[MLton] building mlton for darwin + intel

[Thant Tessman]

Just wanted to let you know that the mlton build you provided seems to 
be working just fine on my Macinteltosh. Lots o' source files, and mllex 
and mlyacc as well. Pretty dern'd cool.

But I also wanted to clarify my earlier question about dynamically 
linking to gmp. My question was not just about whether folks considered 
gmp ubiquitous enough, but why mlton the compiler needs it at all. Does 
it actually use IntInf internally? I was also going to ask why it needed 
libgmp.3.dylib specifically instead fo libgmp.so or libgmp.la (which I 
assume is just a different name for .so), but I held back until I get 
farther into the mechanics of building mlton executables.

Regardless, thanks for your help. This is actually for something I'll 
probably wind up sharing with the world (on the extremely remote chance 
the world wants it).

-thant