Our bundled libs, which come with an external copy (e.g. liborcus, libwp*) are wildly untested when not build with the same version as the bundled copy, see for example:
./configure should strictly check the versions that a LibreOffice release will work with. IMHO it is better to be too strict than too liberal (that is accepting external versions that accidentally work), as everything else results is huge additional workload for the QA.
So for example liborcus should be checked to be libocrus-0.4 for LibreOffice 4.0.x and libocrus-0.6 for LibreOffice 4.1.x/master.
adding LibreOffice developer list as CC to unresolved EasyHacks for better visibility.
see e.g. http://nabble.documentfoundation.org/minutes-of-ESC-call-td4076214.html for details
Migrating Whiteboard tags to Keywords: (EasyHack DifficultyBeginner SkillScript)
JanI is default CC for Easy Hacks (Add Jan; remove LibreOffice Dev List from CC)