Comment 17 for bug 518122

All did to fix this locally was rebuild against the newer imagemagick packages in lucid, no need to apply any patches

$ cd /usr/src
$ sudo apt-get build-dep librmagick-ruby
$ apt-get source librmagick-ruby
$ cd librmagick-ruby-2.11.1
$ dch -i
(add changelog entry)
$ dpkg-buildpackage
$ cd ..
$ sudo dpkg -i librmagick-ruby*.deb