The problem lies in libswt3.2-gtk-jni. This package builds against old version of xulrunner (build dependency iceape-dev) and it does not have dependency xulrunner added. Hence it fails to lookup the symbol.
The problem of wrong dependency is present with libswt-mozilla-gtk-3.4-jni as well, where it builds against new version of xulrunner and depends on old version. tuxguitar has dependency on 'libswt-mozilla-gtk-3.4-jni | libswt3.2-gtk-java'. So none of the dependencies pull the actual libxpcom.so required by tuxguitar to show documentation. I have solved this problem in Ubuntu by doing two changes. 1. Make libswt-mozilla-gtk-3.4-jni depend on xulrunner-1.9. 2. Tighten dependencies in tuxguitar to use only libswt3.4-* packages. This also makes sure that tuxguitar gets printing support provided by swt-gtk 3.3+. Hope this information helps. Cheers, Onkar -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org