using gcc -O1

[Suresh Jagannathan]

Glancing at the results of running gcc at optimization
level 1 on the small benchmarks, it looks as though the
c compile times improve noticeably (sometimes > 50%),
and the running times remain essentially unchanged.  
I'm not sure whether this is a viable option for the
self-compile and the kit, but it seems to be a win for
the smaller benchmarks.  

The two log files are:

 ~suresh/research/mlton/sml/logs/benchmarks/1999-03-04-17:07:46.html
 ~suresh/research/mlton/sml/logs/benchmarks/1999-03-05-17:52:48.html

The latter one is run with -O1.

		-- sj