sylpheed-claws-gtk2-vcalendar-plugin: undefined symbol: plugin_version

Originally reported using reportbug. Filing by proxy.

Original report follows:
From: Patrik Modesto <email address hidden>
From: <email address hidden>
To: Ubuntu Bug Tracking System <email address hidden>
Subject: sylpheed-claws-gtk2-vcalendar-plugin: undefined symbol: plugin_version
Date: Tue, 12 Sep 2006 08:34:34 +0200
X-Mailer: reportbug 3.18ubuntu1

Package: sylpheed-claws-gtk2-vcalendar-plugin
Version: 1.7-1
Severity: grave
Justification: renders package unusable

When loading plugin vcalendar, this error message appears:

The following error occured while loading the plugin
[/usr/lib/sylpheed-claws-gtk2/plugins/vcalendar.so] :
`plugin_version': /usr/lib/sylpheed-claws-gtk2/plugins/vcalendar.so:
undefined symbol: plugin_version

Other plugins, like PGP and Trayicon, works well.

HTH

Patrik

-- System Information:
Debian Release: testing/unstable
  APT prefers dapper-updates
  APT policy: (500, 'dapper-updates'), (500, 'dapper-security'), (500, 'dapper-backports'), (500, 'dapper')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-26-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages sylpheed-claws-gtk2-vcalendar-plugin depends on:
ii libatk1.0-0 1.11.4-0ubuntu1 The ATK accessibility toolkit
ii libc6 2.3.6-0ubuntu20 GNU C Library: Shared libraries an
ii libcairo2 1.0.4-0ubuntu1 The Cairo 2D vector graphics libra
ii libfontconfig1 2.3.2-1.1ubuntu12 generic font configuration library
ii libglib2.0-0 2.10.3-0ubuntu1 The GLib library of C routines
ii libgtk2.0-0 2.8.20-0ubuntu1 The GTK+ graphical user interface
ii libpango1.0-0 1.12.3-0ubuntu3 Layout and rendering of internatio
ii libx11-6 2:1.0.0-0ubuntu9 X11 client-side library
ii libxcursor1 1.1.5.2-0ubuntu4 X cursor management library
ii libxext6 2:1.0.0-0ubuntu4 X11 miscellaneous extension librar
ii libxfixes3 1:3.0.1.2-0ubuntu3 X11 miscellaneous 'fixes' extensio
ii libxi6 2:1.0.0-0ubuntu3 X11 Input extension library
ii libxinerama1 2:1.0.1-0ubuntu2 X11 Xinerama extension library
ii libxrandr2 1:1.1.0.2-0ubuntu4 X11 RandR extension library
ii libxrender1 1:0.9.0.2-0ubuntu2 X Rendering Extension client libra
ii sylpheed-claws-gtk2 2.1.1-1ubuntu1 Extended GTK2 version of the Sylph

sylpheed-claws-gtk2-vcalendar-plugin recommends no packages.

-- no debconf information