enable CMake builds with spacenav (contributed by Kevin Cozens)

CMakeLists.txt

@@ -457,7 +457,7 @@ if(UNIX AND NOT APPLE)
 			set(NDOF /usr)
 			set(NDOF_INC ${NDOF}/include)
 			set(NDOF_LIB spnav)
-			set(NDOF_LIBPATH ${FFTW3}/lib)
+			set(NDOF_LIBPATH ${NDOF}/lib)
 		endif()
 	endif()
 

build_files/cmake/macros.cmake

@@ -193,6 +193,9 @@ macro(SETUP_LIBDIRS)
 	if(WITH_MEM_JEMALLOC)
 		link_directories(${JEMALLOC_LIBPATH})
 	endif()
+	if(WITH_NDOF)
+		link_directories(${NDOF_LIBPATH})
+	endif()
 
 	if(WIN32 AND NOT UNIX)
 		link_directories(${PTHREADS_LIBPATH})
@@ -314,6 +317,10 @@ macro(setup_liblinks
 	if(WITH_MEM_JEMALLOC)
 		target_link_libraries(${target} ${JEMALLOC_LIBRARIES})
 	endif()
+	if(WITH_NDOF)
+		target_link_libraries(${target} ${NDOF_LIBRARY})
+	endif()
+
 	if(WIN32 AND NOT UNIX)
 		target_link_libraries(${target} ${PTHREADS_LIBRARIES})
 	endif()