--- linux-2.6.34/scripts/Makefile.lib
+++ linux-2.6.34/scripts/Makefile.lib
@@ -204,7 +204,8 @@
 # ---------------------------------------------------------------------------
 
 quiet_cmd_gzip = GZIP    $@
-cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
+cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -f -9 > $@) && \
+	( which advdef > /dev/null && advdef -z $@ ; true ) || \
 	(rm -f $@ ; false)