--- gdm-2.20.11/config/Xsession.in~	2013-03-06 00:17:36.000000000 +0200
+++ gdm-2.20.11/config/Xsession.in	2013-03-06 00:18:31.189137195 +0200
@@ -183,7 +183,7 @@
 
 # run all system xinitrc shell scripts.
 if [ -d /etc/X11/xinit/xinitrc.d ]; then
-    for i in /etc/X11/xinit/xinitrc.d/* ; do
+    for i in /etc/X11/xinit/xinitrc.d/*.sh; do
         if [ -x "$i" ]; then
 	    . "$i"
         fi