Nested handling of optional libs opencv and vision_utils

src/CMakeLists.txt

@@ -516,10 +516,13 @@ IF (raw_gps_utils_FOUND)
     TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${raw_gps_utils_LIBRARY})
 ENDIF (raw_gps_utils_FOUND)
 
-IF (vision_utils_FOUND)
-    TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${vision_utils_LIBRARY})
+
+IF (OPENCV_FOUND)
    	TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${OpenCV_LIBS})
-ENDIF (vision_utils_FOUND)
+	IF (vision_utils_FOUND)
+    	TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${vision_utils_LIBRARY})
+	ENDIF (vision_utils_FOUND)
+ENDIF (OPENCV_FOUND)
 
 IF (YAMLCPP_FOUND)
     TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${YAMLCPP_LIBRARY})