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Bootstrap ghc-head with GHC 7.6.3 to see if that solves our weird compiler errors:

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compiler/simplCore/CoreMonad.lhs:835:10:
      Non type-variable argument in the constraint: MonadPlus IO
      (Use -XFlexibleContexts to permit this)
      In the context: (MonadPlus IO)
      While checking an instance declaration
      In the instance declaration for `A.Alternative CoreM'

  compiler/simplCore/CoreMonad.lhs:841:10:
      Non type-variable argument in the constraint: MonadPlus IO
      (Use -XFlexibleContexts to permit this)
      In the context: (MonadPlus IO)
      While checking an instance declaration
      In the instance declaration for `MonadPlus CoreM'
This commit is contained in:
Peter Simons 2014-05-03 11:18:17 +02:00
parent 13b246b221
commit eca445a408
1 changed files with 1 additions and 1 deletions
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2
pkgs/top-level/haskell-defaults.nix
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@ -413,7 +413,7 @@
# Reasonably current HEAD snapshot. Should *always* be lowPrio.
packages_ghcHEAD =
packages { ghcPath = ../development/compilers/ghc/head.nix;
ghcBinary = ghc742Binary;
ghcBinary = pkgs.haskellPackages.ghcPlain;
prefFun = ghcHEADPrefs;
extraArgs = {
happy = pkgs.haskellPackages.happy_1_19_2;