add libusb directory to RPATH

Author: floe

examples/protonect/CMakeLists.txt

@@ -194,6 +194,8 @@ IF(ENABLE_OPENCL)
   ENDIF(OPENCL_FOUND)
 ENDIF(ENABLE_OPENCL)
 
+SET(CMAKE_INSTALL_RPATH ${LibUSB-1.0_LIBDIR})
+
 CONFIGURE_FILE("${MY_DIR}/include/libfreenect2/config.h.in" "${MY_DIR}/include/libfreenect2/config.h" @ONLY)
 GENERATE_RESOURCES(${RESOURCES_INC_FILE} ${MY_DIR} ${RESOURCES})