[PATCH] Fix python compatibility with old versions of GDB

[Simon Marchi]

On 2017-06-13 16:44, Eli Zaretskii wrote:
> FWIW, I always configure GDB to use a version-specific data-directory,
> because I leave old GDB versions (renamed) on my system, so I could
> still use them after installing a new version.  E.g., if the new
> version turns out to have a bug.  I would actually be happier if we
> changed our installation scripts to do that by default, because the
> scripts are almost never backward-compatible IME.

Can you give more details on what you think could/should be done by 
default?

For such a use case, I would compile each gdb with a separate prefix 
(e.g. --prefix=/opt/gdb/<version>), which would give each install its 
own data directory.  So from my point of view, the "feature" is pretty 
well-covered.