Re: cross compiling a library with ELDK

Wolfgang,

Thanks for your response...

I confess I did not read the whole documentation from scratch, but I
have browsed many sections especially related with my issue. I should
say it is always said in documentation that setting $CROSS_COMPILE
environment variable is necessary, but that did not work for me.

Specifically, I am trying to cross compile osip library with EDLK (not
an ELDK component). When I execute the configure script I want the
config.h to be generated to reflect the target system. As from your
last response I understand that I always need to make sure by checking
config.h file myself.

After I have posted this problem I found the below thread:

http://ozlabs.org/pipermail/linuxppc-embedded/2003-July/011785.html

Following the same, I have achieved generation of config.h by checking
ELDK components and GNU cross tools to be prefixed with ppc_8xx.

Although I was not able to build shared libraries with the generated
makefile, building static libraries was OK. But it seems as if it is
somehow difficult to cross build a SW component that is not a part of
ELDK, and this is harder than "Rebuilding ELDK Components" which is
specified to be so straightforward in the documentation.

Thanks and regards...

On 9/19/07, Wolfgang Denk [off-list ref] wrote:

In message [ref] you wrote:

quoted

I want to cross compile a free software library with ELDK 3.1.1 for
powerpc. I have ELDK installed under directory /opt and my system and
PATH is set properly. I have a few points to be clarified:

May I recommend that, as a first step, you read the documentation?

quoted

- For a cross compilation with ELDK how can we be sure that config.h
file for a software packet is generated properly? I mean, how can we

You cannot be sure. You will always have to check.

quoted

be sure that ELDK components is checked instead of our host linux
system for generating a config.h file by the configure script?

RTFM. See especially the two bullets at
http://www.denx.de/wiki/view/DULG/ELDKRebuildingComponents#Section_3.7.2.

Best regards,

Wolfgang Denk

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