CS 3040: Installing Glasgow Haskell Compiler

Windows Users

Directions for Mac and Linux users are given at the bottom.

1. Install Chocolatey:
   1. Visit https://chocolatey.org/install (or go to https://chocolatey.org and click on Get Started)
   2. You can skip the Chocolatey Newsletter prompt.
   3. Follow the steps for the Individual installation using Windows PowerShell. In particular:
      1. Click on the Windows Start icon, type "PowerShell", and select Run as Administrator
      2. Type Set-ExecutionPolicy AllSigned and hit return.
      3. Click on the clipboard icon to copy the command and paste it into the PowerShell prompt.
   4. Close the PowerShell Prompt.
   5. Open a new elevated prompt. You can re-open PowerShell (as administrator) or right click on the Command Prompt icon in the Start menu, select More, then select Run as administrator. Type

                  choco  
      

      If you get a command not found error, ask for help.
2. To install Haskell:
   1. Open a command prompt with administrator access.
   2. Type

              choco install -y haskell-dev
              refreshenv
      

   3. Confirm it's running:

              ghci
      

If it is not working correctly, you may wish to reboot your laptop. This would ensure the PATH variable is correct in all environments.

You can type choco install -y xyz or cinst -y xyz to install other packages. If you enter

       choco feature enable -n=allowGlobalConfirmation 

then you don't have to give the -y option or affirm installation. Packages to consider:

• gow - Gnu on Windows; provides most Gnu Linux commands like grep, egrep, ls, cat, etc.
• g++ - this is my preferred way to install G++ (for C++) on Windows
• vim - Dr. Taylor's favorite editor
• virtualbox
• notepadplusplus
• unzip - allows typing unzip at the command prompt to unpack Zip files

A win of using Chocolatey is you can update all packages with cup all.

Mac Users

The simplest way is

        brew install ghc

However, a distributed installer is also available; see the distribution_packages page

Ubuntu/Linux Users

apt-get should likely work. There are also distribution packages here.