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From: "marco.morandini at polimi dot it" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/57226] The installation of pretty printers is not documented
Date: Thu, 09 May 2013 13:32:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57226

--- Comment #2 from marco.morandini at polimi dot it ---
On 05/09/2013 02:48 PM, redi at gcc dot gnu.org wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57226
>
> --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
> You install GCC and the printers get installed alongside them, and when gdb
> loads libstdc++.so.6.0.16 it automatically loads libstdc++.so.6.0.16-gdb.py ...
> what more do you need to know? What needs to be documented?
>

First, mentioning that the pretty printers existst, and are installed 
with gcc, and not with gdb.

Second, what to do if someone installs gcc in a non-standard location 
that is not known by gdb.
I agree that by reading the gdb info one can come up with these commands 
in his .gdbinit,

add-auto-load-safe-path /home/marco/local/gcc-4.8.0/share/gcc-4.8.0/python

python
import sys
sys.path.insert(0, '/home/marco/local/gcc-4.8.0/share/gcc-4.8.0/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end

but reporting them in gcc's manual would help.