[PATCH] add base fenv and spu fenv support

[Jeff Johnston]

Patrick Mansfield wrote:
> Attached is a repost of the spu fenv patches rolled into one patch, with
> the following changes since the last posting:
> 
> - Rebase against current cvs (avoid rejection in configure.host)
> 
> - Add missing #include <fenv.h> in fe_dfl_fenv.c
> 
> - Add __cplusplus wrappers in fenv.h
> 
> - Use _EXFUN in fenv.h
> 
> - Add #ifndef _FENV_H and #ifndef _SYS_FENV_H wrappers
> 
> Jeff can you comment or apply?
>

1. Why are you using "../headers" in your C files when the C files and
    "headers" subdirectory are in the same directory?
2. There is an explicit copyright in sys/fenv.h but no license.
3. I do not see any real advantage to having the fenv.h in the
    main include directory since it only declares std prototypes,
    doesn't work for any platform but spu and has a documentation
    clause.  At this time, it would be best to just place it in
    machine/spu/include

-- Jeff J.




> Thanks ...
> 
> -- Patrick Mansfield