Index: buildsys.mk.in
==================================================================
--- buildsys.mk.in
+++ buildsys.mk.in
@@ -127,17 +127,17 @@
 			test -f .deps && rm .deps; \
 			cat $$deps >.deps; \
 			rm -f $$deps; \
 			${DEPEND_OK}; \
 		else \
-			:> $$deps; \
+			:> .deps; \
 			${DEPEND_FAILED}; \
 		fi; \
 	fi
 
 .c.dep .cc.dep .cxx.dep .m.dep:
-	${CPP} ${CPPFLAGS} -M $< >$@
+	${CPP} ${CPPFLAGS} -M $< >$@ || rm -f $@
 
 .d.dep:
 .xpm.dep:
 
 pre-depend: