[PATCH] Don't try building gdb against guile-2.2

[Doug Evans via gdb-patches]

Eli Zaretskii writes:
 > > Date: Sun, 08 Oct 2017 13:20:28 -0400
 > > From: Simon Marchi <simon.marchi@polymtl.ca>
 > > Cc: gdb-patches@sourceware.org
 > > 
 > > > Should we perhaps have a configure-time option, by default off, to use
 > > > Guile 2.2?  Otherwise, how would that "somebody" work on fixing this
 > > > problem, if they cannot even try building with Guile 2.2?
 > > > 
 > > > Thanks.
 > > 
 > > They can pass --with-guile=guile-2.2.  try_guile_versions, AFAIU, 
 > > contains the version to try by default if the version to use is not 
 > > explicitly passed (--with-guile or --with-guile=yes).
 > 
 > Ah, okay.  That's good enough, I think.

SGTM