49/151: gnu: Add ghc-base-orphans.

[Paul]

toothbrush pushed a commit to branch wip-haskell-platform-7.10.2-a
in repository guix.

commit b17017424d0f8222ae99a26f3b7567e89fde3592
Author: Paul van der Walt <address@hidden>
Date:   Thu Oct 15 21:15:11 2015 +0200

    gnu: Add ghc-base-orphans.
    
    * gnu/packages/haskell.scm (ghc-base-orphans): New variable.
---
 gnu/packages/haskell.scm |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index abf304f..03ae341 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -1940,4 +1940,29 @@ simple general-purpose data structure\".")
      "Utilities and combinators for parsing command line options")
     (license bsd-3)))
 
+(define-public ghc-base-orphans
+  (package
+    (name "ghc-base-orphans")
+    (version "0.4.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "http://hackage.haskell.org/package/base-orphans/base-orphans-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "0hhgpwjvx7jhvlhsygmmf0q5hv2ymijzz4bjilicw99bmv13qcpl"))))
+    (build-system haskell-build-system)
+    (inputs
+     `(("ghc-quickcheck" ,ghc-quickcheck)
+       ("ghc-hspec" ,ghc-hspec)))
+    (home-page "https://hackage.haskell.org/package/base-orphans";)
+    (synopsis "Orphan instances for backwards compatibility")
+    (description
+     "Defines orphan instances that mimic instances available in later
+versions of base to a wider (older) range of compilers.")
+    (license bsd-3)))
+
 ;;; haskell.scm ends here