changes for approval, part three (solaris)

[Benjamin Kosnik]

> > 4) libio/_G_config.h now uses the GNU/Linux libc version.
> [...]
> > What is the purpose / intent of the current use of _G_config.h?  At least
> > part of Phil's patch is working around a definition in _G_config.h which
> > is not appropriate for Solaris.  Not surprisingly, AIX has problems with
> > the assumptions in _G_config.h as well.
> 
> True, a lot of workarounds in a lot of places could go away if _G_config.h
> were generated from, say, _G_config.h.in and included a bunch of autoconf
> HAVE_ tests.  I would be more than willing to do the work.

David's right. _G_config.h was being generated in v2 by a script. The
thought was to auto-gen _G_config.h via autoconf/automake on a
platform-specific way. 

Don't worry about divergence at the moment. We periodically synch with
glibc.


Could you work this approach up please?

-benjamin