Re: probing GDB for MI versions

[Andrew Cagney <cagney at gnu dot org>]

> > > Yes, but Andrew just told you that GDB will most probably support at
> > > most 2 MI versions: the latest one and the one before that.  So
> > > printing only the last version is okay, because if that version is not
> > > supported by your front end, you need only to check the previous
> > > version.  Isn't that good enough?
> > >
> > > (Even if GDB does support more than 2 MI versions, you could still
> > > probe smaller versions until you either (1) find one that is okay with
> > > your front end, or (2) get GDB to fail because the MI version you
> > > requested is not supported.

Yes, it's good enough.  Either:

- GDB is started with -i=mi; gdb reports its version (if anything I'd be 
relying on the GDB and not the MI version); your code adjusts
- GDB is started with -i=miX; gdb either barfs or soldiers on; your code 
adjusts

Andrew