I did and had no troubles at all. The reason is that I always always
tell people to do this. Try to avoid "mixing" any native mac /usr lib/
binaries. ESPECIALLY WITH MACPORTS. because as soon as you do and you
upgrade... you just introduced dependency hell. I always install ruby
1.8.7/1.9.1 via MacPorts and always install everything needed for the
stack via it and hence into the opt directory. Because of that, I
installed Snow Leopard and had no issues, other than visor terminal [1].
I recommend that you built everything into /opt with MacPorts.
Remember to add the +odbc option to the freetds port so it links up
with unixODBC. You have to port install unixODBC first too.
- Ken
[1]
http://www.metaskills.net/2009/8/18/visor-terminal-on-snow-leopard