On 02/10/2014 02:09 PM, David C. Rankin wrote: OK, I found your problem. You are never building cppeditor which causes all subsequent attempts to use it to fail with the error: /dev/shm/tqt3/plugins/designer/libcppeditor.so: undefined symbol: _ZN6Editor11eventFilterEP8TQObjectP7TQEvent Here is the situation. For whatever reason (I can't explain) when you get to: line 3536: cd cppeditor && make -f Makefile <no cppeditor build follows> cd dlg && make -f Makefile cd glade && make -f Makefile make[5]: Entering directory `/dev/shm/tqt3/tools/designer/plugins/wizards' In my log, when I get to: line 3025: cd cppeditor && make -f Makefile make[4]: Entering directory '/build/tde-tqt3/src/tqt3/tools/designer/plugins/cppeditor'^M /build/tde-tqt3/src/tqt3/bin/tquic -L /build/tde-tqt3/src/tqt3/plugins projectsettings.ui -o projectsettings.h^M /build/tde-tqt3/src/tqt3/bin/tquic -L /build/tde-tqt3/src/tqt3/plugins mainfilesettings.ui -o mainfilesettings.h^M g++ -c -pipe -I/usr/include/mysql -I/usr/include/postgresql/server -I/usr/include/libiodbc -fno-exceptions -Wall -W - march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -D_REENTRANT -fPIC -DQT_NO_DEBUG - DQT_THREAD_SUPPORT -DQT_PLUGIN -DQT_SHARED -I/build/tde-tqt3/src/tqt3/mkspecs/linux-g++-64 -I. -I/usr/include/freetyp e2 -I../../interfaces -I../../editor -I../../editor -I../../../../include -I/usr/X11R6/include -I.moc/release-shared- mt/ -o .obj/release-shared-mt/cppeditor.o cppeditor.cpp^M <I get a log of cppeditor building> So you are legitimately getting the undefined symbol errors because the cppeditor files were not built. -- Why were they not built? (I don't know, but we will blame Slavek for now) Seriously, I have no clue why you don't have build information following the 'cd cppeditor && make -f Makefile' line, but you do not. -- David C. Rankin, J.D.,P.E.