Libc version error at PostgreSQL Server

[ifconfig]

Hi everyone;

I use freeradius2 and want to authorize Captive Portal users with PostgreSQL Server.
My steps:

1) pkg_add -f ftp://ftp.freebsd.com/pub/FreeBSD/ports/i386/packages-8-stable/databases/postgresql-server-9.0.9.tbz
    2) echo "postgresql_enable=YES" >> /etc/rc.conf (I know rc.conf will be removed at boot time but testing for now)
    3) /usr/local/etc/rc.d/postgresql initdb

And get error here: /libexec/ld-elf.so.1: /lib/libc.so.7: version FBSD_1.3 required by /usr/local/bin/postgres not found
no data was returned by command ""/usr/local/bin/postgres" -V"

What Can it be about? I also tried on FreeBSD and get worked. Can pfSense patches cause it? or a removed library or file listed in remove.list?

[cmb]

8-stable packages won't necessarily work on 8.1. You may need to build a package on a stock 8.1 system, copy it over, and pkg_add that.

[ifconfig]

@cmb:

8-stable packages won't necessarily work on 8.1. You may need to build a package on a stock 8.1 system, copy it over, and pkg_add that.

Thank you!

I installed postgresql90-server on FreeBSD 8.1 and run:
pkg_create -b /var/db/pkg/postgresql-server-9.0.12 (port revision number may be different)
postgresql-server-9.0.12.tbz is created in the same directory that you run command.
moved it pfSense and install.

[ifconfig]

And a little tip to who wants to use Freeradius 2 with PostgreSQL:
Accounting operations work correctly with MySQL but with PostgreSQL, don't update the radacct table. So, some attributes like Session-Timeout don't work.