[horde] Constants problems

[C.J. Collier]

Heya all,

When I attempt to log in to Horde/Imp after configuring as the INSTALL
file describes, I get these errors:


Notice: Use of undefined constant OP_HALFOPEN - assumed 'OP_HALFOPEN' in
/var/www/mail.colliertech.org/horde/imp/lib/IMP.php on line 121

Notice: Use of undefined constant OP_ANONYMOUS - assumed 'OP_ANONYMOUS'
in /var/www/mail.colliertech.org/horde/imp/lib/IMP.php on line 237

Did I miss an important step?  Do I not have the packages that contain
these constants installed?

Thanks much,

C.J.