Running update-webkitgtk-libs failed for me on fontconfig, since it checks for docbook2html to decide whether to build documentation, which I have, then tries to use docbook2pdf, which I don't. We don't really want to be building documentation for dependencies anyway.
Created attachment 242169 [details]
Perhaps just add docbook2pdf to install-dependencies?
Created attachment 242177 [details]
Comment on attachment 242177 [details]
Clearing flags on attachment: 242177
Committed r176526: <http://trac.webkit.org/changeset/176526>
All reviewed patches have been landed. Closing bug.