Welcome to the GHC Trac

GHC (the Glasgow Haskell Compiler) is a state-of-the-art, open source, compiler and interactive environment for the functional language  Haskell.

For further information or to download GHC for your platform, please visit  The GHC home page.

Please help us improve the information here. You can easily do this by editing the wiki directly. Just log in as user guest with password guest. The "Help/Guide" link at the top of every page gives a good description of the markup language etc.

For a complete list of local wiki pages, see TitleIndex.

The bug tracker

• Create a new bug report
• Create a new task
• Create a new feature request

• View open bugs
• View tasks
• View feature requests

• View my tickets

• View tickets scheduled for 6.4.2
• View tickets scheduled for 6.6

The GHC sources

We are in a transition between revision control systems. The source tree is currently held in a CVS repository:

•  Browse the CVS repository online
• Accessing the CVS repository

We are currently maintaining a mirror of the CVS repository in a  darcs repository, with the aim of switching to using darcs for development.

•  Browse the darcs repository (HEAD)
•  Browse the darcs repository (6.4 branch)

• Getting GHC with darcs

Developers

Get started with hacking on GHC:

• Pick an easy bug or task to work on
• Grab the latest sources (see above)
•  Set up your build tree
• Useful information about GHC's architecture is in the  commentary
• Hack away... ask questions on  the cvs-ghc mailing list

Random stuff about GHC

• The GHC FAQ
• Notes about using GHC as a library
• Notes about concurrent programming in GHC
• The  Template Haskell Hawiki page