rocksndiamonds: enable gles for armv[5-6]*

srcpkgs/rocksndiamonds/template

@@ -12,6 +12,27 @@ homepage="http://www.artsoft.org/rocksndiamonds"
 distfiles="http://www.artsoft.org/RELEASES/unix/${pkgname}/${pkgname}-${version}.tar.gz"
 checksum=c91a0151ff415b87561409bffca3682020a1aaccfd7c44b8f20120179b9821ea
 
+# Package build options
+build_options="gles"
+
+case "$XBPS_TARGET_MACHINE" in
+	arm*)
+		# Enable OpenGL/ES on rpi platforms
+		build_options_default="gles"
+		;;
+esac
+
+
+if [ "$build_option_gles" ]; then
+	case "$XBPS_TARGET_MACHINE" in
+	armv[67]*)
+		# RaspberryPi, use Videocore IV
+		makedepends+=" rpi-userland-devel"
+		LDFLAGS="-L${XBPS_CROSS_BASE}/opt/vc/lib -lbcm_host"
+		;;
+	esac
+fi
+
 do_build() {
 	CFLAGS+=" -DTARGET_SDL2"
 	CFLAGS+=" -DRO_GAME_DIR='\"/usr/share/${pkgname}\"'"