mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-10-01 03:16:38 +02:00
db96cb45ce
The identifiers and types in Gio-2.0 that are used for backward compatibility purposes in order to keep code importing Gio and using platform-specific API are actually breaking the platform-specific introspection data, because the introspection scanner favours types found inside dependencies as opposed to types with the same name found inside the current namespace. In practice, the backward compatibility hack of keeping duplicate types inside Gio-2.0 is effectively preventing people from using GioUnix-2.0 and GioWin32-2.0. We cannot change the introspection scanner, because that could have unforeseen results across the stack. We cannot remove the symbols and bump the namespace version of Gio and friends to 3.0, unless we keep generating known-to-be-broken 2.0 versions of all the namespaces. It also won't solve the issue of code loading Gio without specifying a version, because that always imples using the latest version of the namespace, which means backward compatibility would still need an explicit opt in. In practice, the only reasonable way forward is to break backward compatibility, and remove the duplicate symbols and identifiers from Gio-2.0, as we should have done in the first place. Fixes: #3744
359 lines
9.9 KiB
Meson
359 lines
9.9 KiB
Meson
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gi_identifier_prefix = 'G'
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gi_symbol_prefix = 'g'
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gi_gen_shared_sources = [
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# Required to compile gdump
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gmodule_visibility_h,
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]
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gi_gen_shared_dependencies = [
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# libgirepository is not needed by most of the modules below, but it is needed
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# by the g-ir-scanner generated dumper program. If we don’t explicitly include
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# the local version of it here, Meson will implicitly link against it anyway,
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# and that might pull in a different version, or try to link against a
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# half-built local version as the build ordering dependency tree won’t
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# reflect this relationship.
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libgirepository_dep,
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]
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gi_gen_env_variables = environment()
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if 'address' in glib_sanitizers
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gi_gen_env_variables.append(
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'ASAN_OPTIONS', 'verify_asan_link_order=0', separator: ',')
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endif
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if host_system == 'windows'
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# Use gio-2.0-uninstalled.pc to find the paths where the GLib DLLs (and their dependent non-system
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# DLLs that are built as subprojects) are located
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check_built_dll_paths_cmd = [get_dll_paths_script, '--build-path=@0@'.format(meson.project_build_root())]
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meson_pkgconfig_paths = get_option('pkg_config_path')
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if meson_pkgconfig_paths.length() > 0
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check_built_dll_paths_cmd += '--pkg-config-path=@0@'.format(''.join(meson_pkgconfig_paths))
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endif
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check_built_dll_paths = run_command(
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check_built_dll_paths_cmd,
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capture: true,
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check: true,
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)
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# hmm, no os.pathsep in Meson to make this more portable, if needed?
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gi_scanner_dll_paths = check_built_dll_paths.stdout().strip().split(';')
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# Also assume the existing paths in %PATH% to be considered for DLLs
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message('Ensure that all of GLib\'s dependent non-system DLLs that are not built')
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message('alongside with GLib can be found in paths in %PATH%')
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message('Check this if building .gir files fail due to \'ImportError: DLL load failed while importing _giscanner\'')
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gi_gen_env_variables.set('GI_EXTRA_BASE_DLL_DIRS', gi_scanner_dll_paths)
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endif
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# GLib
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glib_gir_sources = [
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gi_gen_shared_sources,
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glibconfig_h,
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gversionmacros_h,
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glib_visibility_h,
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glib_headers,
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glib_deprecated_headers,
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glib_sub_headers,
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glib_enumtypes_h,
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glib_types_h,
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glib_deprecated_sources,
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glib_sources,
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files('../../glib/docs.c'),
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]
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# For API compatibility reasons, GLib-2.0.gir needs to contain the platform
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# specific APIs which are also present in the (newer) GLibUnix-2.0.gir and
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# GLibWin32-2.0.gir repositories.
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# See https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3892#note_2001361
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# These can be dropped when GLib next breaks API (i.e. with GLib-3.0.gir).
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if host_system == 'windows'
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glib_gir_sources += files('../../glib/gwin32.h')
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else
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glib_gir_sources += files('../../glib/glib-unix.h')
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endif
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glib_gir = gnome.generate_gir(libglib,
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sources: glib_gir_sources,
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namespace: 'GLib',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: 'glib-2.0',
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header: 'glib.h',
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libgobject_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + [
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'-DGLIB_COMPILATION',
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'-DGETTEXT_PACKAGE="dummy"',
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'--symbol-prefix=glib',
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'--library-path=' + meson.current_build_dir(),
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'--library=gobject-2.0',
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],
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)
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if host_system == 'windows'
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glib_win32_gir = gnome.generate_gir(libglib,
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sources: [
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gi_gen_shared_sources,
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glib_win32_headers,
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],
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namespace: 'GLibWin32',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: 'glib-2.0',
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header: 'glib.h',
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includes: [ glib_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libgobject_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + [
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'-DGLIB_COMPILATION',
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'-DGETTEXT_PACKAGE="dummy"',
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'--symbol-prefix=glib',
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'--symbol-prefix=g_win32',
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'--identifier-prefix=GWin32',
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'--library-path=' + meson.current_build_dir(),
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'--library=gobject-2.0',
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],
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)
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else
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glib_unix_gir = gnome.generate_gir(libglib,
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sources: [
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gi_gen_shared_sources,
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glib_unix_headers,
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],
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namespace: 'GLibUnix',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: 'glib-2.0',
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header: 'glib.h',
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includes: [ glib_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libgobject_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + [
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'-DGLIB_COMPILATION',
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'-DGETTEXT_PACKAGE="dummy"',
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'--symbol-prefix=glib',
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'--symbol-prefix=g_unix',
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'--identifier-prefix=GUnix',
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'--library-path=' + meson.current_build_dir(),
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'--library=gobject-2.0',
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'--c-include=glib-unix.h',
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],
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)
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endif
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# GObject
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gobject_gir = gnome.generate_gir(libgobject,
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sources: [
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gi_gen_shared_sources,
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gobject_visibility_h,
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gobject_install_headers,
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gobject_sources,
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],
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namespace: 'GObject',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: 'gobject-2.0',
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header: 'glib-object.h',
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includes: [ glib_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies,
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env: gi_gen_env_variables,
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extra_args: gir_args + [
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'-DGOBJECT_COMPILATION',
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'--symbol-prefix=gobject',
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],
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)
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# GModule
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gmodule_gir = gnome.generate_gir(libgmodule,
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sources: [
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gi_gen_shared_sources,
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gmoduleconf_h,
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gmodule_h,
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gmodule_c,
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gmodule_deprecated_c,
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gmodule_visibility_h,
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],
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namespace: 'GModule',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: 'gmodule-2.0',
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header: 'gmodule.h',
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includes: [ glib_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libglib_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + [
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'-DGMODULE_COMPILATION',
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'-DGETTEXT_PACKAGE="dummy"',
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'--symbol-prefix=gmodule',
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],
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)
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# Gio
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gio_gir_sources = [
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gi_gen_shared_sources,
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gio_visibility_h,
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gioenumtypes_h,
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gnetworking_h,
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gio_headers,
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gio_base_sources,
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application_sources,
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gdbus_sources,
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contenttype_sources,
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settings_sources,
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]
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gio_gir_packages = [ 'gio-2.0' ]
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gio_gir_args = [
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'-DGIO_COMPILATION',
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'-DG_SETTINGS_ENABLE_BACKEND',
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'--symbol-prefix=gio',
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]
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gio_gir = gnome.generate_gir(libgio,
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sources: gio_gir_sources,
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namespace: 'Gio',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: gio_gir_packages,
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header: 'gio/gio.h',
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includes: [ glib_gir[0], gmodule_gir[0], gobject_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libglib_dep,
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libgobject_dep,
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libgmodule_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + gio_gir_args,
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)
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if host_system == 'windows'
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gio_win32_gir_c_includes = []
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foreach h: gio_win32_include_headers
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gio_win32_gir_c_includes += '--c-include=gio/' + fs.name(h)
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endforeach
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gio_win32_gir = gnome.generate_gir(libgio,
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sources: gio_win32_include_headers + win32_sources,
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namespace: 'GioWin32',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: [ 'gio-windows-2.0' ],
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header: 'gio/gio.h',
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includes: [ glib_gir[0], gmodule_gir[0], gobject_gir[0], gio_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libglib_dep,
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libgobject_dep,
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libgmodule_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + gio_gir_args + gio_win32_gir_c_includes + [
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'--pkg=gio-windows-2.0',
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'--symbol-prefix=g_win32',
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'--identifier-prefix=GWin32'
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],
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)
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gio_platform_gir = gio_win32_gir
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else
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gio_unix_gir_c_includes = []
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foreach h: gio_unix_include_headers
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gio_unix_gir_c_includes += '--c-include=gio/' + fs.name(h)
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endforeach
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gio_unix_gir = gnome.generate_gir(libgio,
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sources: gio_unix_include_headers + unix_sources,
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namespace: 'GioUnix',
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nsversion: '2.0',
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identifier_prefix: gi_identifier_prefix,
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symbol_prefix: gi_symbol_prefix,
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export_packages: [ 'gio-unix-2.0' ],
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header: 'gio/gio.h',
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includes: [ glib_gir[0], gmodule_gir[0], gobject_gir[0], gio_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libglib_dep,
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libgobject_dep,
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libgmodule_dep,
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],
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env: gi_gen_env_variables,
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extra_args: gir_args + gio_gir_args + gio_unix_gir_c_includes + [
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'--pkg=gio-unix-2.0',
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'--symbol-prefix=g_unix',
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'--identifier-prefix=GUnix'
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],
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)
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gio_platform_gir = gio_unix_gir
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endif
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# GIRepository
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libgirepository_gir_sources = [
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gi_visibility_h,
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girepo_headers,
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girepo_sources,
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]
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libgirepository_gir_packages = [ 'girepository-2.0' ]
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libgirepository_gir_args = [
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'-DGI_COMPILATION',
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'--symbol-prefix=gi',
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'--identifier-prefix=GI',
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]
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gi_libgirepository_gen_env_variables = environment()
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if host_system == 'windows'
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gi_libgirepository_gen_env_variables.set('GI_EXTRA_BASE_DLL_DIRS', gi_scanner_dll_paths)
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endif
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girepository_gir = gnome.generate_gir(libgirepository,
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sources: libgirepository_gir_sources,
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namespace: 'GIRepository',
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nsversion: '3.0',
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identifier_prefix: 'GI',
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symbol_prefix: 'gi',
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export_packages: libgirepository_gir_packages,
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header: 'girepository/girepository.h',
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includes: [ glib_gir[0], gmodule_gir[0], gobject_gir[0], gio_gir[0] ],
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install: true,
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install_dir_gir: glib_girdir,
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dependencies: gi_gen_shared_dependencies + [
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libglib_dep,
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libgobject_dep,
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libgmodule_dep,
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libgio_dep,
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],
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extra_args: gir_args + libgirepository_gir_args,
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env: gi_libgirepository_gen_env_variables,
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)
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