OK, I've got it and tested it!

freeswitch@freeswitch:8021@internal> version 

FreeSWITCH Version 1.5.15b+git~20150425T191526Z~3058709a92~64bit (git 3058709 2015-04-25 19:15:26Z 64bit)

Update system to the latest:

pkgin up

pkgin ug

Install the necessary software:

pkgin install git gcc47 gmake autoconf gettext gettext-m4 automake libtool pkg-config \

unixodbc speex libogg libvorbis libshout ldns editline libjpeg-turbo libpqxx yasm nasm

mkdir /opt/local/src

cd /opt/local/src

To build from the current release source code:

git clone -b v1.4 https://stash.freeswitch.org/scm/fs/freeswitch.git

(or if you want to build from Master, the latest source code: git clone https://freeswitch.org/stash/scm/fs/freeswitch.git )

cd freeswitch

./bootstrap.sh -j

 If you want to add or remove modules from the build, edit modules.conf

vi modules.conf 

./configure -C --prefix=/opt/local/freeswitch --enable-64 --enable-optimization --enable-core-pgsql-support

make

make install

make cd-sounds-install cd-moh-install

When finished, FreeSWITCH should be located under /opt/local/freeswitch

Enjoy and stay tuned!