rules.mk: make sure we always create a .depend file

There are some cases where "make depend" would always run when entering a directory. This happened when both the $(SRCS) and $(HOSTSRCS) lists were empty (which is for example typical for the examples/api/ directory). Avoid this by making sure that a ".depend" file gets always created, even if empty. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>

rules.mk: make sure we always create a .depend file
There are some cases where "make depend" would always run when entering a directory. This happened when both the $(SRCS) and $(HOSTSRCS) lists were empty (which is for example typical for the examples/api/ directory). Avoid this by making sure that a ".depend" file gets always created, even if empty. Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
Wolfgang Denk
1 parent d628866474
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
rules.mk
@@ -27,6 +27,7 @@
  
 $(obj).depend:	$(src)Makefile $(TOPDIR)/config.mk $(SRCS) $(HOSTSRCS)
 		@rm -f $@
+		@touch $@
 		@for f in $(SRCS); do \
 			g=`basename $$f | sed -e 's/\(.*\)\.\w/\1.o/'`; \
 			$(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
...	...	@@ -27,6 +27,7 @@
27	27
28	28	$(obj).depend: $(src)Makefile $(TOPDIR)/config.mk $(SRCS) $(HOSTSRCS)
29	29	@rm -f $@
	30	+ @touch $@
30	31	@for f in $(SRCS); do \
31	32	g=`basename $$f \| sed -e 's/\(.*\)\.\w/\1.o/'`; \
32	33	$(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \