Merge ada/adaint.[ch]

[Arnaud Charlet]

> to the GCC tree weren't applied to the FSF tree whereas
> all other were:
> 
> 2003-01-29	Joel Sherrill <joel@OARcorp.com>
> 	* adaint.h: Add include of <stdio.h> when target is RTEMS.  This
> 	is likely needed for all newlib targets.

This is isn't. We'll consider patches for inclusion in our tree.

> and the max_path_len part of:

This one as I explained previousely is more controversial, since it breaks
existing code for very little gain.

Arno