Just download the nightly snapshot and installed.
When I tried to start it with ODBC, it has following error:
root@lyvt100-2:/usr/local/freeswitch/bin# ./freeswitch
2011-12-13 15:16:30.167564 [INFO] switch_event.c:637 Activate Eventing Engine.
2011-12-13 15:16:30.183610 [DEBUG] switch_event.c:616 Create event dispatch thread 0
2011-12-13 15:16:31.737119 [INFO] switch_nat.c:419 Scanning for NAT
2011-12-13 15:16:31.738025 [DEBUG] switch_nat.c:169 Checking for PMP 1/5
2011-12-13 15:16:31.738330 [ERR] switch_nat.c:200 Error checking for PMP [general error]
2011-12-13 15:16:31.738414 [DEBUG] switch_nat.c:424 Checking for UPnP
2011-12-13 15:16:44.039464 [INFO] switch_nat.c:440 No PMP or UPnP NAT devices detected!
2011-12-13 15:16:44.082799 [INFO] switch_core_sqldb.c:1762 Opening DB
2011-12-13 15:16:44.109064 [ERR] switch_odbc.c:489 ERR: [begin;delete from channels where hostname='';delete from channels where hostname='';commit;]
[STATE: 42000 CODE 1064 ERROR: [unixODBC][MySQL][ODBC 5.1 Driver][mysqld-5.0.77]You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'delete from channels where hostname='';delete from channels where hostname='';co' at line 1
]
2011-12-13 15:16:44.109426 [ERR] switch_core_sqldb.c:474 SQL ERR [STATE: 42000 CODE 1064 ERROR: [unixODBC][MySQL][ODBC 5.1 Driver][mysqld-5.0.77]You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'delete from channels where hostname='';delete from channels where hostname='';co' at line 1
]
begin;delete from channels where hostname='';delete from channels where hostname='';commit;
2011-12-13 15:16:44.109539 [ERR] switch_core_sqldb.c:1827 Transactions not supported on your DB, disabling ODBC
2011-12-13 15:16:44.119269 [INFO] switch_core_sqldb.c:1762 Opening DB
2011-12-13 15:16:44.272449 [DEBUG] switch_scheduler.c:214 Added task 1 heartbeat (core) to run at 1323807404
2011-12-13 15:16:44.272795 [DEBUG] switch_scheduler.c:214 Added task 2 check_ip (core) to run at 1323807404
2011-12-13 15:16:44.273273 [CONSOLE] switch_core.c:1817 Bringing up environment.
2011-12-13 15:16:44.273372 [CONSOLE] switch_core.c:1818 Loading Modules.