spotifyd: add portaudio build option.

This option is on by default.

srcpkgs/spotifyd/template

@@ -1,28 +1,31 @@
 # Template file for 'spotifyd'
 pkgname=spotifyd
 version=0.2.24
-revision=3
+revision=4
 build_style=cargo
 configure_args="--no-default-features"
 hostmakedepends="pkg-config"
 makedepends="libressl-devel $(vopt_if alsa alsa-lib-devel)
-$(vopt_if pulseaudio pulseaudio-devel) $(vopt_if dbus dbus-devel)"
+ $(vopt_if pulseaudio pulseaudio-devel) $(vopt_if portaudio portaudio-devel)
+ $(vopt_if dbus dbus-devel)"
 short_desc="Spotify client running as a UNIX daemon"
 maintainer="Andrew Benson <[email protected]>"
 license="GPL-3.0-or-later"
 homepage="https://github.com/Spotifyd/spotifyd"
 distfiles="${homepage}/archive/v${version}.tar.gz"
 checksum=d3763f4647217a8f98ee938b50e141d67a5f3d33e9378894fde2a92c9845ef80
 
-build_options="alsa pulseaudio dbus"
-build_options_default="alsa pulseaudio dbus"
+build_options="alsa pulseaudio portaudio dbus"
+desc_option_portaudio="Enable PortAudio backend"
+build_options_default="alsa pulseaudio portaudio dbus"
 
 export CFLAGS_${RUST_BUILD//-/_}="${CFLAGS_host}"
 export CC_${RUST_BUILD//-/_}="${BUILD_CC}"
 
 _features="$(vopt_if alsa ',alsa_backend')"
 _features+="$(vopt_if pulseaudio ',pulseaudio_backend')"
 _features+="$(vopt_if dbus ',dbus_mpris,dbus_keyring')"
+_features+="$(vopt_if portaudio ',portaudio_backend')"
 
 if [ "$_features" ]; then
 	configure_args+=" --features $_features"