Re: Cross compiling 32 bit

[Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>]

"Jason Gauthier" <jgauthier@lastar.com> writes:

>> On 4/8/06, Jason Gauthier <jgauthier@lastar.com> wrote:
>> > Greetings,
>> >
>> >   My first experience with debian, and amd64.  Can someone tell me 
>> > what packages I need to cross compile 32 bit apps?  I've tried for 
>> > awhile, but I just can't figure it out.  I know there are several.
>> AFAIK:
>> lib32gcc1, libc6-dev-i386, lib32stdc++6,lib32z1-dev Is there 
>> anything else?
>> What about applications requiring libsdl? compiling in a chroot?
>> 
>
> Thanks,
>
>  I installed all of those.  (I was missing a couple)
> But I still cannot compile 32bit apps:
>
> jgauthier:/home/jgauthier# gcc -m32 ./test.c
> ./test.c: In function \u2018main\u2019:
> ./test.c:2: warning: return type of \u2018main\u2019 is not
> \u2018int\u2019
> /usr/bin/ld: skipping incompatible
> /usr/lib/gcc/x86_64-linux-gnu/4.0.3/../../../libc.so when searching for
> -lc
> /usr/bin/ld: skipping incompatible
> /usr/lib/gcc/x86_64-linux-gnu/4.0.3/../../../libc.a when searching for
> -lc
> /usr/bin/ld: skipping incompatible /usr/bin/../lib/libc.so when
> searching for -lc
> /usr/bin/ld: skipping incompatible /usr/bin/../lib/libc.a when searching
> for -lc/usr/bin/ld: skipping incompatible /usr/lib/libc.so when
> searching for -lc
> /usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for
> -lc
> /usr/bin/ld: cannot find -lc
> collect2: ld returned 1 exit status
>
> What else do I need to do?  

You need gcc-3.4 in sarge and ia32-libs-dev.

On the other hand, in etch/sid you need libc6-dev-i386 and (if not
present) a link from /usr/lib32 -> /emul/ia32-linux/usr/lib.

MfG
        Goswin