[SR-Users] issue when trying to start kamailio using db_postgres and dialplan modules

[David Escartín]

hello all

we are having an issue when trying to start kamailio using these modules 
and a kamailio version higher than 4.2

we install libpq5 and libpq-dev and we always have this error

  0(10800) ERROR: <core> [core/sr_module.c:582]: load_module(): could 
not open module 
</usr/local/kamailio-5.0/lib64/kamailio/modules/db_postgres.so>: 
/usr/local/kamailio-5.0/lib64/kamailio/modules/db_postgres.so: undefined 
symbol: PQconnectdbParams

do you know which lib or packet would we miss? we are trying to install 
it on centos6, ubuntu 10 or centos7

best regards
david