Port Upgrade of XFree

[Gerard Samuel]

Im running into this error trying to upgrade X via portupgrade on a FBSD 
5.1 box

/usr/bin/ld: cannot find -lXfont
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients/work/xc/programs/bdftopcf.
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients/work/xc/programs.
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients.
** Command failed [exit code 1]: /usr/bin/script -qa 
/tmp/portupgrade41317.9 make DEPENDS_TARGET=package
** Fix the problem and try again.

Could anyone point me in the right direction...
Thanks