- got rid of ../../Makefile.rules:80: xxxx.d: No such file or directory

(still experimental since it might hide some legitimate not able to
 build xxxx.d errors)

Makefile.rules

@@ -77,9 +77,9 @@ TAGS:
 	$(MKTAGS) 
 	
 ifeq (,$(MAKECMDGOALS))
-include $(depends)
+-include $(depends)
 endif
 ifneq (,$(filter-out clean proper distclean realclean mantainer-clean TAGS \
 		tar modules, $(MAKECMDGOALS)))
-include $(depends)
+-include $(depends)
 endif