configure: WARNING: unrecognized options

[Paul Smith]

On Tue, 2013-07-09 at 17:23 +0200, Roberto Nunnari wrote:
> /usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such
> file or directory
>   # include <gnu/stubs-32.h>

I believe you need the 32bit environment to build GCC, since it will by
default be built to compile 32bit apps as well as 64bit apps (I guess:
someone else will need to explain the requirement).

You don't say what version of GNU/Linux you're using, but for
Debian-type systems you can use:

  sudo apt-get -y install gcc-multilib libc6-i386

or something like that.