gpm: added systemd build option (off).

srcpkgs/gpm/template

@@ -1,12 +1,12 @@
 # Template file for 'gpm'
 pkgname=gpm
 version=1.20.7
-revision=3
+revision=4
+build_options="systemd"
 build_style=gnu-configure
 hostmakedepends="automake libtool flex"
 makedepends="ncurses-devel libfl-devel"
 configure_args="--sbindir=/usr/bin"
-systemd_services="gpm.service on"
 short_desc="A mouse server for the console and xterm"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://www.nico.schottelius.org/software/gpm/"
@@ -17,7 +17,6 @@ checksum=a955053b36556ffa7c628ce18fd6de7d625966573fa412fb08869533d8f7385c
 pre_configure() {
 	./autogen.sh
 }
-
 post_install() {
 	cd ${DESTDIR}/usr/lib
 	ln -s libgpm.so.2.* libgpm.so
@@ -25,10 +24,11 @@ post_install() {
 	touch ${DESTDIR}/usr/share/info/dir
 
 	vinstall ${FILESDIR}/gpm.sh 755 etc/profile.d
-	vinstall ${FILESDIR}/gpm.service 644 usr/lib/systemd/system
+	if [ "$build_option_systemd" ]; then
+		vinstall ${FILESDIR}/gpm.service 644 usr/lib/systemd/system
+	fi
 	vsv gpm
 }
-
 gpm-devel_package() {
 	depends="libgpm-${version}_${revision}"
 	short_desc+=" - development files"
@@ -38,7 +38,6 @@ gpm-devel_package() {
 		vmove "usr/lib/*.so"
 	}
 }
-
 libgpm_package() {
 	short_desc+=" - runtime library"
 	pkg_install() {