18/20: squash! gnu: ghc-extra: Update to 1.6.18.

[guix-commits]

samplet pushed a commit to branch wip-haskell-updates
in repository guix.

commit 2112d02d7b1abecf06fae1d3e48255e4987ce76d
Author: Timothy Sample <address@hidden>
Date:   Fri Nov 1 22:03:20 2019 -0400

    squash! gnu: ghc-extra: Update to 1.6.18.
---
 gnu/packages/haskell-xyz.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 61825e7..4c872ff 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -3329,6 +3329,7 @@ versions of GHC (i.e., < 6.10).")
     (build-system haskell-build-system)
     (inputs
      `(("ghc-clock" ,ghc-clock)
+       ("ghc-semigroups" ,ghc-semigroups)
        ("ghc-quickcheck" ,ghc-quickcheck)))
     (home-page "https://github.com/ndmitchell/extra";)
     (synopsis "Extra Haskell functions")