accountsservice: unbreak musl build.

srcpkgs/accountsservice/template

@@ -1,7 +1,7 @@
 # Template file for 'accountsservice'
 pkgname=accountsservice
 version=0.6.40
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--disable-static $(vopt_enable systemd) $(vopt_enable gir introspection)
  ac_cv_file__etc_redhat_release=no ac_cv_file__etc_debian_version=no"
@@ -24,6 +24,12 @@ if [ -z "$CROSS_BUILD" ]; then
 	build_options_default="gir"
 fi
 
++pre_configure() {
+	case "$XBPS_TARGET_MACHINE" in
+		*-musl) configure_args+=" ac_cv_header_utmpx_h=no";;
+	esac
+}
+
 accountsservice-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"
 	short_desc+=" - development files"