How to configure amount of command history saved by GHCi?

Question

By default, GHCi saves 100 lines of command history in ~/.ghc/ghci_history. Can I increase this number?

I'm using GHC 7.6.3 on GNU/Linux.

Answer 1

On my system (GNU/Linux, GHC 7.6.3), GHCi is built against the haskeline library. According to this document, it can be customised by editing the ~/.haskeline file:

maxhistorysize: Just 1000

Answer 2

As discussed this is the solution for Mac OSX, the other answer is for Linux. I found what your looking for here basically copy pasting the relevant information and formatting it below here.

The default is a history of 100 commands but you can change that by adding this line to your ~/.ghc/ghci.conf:

System.Console.Editline.Readline.stifleHistory 1000

which would increase your history to 1000 commands.