ensure that dependencies are rebuilt after 'make update' so that builds don't break when files are removed/renamed

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@9691 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/Makefile

@@ -63,8 +63,11 @@ endif
 
 all: $(MODS)
 
-clean:
-	rm -f *.so *.o look .depend
+clean-depend:
+	rm -f .depend
+
+clean: clean-depend
+	rm -f *.so *.o look
 
 %.so : %.o
 	$(CC) $(SOLINK) -o $@ ${CYGSOLINK} $< ${CYGSOLIB}