distcheck fixes

Make it so that make distcheck suceeds.

Makefile.am

@@ -1,6 +1,7 @@
 SUBDIRS = po
 
 BUILT_SOURCES =
+CLEANFILES =
 EXTRA_DIST =
 
 include src/Makefile.am.inc

data/Makefile.am.inc

@@ -1,16 +1,19 @@
 portaldir = $(datadir)/xdg-desktop-portal/portals
-portal_DATA = data/gtk.portal
+dist_portal_DATA = data/gtk.portal
 
-%.service: %.service.in config.log
+%.service: data/%.service.in config.log
 	$(AM_V_GEN) $(SED) -e "s|\@libexecdir\@|$(libexecdir)|" $< > $@
 
-servicedir = $(DBUS_SERVICE_DIR)
-service_in_files = data/org.freedesktop.impl.portal.desktop.gtk.service.in
-service_DATA = data/org.freedesktop.impl.portal.desktop.gtk.service
+dbus_servicedir = $(DBUS_SERVICE_DIR)
+dbus_service_in_files = data/org.freedesktop.impl.portal.desktop.gtk.service.in
+dbus_service_DATA = org.freedesktop.impl.portal.desktop.gtk.service
+
+CLEANFILES += $(dbus_service_DATA)
 
 EXTRA_DIST += \
-        data/org.gtk.Notification.xml           \
+	$(dbus_service_in_files)                \
+        data/org.gtk.Notifications.xml          \
         data/org.gnome.SessionManager.xml       \
-        data/org.freedesktop.Screensaver.xml    \
+        data/org.freedesktop.ScreenSaver.xml    \
         data/org.gnome.Shell.Screenshot.xml     \
         $(NULL)

src/Makefile.am.inc

@@ -40,6 +40,9 @@ src/resources.c: src/xdg-desktop-portal-gtk.gresource.xml
 
 EXTRA_DIST += \
 	src/xdg-desktop-portal-gtk.gresource.xml	\
+        src/appchooserdialog.ui                         \
+        src/appchooserrow.ui                            \
+        src/screenshotdialog.ui                         \
 	$(NULL)
 
 libexec_PROGRAMS = \