Compile Fay code on cabal install, and ad-hoc recompile during development

Version on this page:
LTS Haskell 8.24:
Stackage Nightly 2017-06-26:
Latest on Hackage:

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BSD3 licensed by Silk B.V.
Maintained by

Module documentation for

There are no documented modules for this package.


Build Status

For an introduction please see the post on the Silk Engineering blog.


fay-builder is available on Hackage, to install it:

cabal install fay-builder



  • Allow Cabal < 1.24

  • Allow base 4.8.* and filepath 1.4.*

  • Allow fay 0.23.*.

  • Allow fay 0.22.*.

  • Allow fay 0.21


  • Add flag x-fay-strict-modules, specifying modules that should get a strict wrapper.
  • Add flag x-fay-library, indicating that no main function should be called.
  • Export new readField function.
  • Signature for fayConfig has changed.
  • Clarify license as BSD3. (2014-04-29)

  • Use fay 0.20

  • Initial release
Depends on 9 packages:
Used by 1 package:
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