Add support for --with-system-gdbinit

[Daniel Jacobowitz]

On Mon, Jan 26, 2009 at 10:12:34AM +0100, Jerome Guitton wrote:
> 2009-01-26  Daniel Jacobowitz  <dan@codesourcery.com>
> 	    Jerome Guitton  <guitton@adacore.com>
> 
> 	* configure, config.in: Regenerated.
> 	* configure.ac: Add --with-system-gdbinit.
> 	* main.c (get_init_files): New.
> 	(captured_main): Use get_init_files.  Load system gdbinit before
> 	$HOME/.gdbinit.
> 	(print_gdb_help): Print location of init files.

This version looks OK to me.  Thanks!

-- 
Daniel Jacobowitz
CodeSourcery