Comment 4 for bug 402761

Dominik, thanks for pointing that out. I just failed to paste it in. So these are complete instructions for copy&paste, you can paste the whole block into your shell at once:

sudo apt-get build-dep libpanel-applet2-ruby1.8
mkdir /tmp/bla
cd /tmp/bla
apt-get source libpanel-applet2-ruby1.8
cd ruby-gnome2-0.19.0
sed -i -e's/\.so$/*.so/' debian/libpanel-applet2-ruby1.8.install
dpkg-buildpackage
sudo dpkg -i ../libpanel-applet2-ruby1.8_0.19.0-2ubuntu2_*.deb