[U-Boot-Users] [PATCH] Fix host tool build breakage, take two

[Bartlomiej Sieka <tur@semihalf.com>]

Kumar Gala wrote:
> On Tue, 1 Apr 2008, Wolfgang Denk wrote:
[...]
>>> Any ideas on how to work around this?  Do we really intend to pick up
>>> the system md5.h or should we be getting the one from u-boot/include/
>>> md5.h?
>> We need the system md5.h, I think. We'll investigate.
> 
> If I force things to use the md5.h in u-boot/include things seem to build.
> Here's the patch for the forcing:

I think that generally it is a better idea to use U-Boot's includes when
building for the host system, as this gives us better control over what
exactly gets included. But then on the other hand, tools/Makefils has this:

CPPFLAGS   = -idirafter $(SRCTREE)/include \
		-idirafter $(OBJTREE)/include2 \
		-idirafter $(OBJTREE)/include \

Could anyone comment on the reasons why we try U-Boot's includes after
system includes? Perhaps it would be a good idea to reverse the order --
see below for a quick RFC patch (compile-tested on two arm and two ppc
boards, each arch with and without CONFIG_FIT enabled).

Kumar - could you try the patch out and see if it helps your build issue?

Regards,
Bartlomiej

diff --git a/tools/Makefile b/tools/Makefile
index 8784a6d..93f74aa 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -117,7 +117,7 @@ BINS        := $(addprefix $(obj),$(BIN_FILES))
  #
  # Use native tools and options
  #
-CPPFLAGS   = -idirafter $(SRCTREE)/include \
+CPPFLAGS   = -I $(SRCTREE)/include \
		-idirafter $(OBJTREE)/include2 \
		-idirafter $(OBJTREE)/include \
		-DTEXT_BASE=$(TEXT_BASE) -DUSE_HOSTCC