meson.build

Tue, 21 Feb 2023 21:43:14 -0600

author
Gary Kramlich <grim@reaperworld.com>
date
Tue, 21 Feb 2023 21:43:14 -0600
changeset 42073
31532581724a
parent 42033
a03f321889e4
child 42081
16ef7725e459
permissions
-rw-r--r--

Set our global C standard to C17 and warning_level to 2

Testing Done:
I compiled this on Debian unstable, FreeBSD 13 amd64 and i386, OpenBSD 7.2
amd64 and i386, RaspberryPI OS unstable, Windows 11, and macOS Monterey and all
compiled without issue. As for MSVC, support was added for C11 and C17 in
Visual Studio 2019 so we should be fine there as well.

Reviewed at https://reviews.imfreedom.org/r/2248/

# UPDATING VERSION NUMBERS FOR RELEASES
#
# The version number is:
#   <major>.<minor>.<micro><extra>
#
# micro += 1
#
# If any functions have been added to libpurple, Pidgin, or Finch:
#   micro = 0
#   minor += 1
#
# If backwards compatibility has been broken in libpurple, Pidgin, or Finch:
#   micro = 0
#   minor = 0
#   major += 1
#   purple_soversion += 1
#
# extra should be similar to one of the following:
#   For beta releases:          '-beta2'
#   For code under development: '-devel'
#   For production releases:    ''
#
project('pidgin', 'c',
    version : '3.0.0-devel',
    meson_version : '>=0.58.0',
    default_options : ['c_std=c17', 'warning_level=2'])
purple_soversion = 0

parts = meson.project_version().split('-')
if parts.length() > 1
  purple_extra_version = parts[1]
else
  purple_extra_version = ''
endif

parts = parts[0].split('.')
purple_major_version = parts[0]
purple_minor_version = parts[1]
purple_micro_version = parts[2]

GETTEXT_PACKAGE=meson.project_name()
find_program('gettext')
find_program('xgettext')

add_project_arguments([
	'-DHAVE_CONFIG_H=1',
	'-DVERSION="@0@"'.format(meson.project_version()),
	'-DDISPLAY_VERSION="@0@"'.format(meson.project_version()),
	'-DPURPLE_WEBSITE="https://pidgin.im/"',
	f'-DGETTEXT_PACKAGE="@GETTEXT_PACKAGE@"'],
	language : 'c')
conf = configuration_data()
man_conf = configuration_data()
version_conf = configuration_data()

conf.set_quoted('GETTEXT_PACKAGE', GETTEXT_PACKAGE)
conf.set_quoted('PACKAGE', meson.project_name())
conf.set_quoted('PACKAGE_NAME', meson.project_name())
conf.set_quoted('VERSION', meson.project_version())
conf.set_quoted('DISPLAY_VERSION', meson.project_version())

version_conf.set('PURPLE_MAJOR_VERSION', purple_major_version)
version_conf.set('PURPLE_MINOR_VERSION', purple_minor_version)
version_conf.set('PURPLE_MICRO_VERSION', purple_micro_version)
version_conf.set('PURPLE_EXTRA_VERSION', purple_extra_version)
version_conf.set('PURPLE_VERSION', meson.project_version())
version_conf.set('PURPLE_API_VERSION', purple_soversion)

PURPLE_LIB_VERSION = f'@purple_soversion@.@purple_minor_version@.@purple_micro_version@'

package_revision = vcs_tag(
    input : 'package_revision.h.in',
    output : 'package_revision.h',
    fallback : meson.project_version())

# For running `meson devenv`.
devenv = environment()

# For man pages.
man_conf.set('VERSION', meson.project_version())
man_conf.set('prefix', get_option('prefix'))

# Used for pkg-config files.
pkgconfig = import('pkgconfig')

# Storing build arguments
meson.add_postconf_script('mkmesonconf.py')
conf.set('HAVE_MESON_CONFIG', true)

# Checks for programs.
compiler = meson.get_compiler('c')

# Check for Sun compiler
SUNCC = compiler.compiles('void main() {__SUNPRO_C;};')

# Check for Win32
if host_machine.system() == 'windows'
	windows = import('windows')

	IS_WIN32 = true
	ws2_32 = compiler.find_library('ws2_32')
	dnsapi = compiler.find_library('dnsapi')
	if build_machine.system() != 'windows'
		conf.set('IS_WIN32_CROSS_COMPILED', true)
	endif
	conf.set('WIN32_LEAN_AND_MEAN', true)

	conf.set('LIBPIDGIN_DLL_NAMEW',
	    f'L"libpidgin3-@purple_soversion@.dll"')
else
	IS_WIN32 = false
	ws2_32 = []
	dnsapi = []
endif

# Checks for header files.
conf.set('HAVE_UNISTD_H', compiler.has_header('unistd.h'))

# Checks for typedefs, structures, and compiler characteristics.
time_t_size = compiler.sizeof('time_t',
    prefix : '''
#include <stdio.h>
#include <time.h>
''')
conf.set('SIZEOF_TIME_T', time_t_size)

# Check for directories
if IS_WIN32
	foreach dir : ['bin', 'lib', 'data', 'sysconf', 'locale']
		path = get_option('prefix') / get_option(dir + 'dir')
		conf.set_quoted('WIN32_FHS_@0@DIR'.format(dir.to_upper()), path)
	endforeach

	conf.set('PURPLE_LIBDIR',
		 f'wpurple_lib_dir("purple-@purple_major_version@")')
	conf.set('PIDGIN_LIBDIR',
		 f'wpurple_lib_dir("pidgin-@purple_major_version@")')
	conf.set('FINCH_LIBDIR',
		 f'wpurple_lib_dir("finch-@purple_major_version@")')

	conf.set('PURPLE_DATADIR', 'wpurple_data_dir()')
	conf.set('PURPLE_SYSCONFDIR', 'wpurple_sysconf_dir()')
	conf.set('PURPLE_LOCALEDIR', 'wpurple_locale_dir()')
else
	foreach dir : ['data', 'sysconf', 'locale']
		path = get_option('prefix') / get_option(dir + 'dir')
		conf.set_quoted('PURPLE_@0@DIR'.format(dir.to_upper()), path)
	endforeach

	common_libdir = get_option('prefix') / get_option('libdir')
	conf.set_quoted('PURPLE_LIBDIR',
	                common_libdir / f'purple-@purple_major_version@')
	conf.set_quoted('PIDGIN_LIBDIR',
	                common_libdir / f'pidgin-@purple_major_version@')
	conf.set_quoted('FINCH_LIBDIR',
	                common_libdir / f'finch-@purple_major_version@')
endif

abslibdir = get_option('prefix') / get_option('libdir')
PURPLE_PLUGINDIR = abslibdir / f'purple-@purple_major_version@'
conf.set_quoted('PURPLE_PLUGINDIR', PURPLE_PLUGINDIR)
PIDGIN_PLUGINDIR = abslibdir / f'pidgin-@purple_major_version@'
conf.set_quoted('PIDGIN_PLUGINDIR', PIDGIN_PLUGINDIR)
FINCH_PLUGINDIR = abslibdir / f'finch-@purple_major_version@'
conf.set_quoted('FINCH_PLUGINDIR', FINCH_PLUGINDIR)

# Check for socklen_t (in Unix98)
if IS_WIN32
	socket_header = 'ws2tcpip.h'
else
	socket_header = 'sys/socket.h'
endif
if not compiler.has_header_symbol(socket_header, 'socklen_t')
	code = '''
#include <sys/types.h>
#include <@0@>
int accept(int, struct sockaddr *, size_t *);
int main() {}
'''.format(socket_header)
	if compiler.compiles(code, name : 'socklen_t is size_t')
		conf.set('socklen_t', 'size_t')
	else
		conf.set('socklen_t', 'int')
	endif
endif

# Some systems do not have sa_len field for struct sockaddr.
conf.set('HAVE_STRUCT_SOCKADDR_SA_LEN',
    compiler.has_member('struct sockaddr', 'sa_len',
        prefix : f'#include <@socket_header@>'))

# Windows and Haiku do not use libm for the math functions, they are part
# of the C library
math = compiler.find_library('m', required: false)

IOKIT = []
if host_machine.system() == 'darwin'
	IOKIT = dependency('appleframeworks',
	                   modules : ['IOKit', 'CoreFoundation'])

	conf.set('HAVE_IOKIT', true)
endif

#######################################################################
# Check for GLib (required)
#######################################################################
# Once we require >= 2.74.0, remove the hack in the if(TRUE) block in
# libpurple/core.c.
glib = dependency('glib-2.0', version : '>= 2.70.0')
gio = dependency('gio-2.0')
gobject = dependency('gobject-2.0')
gthread = dependency('gthread-2.0')
gnome = import('gnome')

add_project_arguments(
	'-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_70',
	'-DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_70',
	language : 'c',)

#######################################################################
# Check for gdk-pixbuf (required)
#######################################################################
gdk_pixbuf = dependency('gdk-pixbuf-2.0')

#######################################################################
# Check for GObject Introspection
#######################################################################
if get_option('introspection')
	enable_introspection = dependency('gobject-introspection-1.0', version : '>= 1.39.0').found()
else
	enable_introspection = false
endif
conf.set('ENABLE_INTROSPECTION', enable_introspection)

#######################################################################
# Check Pidgin dependencies
#######################################################################
if get_option('gtkui')
	gtk = dependency('gtk4', version : '>= 4.6.0')
	libadwaita = dependency('libadwaita-1', version : '>= 1.2')

	talkatu_dep = dependency('talkatu',
		version: '>=0.1.0',
		fallback: ['talkatu', 'talkatu_dep'])
endif	# GTK

ENABLE_GTK = get_option('gtkui')


#######################################################################
# Check if we should compile with X support
#######################################################################
if IS_WIN32
	x11 = disabler()
else
	x11 = dependency('x11', required : get_option('x'))
endif
conf.set('HAVE_X11', x11.found())

#######################################################################
# Check for LibXML2 (required)
#######################################################################
libxml = dependency('libxml-2.0', version : '>= 2.6.0')
if libxml.version().version_compare('<2.6.18')
	message('Versions of libxml2 < 2.6.18 may contain bugs that could cause XMPP messages to be discarded.')
endif

#######################################################################
# Check for JSON-GLib (required)
#######################################################################

json = dependency('json-glib-1.0', version : '>= 0.14.0')

######################################################################
# Check for libsoup (required)
#######################################################################

libsoup = dependency('libsoup-3.0', version : '>= 3')
add_project_arguments(
	'-DSOUP_VERSION_MIN_REQUIRED=SOUP_VERSION_3_0',
	'-DSOUP_VERSION_MAX_ALLOWED=SOUP_VERSION_3_0',
	language : 'c')

#######################################################################
# Check for sqlite3 (required)
#######################################################################
sqlite3 = dependency('sqlite3', version : '>= 3.27.0')

#######################################################################
# Check for GStreamer
#######################################################################

gstreamer = dependency('gstreamer-1.0', version : '>=1.14')

#######################################################################
# Check for Raw data streams support in Farstream
#######################################################################
gstreamer_app = dependency('gstreamer-app-1.0')

#######################################################################
# Check for Native Avahi headers (for Bonjour)
#######################################################################

if IS_WIN32
	# Just keep enabled.
	enable_avahi = get_option('avahi').enabled() or get_option('avahi').auto()
	avahi = []
else
	# Attempt to autodetect Avahi
	avahi_client = dependency('avahi-client', required : get_option('avahi'))
	avahi_glib = dependency('avahi-glib', required : get_option('avahi'))
	avahi = [avahi_client, avahi_glib]
	enable_avahi = avahi_client.found() and avahi_glib.found()
endif

#######################################################################
# Check for Gadu-Gadu protocol library (libgadu)
#######################################################################

libgadu = dependency('libgadu', version : '>= 1.12.0', required : get_option('libgadu'))

if libgadu.found()
	if not compiler.has_function('gg_is_gpl_compliant', dependencies : libgadu)
		if get_option('libgadu').auto()
			libgadu = disabler()
		else
			message('''
libgadu is not compatible with the GPL when compiled with OpenSSL support.

To link against libgadu, please recompile it using:
./configure --with-openssl=no
Then rerun this Meson build
			''')
		endif
	endif
endif


DEFAULT_PRPLS = ['bonjour', 'demo', 'facebook', 'gg', 'irc', 'ircv3', 'jabber']

dynamic_list = get_option('dynamic-prpls').split(',')
if dynamic_list == ['all']
	dynamic_list = DEFAULT_PRPLS
endif
DYNAMIC_PRPLS = []
foreach prpl : dynamic_list
	if prpl == ''
		# The list was empty; do nothing.
	elif prpl == 'bonjour' and not enable_avahi
		# Do nothing.
	elif prpl == 'gg' and not libgadu.found()
		# Do nothing.
	else
		DYNAMIC_PRPLS += [prpl]
	endif
endforeach

DYNAMIC_BONJOUR = DYNAMIC_PRPLS.contains('bonjour')
DYNAMIC_DEMO = DYNAMIC_PRPLS.contains('demo')
DYNAMIC_FACEBOOK = DYNAMIC_PRPLS.contains('facebook')
DYNAMIC_GG  = DYNAMIC_PRPLS.contains('gg')
DYNAMIC_IRC = DYNAMIC_PRPLS.contains('irc')
DYNAMIC_IRCV3 = DYNAMIC_PRPLS.contains('ircv3')
DYNAMIC_JABBER = DYNAMIC_PRPLS.contains('jabber')

conf.set('HAVE_SYS_UTSNAME_H',
    compiler.has_header('sys/utsname.h'))
conf.set('HAVE_UNAME',
    compiler.has_function('uname'))


add_project_arguments(
    '-DPURPLE_DISABLE_DEPRECATED',
    '-DPIDGIN_DISABLE_DEPRECATED',
    '-DFINCH_DISABLE_DEPRECATED',
    '-DGNT_DISABLE_DEPRECATED',
    language : 'c')
if get_option('buildtype') != 'plain' and compiler.get_id() == 'gcc'
	# We enable -Wall later.
	# If it's set after the warning CFLAGS in the compiler invocation, it counteracts the -Wno... flags.
	# This leads to warnings we don't want.
#	CFLAGS=`echo $CFLAGS |$sedpath 's/-Wall//'`

	# ENABLE WARNINGS SUPPORTED BY THE VERSION OF GCC IN USE
	#
	# Future Possibilities
	#
	# Consider adding -Wbad-function-cast.
	#	This leads to spurious warnings using GPOINTER_TO_INT(), et al. directly on a function call.
	#		We'd need an intermediate variable.
	#
	foreach newflag : [
			'-Waggregate-return',
			'-Wcast-align',
			'-Wdeclaration-after-statement',
			'-Wendif-labels',
			'-Werror-implicit-function-declaration',
			'-Wextra -Wno-unused-parameter',
			'-Wformat',
			'-Wformat-security',
			'-Werror=format-security',
			'-Winit-self',
			'-Wmissing-declarations',
			'-Wmissing-noreturn',
			'-Wmissing-prototypes',
			'-Wpointer-arith',
			'-Wfloat-equal',
			'-Wundef']
		if compiler.has_argument(newflag)
			add_project_arguments(newflag, language : 'c')
		endif
	endforeach
endif
if get_option('buildtype') != 'plain' and SUNCC
	add_project_arguments('-features=extensions', language : 'c')
endif

pidgin3path = find_program('pidgin3', required : false)

#######################################################################
# Check for Unity and Messaging Menu
# Remove when Ubuntu 16.04 is EOL
#######################################################################
UNITY = [
	dependency('unity', version : '>= 6.8', required : get_option('unity-integration')),
	dependency('messaging-menu', version : '>= 12.10', required : get_option('unity-integration'))
]
enable_unity = UNITY[0].found() and UNITY[1].found()
if enable_unity
	conf.set('USES_MM_CHAT_SECTION', 'X-MessagingMenu-UsesChatSection=true')
else
	conf.set('USES_MM_CHAT_SECTION', '')
endif

#######################################################################
# Check for Secret Service headers
#######################################################################

if IS_WIN32
	libsecret = disabler()
else
	libsecret = dependency('libsecret-1', required : get_option('libsecret'))
endif

#######################################################################
# Check for KWallet headers
#######################################################################

if IS_WIN32 or not add_languages('cpp', required : get_option('kwallet'), native: false)
	kwallet = disabler()
else
	# Use C++ compiler
	cxx_compiler = meson.get_compiler('cpp')
	add_project_arguments([
		'-DHAVE_CONFIG_H=1',
		'-DDISPLAY_VERSION="@0@"'.format(meson.project_version()),
		'-DPURPLE_WEBSITE="https://pidgin.im/"',
		f'-DGETTEXT_PACKAGE="@GETTEXT_PACKAGE@"'],
		language : 'cpp')

	qt5 = import('qt5')

	qt5_dep = dependency('qt5', modules: ['Core'], required : get_option('kwallet'))

	kwallet = dependency('KF5Wallet', required : get_option('kwallet'))
endif

#######################################################################
# Check for GPlugin
#######################################################################
gplugin_version = ['>=0.39.0', '<0.40.0']
gplugin_dep = dependency('gplugin',
	version : gplugin_version,
	fallback : ['gplugin', 'gplugin_dep'])

if get_option('gtkui')
	gplugin_gtk_dep = dependency('gplugin-gtk4',
		version : gplugin_version,
		fallback : ['gplugin-gtk4', 'gplugin_gtk4_dep'])
endif

#######################################################################
# Check for Cyrus-SASL (for xmpp/irc)
#######################################################################
sasl = dependency('libsasl2', version : '>= 2.0')

gsasl = dependency('libgsasl', version : '>= 1.8.0')

#AC_MSG_CHECKING(for me pot o' gold)
#AC_MSG_RESULT(no)

#######################################################################
# Documentation
#######################################################################

if get_option('doc') and not get_option('introspection')
    error('Documentation requires GObject Introspection.')
endif

gidocgen_dep = dependency(
    'gi-docgen', version: '>= 2021.1',
    fallback: ['gi-docgen', 'dummy_dep'],
    required: get_option('doc')
)

gidocgen = find_program('gi-docgen', required : get_option('doc'))
docs_dir = get_option('prefix') / get_option('datadir') / 'doc'

#######################################################################
# Random Stuff
#######################################################################
if ['debug', 'debugoptimize'].contains(get_option('buildtype'))
	enable_debug = true
else
	enable_debug = get_option('console-logging')
endif
conf.set('DEBUG', enable_debug)

# So that config.h may be found.
toplevel_inc = include_directories('.')

subdir('libpurple')
subdir('purple-history')
subdir('finch')
subdir('pidgin')
subdir('doc')
subdir('po')

configure_file(output : 'config.h',
    configuration : conf)

config_home = get_option('devenv-config-dir')
if config_home == ''
	config_home = meson.global_build_root() / 'config'
endif
devenv.set('XDG_CONFIG_HOME', config_home)

meson.add_devenv(devenv)

summary({
    'prefix': get_option('prefix'),
    'bindir': get_option('bindir'),
    'libdir': get_option('libdir'),
    'datadir': get_option('datadir'),
}, section : 'Directories')

# TODO: Remove `.found()` once https://github.com/mesonbuild/meson/pull/10949
# is merged and in a release that we require.
summary({
    'GTK': get_option('gtkui'),
    'console': enable_consoleui,
    'X11 support': x11.found(),
}, section: 'User Interfaces', bool_yn: true)

summary({
    'Dynamic protocols': DYNAMIC_PRPLS,
    'Cyrus SASL support (IRC and XMPP)': sasl,
}, section: 'Protocol Support', bool_yn: true, list_sep: ', ')

# TODO: Remove `.found()` once https://github.com/mesonbuild/meson/pull/10949
# is merged and in a release that we require.
summary({
    'KWallet credential provider': kwallet.found(),
    'libsecret credential provider': libsecret.found(),
    'Unity integration': enable_unity,
}, section: 'Plugin support', bool_yn: true)

summary({
    'Enable Introspection': enable_introspection,
    'Generate documentation': get_option('doc'),
    'Has you': true,
    'Print debugging messages': enable_debug,
}, section: 'Miscellaneous', bool_yn: true)

if pidgin3path.found()
    summary('You have an old copy of pidgin3 at', pidgin3path.full_path(),
            section: 'Warnings')
endif

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