diff -urNad xzgv.orig/xzgv-0.9.1/debian/rules xzgv/xzgv-0.9.1/debian/rules
--- xzgv.orig/xzgv-0.9.1/debian/rules	2015-02-07 09:38:33.010110656 +0000
+++ xzgv/xzgv-0.9.1/debian/rules	2015-02-07 09:44:45.282678361 +0000
@@ -36,7 +36,7 @@
 	dh_testdir
 
 	# Add here commands to compile the package.
-	$(MAKE) CFLAGS="$(CPPFLAGS) $(CFLAGS)" LDFLAGS="$(LDFLAGS)" all info
+	$(MAKE) CFLAGS="$(CPPFLAGS) $(CFLAGS)" LDFLAGS="$(LDFLAGS)" GZIP=-9n all info
 
 	touch $@