Like to add some additional info:
I'm using the latest stable freeswitch and Postgres9.2.1, runing on CentOS6.2.
and built the luaSql per the wiki, the config file was changed as below
 
T= postgres
#T= sqlite
#LUA_INC= $(PREFIX)/include
LUA_INC= /usr/local/src/freeswitch/src/mod/languages/mod_lua/lua/
######## PostgreSQL
DRIVER_LIBS= -L/opt/postgres9.2/lib -lpq
DRIVER_INCS= -I/opt/postgres9.2/include/
....
 
Thanks,
Kevin
From: kevin.jzh@hotmail.com
To: freeswitch-users@lists.freeswitch.org
Date: Fri, 4 Jan 2013 20:55:55 +0800
Subject: [Freeswitch-users] Luasql.postgres loading issue

Hi All,
 
I'm using lua to the access the postgresql, but get the error as below.  Any help is appreciated.
I did a lot search in the list and on internet, however didn't find the solution.
 
2013-01-03 18:16:02.165155 [NOTICE] switch_ivr.c:1801 Transfer sofia/internal/kevin@192.168.1.200 to XML[9908@default]
2013-01-03 18:16:02.165155 [INFO] mod_dialplan_xml.c:557 Processing kevin <kevin>->9908 in context default
2013-01-03 18:16:02.243548 [ERR] mod_lua.cpp:198 error loading module 'luasql.postgres' from file '/usr/local/lib/lua/5.1/luasql/postgres.so':
        /usr/lib/libnssutil3.so: undefined symbol: PR_GetDirectorySeparator
stack traceback:
        [C]: ?
        [C]: in function 'require'
        /opt/freeswitch/scripts/cbdemo.lua:1: in main chunk
 
 
Thanks,
Kevin

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