[bfin] Define __bfin__ and __BFIN__

[Joseph S. Myers]

On Thu, 26 Oct 2006, Jie Zhang wrote:

> This patch add __bfin__ and __BFIN__ to bfin port gcc predefined macros. This
> is demanded by
> building newlib outside of gcc source tree. Currently newlib use BFIN macro to
> enclose source code
> specific to Blackfin. fixincludes will fix these macros in newlib header files
> by replacing them
> with __BFIN__, which is not defined by gcc.

The correct approach is to change builtin_define ("bfin") to 
builtin_define_std ("bfin").  Every target use of builtin_define with a 
name not in the reserved namespace is a bug (unless conditioned not to be 
used if flag_iso): bug 545.

-- 
Joseph S. Myers
joseph@codesourcery.com