75/151: gnu: Add ghc-digest.

[Paul]

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

commit 765d62f28115ab366c8876f695f5d25f562ecaa6
Author: Paul van der Walt <address@hidden>
Date:   Thu Oct 15 14:38:27 2015 +0200

    gnu: Add ghc-digest.
    
    * gnu/packages/haskell.scm (ghc-digest): New variable.
---
 gnu/packages/haskell.scm |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index e987577..d9d71aa 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -2518,6 +2518,33 @@ given term should not exist.")
 in the @code{IO} monad, like @code{IORef}s or parts of the OpenGL state.")
     (license bsd-3)))
 
+(define-public ghc-digest
+  (package
+    (name "ghc-digest")
+    (version "0.0.1.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "http://hackage.haskell.org/package/digest/digest-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "04gy2zp8yzvv7j9bdfvmfzcz3sqyqa6rwslqcn4vyair2vmif5v4"))))
+    (build-system haskell-build-system)
+    (inputs
+     `(("zlib" ,zlib)))
+    (home-page
+     "http://hackage.haskell.org/package/digest";)
+    (synopsis
+     "Various cryptographic hashes for bytestrings")
+    (description
+     "This package provides efficient cryptographic hash implementations for
+strict and lazy bytestrings.  For now, CRC32 and Adler32 are supported; they
+are implemented as FFI bindings to efficient code from zlib.")
+    (license bsd-3)))
+
 (define-public ghc-bifunctors
   (package
     (name "ghc-bifunctors")