /* To get __FreeBSD_version. */
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#if __FreeBSD_version < 1300502 || \
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(__FreeBSD_version >= 1400000 && __FreeBSD_version < 1400006)
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/*
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* FreeBSD had a broken implementation of MSG_CMSG_CLOEXEC between 2015 and
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* 2021. Check if we are compiling against a version that includes the fix
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* (https://cgit.freebsd.org/src/commit/?id=6ceacebdf52211).
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*/
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#error "Broken MSG_CMSG_CLOEXEC"
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#endif
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''', name : 'MSG_CMSG_CLOEXEC works correctly')
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endif
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config_h.set10('HAVE_BROKEN_MSG_CMSG_CLOEXEC', have_broken_msg_cmsg_cloexec)
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if get_option('libraries')
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if host_machine.system() in ['freebsd', 'openbsd']
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# When building for FreeBSD, epoll(7) is provided by a userspace
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# wrapper around kqueue(2).
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epoll_dep = dependency('epoll-shim')
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else
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# Otherwise, assume that epoll(7) is supported natively.
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epoll_dep = []
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endif
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ffi_dep = dependency('libffi')
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decls = [
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{ 'header': 'sys/signalfd.h', 'symbol': 'SFD_CLOEXEC' },
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{ 'header': 'sys/timerfd.h', 'symbol': 'TFD_CLOEXEC' },
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{ 'header': 'time.h', 'symbol': 'CLOCK_MONOTONIC' },
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]
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foreach d: decls
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if not cc.has_header_symbol(d['header'], d['symbol'], dependencies: epoll_dep, args: cc_args)
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error('@0@ is needed to compile Wayland libraries'.format(d['symbol']))
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endif
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endforeach
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rt_dep = []
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if not cc.has_function('clock_gettime', prefix: '#include <time.h>')
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rt_dep = cc.find_library('rt')
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if not cc.has_function('clock_gettime', prefix: '#include <time.h>', dependencies: rt_dep, args: cc_args)
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error('clock_gettime not found')
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endif
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endif
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endif
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configure_file(
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output: 'config.h',
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configuration: config_h,
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)
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wayland_protocol_xml = files('protocol/wayland.xml')
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root_inc = include_directories('.')
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protocol_inc = include_directories('protocol')
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src_inc = include_directories('src')
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subdir('src')
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if get_option('libraries')
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subdir('cursor')
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subdir('egl')
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endif
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if get_option('tests')
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subdir('tests')
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endif
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if get_option('documentation')
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subdir('doc')
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endif
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if get_option('scanner')
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install_data([
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'wayland-scanner.mk',
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'protocol/wayland.xml',
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'protocol/wayland.dtd',
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],
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install_dir: join_paths(get_option('prefix'), get_option('datadir'), 'wayland'),
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)
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install_data(
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[ 'wayland-scanner.m4' ],
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install_dir: join_paths(get_option('prefix'), get_option('datadir'), 'aclocal'),
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)
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endif
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