[jhc] darcs patch: add code to support JGC on windows and OSX (and 4 more)

21 Jul 2010

      Sun Jul 18 19:39:21 PDT 2010  John Meacham 
  * add code to support JGC on windows and OSX

Sun Jul 18 19:53:26 PDT 2010  John Meacham 
  * fix up regression tests

Sun Jul 18 21:54:56 PDT 2010  John Meacham 
  * clean up

Sun Jul 18 23:30:36 PDT 2010  John Meacham 
  * fix bug when setting up the jmp_buf for exception handling.

Mon Jul 19 20:50:46 PDT 2010  John Meacham 
  tagged epamajyumhu