[RFA/python:1/2] Add support for --with-pythondir.

[Joel Brobecker]

> I don't have any concerns other than those expressed.
> They're not showstoppers or anything, I just want to make sure that
> if/when the time comes to add --with-python-sodir (or some such), it's
> not willy-nilly shot down because of the claim that there are already
> too many configure options.

Aaaah - I see where you are coming from now.  Personally, I certainly
would not object. The number of configure options can indeed be somewhat
of a concern (I'm slightly concerned about the distinction between
the gdb-pythonlib path, and the python path), but nothing blocking.
At worst, I think we can do without the configure option, by forcing
the lib-dynload directory to be inside the gdb-pythonlib.  WDYT?

I need to discuss the second patch with Tom anyways, so I'll wait a few
more days, to see if anyone else would like to comment on this.

-- 
Joel