This website provides AntLang executables for various systems.
If there is one for your OS, you can just follow the tutorial.
Clone this git-repository.
You will need all haskell files (.hs) and all grammar files (.y).
You can clone using git.
git clone "https://github.com/ac1235/src.git"
You need GHC and Happy to follow.
Both are part of the Haskell platform.
Install it for your OS and then goto step 4.
Generate Parser.hs from the grammar file using Happy.
happy -o Parser.hs grammar.y
Build the executable.
ghc -O2 -rtsopts -o EXECUTABLE Main.hs
Follow the AntLang tutorial to see how to call the executable correctly.