Scanning dependencies of target FairWind
[ 40%] Building CXX object CMakeFiles/FairWind.dir/FairWind_autogen/mocs_compilation.cpp.o
[ 41%] Building CXX object CMakeFiles/FairWind.dir/main.cpp.o
[ 41%] Building CXX object CMakeFiles/FairWind.dir/ui/MainWindow.cpp.o
[ 42%] Building CXX object CMakeFiles/FairWind.dir/ui/about/About.cpp.o
[ 42%] Building CXX object CMakeFiles/FairWind.dir/ui/topbar/TopBar.cpp.o
[ 43%] Building CXX object CMakeFiles/FairWind.dir/ui/bottombar/BottomBar.cpp.o
[ 43%] Building CXX object CMakeFiles/FairWind.dir/FairWind_autogen/EWIEGA46WW/qrc_resources.cpp.o
[ 43%] Linking CXX executable FairWind
/usr/bin/ld: /home/user/fairwindplusplus/build/external/lib/libfairwindsdk.so: undefined reference to `QGVRasterLayer::QGVRasterLayer(QGVItem*, QString const&)'
/usr/bin/ld: /home/user/fairwindplusplus/build/external/lib/libfairwindsdk.so: undefined reference to `typeinfo for QGVRasterLayer'
/usr/bin/ld: /home/user/fairwindplusplus/build/external/lib/libfairwindsdk.so: undefined reference to `QGVRasterLayer::buildShapes()'
/usr/bin/ld: /home/user/fairwindplusplus/build/external/lib/libfairwindsdk.so: undefined reference to `vtable for QGVRasterLayer'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/FairWind.dir/build.make:224: FairWind] Error 1
make[1]: *** [CMakeFiles/Makefile2:496: CMakeFiles/FairWind.dir/all] Error 2
make: *** [Makefile:103: all] Error 2
