Hi all,

I recently needed to add a hook for the "info threads" command. 
Unfortunately, this was not possible because GDB only allows hooking of 
single word commands.
This patch adds support for multi-word command (prefix command) hooks. 
In my case, the format of the hook commands is:

define hook-info_threads
define hookpost-info_threads

Sorin

gdb/cli/
2011-03-09  Sorin Otescu<sorinu@gmail.com>

	* cli-script.c (define_command): Add support for hooking prefix commands.
         Example usage: for hooking "info threads", a hook command will be defined as:
         define hook-info_threads and/or define hookpost-info_threads