Re: [gentoo-embedded] Building Crosscompiler for Embedded System

["Kevin F. Quinn (Gentoo)" <kevquinn@gentoo.org>]

[-- Attachment #1: Type: text/plain, Size: 1121 bytes --]

On Mon, 06 Mar 2006 10:35:10 +0100
Lutz Schönemann <lutz.schoenemann@sit.fraunhofer.de> wrote:

> Hi,
> I've problems building an working Cross-Compiler to use it for an
> i386 embedded system. Until now I've tried the following two things:
> 
> - Using crossdev:
> The crossdev script worked fine and installed the whole toolchain 
> (stage4: binutils, gcc, linux-headers, etc.). The trouble is that
> when I want to merge a packege with this compiler (e.g.:
> CFLAGS="-arch=i386" ROOT=/tmp/cross/ CHOST=i386-unknown-linux-gnu
> emerge sys-boot/syslinux) it ends up with the message that the
> compiler is unable to build executables.

Just in case that wasn't a typo in transcription - you need
CFLAGS="-march=i386" (with an 'm').  You should look at the config.log
etc to find out exactly why the compiler couldn't build executables.

BTW again just in case - if your host is an x86 system, you don't need a
cross-compiler as your host compiler can build for all x86 variants -
it's enough to get the CFLAGS right; e.g.

CFLAGS="-march=i386" ROOT=/tmp/cross emerge <pkg>

-- 
Kevin F. Quinn

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 191 bytes --]