--- libxfce4ui-4.10.0/xfce4-about/Makefile.in.orig	2012-04-28 21:46:56.000000000 +0200
+++ libxfce4ui-4.10.0/xfce4-about/Makefile.in	2012-05-31 16:35:53.000000000 +0200
@@ -356,8 +356,7 @@
 	-DPACKAGE_LOCALE_DIR=\"$(localedir)\" \
 	$(PLATFORM_CPPFLAGS)
 
-xfce4_about_built_sources = \
-	about-dialog-ui.h
+xfce4_about_built_sources =
 
 xfce4_about_SOURCES = \
 	$(xfce4_about_built_sources) \