community/mpv: compile with rsound support

This adds RSound support to mpv using librsound. This allows you to
use the audio output from another computer on your network. This feature
is similar to PluseAudios TCP module.

Sending this to patchwork instead of committing it myself because it is
rather uncommon to compile mpv with rsound support by default, however,
it doesn't hurt and I find this feature very useful.

community/mpv/APKBUILD

@@ -4,17 +4,17 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=mpv
 pkgver=0.13.0
-pkgrel=1
+pkgrel=2
 pkgdesc="Video player based on MPlayer/mplayer2"
 url="http://mpv.io/"
 arch="all"
 license="GPL"
-depends=
+depends=""
 makedepends="libxxf86dga-dev libxv-dev libmad-dev lame-dev libao-dev
 	libtheora-dev xvidcore-dev zlib-dev sdl-dev freetype-dev
 	x264-dev faac-dev ttf-dejavu libxvmc-dev alsa-lib-dev libva-dev
 	mesa-dev ffmpeg-dev libass-dev perl lua5.2-dev libvdpau-dev python
-	libxext-dev libxscrnsaver-dev py-docutils"
+	libxext-dev libxscrnsaver-dev py-docutils rsound-dev"
 install=""
 subpackages="
 	$pkgname-doc
@@ -44,6 +44,7 @@ build() {
 		--enable-libass \
 		--enable-zsh-comp \
 		--enable-xss \
+		--enable-rsound \
 		|| return 1
 	./waf build || return 1
 }