[Ur] Compiling ur/web on Mac OS X 10.6 (Snow Leopard)

[Adam Chlipala]

Christoph Angerer wrote:
> Is MLton that essential for Ur, btw? My impression is, that the sml/nj for example is much easier to install and in "better shape", but that just might be the impression of an unknowing outsider.
>    

The Ur build process won't build a standalone executable with SML/NJ 
right now.  It could be done, but these executables would also perform 
much less well.  I hope we can get this sorted out with the MLton 
development team to avoid the issue.