Error while building with cppunit

[Edenhofer]

Make drops the following error as long as the package "cppunit" is installed.

MYCOMPILATIONDIR/src/grive-git/libgrive/test/drive/StateTest.cc:24:26: fatal error: drive/State.hh: No such file or directory
compilation terminated.
libgrive/CMakeFiles/unittest.dir/build.make:77: recipe for target 'libgrive/CMakeFiles/unittest.dir/test/drive/StateTest.cc.o' failed
make[2]: *** [libgrive/CMakeFiles/unittest.dir/test/drive/StateTest.cc.o] Error 1
CMakeFiles/Makefile2:149: recipe for target 'libgrive/CMakeFiles/unittest.dir/all' failed
make[1]: *** [libgrive/CMakeFiles/unittest.dir/all] Error 2
Makefile:116: recipe for target 'all' failed
make: *** [all] Error 2