message: example: comment for system-wide install
diff: @@ -8,6 +8,7 @@ add_definitions("-std=c++11 -Wall -Wextra -Werror")
  set(CMAKE_CXX_FLAGS_DEBUG "-DDEBUG")
  include_directories(
  + # Not needed if installed system-wide
  ../install/include
  )
  @@ -17,4 +18,6 @@ add_executable(takeoff_and_land
  target_link_libraries(takeoff_and_land
  ${CMAKE_SOURCE_DIR}/../install/lib/libdronelink.a
  + # If installed system-wide:
  + # dronelink
  )
  