Here is a .tar.gz file of the snort port upgraded to snort-2.3.3, as snort 2.1.2 is getting pretty old now. I tried contacting the maintainer twice, and received no answer what-so-ever, so here it is. It compiles fine with all the FLAVOR's enabled and I ran it by itself, logged packets and alerts and everything. I haven't tested logging to mysql/postgresql databases yet, but I imagine that if it compiled fine, it should be able to connect OK. Please test, thanks.
Jason
snort-2.3.3-obsd-port.tar.gz
Description: GNU Zip compressed data