[U-Boot] FDT include file problems

[Jerry Van Baren]

Wolfgang Denk wrote:
> Dear Jerry Van Baren,
> 
> In message <20081020031023.GA18173 at cideas.com> you wrote:
>>> ...
>>> In file included from /home/wd/git/u-boot/include/libfdt_env.h:33,
>>>                  from fdt.c:51:
>>> /usr/include/asm/byteorder.h:6:2: warning: #warning using private kernel header; include <endian.h> instead!
> ...
> 
>> Does this work better?
> 
> Not really:

[snip]

>> diff --git a/include/libfdt_env.h b/include/libfdt_env.h
>> index 671c3a8..728a248 100644
>> --- a/include/libfdt_env.h
>> +++ b/include/libfdt_env.h
>> @@ -33,10 +33,17 @@
>>  #include <asm/byteorder.h>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> This has not changed?

Oops, I was rushing too much.  I missed changing this to endian.h.

[snip]

> If I change the code to include <asm/byteorder.h> only for the U-Boot
> code but use <endian.h>, I get warnings:
> 
> ../include/libfdt.h:162: warning: implicit declaration of function '__swab32'
> 
> and finally a "undefined reference to `__swab32'" error. Seems
> __swab32 and __swab64 are defined only in linux/byteorder/swab.h
> 
> Best regards,
> 
> Wolfgang Denk

...and if I were not rushing so much, I would have found that myself 
instead of looking stupid.  :-(

Google hasn't been very helpful for answering the question of how to 
handle endian issues in userland (non-kernel) code.  Hmmm.  Grrr.  Maybe 
I'm not asking it the right question.

Maybe we need to make our own copy of linux/byteorder/swab.h in u-boot? 
  That doesn't seem right.

Best regards,
gvb