I've wanted what Cagney proposed here before:

 http://sourceware.org/ml/gdb/2002-08/msg00166.html
 http://sourceware.org/bugzilla/show_bug.cgi?id=7580

In a nutshell, these new commands:

 maint set internal-error quit [on|off|auto]
 maint set internal-error corefile [on|off|auto]

The reaction seemed to be good at the time.

I've wanted it for slightly different reasons for this, though.  I find that
running the testsuite and collecting a bunch of core dumps of GDB (using sysctl
kernel.core_pattern), instead of looking at internal_errors in log files
helps find issues faster when I'm developing new features, or reworking
some all-affecting component.

So, here's a patch that adds those new commands so I don't have to
keep patching GDB whenever I want this behaviour.  :-)

Comments?  Eli, is the documentation proper?

-- 
Pedro Alves