Command line length is too long for winsup/cisnatll to build.

[Brian Keener]

Jeez I'm glad you guys found that.  Last couple times I updated setup 
from the cvs I got that and ended up deleting my build and rebuilding and 
then this last time I was working on choose.cc and thought it was 
something I was doing.  I thought it might be an update versus my 
timestamp problem or something.  

Glad you found it and I'll be sure to get that update.