[Patch Darwin] adjust crts for Darwin >= 10.

[Mike Stump]

On Nov 30, 2011, at 7:27 AM, Iain Sandoe <developer@sandoe-acoustics.co.uk 
 > wrote:

> The vendor's tools no longer use crts for dylibs or bundles for  
> Darwin 10.
> They also use "crt1.10.6.o" for exes.

> OK for trunk?

Ok.