[U-Boot] [RFC PATCH v2 13/20] sandbox: Add OS dependent layer

[Mike Frysinger]

On Monday, September 26, 2011 17:04:49 Simon Glass wrote:
> On Sun, Sep 25, 2011 at 10:16 PM, Mike Frysinger wrote:
> > On Friday, September 23, 2011 12:22:15 Simon Glass wrote:
> >> --- a/arch/sandbox/cpu/sandbox/Makefile
> >> +++ b/arch/sandbox/cpu/sandbox/Makefile
> >> 
> >> +# I want to do this, but it doesn't seem to work
> >> +CFLAGS_arch/sandbox/cpu/sandbox/os.o += -I/usr/include
> > 
> > seems to work for me ...
> > CFLAGS_arch/blackfin/lib/board.o = -ffoo
> 
> That is not a -I flag, though. If you try -I I think you will get a
> failure. Looking a bit closer it is because the dependency stuff uses
> CPPFLAGS which doesn't support per file/dir flags.

OK, if it's the dependency step, that's a different story.  untested patch:

--- a/config.mk
+++ b/config.mk
@@ -277,6 +277,8 @@
 BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
 ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
 ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
+EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
+ALL_CFLAGS += $(EXTRA_CPPFLAGS)
 $(obj)%.s:	%.S
 	$(CPP) $(ALL_AFLAGS) -o $@ $<
 $(obj)%.o:	%.S
--- a/rules.mk
+++ b/rules.mk
@@ -30,7 +30,7 @@
 		@touch $@
 		@for f in $(SRCS); do \
 			g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
-			$(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
+			$(CC) -M $(CPPFLAGS) $(EXTRA_CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
 		done
 		@for f in $(HOSTSRCS); do \
 			g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \

-mike