meson: Use feature options everywhere it makes sense

.cirrus.yml

@@ -11,7 +11,7 @@ task:
   build_script:
     - mkdir build
     - cd build
-    - meson setup -Dalsa=false -Dpipewire-alsa=false -Dbluez5=false -Djack=false -Dpipewire-jack=false -Dpipewire-pulseaudio=false -Dv4l2=false -Dsystemd=false ..
+    - meson setup -Dalsa=disabled -Dpipewire-alsa=disabled -Dbluez5=disabled -Djack=disabled -Dpipewire-jack=disabled -Dpipewire-pulseaudio=disabled -Dv4l2=disabled -Dsystemd=disabled ..
     - ninja
   test_script:
     - cd build

.gitlab-ci.yml

@@ -54,15 +54,15 @@ include:
     - export XDG_RUNTIME_DIR="$(mktemp -p $PWD -d xdg-runtime-XXXXXX)"
   script:
     - meson "$BUILD_DIR" . --prefix="$PREFIX"
-        -Ddocs=true
+        -Ddocs=enabled
-        -Dinstalled_tests=true
+        -Dinstalled_tests=enabled
-        -Dsystemd-system-service=true
+        -Dsystemd-system-service=enabled
-        -Dbluez5-backend-hsphfpd=true
+        -Dbluez5-backend-hsphfpd=enabled
-        -Daudiotestsrc=true
+        -Daudiotestsrc=enabled
-        -Dtest=true
+        -Dtest=enabled
-        -Dvideotestsrc=true
+        -Dvideotestsrc=enabled
-        -Dvolume=true
+        -Dvolume=enabled
-        -Dvulkan=true
+        -Dvulkan=enabled
         -Dsdl2=enabled
         -Dsndfile=enabled
     - ninja -C "$BUILD_DIR"

man/meson.build

@@ -19,7 +19,7 @@ manpages = [
   [ 'pw-mon', '1' ]
 ]
 
-if get_option('pipewire-jack')
+if not get_option('pipewire-jack').disabled()
   manpages += [[ 'pw-jack', '1' ]]
 endif
 

meson.build

@@ -171,7 +171,7 @@ elif cc.links(
   dependencies : libatomic,
   name : '8-byte __atomic_store_n with libatomic')
   atomic_dep = libatomic
-elif get_option('pipewire-jack')
+elif get_option('pipewire-jack').enabled()
   # Currently only required for the JACK backend
   error('8-byte atomic operations are required for pipewire-jack')
 endif
@@ -277,43 +277,12 @@ if cc.has_function('getrandom', prefix : '#include <sys/random.h>')
   cdata.set('HAVE_GETRANDOM', 1)
 endif
 
-if get_option('systemd')
+systemd = dependency('systemd', required: get_option('systemd'))
-  systemd = dependency('systemd', required: false)
+systemd_dep = dependency('libsystemd',required: get_option('systemd'))
-  systemd_dep = dependency('libsystemd', required: false)
+if systemd.found() and systemd_dep.found()
-  if systemd.found() and systemd_dep.found()
+  cdata.set('HAVE_SYSTEMD', 1)
-    cdata.set('HAVE_SYSTEMD', 1)
-  else
-    warning('systemd integration was enabled, but systemd is not available')
-  endif
 endif
 
-if get_option('bluez5')
-  if get_option('bluez5-backend-hsp-native')
-    cdata.set('HAVE_BLUEZ_5_BACKEND_HSP_NATIVE', 1)
-    cdata.set('HAVE_BLUEZ_5_BACKEND_NATIVE', 1)
-  endif
-  if get_option('bluez5-backend-hfp-native')
-    cdata.set('HAVE_BLUEZ_5_BACKEND_HFP_NATIVE', 1)
-    cdata.set('HAVE_BLUEZ_5_BACKEND_NATIVE', 1)
-  endif
-  if get_option('bluez5-backend-ofono')
-    cdata.set('HAVE_BLUEZ_5_BACKEND_OFONO', 1)
-  endif
-  if get_option('bluez5-backend-hsphfpd')
-    cdata.set('HAVE_BLUEZ_5_BACKEND_HSPHFPD', 1)
-  endif
-endif
-
-if get_option('gstreamer')
-  if get_option('gstreamer-device-provider')
-    cdata.set('HAVE_GSTREAMER_DEVICE_PROVIDER', 1)
-  endif
-endif
-
-configure_file(input : 'config.h.meson',
-  output : 'config.h',
-  configuration : cdata)
-
 configinc = include_directories('.')
 pipewire_inc = include_directories('src')
 
@@ -341,19 +310,35 @@ sdl_dep = dependency('sdl2', required : get_option('sdl2'))
 ncurses_dep = dependency('ncurses', required : false)
 sndfile_dep = dependency('sndfile', version : '>= 1.0.20', required : get_option('sndfile'))
 
-if get_option('gstreamer')
+gst_option = get_option('gstreamer')
-  glib_dep = dependency('glib-2.0', version : '>=2.32.0')
+gst_deps_def = {
-endif
+  'glib-2.0': {'version': '>=2.32.0'},
+  'gobject-2.0': {},
+  'gmodule-2.0': {},
+  'gio-2.0': {},
+  'gio-unix-2.0': {},
+  'gstreamer-1.0': {'version': '>= 1.10.0'},
+  'gstreamer-plugins-base-1.0': {},
+  'gstreamer-video-1.0': {},
+  'gstreamer-audio-1.0': {},
+  'gstreamer-allocators-1.0': {},
+}
 
-if get_option('gstreamer')
+gst_dep = []
-  gobject_dep = dependency('gobject-2.0')
+foreach depname, kwargs: gst_deps_def
-  gmodule_dep = dependency('gmodule-2.0')
+  dep = dependency(depname, required: gst_option, kwargs: kwargs)
-  gio_dep = [dependency('gio-2.0'), dependency('gio-unix-2.0')]
+  if not dep.found()
-  gst_dep = [dependency('gstreamer-1.0', version : '>= 1.10.0'),
+    gst_dep = []
-             dependency('gstreamer-plugins-base-1.0'),
+    if get_option('gstreamer-device-provider').enabled()
-             dependency('gstreamer-video-1.0'),
+      error('`gstreamer-device-provider` is enabled but `@0@` was not found.'.format(depname))
-             dependency('gstreamer-audio-1.0'),
+    endif
-             dependency('gstreamer-allocators-1.0'),]
+    break
+  endif
+  gst_dep += [dep]
+endforeach
+
+if not get_option('gstreamer-device-provider').disabled()
+  cdata.set('HAVE_GSTREAMER_DEVICE_PROVIDER', 1)
 endif
 
 # On FreeBSD, epoll-shim library is required for eventfd() and timerfd()
@@ -365,44 +350,38 @@ libinotify_dep = (build_machine.system() == 'freebsd'
     ? dependency('libinotify', required: true)
     : dependency('', required: false))
 
-alsa_dep = (get_option('pipewire-alsa')
+alsa_dep = dependency('alsa', version : '>=1.1.7', required: get_option('pipewire-alsa'))
-    ? dependency('alsa', version : '>=1.1.7')
-    : dependency('', required: false))
 
 installed_tests_metadir = join_paths(pipewire_datadir, 'installed-tests', pipewire_name)
 installed_tests_execdir = join_paths(pipewire_libexecdir, 'installed-tests', pipewire_name)
-installed_tests_enabled = get_option('installed_tests')
+installed_tests_enabled = not get_option('installed_tests').disabled()
 installed_tests_template = files('template.test.in')
 
 subdir('po')
 subdir('spa')
 subdir('src')
 
-if get_option('pipewire-jack')
+configure_file(input : 'config.h.meson',
+  output : 'config.h',
+  configuration : cdata)
+
+if not get_option('pipewire-jack').disabled()
   subdir('pipewire-jack')
 endif
 
-if get_option('pipewire-alsa')
+if not get_option('pipewire-alsa').disabled()
   subdir('pipewire-alsa/alsa-plugins')
   subdir('pipewire-alsa/conf')
 endif
 
-if get_option('docs')
+doxygen = find_program('doxygen', required : get_option('docs'))
-  doxygen = find_program('doxygen', required : false)
+if doxygen.found()
-  if doxygen.found()
+  subdir('doc')
-    subdir('doc')
-  else
-    warning('Documentation was enabled, but doxygen is not available')
-  endif
 endif
 
-if get_option('man')
+xmltoman = find_program('xmltoman', required : get_option('man'))
-  xmltoman = find_program('xmltoman', required : false)
+if xmltoman.found()
-  if xmltoman.found()
+  subdir('man')
-    subdir('man')
-  else
-    warning('Man page generation was enabled, but xmltoman is not available')
-  endif
 endif
 
 setenv = find_program('pw-uninstalled.sh')

meson_options.txt

@@ -1,154 +1,155 @@
 option('docs',
        description: 'Build documentation',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'disabled')
 option('examples',
        description: 'Build examples',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'enabled')
 option('media-session',
        description: 'Build and install pipewire-media-session',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('man',
        description: 'Build manpages',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('tests',
        description: 'Build tests',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto',
+       yield : true)
 option('installed_tests',
        description: 'Install manual and automated test executables',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'disabled')
 option('gstreamer',
        description: 'Build GStreamer plugins',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('gstreamer-device-provider',
        description: 'Build GStreamer device provider plugin',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('systemd',
        description: 'Enable systemd integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('systemd-system-service',
        description: 'Install systemd system service file',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('systemd-user-service',
        description: 'Install systemd user service file',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('pipewire-alsa',
        description: 'Enable pipewire-alsa integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('pipewire-jack',
        description: 'Enable pipewire-jack integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('libjack-path',
        description: 'Where to install the libjack.so library',
        type: 'string')
 option('spa-plugins',
        description: 'Enable spa plugins integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('alsa',
        description: 'Enable alsa spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('audiomixer',
        description: 'Enable audiomixer spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('audioconvert',
        description: 'Enable audioconvert spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('bluez5',
        description: 'Enable bluez5 spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('bluez5-backend-hsp-native',
        description: 'Enable HSP in native backend in bluez5 spa plugin',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('bluez5-backend-hfp-native',
        description: 'Enable HFP in native backend in bluez5 spa plugin',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('bluez5-backend-ofono',
        description: 'Enable oFono HFP backend in bluez5 spa plugin',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('bluez5-backend-hsphfpd',
        description: 'Enable hsphfpd backend in bluez5 spa plugin',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('control',
        description: 'Enable control spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('audiotestsrc',
        description: 'Enable audiotestsrc spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('ffmpeg',
        description: 'Enable ffmpeg spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'disabled')
 option('jack',
        description: 'Enable jack spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('support',
        description: 'Enable support spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('evl',
        description: 'Enable EVL support spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'disabled')
 option('test',
        description: 'Enable test spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'disabled')
 option('v4l2',
        description: 'Enable v4l2 spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('libcamera',
        description: 'Enable libcamera spa plugin integration',
        type: 'boolean',
        value: false)
 option('videoconvert',
        description: 'Enable videoconvert spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('videotestsrc',
        description: 'Enable videotestsrc spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('volume',
        description: 'Enable volume spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('vulkan',
        description: 'Enable vulkan spa plugin integration',
-       type: 'boolean',
+       type: 'feature',
-       value: false)
+       value: 'auto')
 option('pw-cat',
        description: 'Build pw-cat/pw-play/pw-record',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('udev',
        description: 'Enable Udev integration',
-       type: 'boolean',
+       type: 'feature',
-       value: true)
+       value: 'auto')
 option('udevrulesdir',
        type : 'string',
        description : 'Directory for udev rules (defaults to /lib/udev/rules.d)')

spa/examples/meson.build

@@ -6,7 +6,7 @@ if sdl_dep.found()
              install : installed_tests_enabled,
              install_dir : join_paths(installed_tests_execdir, 'examples', 'spa'))
 
-  if get_option('libcamera') and libcamera_dep.found()
+  if libcamera_dep.found()
     executable('local-libcamera', 'local-libcamera.c',
                include_directories : [configinc, spa_inc],
                c_args : ['-D_GNU_SOURCE'],

spa/meson.build

@@ -9,7 +9,7 @@ spa_inc = include_directories('include')
 
 subdir('include')
 
-if get_option('spa-plugins')
+if not get_option('spa-plugins').disabled()
   udevrulesdir = get_option('udevrulesdir')
   if udevrulesdir == ''
     # absolute path, otherwise meson prepends the prefix
@@ -17,42 +17,28 @@ if get_option('spa-plugins')
   endif
 
   # common dependencies
-  if get_option('alsa') or get_option('v4l2')
+  libudev_dep = dependency('libudev', required: get_option('alsa').enabled() or get_option('v4l2').enabled() or get_option('udev').enabled())
-    libudev_dep = dependency('libudev')
-  endif
 
   # plugin-specific dependencies
-  if get_option('alsa')
+  alsa_dep = dependency('alsa', required: get_option('alsa'))
-    alsa_dep = dependency('alsa')
+  bluez_dep = dependency('bluez', version : '>= 4.101', required: get_option('bluez5'))
-  endif
+  sbc_dep = dependency('sbc', required: get_option('bluez5'))
-  if get_option('bluez5')
+  ldac_dep = dependency('ldacBT-enc', required : false)
-    bluez_dep = dependency('bluez', version : '>= 4.101')
+  ldac_abr_dep = dependency('ldacBT-abr', required : false)
-    sbc_dep = dependency('sbc')
+  aptx_dep = dependency('libopenaptx', required : false)
-    ldac_dep = dependency('ldacBT-enc', required : false)
+  fdk_aac_dep = dependency('fdk-aac', required : false)
-    ldac_abr_dep = dependency('ldacBT-abr', required : false)
+  avcodec_dep = dependency('libavcodec', required: get_option('ffmpeg'))
-    aptx_dep = dependency('libopenaptx', required : false)
+  avformat_dep = dependency('libavformat', required: get_option('ffmpeg'))
-    fdk_aac_dep = dependency('fdk-aac', required : false)
+  jack_dep = dependency('jack', version : '>= 1.9.10', required: get_option('jack'))
-  endif
+  vulkan_dep = dependency('vulkan', version : '>= 1.1.69', required: get_option('vulkan'))
-  if get_option('ffmpeg')
+  libcamera_dep = dependency('camera', required: get_option('libcamera'))
-    avcodec_dep = dependency('libavcodec')
-    avformat_dep = dependency('libavformat')
-  endif
-  if get_option('jack')
-    jack_dep = dependency('jack', version : '>= 1.9.10')
-  endif
-  if get_option('vulkan')
-    vulkan_dep = dependency('vulkan', version : '>= 1.1.69')
-  endif
-  if get_option('libcamera')
-    libcamera_dep = dependency('camera')
-  endif
 
   subdir('plugins')
 endif
 
 subdir('tools')
 subdir('tests')
-if get_option('examples')
+if not get_option('examples').disabled()
   subdir('examples')
 endif
 

spa/plugins/alsa/meson.build

@@ -42,7 +42,7 @@ executable('test-timer',
   install : false,
 )
 
-if get_option('udev') and libudev_dep.found()
+if libudev_dep.found()
   install_data(alsa_udevrules,
     install_dir : udevrulesdir,
   )

spa/plugins/bluez5/meson.build

@@ -1,3 +1,24 @@
+bluez5_deps = [ dbus_dep, sbc_dep, bluez_dep ]
+foreach dep: bluez5_deps
+  if not dep.found()
+    subdir_done()
+  endif
+endforeach
+
+if not get_option('bluez5-backend-hsp-native').disabled()
+  cdata.set('HAVE_BLUEZ_5_BACKEND_HSP_NATIVE', 1)
+  cdata.set('HAVE_BLUEZ_5_BACKEND_NATIVE', 1)
+endif
+if not get_option('bluez5-backend-hfp-native').disabled()
+  cdata.set('HAVE_BLUEZ_5_BACKEND_HFP_NATIVE', 1)
+  cdata.set('HAVE_BLUEZ_5_BACKEND_NATIVE', 1)
+endif
+if not get_option('bluez5-backend-ofono').disabled()
+  cdata.set('HAVE_BLUEZ_5_BACKEND_OFONO', 1)
+endif
+if not get_option('bluez5-backend-hsphfpd').disabled()
+  cdata.set('HAVE_BLUEZ_5_BACKEND_HSPHFPD', 1)
+endif
 
 bluez5_sources = ['plugin.c',
 		  'a2dp-codecs.c',
@@ -11,7 +32,6 @@ bluez5_sources = ['plugin.c',
 		  'bluez5-dbus.c']
 
 bluez5_args = [ '-D_GNU_SOURCE' ]
-bluez5_deps = [ dbus_dep, sbc_dep, bluez_dep ]
 
 if ldac_dep.found()
   bluez5_sources += [ 'a2dp-codec-ldac.c' ]
@@ -33,15 +53,15 @@ if fdk_aac_dep.found()
   bluez5_deps += fdk_aac_dep
 endif
 
-if get_option('bluez5-backend-hsp-native') or get_option('bluez5-backend-hfp-native')
+if not get_option('bluez5-backend-hsp-native').disabled() or not get_option('bluez5-backend-hfp-native').disabled()
   bluez5_sources += ['backend-native.c']
 endif
 
-if get_option('bluez5-backend-ofono')
+if not get_option('bluez5-backend-ofono').disabled()
   bluez5_sources += ['backend-ofono.c']
 endif
 
-if get_option('bluez5-backend-hsphfpd')
+if not get_option('bluez5-backend-hsphfpd').disabled()
   bluez5_sources += ['backend-hsphfpd.c']
 endif
 

spa/plugins/meson.build

@@ -1,48 +1,46 @@
-if get_option('alsa')
+if alsa_dep.found()
   subdir('alsa')
 endif
-if get_option('audioconvert')
+if not get_option('audioconvert').disabled()
   subdir('audioconvert')
 endif
-if get_option('audiomixer')
+if not get_option('audiomixer').disabled()
   subdir('audiomixer')
 endif
-if get_option('control')
+if not get_option('control').disabled()
   subdir('control')
 endif
-if get_option('audiotestsrc')
+if not get_option('audiotestsrc').disabled()
   subdir('audiotestsrc')
 endif
-if get_option('bluez5')
+subdir('bluez5')
-  subdir('bluez5')
+if avcodec_dep.found() and avformat_dep.found()
-endif
-if get_option('ffmpeg')
   subdir('ffmpeg')
 endif
-if get_option('jack')
+if jack_dep.found()
   subdir('jack')
 endif
-if get_option('support')
+if not get_option('support').disabled()
   subdir('support')
 endif
-if get_option('test')
+if not get_option('test').disabled()
   subdir('test')
 endif
-if get_option('videoconvert')
+if not get_option('videoconvert').disabled()
   subdir('videoconvert')
 endif
-if get_option('videotestsrc')
+if not get_option('videotestsrc').disabled()
   subdir('videotestsrc')
 endif
-if get_option('volume')
+if not get_option('volume').disabled()
   subdir('volume')
 endif
-if get_option('vulkan')
+if vulkan_dep.found()
   subdir('vulkan')
 endif
-if get_option('v4l2')
+if libudev_dep.found() and not get_option('v4l2').disabled()
   subdir('v4l2')
 endif
-if get_option('libcamera')
+if libcamera_dep.found()
   subdir('libcamera')
 endif

spa/plugins/support/meson.build

@@ -15,10 +15,10 @@ spa_support_lib = shared_library('spa-support',
 		        install_dir : join_paths(spa_plugindir, 'support'))
 
 
-if get_option('evl')
+if not get_option('evl').disabled()
   evl_inc = include_directories('/usr/evl/include')
   evl_lib = cc.find_library('evl',
-		dirs: ['/usr/evl/lib/'])
+		dirs: ['/usr/evl/lib/'], required: get_option('evl'))
 
   spa_evl_sources = ['evl-system.c',
 		   'evl-plugin.c']
@@ -42,7 +42,7 @@ spa_dbus_lib = shared_library('spa-dbus',
 		        install_dir : join_paths(spa_plugindir, 'support'))
 
 
-if get_option('systemd') and systemd_dep.found()
+if systemd_dep.found()
   spa_journal_sources = ['journal.c']
 
   spa_journal_lib = shared_library('spa-journal',

src/daemon/meson.build

@@ -77,9 +77,9 @@ executable('pipewire-pulse',
 #  )
 #endif
 
-if get_option('media-session')
+if not get_option('media-session').disabled()
   subdir('media-session.d')
 endif
-if get_option('systemd') and systemd.found()
+if systemd.found()
   subdir('systemd')
 endif

src/daemon/systemd/meson.build

@@ -1,6 +1,6 @@
-if get_option('systemd-system-service')
+if not get_option('systemd-system-service').disabled()
   subdir('system')
 endif
-if get_option('systemd-user-service')
+if not get_option('systemd-user-service').disabled()
   subdir('user')
 endif

src/daemon/systemd/system/meson.build

@@ -12,7 +12,7 @@ configure_file(input : 'pipewire.service.in',
                configuration : systemd_config,
                install_dir : systemd_system_services_dir)
 
-if get_option('media-session')
+if not get_option('media-session').disabled()
   configure_file(input : 'pipewire-media-session.service.in',
                output : 'pipewire-media-session.service',
                configuration : systemd_config,

src/daemon/systemd/user/meson.build

@@ -22,7 +22,7 @@ configure_file(input : 'pipewire-pulse.service.in',
                configuration : systemd_config,
                install_dir : systemd_user_services_dir)
 
-if get_option('media-session')
+if not get_option('media-session').disabled()
   configure_file(input : 'pipewire-media-session.service.in',
                output : 'pipewire-media-session.service',
                configuration : systemd_config,

src/examples/meson.build

@@ -65,7 +65,7 @@ executable('export-spa-device',
   dependencies : [pipewire_dep, mathlib],
 )
 
-if get_option('media-session') and alsa_dep.found()
+if alsa_dep.found()
   executable('pipewire-media-session',
     'media-session/access-flatpak.c',
     'media-session/access-portal.c',
@@ -94,6 +94,8 @@ if get_option('media-session') and alsa_dep.found()
     install: true,
     dependencies : [dbus_dep, pipewire_dep, alsa_dep, mathlib],
 )
+elif get_option('media-session').enabled() and not alsa_dep.found()
+  error('`media-session` is enabled but required dependency `alsa` not found.')
 endif
 
 executable('pw-reserve',

src/gst/meson.build

@@ -8,7 +8,7 @@ pipewire_gst_sources = [
   'gstpipewiresrc.c',
 ]
 
-if get_option('gstreamer-device-provider')
+if not get_option('gstreamer-device-provider').disabled()
   pipewire_gst_sources += [ 'gstpipewiredeviceprovider.c' ]
 endif
 
@@ -31,7 +31,9 @@ pipewire_gst = shared_library('gstpipewire',
     pipewire_gst_sources,
     c_args : pipewire_gst_c_args,
     include_directories : [configinc, spa_inc],
-    dependencies : [gobject_dep, glib_dep, gio_dep, gst_dep, pipewire_dep],
+    dependencies : [gst_dep, pipewire_dep],
     install : true,
     install_dir : '@0@/gstreamer-1.0'.format(get_option('libdir')),
 )
+
+plugins = [pipewire_gst]

src/meson.build

@@ -4,13 +4,11 @@ subdir('extensions')
 subdir('daemon')
 subdir('tools')
 subdir('modules')
-if get_option('examples')
+if not get_option('examples').disabled()
   subdir('examples')
 endif
-if get_option('tests')
+if not get_option('tests').disabled()
   subdir('tests')
 endif
 
-if get_option('gstreamer')
+subdir('gst')
-  subdir('gst')
-endif

src/modules/meson.build

@@ -69,7 +69,7 @@ pipewire_module_link_factory = shared_library('pipewire-module-link-factory',
 
 pipewire_module_protocol_deps = [mathlib, dl_lib, pipewire_dep]
 
-if get_option('systemd')
+if systemd_dep.found()
   pipewire_module_protocol_deps += systemd_dep
 endif
 

src/tools/meson.build

@@ -54,7 +54,7 @@ if ncurses_dep.found()
   )
 endif
 
-if get_option('pw-cat') and sndfile_dep.found()
+if not get_option('pw-cat').disabled() and sndfile_dep.found()
 
   pwcat_sources = [
     'pw-cat.c',
@@ -80,5 +80,6 @@ if get_option('pw-cat') and sndfile_dep.found()
     cmd = 'ln -fs @0@ $DESTDIR@1@'.format('pw-cat', dst)
     meson.add_install_script('sh', '-c', cmd)
   endforeach
-
+elif not sndfile_dep.found() and get_option('pw-cat').enabled()
+	error('pw-cat is enabled but required dependency `sndfile` was not found.')
 endif