What environment do we define?

[Mark Kettenis]

Hi,

The file `sysdeps/wordsize-32/bits/environments.h' contains the
following comment:

/* We optionally provide an environment with the above size but an 64-bit
   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */

We only provide this 64-bit `off_t' environment on Linux.  Not for the
Hurd.  Shouldn't `_XBS5_ILP32_OFFBIG' be defined to `-1' in the
generic `sysdeps/wordsize-32/bits/environments.h' file, and provide
suitable <bits/environments> headers in the subdirectories of
`sysdeps/unix/sysv/linux'?

I volunteer to write/provide the necessary patches.

Mark