Problem updating ports - AFFECTS: users of security/libtasn1

[AN]

20131103:
   AFFECTS: users of security/libtasn1 and any port that depends on it
   AUTHOR: novel at FreeBSD.org

   libtasn1 has been updated to 3.3 and all shared libraries versions have
   been bumped. So you need to rebuild all applications that depend on
   libtasn1.


FreeBSD FBSD11 11.0-CURRENT FreeBSD 11.0-CURRENT #9 r257597: Sun Nov  3 
17:55:01 2013     root at FBSD11:/usr/obj/usr/src/sys/MYKERNEL  amd64

Trying to update ports with portupgrade -vfr security/libtasn1 results in 
the following:
Packages processed: 23 done, 0 ignored, 58 skipped and 2 failed

The problem seems to be caused when updating the following port:
! security/libgnome-keyring (libgnome-keyring-2.32.0_5)	(unknown build 
error)

cd /usr/ports/security/libtasn1/work/libtasn1-3.3 && install  -o root -g 
wheel -m 444 AUTHORS NEWS README THANKS doc/TODO  doc/libtasn1.html 
doc/libtasn1.pdf doc/libtasn1.ps 
/usr/ports/security/libtasn1/work/stage/usr/local/share/doc/libtasn1
====> Compressing man pages (compress-man)
===>  Installing for libtasn1-3.3
===>  Checking if security/libtasn1 already installed
===>   libtasn1-3.3 is already installed
       You may wish to ``make deinstall'' and install this port again
       by ``make reinstall'' to upgrade it properly.
       If you really wish to overwrite the old port of security/libtasn1
       without deleting it first, set the variable "FORCE_PKG_REGISTER"
       in your environment or the "make install" command line.
*** Error code 1

Stop.
make[2]: stopped in /usr/ports/security/libtasn1
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/security/libtasn1
*** Error code 1

Stop.
make: stopped in /usr/ports/security/libgnome-keyring
** Command failed [exit code 1]: /usr/bin/script -qa 
/tmp/portupgrade20131103-84948-tu4lob env UPGRADE_TOOL=portupgrade 
UPGRADE_PORT=libgnome-keyring-2.32.0_5 UPGRADE_PORT_VER=2.32.0_5 make
** Fix the problem and try again.
--->  Build of security/libgnome-keyring ended at: Sun, 03 Nov 2013 
22:31:00 -0600 (consumed 00:00:07)
--->  Reinstallation of security/libgnome-keyring ended at: Sun, 03 Nov 
2013 22:31:00 -0600 (consumed 00:00:07)
--->  ** Upgrade tasks 1: 0 done, 0 ignored, 0 skipped and 1 failed
--->  Listing the results (+:done / -:ignored / *:skipped / !:failed)
 	! security/libgnome-keyring (libgnome-keyring-2.32.0_5)	(unknown 
build error)
--->  Packages processed: 0 done, 0 ignored, 0 skipped and 1 failed
--->  Session ended at: Sun, 03 Nov 2013 22:31:00 -0600 (consumed 
00:00:08)