community/ffmpeg: build with libass support

community/ffmpeg/APKBUILD

@@ -4,7 +4,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=ffmpeg
 pkgver=3.4.2
-pkgrel=0
+pkgrel=1
 pkgdesc="Complete and free Internet live audio and video broadcasting solution for Linux/Unix"
 url="http://ffmpeg.org/"
 arch="all"
@@ -14,7 +14,7 @@ subpackages="$pkgname-dev $pkgname-doc $pkgname-libs"
 makedepends="gnutls-dev lame-dev libvorbis-dev xvidcore-dev zlib-dev libvdpau-dev
 	imlib2-dev x264-dev libtheora-dev coreutils bzip2-dev perl-dev libvpx-dev
 	libvpx-dev sdl2-dev libxfixes-dev libva-dev alsa-lib-dev rtmpdump-dev
-	v4l-utils-dev yasm opus-dev x265-dev"
+	v4l-utils-dev yasm opus-dev x265-dev libass-dev"
 checkdepends="rsync"
 source="http://ffmpeg.org/releases/ffmpeg-$pkgver.tar.xz
 	0001-libavutil-clean-up-unused-FF_SYMVER-macro.patch
@@ -52,6 +52,7 @@ build() {
 		--enable-avfilter \
 		--enable-gnutls \
 		--enable-gpl \
+		--enable-libass \
 		--enable-libmp3lame \
 		--enable-librtmp \
 		--enable-libvorbis \