xconfig: add quiet rule for moc

Also add a dependency on .tmp_qtcheck for KC_QT_MOC.

Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 5e2176c..cf1171f 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -298,8 +298,11 @@
 
 $(obj)/qconf.o: $(obj)/qconf.moc
 
-$(obj)/%.moc: $(src)/%.h
-	$(KC_QT_MOC) -i $< -o $@
+quiet_cmd_moc = MOC     $@
+      cmd_moc = $(KC_QT_MOC) -i $< -o $@
+
+$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
+	$(call cmd,moc)
 
 # Extract gconf menu items for I18N support
 $(obj)/gconf.glade.h: $(obj)/gconf.glade