FreeBSD 2.0.3 port closefrom library?

When trying to compile freebsd port of 2.0.3 on 6.3 with the postgresql83 library (also from ports), I get the following: .libs/exec.o(.text+0x536): In function `radius_exec_program': : undefined reference to `closefrom' .libs/session.o(.text+0x4fa): In function `rad_check_ts': : undefined reference to `closefrom' gmake[4]: *** [radiusd] Error 1 I'm not familiar with "closefrom" Which library needs to be included? Thanks.