diff -up redhat-rpm-config-9.0.3/macros.fu redhat-rpm-config-9.0.3/macros
--- redhat-rpm-config-9.0.3/macros.fu	2009-07-22 16:23:55.000000000 -0400
+++ redhat-rpm-config-9.0.3/macros	2009-07-22 16:24:24.000000000 -0400
@@ -173,6 +173,9 @@ unset DISPLAY\
 %_source_filedigest_algorithm 8
 %_binary_filedigest_algorithm 8
 
+# Use XZ compression for binary payloads
+%_binary_payload w2.xzdio
+
 %__find_provides        /usr/lib/rpm/redhat/find-provides
 %__find_requires        /usr/lib/rpm/redhat/find-requires