On 09/18/2013 12:34 AM, Brandon Allbery wrote:

On Tue, Sep 17, 2013 at 6:18 PM, Nathan Hüsken mailto:nathan.huesken@posteo.de> wrote:

import ModuleName

and have a file ModuleName.lhs (in literal haskell), ghc complains that it cannot find the module.

(1) It's Literate Haskell, cf. Knuth's literate programming. (2) It is not imported as source; it is looking for a compiled module (specifically the .hi file).

Mmh, ok. The file is part of a cabal project. So I have: Main.hs, Module.lhs, and main cannot find the module Module. How do I instruct cabal to produce the needed hi file?

-- brandon s allbery kf8nh sine nomine associates allbery.b@gmail.com mailto:allbery.b@gmail.com ballbery@sinenomine.net mailto:ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net

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Nathan Hüsken wrote:

Mmh, ok. The file is part of a cabal project. So I have: Main.hs, Module.lhs, and main cannot find the module Module. How do I instruct cabal to produce the needed hi file?

The cabal file will have something like: executable your-program main-is: Main.hs hs-source-dirs: src default-language: Haskell98 and some below that you need to add to that: other-modules: ModuleName If that't not exactly right the cabal documentation [0] should be able to help you. Erik [0] http://www.haskell.org/cabal/users-guide/ -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/