[patch] Hacks to get arm-elf to cross compile

[Andrew Cagney]

Hello,

I've checked in the attatched as a fairly obvious fix.
My memory of previous discussion concluded that:

/* A temporary sop to older compilers */
#if defined (__NetBSD__) || defined (unix)
#  ifndef __unix              /* (good for long-term portability?)  */
#    define __unix    1
#  endif
#endif

was the lesser of many evils.  While the RDI code should be autoconf'ed 
that wasn't likely to happen.

The warning flag in the MAINTAINERS file is set to -w (just ignore 
warnings :-( ).

Can someone check that I've really fixed the IRIX cross compile problem?

	Andrew