Add -enable-threads=gnat

[Richard Henderson]

On Tue, Apr 22, 2003 at 05:59:56PM -0400, Richard Kenner wrote:
> + extern void __gnat_install_locks (void (*lock) (), void (*unlock) ());

You'll not be able to call this function unless you add it
to libgcc-std.ver.  BTW, what's the point of this?


r~