Subclassing QThread — undefined reference to vtable
I understand that the undefined reference to vtable error means that I have a pure virtual function that must be implemented. I cannot for the life of me find what I am missing to make this class compile.
class WaspThread : public QThread
@SOURCES += WaspThread.cpp
HEADERS += WaspThread.h@
I have the header and source files in my project file. I have tried cleaning out my build directory and re-running qmake multiple times.
I just figured out the problem. I had forgotten to export the WaspThread class so that the executable utilizing the DLL could find WaspThread. It was a silly mistake. I made it because I forgot that in Windows land you need to export everything whereas in Linux you don't.
Got also hit by that one, did you saw that Qt provides macros to help you export the class cross-platform style ?
On a side note, since you have it working, can you also update the thread title prepending [solved] so other forum users may know a solution has been found :)