Add realpath Prototype

[Yaakov (Cygwin/X)]

On 2013-11-18 12:24, Joel Sherrill wrote:
> I added the realpath() prototype more or less where
> glibc has it in stdlib.h.
>
> Also added restrict to Linux implementation.
>
> Does this look ok to commit?

Your patch includes a duplicate declaration of qsort().

Also, Cygwin provides its own prototype of realpath in its own headers, 
so either that needs to be removed, or this prototype placed in a 
!__CYGWIN__ block; I'll let Corinna decide which she prefers.


Yaakov
Cygwin/X