--- /dev/null
+#!/bin/bash
+
+# compare the generated config.h from a waf build with existing samba
+# build
+
+grep ^.define bin/default/source3/include/config.h | sort > waf-config.h
+grep ^.define $HOME/samba_old/source3/include/config.h | sort > old-config.h
+
+comm -23 old-config.h waf-config.h
+
+#echo
+#diff -u old-config.h waf-config.h