[libstdc++] Add brief documentation narrative for GDB pretty-printers. Add links to GDB wiki/manual

[Phil Muldoon]

On 10/05/2009 07:26 PM, Tom Tromey wrote:
>>>>>> "Phil" == Phil Muldoon<pmuldoon@redhat.com>  writes:
>>>>>>              
> Phil>  +  GDB 7.0 will include support for writing pretty-printers in Python.
> Phil>  +  A library of printers for STL classes already exists within the
> Phil>  +  libstdc++ svn repository.  For information on enabling these printers,
> Phil>  +  and for other GDB STL support options: please see
> Phil>  +<ulink url="http://sourceware.org/gdb/wiki/STLSupport">  "GDB Support
> Phil>  +  for STL"</ulink>  in the GDB wiki.
>
> I think it would be preferable to put the actual instructions into the
> libstdc++ documentation.
>    


I'm not adverse to this, but some of the other debug.xml text refers to 
links in other GDB documentation, so I thought that was preferable. I 
placed it in the wiki as that would be "one" place to maintain, add or 
delete stuff over the alternative of several different disparate sources.

Cheers,

Phil