Haskell is a purely functional programming language, general purpose, named after the logician Haskell Curry.

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117 views

Installing EclipseFP on Mac OS X

I am trying to install EclipseFP. I'm running OS X Mavericks. I've tried following both the official installation instructions and the advice in this answer on SU, but I'm still having the same ...
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1answer
76 views

Compiling Pandoc Haskell script: Could not find module `Text.Pandoc.JSON'

I am trying to use a canned example from Pandoc's scripting page, but I don't understand enough Haskell to make this work. Here's the script. #!/usr/bin/env runhaskell -- includes.hs import ...
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21 views

How can I add an extra flag to Leksah?

How can I add an extra flag to Leksah? I'm getting this error: You need -XDeriveDataTypeable to derive an instance .... Where can I add the extra flag in Leksah?
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365 views

Xmonad can't find module XMonad

Whenever xmonad starts, restarts, or is recompiled, I get an xmessage: xmonad.hs:1:8: Could not find module `XMonad' Perhaps you meant Monad (needs flag -package haskell98-2.0.0.2) ...
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100 views

Installing haskell ghc fails

I am trying to install Haskell-2012.4.0.0.exe on my computer running windows 7. When I run the installer I get the following message and the installation fails, Installer integrity check has failed. ...
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183 views

Installing haskell platform fails

I am trying to install haskell-platform-2011.2.0.1 onto my SUSE 11.4. I have got all the dependencies required for ./configure, which works ok. But when getting to make, it builds with this error: ...
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400 views

ghc6 install trouble: hGetContents: invalid argument (invalid UTF-8 byte sequence)

Having trouble installing ghc6 on Ubuntu Maverick via apt. Here's what seems to be the relevant error that comes up when I try to (apt-get|aptitude) install ghc6: A package failed to install. ...
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163 views

libedit ignores editrc file in Ubuntu Lucid

I'm trying to get ghci (Haskell's interactive command line) to handle Ctrl+Left and Ctrl+Right arrows properly rather than showing garbage like this: Prelude> 1;5D1;5C At the bottom of this bug ...
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122 views

Installing leksah from source

I tried to install leksah via cabal but I got tons of different build errors so I tried to build it from git. I followed this guide http://www.leksah.org/download.html and I was able to build ...