commit:     edbd9046ecb5bcb70f5d97ebb8e623473fdf0b4b
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Wed Jul 12 10:55:21 2023 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Wed Jul 12 10:55:21 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=edbd9046

media-video/pipewire: add 0.3.74

Signed-off-by: Sam James <sam <AT> gentoo.org>

 media-video/pipewire/Manifest               |   1 +
 media-video/pipewire/pipewire-0.3.74.ebuild | 466 ++++++++++++++++++++++++++++
 2 files changed, 467 insertions(+)

diff --git a/media-video/pipewire/Manifest b/media-video/pipewire/Manifest
index e49ec1a99294..436cff1a76dc 100644
--- a/media-video/pipewire/Manifest
+++ b/media-video/pipewire/Manifest
@@ -2,3 +2,4 @@ DIST pipewire-0.3.70.tar.bz2 1573378 BLAKE2B 
3824106cba9c1b0a82c6d8889b2b1473f4b
 DIST pipewire-0.3.71.tar.bz2 1592332 BLAKE2B 
ff6483a040285cd7a7cc10878cc88b61a0e01c0376ab64ef84f753b300b61da23211bc1b50208da7f1054d6ddf08092e81cbf29df508aad3bc93f20742a2f735
 SHA512 
465388faaf0f7fcce21fdbcd7a1705ef524c35e267c3f123b1025c34133fc418194abb9e22d89e60c9acc1417b25d655112fd9ef342e26ca9b8bc26013b09cb3
 DIST pipewire-0.3.72.tar.bz2 1622951 BLAKE2B 
e3334410b551ba155dc79baecdd85fa5f214483ab53d11cc9b59ec2a0549957b67048d621ff1881ea927ba315d41c32ba3df97435453ff68173e2c450bf216aa
 SHA512 
f105a2afdc00a81cb8c95c57645257109fd3ac1bd0608eb59969473fd94600c8ecf1d3f51abebcf7f9d70307568b2f5f66c7480a014b3955bcb992d92ca3ff43
 DIST pipewire-0.3.73.tar.bz2 1627336 BLAKE2B 
cf26a0028f4a7df966e8ee1739a799cbe418ea15d8a2f292d2b6937f7029e8de3ae22ff8664936e200e48c024c0e58d2a0fd67e98e889490a1a6149276ab9ce3
 SHA512 
16ba011a394f520259f9f98641149bbfd6b910b3210b7ff62c0b3ed8c12a00ec0611bfa83316e8173138b034e30b9cb0ed982c2d1ac840ecf69405755d2a68f6
+DIST pipewire-0.3.74.tar.bz2 1627888 BLAKE2B 
e37fd8012fe10e52e78cb7d49fecfd6d84fb5cec4dcbaa33def8cd2c7c0efacc219e55c3ae0f732f576afe244399067368c09665dc34b06b6201a4c5ebd9ebd3
 SHA512 
8b916806378363b44cb41a73d4ae70a7b31a0c73b7e62f8c3564e976324b4004104dd8c843a4fae64ecfca8a71e3412cfdfe84ff9663958c46701fc65ead3751

diff --git a/media-video/pipewire/pipewire-0.3.74.ebuild 
b/media-video/pipewire/pipewire-0.3.74.ebuild
new file mode 100644
index 000000000000..f4759dc2e89a
--- /dev/null
+++ b/media-video/pipewire/pipewire-0.3.74.ebuild
@@ -0,0 +1,466 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# 1. Please regularly check (even at the point of bumping) Fedora's packaging
+# for needed backports at 
https://src.fedoraproject.org/rpms/pipewire/tree/rawhide.
+#
+# 2. Upstream also sometimes amend release notes for the previous release to 
mention
+# needed patches, e.g. 
https://gitlab.freedesktop.org/pipewire/pipewire/-/tags/0.3.55#distros
+#
+# 3. Keep an eye on git master (for both PipeWire and WirePlumber) as things
+# continue to move quickly. It's not uncommon for fixes to be made shortly
+# after releases.
+
+PYTHON_COMPAT=( python3_{10..11} )
+
+inherit flag-o-matic meson-multilib optfeature prefix python-any-r1 systemd 
tmpfiles udev
+
+if [[ ${PV} == 9999 ]]; then
+       EGIT_REPO_URI="https://gitlab.freedesktop.org/${PN}/${PN}.git";
+       inherit git-r3
+else
+       if [[ ${PV} == *_p* ]] ; then
+               MY_COMMIT=""
+               
SRC_URI="https://gitlab.freedesktop.org/pipewire/pipewire/-/archive/${MY_COMMIT}/pipewire-${MY_COMMIT}.tar.bz2
 -> ${P}.tar.bz2"
+               S="${WORKDIR}"/${PN}-${MY_COMMIT}
+       else
+               
SRC_URI="https://gitlab.freedesktop.org/${PN}/${PN}/-/archive/${PV}/${P}.tar.bz2";
+       fi
+
+       KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86"
+fi
+
+DESCRIPTION="Multimedia processing graphs"
+HOMEPAGE="https://pipewire.org/";
+
+LICENSE="MIT LGPL-2.1+ GPL-2"
+# ABI was broken in 0.3.42 for 
https://gitlab.freedesktop.org/pipewire/wireplumber/-/issues/49
+SLOT="0/0.4"
+IUSE="bluetooth dbus doc echo-cancel extra ffmpeg flatpak gstreamer gsettings 
ieee1394 jack-client jack-sdk liblc3 lv2"
+IUSE+=" modemmanager pipewire-alsa readline sound-server ssl system-service 
systemd test v4l X zeroconf"
+
+# Once replacing system JACK libraries is possible, it's likely that
+# jack-client IUSE will need blocking to avoid users accidentally
+# configuring their systems to send PW sink output to the emulated
+# JACK's sink - doing so is likely to yield no audio, cause a CPU
+# cycles consuming loop (and may even cause GUI crashes)!
+
+# - TODO: There should be "sound-server? ( || ( alsa bluetooth ) )" here, but 
ALSA is always enabled
+# - TODO: Pulseaudio alsa plugin performs runtime check that pulseaudio server 
connection will work
+#   which provides adequate guarantee that alsa-lib will be able to provide 
audio services.
+#   If that works, pulseaudio defaults are loaded into alsa-lib runtime 
replacing default PCM and CTL.
+#   When pipewire-alsa will be able to perform similar check, pipewire-alsa 
can be enabled unconditionally.
+# - ffmpeg is only used for pw-cat. We don't build the spa plugin which 
receives barely any activity.
+REQUIRED_USE="
+       ffmpeg? ( extra )
+       bluetooth? ( dbus )
+       jack-sdk? ( !jack-client )
+       modemmanager? ( bluetooth )
+       system-service? ( systemd )
+       !sound-server? ( !pipewire-alsa )
+       jack-client? ( dbus )
+"
+
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+       >=dev-util/meson-0.59
+       virtual/pkgconfig
+       ${PYTHON_DEPS}
+       $(python_gen_any_dep 'dev-python/docutils[${PYTHON_USEDEP}]')
+       dbus? ( dev-util/gdbus-codegen )
+       doc? (
+               app-doc/doxygen
+               media-gfx/graphviz
+       )
+"
+# While udev could technically be optional, it's needed for a numebr of 
options,
+# and not really worth it, bug #877769.
+RDEPEND="
+       acct-group/audio
+       acct-group/pipewire
+       media-libs/alsa-lib
+       sys-libs/ncurses:=[unicode(+)]
+       virtual/libintl[${MULTILIB_USEDEP}]
+       virtual/libudev[${MULTILIB_USEDEP}]
+       bluetooth? (
+               dev-libs/glib
+               media-libs/fdk-aac
+               media-libs/libldac
+               media-libs/libfreeaptx
+               media-libs/opus
+               media-libs/sbc
+               >=net-wireless/bluez-4.101:=
+               virtual/libusb:1
+       )
+       dbus? ( sys-apps/dbus[${MULTILIB_USEDEP}] )
+       echo-cancel? ( media-libs/webrtc-audio-processing:0 )
+       extra? ( >=media-libs/libsndfile-1.0.20 )
+       ffmpeg? ( media-video/ffmpeg:= )
+       flatpak? ( dev-libs/glib )
+       gstreamer? (
+               >=dev-libs/glib-2.32.0:2
+               >=media-libs/gstreamer-1.10.0:1.0
+               media-libs/gst-plugins-base:1.0
+       )
+       gsettings? ( >=dev-libs/glib-2.26.0:2 )
+       ieee1394? ( media-libs/libffado[${MULTILIB_USEDEP}] )
+       jack-client? ( >=media-sound/jack2-1.9.10:2[dbus] )
+       jack-sdk? (
+               !media-sound/jack-audio-connection-kit
+               !media-sound/jack2
+       )
+       liblc3? ( media-sound/liblc3 )
+       lv2? ( media-libs/lilv )
+       modemmanager? ( >=net-misc/modemmanager-1.10.0 )
+       pipewire-alsa? ( >=media-libs/alsa-lib-1.1.7[${MULTILIB_USEDEP}] )
+       sound-server? ( !media-sound/pulseaudio-daemon )
+       readline? ( sys-libs/readline:= )
+       ssl? ( dev-libs/openssl:= )
+       systemd? ( sys-apps/systemd )
+       system-service? ( acct-user/pipewire )
+       v4l? ( media-libs/libv4l )
+       X? (
+               media-libs/libcanberra
+               x11-libs/libX11
+               x11-libs/libXfixes
+       )
+       zeroconf? ( net-dns/avahi )
+"
+
+DEPEND="${RDEPEND}"
+
+# TODO: Consider use cases where pipewire is not used for driving audio
+# Doing so with WirePlumber currently involves editing Lua scripts
+PDEPEND=">=media-video/wireplumber-0.4.8-r3"
+
+# Present RDEPEND that are currently always disabled due to the PW
+# code using them being required to be disabled by Gentoo guidelines
+# (i.e. developer binaries not meant for users) and unready code
+#      media-libs/libsdl2
+#      >=media-libs/vulkan-loader-1.1.69
+#
+# Ditto for DEPEND
+#      >=dev-util/vulkan-headers-1.1.69
+
+DOCS=( {README,INSTALL}.md NEWS )
+
+PATCHES=(
+       "${FILESDIR}"/${PN}-0.3.25-enable-failed-mlock-warning.patch
+)
+
+python_check_deps() {
+       python_has_version "dev-python/docutils[${PYTHON_USEDEP}]"
+}
+
+src_prepare() {
+       default
+
+       # Used for upstream backports
+       [[ -d "${FILESDIR}"/${PV} ]] && eapply "${FILESDIR}"/${PV}
+}
+
+multilib_src_configure() {
+       # https://bugs.gentoo.org/838301
+       filter-flags -fno-semantic-interposition
+
+       local emesonargs=(
+               -Ddocdir="${EPREFIX}"/usr/share/doc/${PF}
+
+               $(meson_feature dbus)
+               $(meson_native_use_feature zeroconf avahi)
+               $(meson_native_use_feature doc docs)
+               $(meson_native_enabled examples) # TODO: Figure out if this is 
still important now that media-session gone
+               $(meson_native_enabled man)
+               $(meson_feature test tests)
+               -Dinstalled_tests=disabled # Matches upstream; Gentoo never 
installs tests
+               $(meson_feature ieee1394 libffado)
+               $(meson_native_use_feature gstreamer)
+               $(meson_native_use_feature gstreamer gstreamer-device-provider)
+               $(meson_native_use_feature gsettings)
+               $(meson_native_use_feature systemd)
+
+               $(meson_native_use_feature system-service 
systemd-system-service)
+               -Dsystemd-system-unit-dir="$(systemd_get_systemunitdir)"
+               -Dsystemd-user-unit-dir="$(systemd_get_userunitdir)"
+
+               $(meson_native_use_feature systemd systemd-user-service)
+               $(meson_feature pipewire-alsa) # Allows integrating ALSA apps 
into PW graph
+               -Dspa-plugins=enabled
+               -Dalsa=enabled # Allows using kernel ALSA for sound I/O (NOTE: 
media-session is gone so IUSE=alsa/spa_alsa/alsa-backend might be possible)
+               -Dcompress-offload=disabled # TODO: tinycompress unpackaged
+               -Daudiomixer=enabled # Matches upstream
+               -Daudioconvert=enabled # Matches upstream
+               $(meson_native_use_feature bluetooth bluez5)
+               $(meson_native_use_feature bluetooth bluez5-backend-hsp-native)
+               $(meson_native_use_feature bluetooth bluez5-backend-hfp-native)
+               # 
https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/1379
+               $(meson_native_use_feature modemmanager 
bluez5-backend-native-mm)
+               $(meson_native_use_feature bluetooth bluez5-backend-ofono)
+               $(meson_native_use_feature bluetooth bluez5-backend-hsphfpd)
+               $(meson_native_use_feature bluetooth bluez5-codec-aac)
+               $(meson_native_use_feature bluetooth bluez5-codec-aptx)
+               $(meson_native_use_feature bluetooth bluez5-codec-ldac)
+               $(meson_native_use_feature bluetooth opus)
+               $(meson_native_use_feature bluetooth bluez5-codec-opus)
+               $(meson_native_use_feature bluetooth libusb) # At least for now 
only used by bluez5 native (quirk detection of adapters)
+               $(meson_native_use_feature echo-cancel echo-cancel-webrtc) 
#807889
+               -Dcontrol=enabled # Matches upstream
+               -Daudiotestsrc=enabled # Matches upstream
+               -Dffmpeg=disabled # Disabled by upstream and no major 
developments to spa/plugins/ffmpeg/ since May 2020
+               $(meson_native_use_feature ffmpeg pw-cat-ffmpeg)
+               $(meson_native_use_feature flatpak)
+               -Dpipewire-jack=enabled # Allows integrating JACK apps into PW 
graph
+               $(meson_native_use_feature jack-client jack) # Allows PW to act 
as a JACK client
+               $(meson_use jack-sdk jack-devel)
+               $(usex jack-sdk "-Dlibjack-path=${EPREFIX}/usr/$(get_libdir)" 
'')
+               -Dsupport=enabled # Miscellaneous/common plugins, such as null 
sink
+               -Devl=disabled # Matches upstream
+               -Dtest=disabled # fakesink and fakesource plugins
+               -Dbluez5-codec-lc3plus=disabled # unpackaged
+               $(meson_native_use_feature liblc3 bluez5-codec-lc3)
+               $(meson_native_use_feature lv2)
+               $(meson_native_use_feature v4l v4l2)
+               -Dlibcamera=disabled # libcamera is not in Portage tree
+               $(meson_native_use_feature readline)
+               $(meson_native_use_feature ssl raop)
+               -Dvideoconvert=enabled # Matches upstream
+               -Dvideotestsrc=enabled # Matches upstream
+               -Dvolume=enabled # Matches upstream
+               -Dvulkan=disabled # Uses pre-compiled Vulkan compute shader to 
provide a CGI video source (dev thing; disabled by upstream)
+               $(meson_native_use_feature extra pw-cat)
+               -Dudev=enabled
+               -Dudevrulesdir="${EPREFIX}$(get_udevdir)/rules.d"
+               -Dsdl2=disabled # Controls SDL2 dependent code (currently only 
examples when -Dinstalled_tests=enabled which we never install)
+               -Dlibmysofa=disabled # libmysofa is unpackaged
+               $(meson_native_use_feature extra sndfile) # Enables libsndfile 
dependent code (currently only pw-cat)
+               -Dsession-managers="[]" # All available session managers are 
now their own projects, so there's nothing to build
+
+               # We still have <5.16 kernels packaged in Gentoo and 6.1 (LTS) 
only
+               # just became stable, with 5.15 being the previous LTS. Many 
people
+               # are still on it.
+               -Dpam-defaults-install=true
+
+               # Just for bell sounds in X11 right now.
+               $(meson_native_use_feature X x11)
+               $(meson_native_use_feature X x11-xfixes)
+               $(meson_native_use_feature X libcanberra)
+       )
+
+       meson_src_configure
+}
+
+multilib_src_test() {
+       meson_src_test --timeout-multiplier 10
+}
+
+multilib_src_install() {
+       # Our custom DOCS do not exist in multilib source directory
+       DOCS= meson_src_install
+}
+
+multilib_src_install_all() {
+       einstalldocs
+
+       if use pipewire-alsa; then
+               dodir /etc/alsa/conf.d
+
+               # Install pipewire conf loader hook
+               insinto /usr/share/alsa/alsa.conf.d
+               doins "${FILESDIR}"/99-pipewire-default-hook.conf
+               eprefixify 
"${ED}"/usr/share/alsa/alsa.conf.d/99-pipewire-default-hook.conf
+
+               # These will break if someone has /etc that is a symbolic link 
to a subfolder! See #724222
+               # And the current dosym8 -r implementation is likely affected 
by the same issue, too.
+               dosym ../../../usr/share/alsa/alsa.conf.d/50-pipewire.conf 
/etc/alsa/conf.d/50-pipewire.conf
+               dosym 
../../../usr/share/alsa/alsa.conf.d/99-pipewire-default-hook.conf 
/etc/alsa/conf.d/99-pipewire-default-hook.conf
+       fi
+
+       # Enable required wireplumber alsa and bluez monitors
+       if use sound-server; then
+               dodir /etc/wireplumber/main.lua.d
+               echo "alsa_monitor.enabled = true" > 
"${ED}"/etc/wireplumber/main.lua.d/89-gentoo-sound-server-enable-alsa-monitor.lua
 || die
+
+               dodir /etc/wireplumber/bluetooth.lua.d
+               echo "bluez_monitor.enabled = true" > 
"${ED}"/etc/wireplumber/bluetooth.lua.d/89-gentoo-sound-server-enable-bluez-monitor.lua
 || die
+       fi
+
+       if use system-service; then
+               newtmpfiles - pipewire.conf <<-EOF || die
+                       d /run/pipewire 0755 pipewire pipewire - -
+               EOF
+       fi
+
+       if ! use systemd; then
+               insinto /etc/xdg/autostart
+               newins "${FILESDIR}"/pipewire.desktop-r2 pipewire.desktop
+
+               exeinto /usr/bin
+               newexe "${FILESDIR}"/gentoo-pipewire-launcher.in-r2 
gentoo-pipewire-launcher
+
+               doman "${FILESDIR}"/gentoo-pipewire-launcher.1
+
+               # Disable pipewire-pulse if sound-server is disabled.
+               if ! use sound-server ; then
+                       sed -i -s '/pipewire -c pipewire-pulse.conf/s/^/#/' 
"${ED}"/usr/bin/gentoo-pipewire-launcher || die
+               fi
+
+               eprefixify "${ED}"/usr/bin/gentoo-pipewire-launcher
+       fi
+}
+
+pkg_postrm() {
+       udev_reload
+}
+
+pkg_preinst() {
+       HAD_SOUND_SERVER=0
+       HAD_SYSTEM_SERVICE=0
+
+       if has_version "media-video/pipewire[sound-server(-)]" ; then
+               HAD_SOUND_SERVER=1
+       fi
+
+       if has_version "media-video/pipewire[system-service(-)]" ; then
+               HAD_SYSTEM_SERVICE=1
+       fi
+}
+
+pkg_postinst() {
+       udev_reload
+
+       use system-service && tmpfiles_process pipewire.conf
+
+       local ver
+       for ver in ${REPLACING_VERSIONS} ; do
+               if ver_test ${ver} -le 0.3.66-r1 ; then
+                       elog ">=pipewire-0.3.66 uses the 'pipewire' group to 
manage permissions"
+                       elog "and limits needed to function smoothly:"
+                       elog
+                       elog "1. Please make sure your user is in the 
'pipewire' group for"
+                       elog "the best experience with realtime scheduling (PAM 
limits behavior)!"
+                       elog "You can add your account with:"
+                       elog " usermod -aG pipewire <youruser>"
+                       elog
+                       elog "2. For the best experience with fast user 
switching, it is recommended"
+                       elog "that you remove your user from the 'audio' group 
unless you rely on the"
+                       elog "audio group for device access control or ACLs.:"
+                       elog " usermod -rG audio <youruser>"
+                       elog
+
+                       if ! use jack-sdk ; then
+                               elog
+                               elog "JACK emulation is incomplete and not all 
programs will work. PipeWire's"
+                               elog "alternative libraries have been installed 
to a non-default location."
+                               elog "To use them, put pw-jack <application> 
before every JACK application."
+                               elog "When using pw-jack, do not run 
jackd/jackdbus. However, a virtual/jack"
+                               elog "provider is still needed to compile the 
JACK applications themselves."
+                               elog
+                       fi
+
+                       if use systemd ; then
+                               ewarn
+                               ewarn "PipeWire daemon startup has been moved 
to a launcher script!"
+                               ewarn "Make sure that 
${EROOT}/etc/pipewire/pipewire.conf either does not exist or no"
+                               ewarn "longer is set to start a session manager 
or PulseAudio compatibility daemon (all"
+                               ewarn "lines similar to '{ path = 
/usr/bin/pipewire*' should be commented out)"
+                               ewarn
+                               ewarn "Those manually starting 
/usr/bin/pipewire via .xinitrc or similar _must_ from"
+                               ewarn "now on start 
${EROOT}/usr/bin/gentoo-pipewire-launcher instead! It is highly"
+                               ewarn "advised that a D-Bus user session is set 
up before starting the script."
+                               ewarn
+                       fi
+
+                       if use sound-server && ( has_version 
'media-sound/pulseaudio[daemon]' || has_version 'media-sound/pulseaudio-daemon' 
) ; then
+                               elog
+                               elog "This ebuild auto-enables PulseAudio 
replacement. Because of that, users"
+                               elog "are recommended to edit pulseaudio client 
configuration files:"
+                               elog "${EROOT}/etc/pulse/client.conf and 
${EROOT}/etc/pulse/client.conf.d/enable-autospawn.conf"
+                               elog "if it exists, and disable autospawning of 
the original daemon by setting:"
+                               elog
+                               elog "  autospawn = no"
+                               elog
+                               elog "Please note that the semicolon (;) must 
_NOT_ be at the beginning of the line!"
+                               elog
+                               elog "Alternatively, if replacing PulseAudio 
daemon is not desired, edit"
+                               elog "${EROOT}/usr/bin/gentoo-pipewire-launcher 
by commenting out the relevant"
+                               elog "command:"
+                               elog
+                               elog "#${EROOT}/usr/bin/pipewire -c 
pipewire-pulse.conf &"
+                               elog
+                       fi
+
+                       if has_version 'net-misc/ofono' ; then
+                               ewarn "Native backend has become default. 
Please disable oFono via:"
+                               if systemd_is_booted ; then
+                                       ewarn "systemctl disable ofono"
+                               else
+                                       ewarn "rc-update delete ofono"
+                               fi
+                       fi
+               fi
+       done
+
+       if [[ ${HAD_SOUND_SERVER} -eq 0 || -z ${REPLACING_VERSIONS} ]] ; then
+               # TODO: We could drop most of this if we set up systemd presets?
+               # They're worth looking into because right now, the 
out-of-the-box experience
+               # is automatic on OpenRC, while it needs manual intervention on 
systemd.
+               if use sound-server && use systemd ; then
+                       elog
+                       elog "When switching from PulseAudio, you may need to 
disable PulseAudio:"
+                       elog
+                       elog "  systemctl --user disable pulseaudio.service 
pulseaudio.socket"
+                       elog
+                       elog "To use PipeWire, the user units must be manually 
enabled"
+                       elog "by running this command as each user you use for 
desktop activities:"
+                       elog
+                       elog "  systemctl --user enable pipewire.socket 
pipewire-pulse.socket"
+                       elog
+                       elog "A reboot is recommended to avoid interferences 
from still running"
+                       elog "PulseAudio daemon."
+                       elog
+                       elog "Both new users and those upgrading need to enable 
WirePlumber"
+                       elog "for relevant users:"
+                       elog
+                       elog "  systemctl --user disable 
pipewire-media-session.service"
+                       elog "  systemctl --user --force enable 
wireplumber.service"
+                       elog
+                       elog "Root user may replace --user with --global to 
change system default"
+                       elog "configuration for all of the above commands."
+                       elog
+               fi
+
+               if ! use sound-server ; then
+                       ewarn
+                       ewarn "USE=sound-server is disabled! If you want 
PipeWire to provide"
+                       ewarn "your sound, please enable it. See the wiki at"
+                       ewarn 
"https://wiki.gentoo.org/wiki/PipeWire#Replacing_PulseAudio";
+                       ewarn "for more details."
+                       ewarn
+               fi
+       fi
+
+       if use system-service && [[ ${HAD_SYSTEM_SERVICE} -eq 0 || -z 
${REPLACING_VERSIONS} ]] ; then
+               ewarn
+               ewarn "You have enabled the system-service USE flag, which 
installs"
+               ewarn "the system-wide systemd units that enable PipeWire to 
run as a system"
+               ewarn "service. This is more than likely NOT what you want. You 
are strongly"
+               ewarn "advised not to enable this mode and instead stick with 
systemd user"
+               ewarn "units. The default configuration files will likely not 
work out of the"
+               ewarn "box, and you are on your own with configuration."
+               ewarn
+       fi
+
+       elog "For latest tips and tricks, troubleshooting information, and 
documentation"
+       elog "in general, please refer to https://wiki.gentoo.org/wiki/PipeWire";
+       elog
+
+       optfeature_header "The following can be installed for optional runtime 
features:"
+       optfeature "restricted realtime capabilities via D-Bus" sys-auth/rtkit
+
+       if use sound-server && ! use pipewire-alsa; then
+               optfeature "ALSA plugin to use PulseAudio interface for output" 
"media-plugins/alsa-plugins[pulseaudio]"
+       fi
+}

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