Hi, Am Montag, den 09.06.2014, 22:16 +0000 schrieb Simon Peyton Jones:
I'm guessing that it may be the fact that the type-class defaulting rules involve Integer. You added NoImplicitPrelude, which removed a dependency on Prelude. Maybe defaulting is looking for the type Integer, but the build system doesn't see any dependency on the module that declares the Integer data type.
Try adding default ()
that didn’t help (for me).
Or alternatively (and perhaps easier) import GHC.Base (), which in turn depends on GHC.Integer.
That seems to work. Greetings, Joachim -- Joachim “nomeata” Breitner mail@joachim-breitner.de • http://www.joachim-breitner.de/ Jabber: nomeata@joachim-breitner.de • GPG-Key: 0xF0FBF51F Debian Developer: nomeata@debian.org