17/40: gnu: Add ghc-patience.

[Leo Famulari]

lfam pushed a commit to branch master
in repository guix.

commit d52ca22ac3cb2cbf6e95d581c207f702c9f4bc81
Author: ng0 <address@hidden>
Date:   Sun Sep 18 16:09:56 2016 +0000

    gnu: Add ghc-patience.
    
    * gnu/packages/haskell.scm (ghc-patience): New variable.
    
    Signed-off-by: Leo Famulari <address@hidden>
---
 gnu/packages/haskell.scm |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 099c3e6..aebc7a9 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -6803,4 +6803,28 @@ programs via \"ghci\", via \"runhaskell/runghc\", as 
well as compiled as
 an executable.")
     (license license:bsd-3)))
 
+(define-public ghc-patience
+  (package
+    (name "ghc-patience")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://hackage.haskell.org/package/patience/patience-";
+             version ".tar.gz"))
+       (sha256
+        (base32
+         "0qyv20gqy9pb1acy700ahv70lc6vprcwb26cc7fcpcs4scsc7irm"))))
+    (build-system haskell-build-system)
+    (home-page "http://hackage.haskell.org/package/patience";)
+    (synopsis "Patience diff and longest increasing subsequence")
+    (description
+     "This library implements the 'patience diff' algorithm, as well as the
+patience algorithm for the longest increasing subsequence problem.
+Patience diff computes the difference between two lists, for example the lines
+of two versions of a source file.  It provides a good balance between
+performance, nice output for humans, and simplicity of implementation.")
+    (license license:bsd-3)))
+
 ;;; haskell.scm ends here