nogc.cc & darwin

[Andrew Haley]

Bryce McKinlay writes:
 > 
 > I think we should really be using the libc implementations of these 
 > functions since they are faster (written in assembly). We should only 
 > use the fdlibm math functions for targets that don't have a math library 
 > (and possibly also for StrictMath?)

Probably, but until we have a proper implementation of strictfp we're
better off with what we've got.  At least we're compatible with one
Java math library standard...

Andrew.