project('gdk-pixbuf', 'c',
version: '2.36.10',
license: 'LGPLv2.1+',
default_options: [
'buildtype=debugoptimized',
'warning_level=1',
'c_std=c99',
],
meson_version: '>= 0.40.1')
add_project_arguments([ '-D_POSIX_C_SOURCE', '-D_DEFAULT_SOURCE' ], language: 'c')
cc = meson.get_compiler('c')
host_system = host_machine.system()
# Versioning
gdk_pixbuf_version = meson.project_version()
version_arr = gdk_pixbuf_version.split('.')
gdk_pixbuf_version_major = version_arr[0].to_int()
gdk_pixbuf_version_minor = version_arr[1].to_int()
gdk_pixbuf_version_micro = version_arr[2].to_int()
gdk_pixbuf_api_version = '2.0'
gdk_pixbuf_binary_version = '2.10.0'
gdk_pixbuf_api_name = '@0@-@1@'.format(meson.project_name(), gdk_pixbuf_api_version)
if gdk_pixbuf_version_minor.is_odd()
gdk_pixbuf_interface_age = 0
else
gdk_pixbuf_interface_age = gdk_pixbuf_version_micro
endif
gdk_pixbuf_binary_age = 100 * gdk_pixbuf_version_minor + gdk_pixbuf_version_micro
# maintaining compatibility with the previous libtool versioning
# current = binary - interface
# revision = interface
soversion = 0
current = gdk_pixbuf_binary_age - gdk_pixbuf_interface_age
revision = gdk_pixbuf_interface_age
libversion = '@0@.@1@.@2@'.format(soversion, current, revision)
age = gdk_pixbuf_binary_age - gdk_pixbuf_interface_age
current_minus_age = current - age
# Paths
gdk_pixbuf_prefix = get_option('prefix')
gdk_pixbuf_libdir = join_paths(gdk_pixbuf_prefix, get_option('libdir'))
gdk_pixbuf_bindir = join_paths(gdk_pixbuf_prefix, get_option('bindir'))
gdk_pixbuf_includedir = join_paths(gdk_pixbuf_prefix, get_option('includedir'))
gdk_pixbuf_datadir = join_paths(gdk_pixbuf_prefix, get_option('datadir'))
gdk_pixbuf_mandir = join_paths(gdk_pixbuf_prefix, get_option('mandir'))
gdk_pixbuf_localedir = join_paths(gdk_pixbuf_prefix, get_option('localedir'))
gdk_pixbuf_libexecdir = join_paths(gdk_pixbuf_prefix, get_option('libexecdir'))
gdk_pixbuf_loaderdir = join_paths(gdk_pixbuf_libdir, 'gdk-pixbuf-@0@/@1@/loaders'.format(gdk_pixbuf_api_version, gdk_pixbuf_binary_version))
# Dependencies
glib_req_version = '>= 2.38.0'
gio_dep = dependency('gio-2.0', version: glib_req_version)
# Configurations
gdk_pixbuf_conf = configuration_data()
check_headers = [
'unistd.h',
'sys/resource.h',
'sys/time.h'
]
foreach h: check_headers
if cc.has_header(h)
gdk_pixbuf_conf.set('HAVE_' + h.underscorify().to_upper(), 1)
endif
endforeach
# Look for the math library first, since we use it to test for round() and lrint()
mathlib_dep = cc.find_library('m', required: false)
# XXX: Remove the checks for round() and lrint() once GDK-Pixbuf is declared C99
if cc.has_function('round', dependencies: mathlib_dep)
gdk_pixbuf_conf.set('HAVE_ROUND', 1)
endif
if cc.has_function('lrint', dependencies: mathlib_dep)
gdk_pixbuf_conf.set('HAVE_LRINT', 1)
endif
# We use links() because sigsetjmp() is often a macro hidden behind other macros
gdk_pixbuf_conf.set('HAVE_SIGSETJMP',
cc.links('''#define _POSIX_SOURCE
#include <setjmp.h>
int main (void) {
sigjmp_buf env;
sigsetjmp (env, 0);
return 0;
}''', name: 'sigsetjmp'))
# Common compiler and linker flags
common_cflags = []
common_ldflags = []
if cc.get_id() == 'msvc'
# For Visual Studio, just force-include msvc_reommended_pragmas.h
# so that we silence unwanted noise and track potential issues
test_cflags = []
add_project_arguments([ '-FImsvc_recommended_pragmas.h' ], language: 'c')
elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
test_cflags = [
'-Wpointer-arith',
'-Wformat=2',
'-Wstrict-prototypes',
'-Wnested-externs',
'-Wold-style-definition',
'-Wdeclaration-after-statement',
'-Wunused',
'-Wcast-align',
'-Wmissing-noreturn',
'-Wmissing-format-attribute',
'-Wlogical-op',
'-fno-strict-aliasing',
'-Wno-int-conversion',
'-Wno-uninitialized',
'-Wno-discarded-qualifiers',
'-Werror=implicit',
'-Werror=nonnull',
'-Werror=init-self',
'-Werror=main',
'-Werror=missing-braces',
'-Werror=sequence-point',
'-Werror=return-type',
'-Werror=trigraphs',
'-Werror=array-bounds',
'-Werror=write-strings',
'-Werror=address',
'-Werror=int-to-pointer-cast',
'-Werror=pointer-to-int-cast',
'-Werror=empty-body',
]
# Ensure we have the correct bit packing on Windows
if host_system == 'windows'
test_cflags += '-mms-bitfields'
endif
else
test_cflags = []
endif
# Symbol visibility
if get_option('default_library') != 'static'
if host_system == 'windows'
gdk_pixbuf_conf.set('DLL_EXPORT', true)
gdk_pixbuf_conf.set('_GDK_PIXBUF_EXTERN', '__declspec(dllexport) extern')
if cc.get_id() != 'msvc'
test_cflags += ['-fvisibility=hidden']
endif
else
gdk_pixbuf_conf.set('_GDK_PIXBUF_EXTERN', '__attribute__((visibility("default"))) extern')
test_cflags += ['-fvisibility=hidden']
endif
endif
foreach cflag: test_cflags
if cc.has_argument(cflag)
common_cflags += cflag
endif
endforeach
# Linker flags
if host_machine.system() == 'linux'
ldflag_prog = 'int main (void) { return 0; }'
foreach ldflag: [ '-Wl,-Bsymbolic', '-Wl,-z,relro', '-Wl,-z,now', ]
if cc.links(ldflag_prog, args: ldflag, name: 'using @0@'.format(ldflag))
common_ldflags += ldflag
endif
endforeach
endif
# Maintain compatibility with autotools on macOS
if host_machine.system() == 'darwin'
common_ldflags += [ '-compatibility_version 1', '-current_version 1.0', ]
endif
# Dependencies
gobject_dep = dependency('gobject-2.0', version: glib_req_version)
gmodule_dep = dependency('gmodule-no-export-2.0')
gio_dep = dependency('gio-2.0')
# On non-Windows/macOS systems we always required shared-mime-info and GIO
if host_system != 'windows' and host_system != 'darwin'
shared_mime_dep = dependency('shared-mime-info')
gdk_pixbuf_conf.set('GDK_PIXBUF_USE_GIO_MIME', 1)
else
shared_mime_dep = []
endif
gdk_pixbuf_deps = [ mathlib_dep, gobject_dep, gmodule_dep, gio_dep, shared_mime_dep ]
# Check if we can build shared modules
build_modules = gmodule_dep.get_pkgconfig_variable('gmodule_supported') == 'true'
gdk_pixbuf_conf.set10('USE_GMODULE', build_modules)
# Check which loaders should be built into gdk-pixbuf
builtin_loaders = get_option('builtin_loaders').split(',')
# If 'all' is specified for builtin_loaders, build all
# buildable loaders into gdk-pixbuf
builtin_all_loaders = false
if builtin_loaders == [ 'all' ]
builtin_all_loaders = true
endif
# Loader dependencies
enabled_loaders = []
loaders_deps = []
if get_option('enable_png')
# We have a vast selection of libpng versions to choose from
foreach png: [ 'libpng16', 'libpng15', 'libpng14', 'libpng13', 'libpng12', 'libpng10' ]
if not enabled_loaders.contains('png')
png_dep = dependency(png, required: false)
if png_dep.found()
enabled_loaders += 'png'
loaders_deps += png_dep
endif
endif
endforeach
if not enabled_loaders.contains('png')
if cc.get_id() == 'msvc' and cc.has_header('png.h')
# MSVC: First look for the DLL + import .lib build of libpng,
# which is normally libpngxx.lib, when libpng's pkg-config can't
# be found, which is quite normal on MSVC.
foreach png: [ 'libpng16', 'libpng15', 'libpng14', 'libpng12', 'libpng13', 'libpng10' ]
if not enabled_loaders.contains('png')
png_dep = cc.find_library(png, required: false)
if png_dep.found()
enabled_loaders += 'png'
loaders_deps += png_dep
endif
endif
endforeach
# If we still can't find libpng, try looking for the static libpng.lib,
# which means we need to ensure we have the static zlib .lib as well
if not enabled_loaders.contains('png')
png_dep = cc.find_library('libpng', required: false)
zlib_dep = cc.find_library('zlib', required: false)
if png_dep.found() and zlib_dep.found()
enabled_loaders += 'png'
loaders_deps += [ png_dep, zlib_dep ]
endif
endif
endif
endif
endif
# On Windows, check whether we are building the native Windows loaders
# (it is an "all-or-nothing" option for BMP, EMF, GIF, ICO, JPEG, TIFF and WMF)
# Note that we currently do not use the native Windows loaders to handle PNG and
# JPEG2000 images
if host_system == 'windows'
enable_native_windows_loaders = get_option('enable_native_windows_loaders')
else
enable_native_windows_loaders = false
endif
if enable_native_windows_loaders
loaders_deps += cc.find_library('gdiplus')
loaders_deps += cc.find_library('ole32')
enabled_loaders += 'gdiplus'
endif
# Don't check and build the jpeg loader if enable_native_windows_loaders is true
if get_option('enable_jpeg') and not enable_native_windows_loaders
if cc.has_header('jpeglib.h')
jpeg_dep = cc.find_library('jpeg', required: false)
if cc.get_id() == 'msvc' and not jpeg_dep.found()
# The IJG JPEG library builds the .lib file as libjpeg.lib in its MSVC build system,
# so look for it as well when jpeg.lib cannot be found
jpeg_dep = cc.find_library('libjpeg', required: false)
endif
if jpeg_dep.found() and cc.has_function('jpeg_destroy_decompress', dependencies: jpeg_dep)
enabled_loaders += 'jpeg'
loaders_deps += jpeg_dep
gdk_pixbuf_conf.set('HAVE_PROGRESSIVE_JPEG',
cc.has_function('jpeg_simple_progression', dependencies: jpeg_dep))
endif
endif
endif
# Don't check and build the tiff loader if enable_native_windows_loaders is true
if get_option('enable_tiff') and not enable_native_windows_loaders
tiff_dep = dependency('libtiff-4', required: false)
if not tiff_dep.found()
# Fallback when no pkg-config file is found for libtiff on MSVC, which is quite normal
if cc.get_id() == 'msvc' and cc.has_header('tiff.h')
# First look for the DLL builds of libtiff, then the static builds
tiff_dep = cc.find_library('libtiff_i', required: false)
if not tiff_dep.found()
# For the static lib, zlib and libjpeg .lib's have been looked for first, and
# they are optional for libtiff
tiff_dep = cc.find_library('libtiff', required: false)
endif
endif
endif
if tiff_dep.found()
enabled_loaders += 'tiff'
loaders_deps += tiff_dep
endif
endif
jasper_extra_cflags = []
if get_option('enable_jasper')
has_jasper_header = false
if cc.get_id() == 'msvc'
# We must define JAS_WIN_MSVC_BUILD before including jasper/jasper.h on MSVC
jasper_msvc_macro = 'JAS_WIN_MSVC_BUILD'
has_jasper_header = cc.has_header('jasper/jasper.h', prefix: '#define @0@'.format(jasper_msvc_macro))
jasper_extra_cflags = [ '-D@0@'.format(jasper_msvc_macro) ]
else
has_jasper_header = cc.has_header('jasper/jasper.h')
endif
if has_jasper_header
jasper_dep = cc.find_library('jasper', required: false)
if not jasper_dep.found()
if cc.get_id() == 'msvc'
# on MSVC, we need to look for libjasper.lib if jasper.lib is not found,
# which corresponds to what libjasper's MSVC projects produce
jasper_dep = cc.find_library('libjasper', required: false)
endif
endif
if jasper_dep.found() and cc.has_function('jas_init', dependencies: jasper_dep)
enabled_loaders += 'jasper'
loaders_deps += jasper_dep
endif
endif
endif
# Determine whether we enable application bundle relocation support, and we use
# this always on Windows
if host_system == 'windows'
relocatable = true
else
relocatable = get_option('enable_relocatable')
endif
if relocatable
add_project_arguments([ '-DGDK_PIXBUF_RELOCATABLE' ], language: 'c')
endif
gdk_pixbuf_conf.set_quoted('GETTEXT_PACKAGE', meson.project_name())
configure_file(output: 'config.h', configuration: gdk_pixbuf_conf)
# Compat variables for pkgconfig
pkgconf = configuration_data()
pkgconf.set('prefix', gdk_pixbuf_prefix)
pkgconf.set('exec_prefix', gdk_pixbuf_prefix)
pkgconf.set('libdir', gdk_pixbuf_libdir)
pkgconf.set('includedir', gdk_pixbuf_includedir)
pkgconf.set('GDK_PIXBUF_API_VERSION', gdk_pixbuf_api_version)
pkgconf.set('GDK_PIXBUF_BINARY_VERSION', gdk_pixbuf_binary_version)
pkgconf.set('GDK_PIXBUF_EXTRA_CFLAGS', '')
pkgconf.set('GDK_PIXBUF_EXTRA_LIBS', '')
pkgconf.set('PNG_DEP_CFLAGS_PACKAGES', '')
pkgconf.set('VERSION', meson.project_version())
configure_file(input: 'gdk-pixbuf-2.0.pc.in',
output: 'gdk-pixbuf-2.0.pc',
configuration: pkgconf,
install: true,
install_dir: join_paths(gdk_pixbuf_libdir, 'pkgconfig'))
root_inc = include_directories('.')
# Auxiliary scripts
gen_resources = find_program('build-aux/gen-resources.py')
gen_installed_test = find_program('build-aux/gen-installed-test.py')
gen_thumbnailer = find_program('build-aux/gen-thumbnailer.py')
gnome = import('gnome')
subdir('gdk-pixbuf')
# X11
x11_dep = dependency('x11', required: false)
if x11_dep.found()
subdir('contrib/gdk-pixbuf-xlib')
endif
# i18n
subdir('po')
subdir('tests')
subdir('thumbnailer')
# Documentation
subdir('docs/reference/gdk-pixbuf')