How to set a program's command line arguments for GHCi?

Question

Suppose some Haskell file is executed with

runghc Queens.hs gecode_compile

Now, this fails, and I want to debug it with ghci. How

Answer 1

You can use the :set command:

Prelude> :set args whatever

This will mean that getArgs returns ["whatever"].

So in your case you should just do this:

Prelude> :set args gecode_compile