apt-cross and dpkg-cross broken on unstable ?

["Hector Oron" <hector.oron@gmail.com>]

Hello,

# apt-get update
# apt-get upgrade
...
Do you want to continue [Y/n]?
Setting up dpkg-cross (1.35) ...
whiptail: error while loading shared libraries: libnewt.so.0.52:
cannot open shared object file: No such file or directory
debconf: whiptail output the above errors, giving up!
dpkg: error processing dpkg-cross (--configure):
subprocess post-installation script returned error exit status 255
dpkg: dependency problems prevent configuration of apt-cross:
apt-cross depends on dpkg-cross; however:
 Package dpkg-cross is not configured yet.
dpkg: error processing apt-cross (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
dpkg-cross
apt-cross
E: Sub-process /usr/bin/dpkg returned an error code (1)


What is going wrong here ? Is dpkg-cross and apt-cross broken on unstable ?