[patch][rfc] Allow GDB to search for the right libthread_db.so.1

[Eli Zaretskii]

> Cc: Thiago Jung Bauermann <bauerman@br.ibm.com>,         gdb-patches ml <gdb-patches@sourceware.org>
> From: Tom Tromey <tromey@redhat.com>
> Date: Thu, 16 Apr 2009 11:53:58 -0600
> 
> Paul> I think "Debugging Programs with Multiple Threads" section is the most
> Paul> appropriate place, but I am not sure.
> 
> It seems reasonable to me, but perhaps Eli could provide his opinion.

Yes, that's reasonable: we generally document such variables together
with the features to which they are tied, cf. "set solib-search-path",
for example.