Change to source/Makefile

[Derrell.Lipman at UnwiredUniverse.com]

The following patch causes the proto headers to be deleted when doing
a "make clean".  After doing "cvs update", the best way to ensure that
everything is still working correctly is to do a complete rebuild:
"make clean" followed by "make".  I was previously having to also do a
"make proto" each time.

--- Makefile~	Wed Nov  7 09:21:05 2001
+++ Makefile	Wed Nov  7 09:23:23 2001
@@ -711,7 +711,7 @@
 uninstallscripts:
 	@$(SHELL) $(srcdir)/script/uninstallscripts.sh $(INSTALLPERMS) $(BINDIR) $(SCRIPTS)
 
-clean:	
+clean:	delheaders
 	-rm -f core */*~ *~ */*.o */*.po */*.po32 */*.so $(PROGS) $(SPROGS) 
 
 winbindd_proto: