I'm not an expert in this area, but one particular thread on a developer list that I follow caught my attention:
http://mail.gnome.org/archives/planner-dev-list/2008-April/msg00005.html Will planner cease to compile on stock OpenSolaris, or are we pulling in the latest libxslt? There is discussion in the thread above regarding how this won't be a problem for some Linux distros due to their integration of the latest libxslt... -Seb
