how to cross compile kexec for 64b x86_64 on a 32b x86

[Srinivas Dharmasanam]

Tried that; it fails saying:

checking for gcc...
/gcc-3.4.5-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: cannot run
C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.


configure:1803:
/gcc-3.4.5-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gcc
   conftest.c  >&5
configure:1806: $? = 0
configure:1852: result: a.out
configure:1857: checking whether the C compiler works
configure:1863: ./a.out
./configure: ./a.out: No such file or directory
configure:1866: $? = 127
configure:1875: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.

I dont see a conftest.c file anywhere.



On Tue, Jun 24, 2008 at 11:14 AM, Bernhard Walle <bwalle at suse.de> wrote:
> * "Srinivas Murthy" <codevana at gmail.com> [2008-06-24 11:11]:
>>
>> Hi,
>>       I need to cross-compile kexec-tools-1.101 for a x86_64 architecture
>> platform on a 32b x86.
>>
>>       I didn't see any instructions in the configure, etc. scripts for doing this.
>
> gcc does not support that (like the -m32 flag when you build i386 on
> x86-64). You need to build a cross compiler, and then you would pass
> that via
>
>      CC=your-cross-compiler ./configure
>
>
>
> Bernhard
> --
> Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development
>