Building file: ../widgets/TransformWidget.cpp
Invoking: GCC C++ Compiler
g++ -I/usr/include/ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"widgets/TransformWidget.d" -MT"widgets/TransformWidget.d" -o"widgets/TransformWidget.o" "../widgets/TransformWidget.cpp"
/usr/local/include/osg/ref_ptr: In constructor ‘osg::ref_ptr<T>::ref_ptr(T*) [with T = Renderable]’:
../widgets/../include/widgets/../DataEntry.h:34:   instantiated from here
/usr/local/include/osg/ref_ptr:27: error: invalid use of undefined type ‘struct Renderable’
../widgets/../include/widgets/../DataEntry.h:16: error: forward declaration of ‘struct Renderable’
/usr/local/include/osg/ref_ptr: In destructor ‘osg::ref_ptr<T>::~ref_ptr() [with T = Renderable]’:
../widgets/../include/widgets/../DataEntry.h:34:   instantiated from here
/usr/local/include/osg/ref_ptr:30: error: invalid use of undefined type ‘struct Renderable’
../widgets/../include/widgets/../DataEntry.h:16: error: forward declaration of ‘struct Renderable’
/usr/local/include/osg/ref_ptr: In copy constructor ‘osg::ref_ptr<T>::ref_ptr(const osg::ref_ptr<T>&) [with T = Renderable]’:
../widgets/../include/widgets/../DataEntry.h:34:   instantiated from here
/usr/local/include/osg/ref_ptr:28: error: invalid use of undefined type ‘struct Renderable’
../widgets/../include/widgets/../DataEntry.h:16: error: forward declaration of ‘struct Renderable’
make: *** [widgets/TransformWidget.o] Error 1