On a Mac, do this:

1. Comment out the following line in tutorial6.hs

module Tutorial6 where


2. Add a main function in tutorial6.hs with the display command that you want to test, such as:

main :: IO ()
main = display (Go 30 :#: Turn 120 :#: Go 30 :#: Turn 120 :#: Go 30)


3. Compile the code in the terminal with

ghc --make tutorial6.hs


4. Run the code with

./tutorial6


5. Then, to terminate your application type ctrl-C ctrl-C in the terminal window.


Thanks to Stephen Gilmore for these instructions.