What license do the Haskell libraries use?
The details are not precisely clear, but to all intents and purposes libraries/base is under a BSD-style license. That is the intention, anyway. libraries/network, libraries/haskell-src and libraries/haskell98 are also BSD-licensed. It is expected that we will have a package for GPL or LGPL licensed libraries at some point in the future. I'd argue strongly in favour of putting all code generated by the i18n project under nothing more restrictive than a BSD license, and preferably the same license as the Haskell report and FFI addendum. (I hope the eventual outcome of this discussion will be a Haskell 98 i18n addendum). Here's the Haskell report license: The authors intend this Report to belong to the entire Haskell community, and so we grant permission to copy and distribute it for any purpose, provided that it is reproduced in its entirety, including this Notice. Modified versions of this Report may also be copied and distributed for any purpose, provided that the modified version is clearly presented as such, and that it does not claim to be a definition of the Haskell 98 Language. Cheers, Simon