ports/print/cups-base: failed to update via portmaster since yesterday

[O. Hartmann]

portmaster -dav fails updating ports since yesterday, stopping at 
print/cups-base with the following error message:

[...]
client.o(.text+0x1c95): In function `encrypt_client':
/usr/ports/print/cups-base/work/cups-1.4.2/scheduler/client.c:3217: 
undefined reference to `_httpReadGNUTLS'
client.o(.text+0x1ca4):/usr/ports/print/cups-base/work/cups-1.4.2/scheduler/client.c:3218: 
undefined reference to `_httpWriteGNUTLS'
gmake[1]: *** [cupsd] Error 1
gmake[1]: Leaving directory 
`/usr/ports/print/cups-base/work/cups-1.4.2/scheduler'
gmake: *** [all] Error 1
*** Error code 1

Stop in /usr/ports/print/cups-base.
*** Error code 1

Stop in /usr/ports/print/cups-base.

===>>> make failed for print/cups-base
===>>> Aborting update

===>>> Update for cups-base-1.3.10_4 failed
===>>> Aborting update

----

Configuration of cups-base is with all but debugging options set, 
disabling all configurational options, especially GNU_TLS also fails 
updating the port. Is there any solution to fix this? What's wrong?

Regards,
Oliver