installworld error (Shared object "libncursesw.so.8" not found)

Hi,

I am currently getting the following error during a "make installworld":

-------------------------------------------------------------------------------
[...]
===> share/zoneinfo/tests (install)
install  -o root  -g wheel -m 555  backward_test  /usr/tests/share/zoneinfo/backward_test
installing DIRS TESTFILESDIR testsFILESDIR
install  -d -m 0755 -o root  -g wheel  /usr/tests/share/zoneinfo
install  -o root  -g wheel -m 444  /boiler/nfs/src/contrib/tzdata/backward /usr/tests/share/zoneinfo/backward
install  -o root  -g wheel -m 444  /boiler/nfs/src/share/zoneinfo/tests/zoneinfo_common.sh /usr/tests/share/zoneinfo/zoneinfo_common.sh
install  -o root  -g wheel -m 444  Kyuafile /usr/tests/share/zoneinfo/Kyuafile
Updating /etc/localtime
ld-elf.so.1: Shared object "libncursesw.so.8" not found, required by "tzsetup"
*** Error code 1

Stop.
make[5]: stopped in /boiler/nfs/src/share/zoneinfo
*** Error code 1
*** Error code 1
*** Error code 1
*** Error code 1

Stop.
make[1]: stopped in /boiler/nfs/src
*** Error code 1
-------------------------------------------------------------------------------

I did a complete build with a "make clean cleandepend" before.

Has anyone a hint on how to solve this error?

--Gordon