[PATCH 078/105] gnu: Add ghc-extra.

[Paul van der Walt]

* gnu/packages/haskell.scm (ghc-extra): New variable.
---
 gnu/packages/haskell.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index f5f1dda..8e7da5c 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -1391,6 +1391,32 @@ Finally, Text.Parse is a proposed replacement for the 
standard Read class, for
 better deserialisation of Haskell values from Strings.")
     (license lgpl2.1)))
 
+(define-public ghc-extra
+  (package
+    (name "ghc-extra")
+    (version "1.4.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "http://hackage.haskell.org/package/extra/extra-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "1h9hxkrqrqscx420yz1lmivbrhi6jc3a5ap61vkxd2mhdgark9hf"))))
+    (build-system haskell-build-system)
+    (inputs `(("ghc-quickcheck" ,ghc-quickcheck)))
+    (home-page
+     "https://github.com/ndmitchell/extra#readme";)
+    (synopsis "Extra Haskell functions")
+    (description
+     "A library of extra functions for the standard Haskell libraries.  Most
+functions are simple additions, filling out missing functionality.  A few
+functions are available in later versions of GHC, but this package makes them
+available back to GHC 7.2.")
+    (license bsd-3)))
+
 (define-public ghc-appar
   (package
     (name "ghc-appar")
-- 
2.6.1