Re: Meaning of sys_nerr (and porting programs)

[Roland McGrath]

I would have thought sys_nerr should not be defined at all, just as
sys_errlist is not.  The two go together.  In fact, before your report I
thought it was not defined.  In the libc change logs (libc/ChangeLog.8) I
see:

1998-06-01  Gordon Matzigkeit  <gord@profitpress.com>

        * sysdeps/mach/hurd/errlist.c (sys_nerr, _sys_nerr): Make weak
        aliases for _hurd_nerr, for programs that don't use sys_errlist,
        but need sys_err.

We haven't heard from Gord in a long time, so we'll have to guess or
research what motivated this.  It doesn't really make sense to me.