ROSTutorialsWritingPublisherSubscriber(c++) CMakeLists.txt include_directories
I have done the tutorial successfully, catkin_make and execution work.
The tutorial says:
include_directories(include ${catkin_INCLUDE_DIRS})
But I did, and it still works:
include_directories( ${catkin_INCLUDE_DIRS})
So , the word include is optional? why? Thanks in advance