root@debian:/# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
debconf: Perl may be unconfigured (Quantifier follows nothing in regex; marked by <-- HERE in m/* <-- HERE  zconf.h -- configuration of the zlib compression library
 * Copyright (C) 1995-2012 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h
 */ at /usr/share/perl5/Debconf/ConfModule.pm line 4.
Compilation failed in require at /usr/share/perl5/Debconf/AutoSelect.pm line 8.
BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/AutoSelect.pm line 8.
Compilation failed in require at (eval 1) line 8.
BEGIN failed--compilation aborted at (eval 1) line 8.
) -- aborting
Setting up man-db (2.6.2-1) ...
Quantifier follows nothing in regex; marked by <-- HERE in m/* <-- HERE  zconf.h -- configuration of the zlib compression library
 * Copyright (C) 1995-2012 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h
 */ at /usr/share/perl5/Debconf/ConfModule.pm line 4.
Compilation failed in require at /usr/share/perl5/Debconf/AutoSelect.pm line 8.
BEGIN failed--compilation aborted at /usr/share/perl5/Debconf/AutoSelect.pm line 8.
Compilation failed in require at /usr/share/debconf/frontend line 8.
BEGIN failed--compilation aborted at /usr/share/debconf/frontend line 8.
dpkg: error processing man-db (--configure):
 subprocess installed post-installation script returned error exit status 255
Errors were encountered while processing:
 man-db
E: Sub-process /usr/bin/dpkg returned an error code (1)