kamailio config for the 64 bit

kamailio version : 4.2.0
os version : CentOS 6.5 64bit ( 2.6.32-431.el6.x86_64 )

vi /usr/local/etc/kamailio/kamailio.cfg

# set paths to location of modules (to sources or installation folders)
#!ifdef WITH_SRCPATH
mpath="modules_k:modules"
#!else
mpath="/usr/local/lib64/kamailio/modules_k/:/usr/local/lib64/kamailio/modules/"
#!endif