libvirt: disable remember_owner by default on musl systems

fixes void-linux#14721

srcpkgs/libvirt/template

@@ -1,7 +1,7 @@
 # Template file for 'libvirt'
 pkgname=libvirt
 version=5.8.0
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--without-hal --with-storage-lvm --with-qemu
  --with-qemu-user=libvirt --with-qemu-group=libvirt --without-netcf
@@ -56,6 +56,7 @@ make_dirs="
 pre_configure() {
 	autoreconf -fi
 }
+
 post_install() {
 	# runit services
 	vsv libvirtd
@@ -65,6 +66,12 @@ post_install() {
 	rm -rf ${DESTDIR}/etc/sysconfig
 	# Remove unused stuff.
 	rm -rf ${DESTDIR}/var/log
+
+	# workaround for musl not providing an utmpx implementation
+	if [ "$XBPS_TARGET_LIBC" = "musl" ];
+	then
+		echo "remember_owner = 0" >> ${DESTDIR}/etc/libvirt/qemu.conf
+	fi
 }
 
 libvirt-devel_package() {