[MLton] mingwows

[Stephen Weeks]

> Stephen, what happens if you recompile MLton with itself twice?  If
> I rebuild MLton with itself twice from within msys, the second
> rebuild fails for me.

I just did three consecutive self compiles within MSYS, starting with
MLton 20051109 and compiling the SVN HEAD, and did not encounter any
problems.  Here are the command lines and version info.

mlton @MLton ram-slop 0.7 gc-summary  -- -target self -verbose 2 -output mlton-compile  mlton.cm
MLton starting
MLton 20051109 (built Wed Nov 09 13:05:53 2005 on unknown)
  created this file on Fri Nov 11 11:10:10 2005.

mlton @MLton ram-slop 0.7 gc-summary  -- -default-ann 'sequenceNonUnit warn' -default-ann 'warnUnused true' -target self -verbose 2 -output mlton-compile  mlton.mlb
MLton starting
MLton MLTONVERSION (built Fri Nov 11 11:27:50 2005 on unknown)
  created this file on Fri Nov 11 11:30:24 2005.

mlton @MLton ram-slop 0.7 gc-summary  -- -default-ann 'sequenceNonUnit warn' -default-ann 'warnUnused true' -target self -verbose 2 -output mlton-compile  mlton.mlb
MLton starting
MLton MLTONVERSION (built Fri Nov 11 12:04:19 2005 on unknown)
  created this file on Fri Nov 11 12:10:55 2005.