Comment 2 for bug 654165

Yes. I just tried installing php5-idn on my fully updated Ubuntu 10.04.2, and it failed:

t@t ~> sudo aptitude install php5-idn
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following NEW packages will be installed:
  php5-idn
0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 15,7kB of archives. After unpacking 106kB will be used.
Writing extended state information... Done
Get:1 http://dk.archive.ubuntu.com/ubuntu/ lucid/universe php5-idn 1.2b-5.3ubuntu1 [15,7kB]
Fetched 15,7kB in 0s (54,3kB/s)
Preconfiguring packages ...
Selecting previously deselected package php5-idn.
(Reading database ... 95828 files and directories currently installed.)
Unpacking php5-idn (from .../php5-idn_1.2b-5.3ubuntu1_amd64.deb) ...
Setting up php5-idn (1.2b-5.3ubuntu1) ...
*** WARNING: ucf was run from a maintainer script that uses debconf, but
             the script did not pass --debconf-ok to ucf. The maintainer
             script should be fixed to not stop debconf before calling ucf,
             and pass it this parameter. For now, ucf will revert to using
             old-style, non-debconf prompting. Ugh!

             Please inform the package maintainer about this problem.
Need debconf to interact
dpkg: error processing php5-idn (--configure):
 subprocess installed post-installation script returned error exit status 2
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up php5-idn (1.2b-5.3ubuntu1) ...
*** WARNING: ucf was run from a maintainer script that uses debconf, but
             the script did not pass --debconf-ok to ucf. The maintainer
             script should be fixed to not stop debconf before calling ucf,
             and pass it this parameter. For now, ucf will revert to using
             old-style, non-debconf prompting. Ugh!

             Please inform the package maintainer about this problem.
Need debconf to interact
dpkg: error processing php5-idn (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 php5-idn
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Writing extended state information... Done

t@t ~> cat /etc/issue
Ubuntu 10.04.2 LTS \n \l

t@t ~>