commit:     7805d72c8427ae393bd4ab6facf7de83ae5c912c
Author:     Igor V. Kovalenko <igor.v.kovalenko <AT> gmail <DOT> com>
AuthorDate: Sat Feb 24 09:55:15 2024 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Sat Feb 24 10:03:31 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7805d72c

media-sound/pulseaudio-daemon: Backport alsa UCM handling assertion fix to 17.0

Bug: https://bugs.gentoo.org/925345
Signed-off-by: Igor V. Kovalenko <igor.v.kovalenko <AT> gmail.com>
Closes: https://github.com/gentoo/gentoo/pull/35512
Signed-off-by: Sam James <sam <AT> gentoo.org>

 .../files/pulseaudio-17.0-pr801.patch              |  95 +++++
 .../files/pulseaudio-17.0-pr802.patch              |  64 ++++
 .../pulseaudio-daemon-17.0-r1.ebuild               | 386 +++++++++++++++++++++
 3 files changed, 545 insertions(+)

diff --git a/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr801.patch 
b/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr801.patch
new file mode 100644
index 000000000000..6e1bd338992c
--- /dev/null
+++ b/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr801.patch
@@ -0,0 +1,95 @@
+From f5cacd94abcc47003bd88ad7ca1450de649ffb15 Mon Sep 17 00:00:00 2001
+From: Alper Nebi Yasak <[email protected]>
+Date: Thu, 30 Nov 2023 20:17:22 +0300
+Subject: [PATCH] alsa-ucm: Check UCM verb before working with device status
+
+Some versions of the ALSA libraries run into a segmentation fault when
+we query a UCM device/modifier status without first setting a UCM verb.
+It's not a reasonable thing to do anyway, so check for this case and
+return an error. Also do the check in other helpers.
+
+Signed-off-by: Alper Nebi Yasak <[email protected]>
+Part-of: 
<https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/801>
+---
+ src/modules/alsa/alsa-ucm.c | 30 ++++++++++++++++++++++++++++++
+ 1 file changed, 30 insertions(+)
+
+diff --git a/src/modules/alsa/alsa-ucm.c b/src/modules/alsa/alsa-ucm.c
+index bb9438f79..7f5136249 100644
+--- a/src/modules/alsa/alsa-ucm.c
++++ b/src/modules/alsa/alsa-ucm.c
+@@ -624,6 +624,11 @@ static long ucm_device_status(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_device *dev)
+     char *devstatus;
+     long status = 0;
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to get status for UCM device %s: no UCM verb 
set", dev_name);
++        return -1;
++    }
++
+     devstatus = pa_sprintf_malloc("_devstatus/%s", dev_name);
+     if (snd_use_case_geti(ucm->ucm_mgr, devstatus, &status) < 0) {
+         pa_log_debug("Failed to get status for UCM device %s", dev_name);
+@@ -637,6 +642,11 @@ static long ucm_device_status(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_device *dev)
+ static int ucm_device_disable(pa_alsa_ucm_config *ucm, pa_alsa_ucm_device 
*dev) {
+     const char *dev_name = pa_proplist_gets(dev->proplist, 
PA_ALSA_PROP_UCM_NAME);
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to disable UCM device %s: no UCM verb set", 
dev_name);
++        return -1;
++    }
++
+     /* If any of dev's conflicting devices is enabled, trying to disable
+      * dev gives an error despite the fact that it's already disabled.
+      * Check that dev is enabled to avoid this error. */
+@@ -657,6 +667,11 @@ static int ucm_device_disable(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_device *dev)
+ static int ucm_device_enable(pa_alsa_ucm_config *ucm, pa_alsa_ucm_device 
*dev) {
+     const char *dev_name = pa_proplist_gets(dev->proplist, 
PA_ALSA_PROP_UCM_NAME);
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to enable UCM device %s: no UCM verb set", 
dev_name);
++        return -1;
++    }
++
+     /* We don't need to enable devices that are already enabled */
+     if (ucm_device_status(ucm, dev) > 0) {
+         pa_log_debug("UCM device %s is already enabled", dev_name);
+@@ -707,6 +722,11 @@ static long ucm_modifier_status(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_modifier *m
+     char *modstatus;
+     long status = 0;
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to get status for UCM modifier %s: no UCM verb 
set", mod_name);
++        return -1;
++    }
++
+     modstatus = pa_sprintf_malloc("_modstatus/%s", mod_name);
+     if (snd_use_case_geti(ucm->ucm_mgr, modstatus, &status) < 0) {
+         pa_log_debug("Failed to get status for UCM modifier %s", mod_name);
+@@ -720,6 +740,11 @@ static long ucm_modifier_status(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_modifier *m
+ static int ucm_modifier_disable(pa_alsa_ucm_config *ucm, pa_alsa_ucm_modifier 
*mod) {
+     const char *mod_name = pa_proplist_gets(mod->proplist, 
PA_ALSA_PROP_UCM_NAME);
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to disable UCM modifier %s: no UCM verb set", 
mod_name);
++        return -1;
++    }
++
+     /* We don't need to disable modifiers that are already disabled */
+     if (ucm_modifier_status(ucm, mod) == 0) {
+         pa_log_debug("UCM modifier %s is already disabled", mod_name);
+@@ -738,6 +763,11 @@ static int ucm_modifier_disable(pa_alsa_ucm_config *ucm, 
pa_alsa_ucm_modifier *m
+ static int ucm_modifier_enable(pa_alsa_ucm_config *ucm, pa_alsa_ucm_modifier 
*mod) {
+     const char *mod_name = pa_proplist_gets(mod->proplist, 
PA_ALSA_PROP_UCM_NAME);
+ 
++    if (!ucm->active_verb) {
++        pa_log_error("Failed to disable UCM modifier %s: no UCM verb set", 
mod_name);
++        return -1;
++    }
++
+     /* We don't need to enable modifiers that are already enabled */
+     if (ucm_modifier_status(ucm, mod) > 0) {
+         pa_log_debug("UCM modifier %s is already enabled", mod_name);
+-- 
+GitLab
+

diff --git a/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr802.patch 
b/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr802.patch
new file mode 100644
index 000000000000..3fd2adc0cff4
--- /dev/null
+++ b/media-sound/pulseaudio-daemon/files/pulseaudio-17.0-pr802.patch
@@ -0,0 +1,64 @@
+From ed3d4f0837f670e5e5afb1afa5bcfc8ff05d3407 Mon Sep 17 00:00:00 2001
+From: Alper Nebi Yasak <[email protected]>
+Date: Fri, 1 Dec 2023 13:28:05 +0300
+Subject: [PATCH] alsa-ucm: Replace port device UCM context assertion with an
+ error
+
+The pa_alsa_ucm_set_port() function is passed both a mapping context and
+a device port, and both of these refer to their respective UCM device.
+While switching over to having one port per mapping per UCM device, I
+expected both of these to be the same device struct, so added an assert
+checking so.
+
+This assertion gets triggered when we have multiple UCM verbs declaring
+the same UCM device name. The root cause here is that the ports' UCM
+device references are set once while creating the ports for the card, so
+they happen to be those of a specific verb and may not match those from
+a different UCM verb's profiles' mappings.
+
+Solving the root cause necessitates a larger refactor. What we actually
+assume here is that name of the UCM device is same for both the port and
+the UCM context, which ends up always true in practice. For now, replace
+the assert with a check and error.
+
+Signed-off-by: Alper Nebi Yasak <[email protected]>
+Part-of: 
<https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/802>
+---
+ src/modules/alsa/alsa-ucm.c | 14 ++++++++++++--
+ 1 file changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/src/modules/alsa/alsa-ucm.c b/src/modules/alsa/alsa-ucm.c
+index 7f5136249..018c01739 100644
+--- a/src/modules/alsa/alsa-ucm.c
++++ b/src/modules/alsa/alsa-ucm.c
+@@ -1581,6 +1581,7 @@ int pa_alsa_ucm_set_port(pa_alsa_ucm_mapping_context 
*context, pa_device_port *p
+     pa_alsa_ucm_config *ucm;
+     pa_alsa_ucm_device *dev;
+     pa_alsa_ucm_port_data *data;
++    const char *dev_name, *ucm_dev_name;
+ 
+     pa_assert(context && context->ucm);
+ 
+@@ -1588,8 +1589,17 @@ int pa_alsa_ucm_set_port(pa_alsa_ucm_mapping_context 
*context, pa_device_port *p
+     pa_assert(ucm->ucm_mgr);
+ 
+     data = PA_DEVICE_PORT_DATA(port);
+-    dev = context->ucm_device;
+-    pa_assert(dev == data->device);
++    dev = data->device;
++    pa_assert(dev);
++
++    if (context->ucm_device) {
++        dev_name = pa_proplist_gets(dev->proplist, PA_ALSA_PROP_UCM_NAME);
++        ucm_dev_name = pa_proplist_gets(context->ucm_device->proplist, 
PA_ALSA_PROP_UCM_NAME);
++        if (!pa_streq(dev_name, ucm_dev_name)) {
++            pa_log_error("Failed to set port %s with wrong UCM context: %s", 
dev_name, ucm_dev_name);
++            return -1;
++        }
++    }
+ 
+     return ucm_device_enable(ucm, dev);
+ }
+-- 
+GitLab
+

diff --git a/media-sound/pulseaudio-daemon/pulseaudio-daemon-17.0-r1.ebuild 
b/media-sound/pulseaudio-daemon/pulseaudio-daemon-17.0-r1.ebuild
new file mode 100644
index 000000000000..186c05739322
--- /dev/null
+++ b/media-sound/pulseaudio-daemon/pulseaudio-daemon-17.0-r1.ebuild
@@ -0,0 +1,386 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+
+MY_PV="${PV/_pre*}"
+MY_P="pulseaudio-${MY_PV}"
+inherit bash-completion-r1 gnome2-utils meson optfeature systemd tmpfiles udev
+
+DESCRIPTION="Daemon component of PulseAudio (networked sound server)"
+HOMEPAGE="https://www.freedesktop.org/wiki/Software/PulseAudio/";
+
+if [[ ${PV} = 9999 ]]; then
+       inherit git-r3
+       EGIT_BRANCH="master"
+       EGIT_REPO_URI="https://gitlab.freedesktop.org/pulseaudio/pulseaudio";
+else
+       
SRC_URI="https://freedesktop.org/software/pulseaudio/releases/${MY_P}.tar.xz";
+       KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 
~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
+fi
+
+S="${WORKDIR}/${MY_P}"
+
+# libpulse-simple and libpulse link to libpulse-core; this is daemon's
+# library and can link to gdbm and other GPL-only libraries. In this
+# cases, we have a fully GPL-2 package. Leaving the rest of the
+# GPL-forcing USE flags for those who use them.
+LICENSE="!gdbm? ( LGPL-2.1 ) gdbm? ( GPL-2 )"
+
+SLOT="0"
+
+# +alsa-plugin as discussed in bug #519530
+# TODO: Find out why webrtc-aec is + prefixed - there's already the always 
available speexdsp-aec
+# NOTE: The current ebuild sets +X almost certainly just for the 
pulseaudio.desktop file
+IUSE="+alsa +alsa-plugin aptx +asyncns bluetooth dbus elogind equalizer fftw 
+gdbm +glib gstreamer jack ldac lirc
+ofono-headset +orc oss selinux sox ssl systemd system-wide tcpd test +udev 
valgrind +webrtc-aec +X zeroconf"
+
+RESTRICT="!test? ( test )"
+
+# See "*** BLUEZ support not found (requires D-Bus)" in configure.ac
+# Basically all IUSE are either ${MULTILIB_USEDEP} for client libs or they 
belong under !daemon ()
+# We duplicate alsa-plugin, {native,ofono}-headset under daemon to let users 
deal with them at once
+REQUIRED_USE="
+       ?? ( elogind systemd )
+       alsa-plugin? ( alsa )
+       aptx? ( bluetooth )
+       bluetooth? ( dbus )
+       equalizer? ( dbus )
+       ldac? ( bluetooth )
+       ofono-headset? ( bluetooth )
+       udev? ( || ( alsa oss ) )
+       zeroconf? ( dbus )
+"
+
+# NOTE:
+# - libpcre needed in some cases, bug #472228
+# - media-libs/speexdsp is providing echo canceller implementation and used in 
resampler
+# TODO: libatomic_ops is only needed on some architectures and conditions, and 
then at runtime too
+gstreamer_deps="
+       media-libs/gst-plugins-base
+       >=media-libs/gstreamer-1.14
+"
+COMMON_DEPEND="
+       ~media-libs/libpulse-${PV}[dbus?,glib?,systemd?,valgrind?,X?]
+       >=media-libs/libpulse-16.99.1
+       dev-libs/libatomic_ops
+       >=media-libs/libsndfile-1.0.20
+       >=media-libs/speexdsp-1.2
+       alsa? ( >=media-libs/alsa-lib-1.0.24 )
+       aptx? ( ${gstreamer_deps} )
+       asyncns? ( >=net-libs/libasyncns-0.1 )
+       bluetooth? (
+               >=net-wireless/bluez-5
+               media-libs/sbc
+       )
+       dev-libs/libltdl
+       sys-kernel/linux-headers
+       >=sys-libs/libcap-2.22-r2
+       dbus? ( >=sys-apps/dbus-1.4.12 )
+       elibc_mingw? ( dev-libs/libpcre:3 )
+       elogind? ( sys-auth/elogind )
+       equalizer? (
+               sci-libs/fftw:3.0=
+       )
+       fftw? (
+               sci-libs/fftw:3.0=
+       )
+       gdbm? ( sys-libs/gdbm:= )
+       glib? ( >=dev-libs/glib-2.28.0:2 )
+       gstreamer? (
+               ${gstreamer_deps}
+               >=dev-libs/glib-2.26.0:2
+       )
+       jack? ( virtual/jack )
+       ldac? ( ${gstreamer_deps} )
+       lirc? ( app-misc/lirc )
+       ofono-headset? ( >=net-misc/ofono-1.13 )
+       orc? ( >=dev-lang/orc-0.4.15 )
+       selinux? ( sec-policy/selinux-pulseaudio )
+       sox? ( >=media-libs/soxr-0.1.1 )
+       ssl? ( dev-libs/openssl:= )
+       systemd? ( sys-apps/systemd:= )
+       tcpd? ( sys-apps/tcp-wrappers )
+       udev? ( >=virtual/udev-143[hwdb(+)] )
+       valgrind? ( dev-debug/valgrind )
+       webrtc-aec? ( >=media-libs/webrtc-audio-processing-1.3:1 )
+       X? (
+               >=x11-libs/libxcb-1.6
+               x11-libs/libICE
+               x11-libs/libSM
+               >=x11-libs/libX11-1.4.0
+               >=x11-libs/libXtst-1.0.99.2
+       )
+       zeroconf? ( >=net-dns/avahi-0.6.12[dbus] )
+"
+
+# pulseaudio ships a bundle xmltoman, which uses XML::Parser
+DEPEND="
+       ${COMMON_DEPEND}
+       test? ( >=dev-libs/check-0.9.10 )
+       X? ( x11-base/xorg-proto )
+"
+
+# alsa-utils dep is for the alsasound init.d script (see bug 155707); TODO: 
read it
+# NOTE: Only system-wide needs acct-group/audio unless elogind/systemd is not 
used
+RDEPEND="
+       ${COMMON_DEPEND}
+       system-wide? (
+               alsa? ( media-sound/alsa-utils )
+               acct-user/pulse
+               acct-group/audio
+               acct-group/pulse-access
+       )
+       bluetooth? (
+               ldac? ( media-plugins/gst-plugins-ldac )
+               aptx? ( media-plugins/gst-plugins-openaptx )
+       )
+       !media-video/pipewire[sound-server(+)]
+"
+unset gstreamer_deps
+
+# This is a PDEPEND to avoid a circular dep
+PDEPEND="
+       alsa? ( alsa-plugin? ( 
>=media-plugins/alsa-plugins-1.0.27-r1[pulseaudio] ) )
+"
+
+BDEPEND="
+       dev-lang/perl
+       dev-perl/XML-Parser
+       sys-devel/gettext
+       sys-devel/m4
+       virtual/libiconv
+       virtual/libintl
+       virtual/pkgconfig
+       orc? ( >=dev-lang/orc-0.4.15 )
+       system-wide? ( dev-util/unifdef )
+"
+
+DOCS=( NEWS README )
+
+# patches merged upstream, to be removed with 17.1 or later bump
+PATCHES=(
+       "${FILESDIR}"/pulseaudio-17.0-pr801.patch
+       "${FILESDIR}"/pulseaudio-17.0-pr802.patch
+)
+
+src_prepare() {
+       default
+
+       gnome2_environment_reset
+}
+
+src_configure() {
+       local enable_bluez5_gstreamer="disabled"
+       if use aptx || use ldac ; then
+               enable_bluez5_gstreamer="enabled"
+       fi
+
+       local enable_fftw="disabled"
+       if use equalizer || use fftw ; then
+               enable_fftw="enabled"
+       fi
+
+       local emesonargs=(
+               --localstatedir="${EPREFIX}"/var
+
+               -Ddaemon=true
+               -Dclient=false
+               -Ddoxygen=false
+               -Dgcov=false
+               -Dman=true
+               # tests involve random modules, so just do them for the native 
# TODO: tests should run always
+               $(meson_use test tests)
+               -Ddatabase=$(usex gdbm gdbm simple) # tdb is also an option but 
no one cares about it
+               -Dstream-restore-clear-old-devices=true
+               -Drunning-from-build-tree=false
+
+               # Paths
+               
-Dmodlibexecdir="${EPREFIX}/usr/$(get_libdir)/pulseaudio/modules" # Was 
$(get_libdir)/${P}
+               -Dsystemduserunitdir=$(systemd_get_userunitdir)
+               -Dudevrulesdir="${EPREFIX}$(get_udevdir)/rules.d"
+               -Dbashcompletiondir="$(get_bashcompdir)" # Alternatively DEPEND 
on app-shells/bash-completion for pkg-config to provide the value
+
+               # Optional features
+               $(meson_feature alsa)
+               $(meson_feature asyncns)
+               $(meson_feature zeroconf avahi)
+               $(meson_feature bluetooth bluez5)
+               -Dbluez5-gstreamer=${enable_bluez5_gstreamer}
+               $(meson_use bluetooth bluez5-native-headset)
+               $(meson_use ofono-headset bluez5-ofono-headset)
+               -Dconsolekit=disabled
+               $(meson_feature dbus)
+               $(meson_feature elogind)
+               -Dfftw=${enable_fftw}
+               $(meson_feature glib) # WARNING: toggling this likely changes 
ABI
+               $(meson_feature glib gsettings) # Supposedly correct?
+               $(meson_feature gstreamer)
+               -Dgtk=disabled
+               -Dhal-compat=false
+               -Dipv6=true
+               $(meson_feature jack)
+               $(meson_feature lirc)
+               $(meson_feature ssl openssl)
+               $(meson_feature orc)
+               $(meson_feature oss oss-output)
+               -Dsamplerate=disabled # Matches upstream
+               $(meson_feature sox soxr)
+               -Dspeex=enabled
+               $(meson_feature systemd)
+               $(meson_feature tcpd tcpwrap)
+               $(meson_feature udev)
+               $(meson_feature valgrind)
+               $(meson_feature X x11)
+
+               # Echo cancellation
+               -Dadrian-aec=false # Not packaged?
+               $(meson_feature webrtc-aec)
+       )
+
+       meson_src_configure
+}
+
+src_install() {
+       meson_src_install
+
+       # qpaeq moved to media-sound/qpaeq
+       if [[ -f "${ED}"/usr/bin/qpaeq ]]; then
+               rm "${ED}"/usr/bin/qpaeq || die
+       fi
+
+       # Upstream installs 'pactl' if client is built, with all symlinks 
except for
+       # 'pulseaudio', 'pacmd' and 'pasuspender' which are installed if server 
is built.
+       # This trips QA warning, workaround:
+       # - install missing aliases in media-libs/libpulse (client build)
+       # - remove corresponding symlinks in 
media-sound/pulseaudio-daemonclient (server build)
+       rm "${D}/$(get_bashcompdir)"/pulseaudio || die
+       rm "${D}/$(get_bashcompdir)"/pacmd || die
+       rm "${D}/$(get_bashcompdir)"/pasuspender || die
+
+       # Daemon configuration scripts will try to load snippets from 
corresponding '.d' dirs.
+       # Install these dirs to silence a warning if they are missing.
+       keepdir /etc/pulse/default.pa.d
+       keepdir /etc/pulse/system.pa.d
+
+       if use system-wide; then
+               newconfd "${FILESDIR}"/pulseaudio.conf.d pulseaudio
+
+               use_define() {
+                       local define=${2:-$(echo ${1} | tr '[:lower:]' 
'[:upper:]')}
+
+                       use "${1}" && echo "-D${define}" || echo "-U${define}"
+               }
+
+               unifdef -x 1 \
+                       $(use_define zeroconf AVAHI) \
+                       $(use_define alsa) \
+                       $(use_define bluetooth) \
+                       $(use_define udev) \
+                       "${FILESDIR}"/pulseaudio.init.d-5 \
+                       > "${T}"/pulseaudio \
+                       || die
+
+               doinitd "${T}"/pulseaudio
+
+               systemd_dounit "${FILESDIR}"/pulseaudio.service
+
+               # We need /var/run/pulse, bug 442852
+               newtmpfiles "${FILESDIR}"/pulseaudio.tmpfiles pulseaudio.conf
+       else
+               # Prevent warnings when system-wide is not used, bug 447694
+               if use dbus; then
+                       rm 
"${ED}"/usr/share/dbus-1/system.d/pulseaudio-system.conf || die
+               fi
+       fi
+
+       if use zeroconf; then
+               sed -i \
+                       -e '/module-zeroconf-publish/s:^#::' \
+                       "${ED}/etc/pulse/default.pa" \
+                       || die
+       fi
+
+       # Only enable autospawning pulseaudio daemon on systems without systemd
+       if ! use systemd; then
+               insinto /etc/pulse/client.conf.d
+               newins "${FILESDIR}/enable-autospawn.conf" 
"enable-autospawn.conf"
+       fi
+
+       find "${ED}" \( -name '*.a' -o -name '*.la' \) -delete || die
+}
+
+pkg_postinst() {
+       gnome2_schemas_update
+
+       use udev && udev_reload
+
+       if use system-wide; then
+               tmpfiles_process "pulseaudio.conf"
+
+               elog "You have enabled the 'system-wide' USE flag for 
pulseaudio."
+               elog "This mode should only be used on headless servers, 
embedded systems,"
+               elog "or thin clients. It will usually require manual 
configuration, and is"
+               elog "incompatible with many expected pulseaudio features."
+               elog "On normal desktop systems, system-wide mode is STRONGLY 
DISCOURAGED."
+               elog ""
+               elog "For more information, see"
+               elog "    
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/";
+               elog "    
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/SystemWide/";
+               elog "    
https://wiki.gentoo.org/wiki/PulseAudio#Headless_server";
+               elog ""
+       fi
+
+       if use bluetooth; then
+               elog "You have enabled bluetooth USE flag for pulseaudio. 
Daemon will now handle"
+               elog "bluetooth Headset (HSP HS and HSP AG) and Handsfree (HFP 
HF) profiles using"
+               elog "native headset backend by default. This can be 
selectively disabled"
+               elog "via runtime configuration arguments to 
module-bluetooth-discover"
+               elog "in /etc/pulse/default.pa"
+               elog "To disable HFP HF append enable_native_hfp_hf=false"
+               elog "To disable HSP HS append enable_native_hsp_hs=false"
+               elog "To disable HSP AG append headset=auto or headset=ofono"
+               elog "(note this does NOT require enabling USE ofono)"
+               elog ""
+       fi
+
+       if use ofono-headset; then
+               elog "You have enabled both native and ofono headset profiles. 
The runtime decision"
+               elog "which to use is done via the 'headset' argument of 
module-bluetooth-discover."
+               elog ""
+       fi
+
+       if use gstreamer; then
+               elog "GStreamer-based RTP implementation modile enabled."
+               elog "To use OPUS payload install 
media-plugins/gst-plugins-opus"
+               elog "and add enable_opus=1 argument to module-rtp-send"
+               elog ""
+       fi
+
+       if use systemd; then
+               elog "Pulseaudio autospawn by client library is no longer 
enabled when systemd is available."
+               elog "It's recommended to start pulseaudio via its systemd user 
units:"
+               elog ""
+               elog "  systemctl --user enable pulseaudio.service 
pulseaudio.socket"
+               elog ""
+               elog "Root user can change system default configuration for all 
users:"
+               elog ""
+               elog "  systemctl --global enable pulseaudio.service 
pulseaudio.socket"
+               elog ""
+               elog "If you would like to enable autospawn by client library, 
edit autospawn flag in /etc/pulse/client.conf like this:"
+               elog ""
+               elog "  autospawn = yes"
+               elog ""
+               elog "The change from autospawn to user units will take effect 
after restarting."
+               elog ""
+       fi
+
+       optfeature_header "PulseAudio can be enhanced by installing the 
following:"
+       use equalizer && optfeature "qpaeq script for equalizer GUI" 
media-sound/qpaeq
+       use dbus && optfeature "restricted realtime capabilities via D-Bus" 
sys-auth/rtkit
+}
+
+pkg_postrm() {
+       gnome2_schemas_update
+       use udev && udev_reload
+}

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