[PATCH] Specify python2 or python3 as Python program name

[Eli Zaretskii]

> From: Jim Chen <nchen@mozilla.com>
> Cc: Jim Chen <nchen@mozilla.com>
> Date: Wed, 11 May 2016 17:51:46 -0400
> 
> When initializing Python, GDB hard codes the Python program name to
> $prefix/bin/python, where $prefix is /usr for example. On some
> platforms, /usr/bin/python points to python3. So what happens is, even
> if GDB is built with python2 support, GDB ends up setting the Python
> program name to point to python3, causing a mismatch. I think it's
> better to deliberately specify python2 or python3.

I have Python 2.x installed, but there's no "python2" executable
anywhere in sight, only a "python" executable.  Does this patch mean
GDB will no longer be able to invoke Python on my system?

Thanks.