target-dependent .gdbinit

[Andrew Cagney]

> Andrew Cagney <ac131313@redhat.com>:
> 
>> how about something like:
>> 	(gdb) eval source ~/.gdbinit-$target
> 
> 
> well, there's still the standardization point.  if gdb did
> this automatically, then people could rely on that behavior
> in arbitrary installations.  otherwise, people will
> synthesize this behavior themselves in different ways.  one
> installation might have .gdb.$target, another
> .gdbinit.$target, or .vxgdbinit, etc.

It should be kept simple.  A GDB install should only read `.gdbinit' 
(the vx hacks, I think, should just go).  A user is then free to 
customize their .gdbinit to do things like read .gdbinit-$target, or 
even conditionally interpret sections of the init file.

If GDB's scripting language isn't powerful enough to handle this then 
the scripting language needs to be fixed.

Andrew