Building packages on Freebsd

[david aubril <david.aubril%ac-nantes.fr@localhost>]

Hi everyone.
I would like to build packages using pkgsrc on freebsd. I've installed
freebsd 7.0 without Xorg ( average user ), copied pkgsrc,
bootstrapped... But when it comes to build something, I get stuck at
X11-links. Building stops with an error code 1 : X headers are missing.
I can't get around that. Should I install freebsd with Xorg ? not sure
it would change anything.
Any ideas ?
Best regards,
David Aubril ( trusiad )