Hmm, I can't compile HEAD anymore now. Seems to have started with commit 76072d9 (Remove most hard-coded control sizes). Error messages are mostly these:
debug/model_editor_ctrl.h:117:3: error: 'set_value' was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
In revision d89cdad (Switch from ColladaDOM to pugixml) the same set_value messages show up as warnings, allowing building to complete. Using GCC 4.7.2 (Ubuntu 12.10).