312/328: gnu: Add ghc-dictionary-sharing.

[guix-commits]

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

commit 53cdc4c220d155034643948f2c79ec4f8a16481e
Author: Timothy Sample <address@hidden>
Date:   Wed Nov 13 00:28:31 2019 -0500

    gnu: Add ghc-dictionary-sharing.
    
    * gnu/packages/haskell-xyz.scm (ghc-dictionary-sharing): New variable.
---
 gnu/packages/haskell-xyz.scm | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 2e5f668..d68428a 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -2804,6 +2804,29 @@ related modules split from the statistics library.")
 and parsers with useful semantics.")
     (license license:bsd-3)))
 
+(define-public ghc-dictionary-sharing
+  (package
+    (name "ghc-dictionary-sharing")
+    (version "0.1.0.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append "https://hackage.haskell.org/package/";
+                            "dictionary-sharing/dictionary-sharing-"
+                            version ".tar.gz"))
+        (sha256
+          (base32
+            "00aspv943qdqhlk39mbk00kb1dsa5r0caj8sslrn81fnsn252fwc"))))
+    (build-system haskell-build-system)
+    (arguments
+      `(#:cabal-revision
+        ("3" "1mn7jcc7h3b8f1pn9zigqp6mc2n0qb66lms5qnrx4zswdv5w9439")))
+    (home-page "https://hackage.haskell.org/package/dictionary-sharing";)
+    (synopsis "Sharing/memoization of class members")
+    (description "This library provides tools for ensuring that class
+members are shared.")
+    (license license:bsd-3)))
+
 (define-public ghc-diff
   (package
     (name "ghc-diff")