PATCH gas -gstabs : add cwd

[Nick Clifton]

Hi Philippe,

> 2003-10-07  Philippe De Muyter  <phdm@macqel.be>
>
> 	* as.c (use_gnu_debug_info_extensions) : New variable. 
> 	(parse_args) : Accept new --gstabs+ option, and set
> 	`use_gnu_debug_info_extensions'.
> 	(show_usage) : Document --gstabs+ option.
> 	* as.h (use_gnu_debug_info_extensions) : New extern declaration.
> 	* stabs.c (stabs_generate_asm_file) : If
> 	`use_gnu_debug_info_extensions' is set, add the compilation
> 	directory to the stabs debug info.
> 	* doc/as.texinfo : Document --gstabs+ option.

Much better - thanks very much.  I have checked in this patch with one
small addition - an entry in the gas/NEWS file.

Cheers
        Nick