Bultins functions execl... for mingw

[Jakub Jelinek]

On Wed, Jan 30, 2008 at 02:29:15PM +0100, Richard Guenther wrote:
> c) Supressing this builtin on mingw64
> 
> ... should be the correct thing.

You could just call disable_builtin_function ("execl") and similarly
for other exec* family functions from i386/mingw-c.c

	Jakub