svr4.h avoidance: xstormy16

[Nick Clifton]

Hi Joseph,

> 2010-12-09  Joseph Myers<joseph@codesourcery.com>
>
> 	* config/stormy16/stormy16.h (LINK_SPEC, WCHAR_TYPE): Define.
> 	* config.gcc (xstormy16-*-elf): Don't use svr4.h.

Approved - please apply.

Cheers
   Nick