mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 04:01:08 +00:00
d97e480dfe
The documentation within meson highlights, that `ninja` can be used
without problems for any case except `ninja reconfigure`. The warning
however describes to the user, that `ninja` shouldn't be used at all.
Fix the warning.
Fixes: 01eb252f67 Don't allow people to run meson inside the uninstalled env
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1743>
406 lines
15 KiB
Meson
406 lines
15 KiB
Meson
project('gstreamer-full', 'c',
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version : '1.21.0.1',
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meson_version : '>= 0.59',
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default_options : ['buildtype=debugoptimized',
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# Needed due to https://github.com/mesonbuild/meson/issues/1889,
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# but this can cause problems in the future. Remove it
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# when it's no longer necessary.
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'cpp_std=c++14'])
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gst_version = '>= @0@'.format(meson.project_version())
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build_system = build_machine.system()
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cc = meson.get_compiler('c')
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fs = import('fs')
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gnome = import('gnome')
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pkgconfig = import('pkgconfig')
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python3 = import('python').find_installation()
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# Ensure that we're not being run from inside the development environment
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# because that will confuse meson, and it might find the already-built
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# gstreamer. It's fine if people run `ninja` as long as it doesn't run
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# reconfigure because ninja doesn't care about the env.
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ensure_not_devenv = '''
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import os
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assert('GST_ENV' not in os.environ)
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'''
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cmdres = run_command(python3, '-c', ensure_not_devenv, check: false)
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if cmdres.returncode() != 0
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error('Do not run `ninja reconfigure` or `meson` for gst-build inside the development environment, you will run into problems')
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endif
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# Install gst-indent pre-commit hook
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run_command(python3, '-c', 'import shutil; shutil.copy("scripts/git-hooks/multi-pre-commit.hook", ".git/hooks/pre-commit")', check: false)
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# Ensure that the user does not have Strawberry Perl in PATH, since it ships
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# with a pkg-config.bat and broken pkgconfig files for libffi and zlib. Will
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# cause a build error, such as in
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# https://gitlab.freedesktop.org/gstreamer/gst-build/-/issues/41
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ensure_no_strawberry_perl = '''
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import os
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assert(r'Strawberry\perl\bin' not in os.environ['PATH'])
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'''
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if build_system == 'windows' and meson.version().version_compare('<0.60.0')
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cmdres = run_command(python3, '-c', ensure_no_strawberry_perl, check: false)
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if cmdres.returncode() != 0
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error('You have Strawberry Perl in PATH which is known to cause build issues with Meson < 0.60.0. Please remove it from PATH, uninstall it, or upgrade Meson.')
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endif
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endif
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documented_projects = ''
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# Make it possible to use msys2 built zlib which fails
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# when not using the mingw toolchain as it uses unistd.h
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if not meson.is_subproject() and cc.get_id() == 'msvc'
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uname = find_program('uname', required: false)
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if uname.found()
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ret = run_command(uname, '-o', check: false)
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if ret.returncode() == 0 and ret.stdout().to_lower() == 'msys'
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ret = run_command(uname, '-r', check: false)
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# The kernel version returned by uname is actually the msys version
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if ret.returncode() == 0 and ret.stdout().startswith('2')
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# If a system zlib is found, disable UNIX features in zlib.h and zconf.h
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if cc.find_library('z').found()
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add_global_arguments('-DZ_SOLO', language: 'c')
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endif
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endif
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endif
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endif
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endif
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# Ensure that MSVC interprets all source code as UTF-8. Only do this when we're
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# not a subproject, because subprojects are not allowed to call
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# add_global_arguments().
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if not meson.is_subproject() and cc.get_id() == 'msvc'
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add_global_arguments(
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cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
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language: ['c', 'cpp'])
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endif
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# Ordered list of subprojects (dict has no ordering guarantees)
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subprojects = [
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['gstreamer', {'build-hotdoc': true}],
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['gst-plugins-base', {'option': get_option('base'), 'build-hotdoc': true}],
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['gst-plugins-good', {'option': get_option('good'), 'build-hotdoc': true}],
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['libnice', { 'option': get_option('libnice'), 'match_gst_version': false}],
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['gst-plugins-bad', { 'option': get_option('bad'), 'build-hotdoc': true}],
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['gst-plugins-ugly', { 'option': get_option('ugly'), 'build-hotdoc': true}],
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['gst-libav', { 'option': get_option('libav'), 'build-hotdoc': true}],
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['gst-rtsp-server', { 'option': get_option('rtsp_server'), 'build-hotdoc': true}],
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['gst-devtools', { 'option': get_option('devtools'), 'build-hotdoc': true }],
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['gst-integration-testsuites', { 'option': get_option('devtools') }],
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['gst-editing-services', { 'option': get_option('ges'), 'build-hotdoc': true}],
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['gstreamer-vaapi', { 'option': get_option('vaapi'), 'build-hotdoc': true}],
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['gst-omx', { 'option': get_option('omx'), 'build-hotdoc': true}],
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['gstreamer-sharp', { 'option': get_option('sharp') }],
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['pygobject', { 'option': get_option('python'), 'match_gst_version': false, 'sysdep': 'pygobject-3.0', 'sysdep_version': '>= 3.8' }],
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['gst-python', { 'option': get_option('python')}],
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['gst-examples', { 'option': get_option('gst-examples'), 'match_gst_versions': false}],
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['gst-plugins-rs', { 'option': get_option('rs'), 'match_gst_version': false}],
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]
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symlink = '''
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import os
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os.symlink(os.path.join('@1@', 'subprojects', '@0@'),
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os.path.join('@1@', '@0@'))
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'''
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if build_system == 'windows'
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subproject('win-flex-bison-binaries')
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subproject('win-nasm')
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elif build_system == 'darwin'
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subproject('macos-bison-binary')
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endif
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orc_subproject = subproject('orc', required: get_option('orc'))
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foreach custom_subproj: get_option('custom_subprojects').split(',')
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if custom_subproj != ''
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message ('Adding custom subproject ' + custom_subproj)
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subprojects += [[custom_subproj, {'match_gst_version': false}]]
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endif
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endforeach
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subprojects_names = []
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plugins_doc_caches = []
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orc_update_targets = []
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all_plugins = []
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# Using a list and not a dict to keep the ordering to build the chain of `gir`
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# dependencies
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all_libraries = []
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foreach sp : subprojects
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project_name = sp[0]
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build_infos = sp[1]
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is_required = build_infos.get('option', true)
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sysdep = build_infos.get('sysdep', '')
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sysdep_version = build_infos.get('sysdep_version', '')
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match_gst_version = build_infos.get('match_gst_version', true)
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if match_gst_version
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subproj = subproject(project_name, version: gst_version, required: is_required)
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elif sysdep != ''
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sysdep_dep = dependency(sysdep, version: sysdep_version, required: false)
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if not sysdep_dep.found()
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subproj = subproject(project_name, required: is_required)
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endif
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else
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subproj = subproject(project_name, required: is_required)
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endif
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if subproj.found()
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plugins = subproj.get_variable('plugins', [])
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all_plugins += plugins
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all_libraries += subproj.get_variable('libraries', [])
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orc_update_targets += subproj.get_variable('orc_update_targets', [])
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subprojects_names += [project_name]
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if not meson.is_cross_build() and build_infos.get('build-hotdoc', false)
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if plugins.length() > 0
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plugins_doc_caches += [subproj.get_variable('plugins_doc_dep', [])]
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endif
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if documented_projects != ''
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documented_projects += ','
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endif
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documented_projects += project_name
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endif
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endif
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endforeach
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# Check if we need to also build glib-networking for TLS modules
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glib_dep = dependency('glib-2.0')
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if glib_dep.type_name() == 'internal'
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subproject('glib-networking', required : get_option('tls'),
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default_options: ['gnutls=auto', 'openssl=auto'])
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endif
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plugins_doc_dep = custom_target('plugins-doc-cache',
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command: [python3, '-c', 'print("Built all doc caches")'],
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input: plugins_doc_caches,
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output: 'plugins_doc_caches',
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capture: true,
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)
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if meson.is_cross_build() or build_machine.system() == 'windows'
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if get_option('doc').enabled()
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error('Documentation enabled but building the doc while cross building or building on windows is not supported yet.')
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endif
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documented_projects = ''
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message('Documentation not built as building the documentation while cross building or building on windows is not supported yet.')
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else
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hotdoc_p = find_program('hotdoc', required : get_option('doc'))
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if not hotdoc_p.found()
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documented_projects = ''
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message('Not building documentation as hotdoc was not found')
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endif
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endif
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write_file_contents = '''
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import os
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import sys
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assert len(sys.argv) >= 3
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fname = sys.argv[1]
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contents = sys.argv[2]
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with open(fname, 'w') as f:
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f.write(contents)
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'''
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configure_file(
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output : 'GstDocumentedSubprojects',
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command : [python3,
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'-c', write_file_contents,
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'@OUTPUT@',
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documented_projects]
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)
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if documented_projects != ''
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subproject('gst-docs', required: get_option('doc').enabled())
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message('Gst docs subprojects: ' + documented_projects)
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endif
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all_plugins_paths = []
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all_plugins_dirs = []
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foreach plugin: all_plugins
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all_plugins_paths += plugin.full_path()
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all_plugins_dirs += fs.parent(plugin.full_path())
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endforeach
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# Work around meson bug: https://github.com/mesonbuild/meson/pull/6770
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pathsep = host_machine.system() == 'windows' ? ';' : ':'
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all_plugins_paths = pathsep.join(all_plugins_paths)
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devenv = environment()
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devenv.prepend('GST_PLUGIN_PATH', all_plugins_dirs)
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devenv.set('CURRENT_GST', meson.current_source_dir())
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devenv.set('GST_VERSION', meson.project_version())
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devenv.set('GST_ENV', 'gst-' + meson.project_version())
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devenv.set('GST_REGISTRY', meson.current_build_dir() / 'registry.dat')
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devenv.set('GST_PLUGIN_SYSTEM_PATH', '')
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meson.add_devenv(devenv)
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generate_plugins_paths = find_program('scripts/generate_plugins_path.py')
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configure_file(
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output : 'GstPluginsPath.json',
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command : [generate_plugins_paths,
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'@OUTPUT@',
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all_plugins_paths]
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)
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if get_option('default_library') == 'static'
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# Generate a .c file which declare and register all built plugins
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plugins_names = []
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foreach plugin: all_plugins
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plugins_names += plugin.full_path()
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endforeach
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all_plugin_names = ';'.join(plugins_names)
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static_plugins = get_option('gst-full-plugins')
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if static_plugins == '*'
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static_plugins = all_plugin_names
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endif
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generate_init_static_plugins = find_program('scripts/generate_init_static_plugins.py')
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init_static_plugins_c = configure_file(
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output: 'gstinitstaticplugins.c',
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command : [generate_init_static_plugins,
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'-o ' + '@OUTPUT@',
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'-p ' + static_plugins,
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'-e ' + get_option('gst-full-elements'),
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'-t ' + get_option('gst-full-typefind-functions'),
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'-d ' + get_option('gst-full-device-providers'),
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'-T ' + get_option('gst-full-dynamic-types')
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]
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)
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gstfull_link_args = cc.get_supported_link_arguments(['-Wl,-Bsymbolic-functions'])
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# Get a list of libraries that needs to be exposed in the ABI.
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exposed_libs = []
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exposed_girs = []
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incdir_deps = []
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wanted_libs = ['gstreamer-1.0'] + get_option('gst-full-libraries')
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all_libs = '*' in wanted_libs
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foreach pkgname_library : all_libraries
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pkg_name = pkgname_library[0]
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lib_def = pkgname_library[1]
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if pkg_name in wanted_libs or all_libs
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if lib_def.has_key('lib')
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incdir_deps += dependency(pkg_name).partial_dependency(includes: true, sources: true)
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exposed_libs += [lib_def['lib']]
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endif
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if lib_def.has_key('gir')
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exposed_girs += lib_def['gir']
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endif
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endif
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endforeach
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# glib and gobject are part of our public API. If we are using glib from the
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# system then our pkg-config file must require it. If we built it as
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# subproject then we need to link_whole it.
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glib_deps = []
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glib_dep = dependency('glib-2.0')
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gobject_dep = dependency('gobject-2.0')
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if gobject_dep.type_name() == 'internal'
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glib_subproject = subproject('glib')
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exposed_libs += glib_subproject.get_variable('libglib')
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exposed_libs += glib_subproject.get_variable('libgobject')
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incdir_deps += [
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glib_dep.partial_dependency(includes: true),
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gobject_dep.partial_dependency(includes: true),
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]
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else
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glib_deps = [glib_dep, gobject_dep]
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endif
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link_deps = []
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if get_option('gst-full-version-script') != ''
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symbol_map = meson.current_source_dir() / get_option('gst-full-version-script')
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link_arg = '-Wl,--version-script=' + symbol_map
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if cc.has_link_argument(link_arg)
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gstfull_link_args += link_arg
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link_deps += symbol_map
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elif cc.get_id() == 'msvc'
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warning('FIXME: Provide a def file to publish the public symbols')
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else
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warning('FIXME: Linker does not support the supplied version script (' + symbol_map + '), please disable the "gst-full-version-script" option')
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endif
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endif
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# Build both shared and static library
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gstfull = both_libraries('gstreamer-full-1.0',
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init_static_plugins_c,
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link_with : all_plugins,
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link_args: gstfull_link_args,
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link_whole : exposed_libs,
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dependencies : incdir_deps + glib_deps,
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link_depends : link_deps,
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install : true,
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)
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gst_full_dep = declare_dependency(link_with: gstfull.get_shared_lib(),
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dependencies : incdir_deps + glib_deps,
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include_directories: include_directories('.')
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)
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gst_full_libs_private = cc.get_supported_link_arguments(['-Wl,--undefined=gst_init_static_plugins'])
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if gst_full_libs_private == []
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warning('The compiler does not support `-Wl,--undefined` linker flag. The method `gst_init_static_plugins` might be dropped during the link stage of an application using libgstreamer-full-1.0.a, preventing plugins registration.')
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endif
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if not get_option('introspection').disabled()
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built_girs = {}
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foreach gir: exposed_girs
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includes = []
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foreach include: gir.get('includes', [])
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includes += [built_girs.get(include, include)]
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endforeach
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gir += {
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'includes': includes,
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'extra_args': gir.get('extra_args', []) + ['--add-include-path=' + meson.current_build_dir()],
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'install': true,
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}
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built_girs += {gir.get('namespace') + '-' + gir.get('nsversion'): gnome.generate_gir(gstfull, kwargs: gir)[0]}
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endforeach
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endif
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pkgconfig.generate(gstfull,
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requires: glib_deps,
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libraries_private: gst_full_libs_private,
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subdirs : 'gstreamer-1.0')
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meson.override_dependency('gstreamer-full-1.0', gst_full_dep)
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endif
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message('Building subprojects: ' + ', '.join(subprojects_names))
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setenv = find_program('gst-env.py')
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devenv_cmd = [setenv, '--builddir=@0@'.format(meson.build_root()),
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'--srcdir=@0@'.format(meson.source_root())]
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subdir('tests')
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if meson.can_run_host_binaries() and build_machine.system() == 'linux' and host_machine.system() == 'windows'
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# FIXME: Ideally we could get the wrapper directly from meson
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devenv_cmd += ['--wine', host_machine.cpu_family() == 'x86_64' ? 'wine64' : 'wine32']
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sysroot = meson.get_cross_property('sys_root')
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if sysroot != ''
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# Logic from meson
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devenv_cmd += ['--winepath', 'Z:' + join_paths(sysroot, 'bin')]
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endif
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endif
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run_target('devenv', command : devenv_cmd)
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if orc_subproject.found() and orc_update_targets.length() > 0
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alias_target('update-orc-dist', orc_update_targets)
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endif
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summary({
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'gstreamer-full': get_option('default_library') == 'static',
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}, section: 'Build options', bool_yn: true, list_sep: ' ')
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