testing/x11vnc: modernize APKBUILD, add check()

testing/x11vnc/APKBUILD

@@ -2,35 +2,28 @@
 # Maintainer: Tuan M. Hoang <tmhoang@flatglobe.org>
 pkgname=x11vnc
 pkgver=0.9.14
-pkgrel=0
+pkgrel=1
 pkgdesc="VNC server for real X displays"
 url="http://www.karlrunge.com/x11vnc/"
 arch="all"
 license="GPL2"
-depends=""
 makedepends="libressl-dev libjpeg-turbo-dev avahi-dev libvncserver-dev
 	automake autoconf"
-install=""
 subpackages="$pkgname-doc"
 source="x11vnc-$pkgver.tar.gz::https://github.com/LibVNC/x11vnc/archive/$pkgver.tar.gz
 	libressl.patch
 	"
+builddir="$srcdir"/x11vnc-$pkgver
 
-_builddir="$srcdir"/x11vnc-$pkgver
 prepare() {
-	local i
-	cd "$_builddir"
-	for i in $source; do
-		case $i in
-		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
-		esac
-	done
+	cd "$builddir"
+	default_prepare || return 1
 	update_config_sub || return 1
+	autoreconf -v --install
 }
 
 build() {
-	cd "$_builddir"
-	autoreconf -v --install
+	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -44,9 +37,14 @@ build() {
 }
 
 package() {
-	cd "$_builddir"
+	cd "$builddir"
 	make -j1 DESTDIR="$pkgdir" install || return 1
 }
 
+check() {
+	cd "$builddir"
+	make check
+}
+
 sha512sums="5d18e5ff493fbc4f6f1efe952812c1acd3087e855a2a9f2c99f3b2606cfa40a20b83e2d0c736e12b453b47f7ff7746069a1b6718d842d1a8f73b00d5c4c4a93f  x11vnc-0.9.14.tar.gz
 5e797f86717f312bb3d227df6b1493723bde4fae8c16591334237701ab0e43a550391aba4b82435d301e95b7cc2050315537549ca717eed3156475c27b8c5ad6  libressl.patch"