23/151: gnu: Add ghc-stringbuilder.

[Paul]

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

commit f690588474f7f298c188f9dfdcd21d0538db41f5
Author: Paul van der Walt <address@hidden>
Date:   Thu Oct 15 21:00:53 2015 +0200

    gnu: Add ghc-stringbuilder.
    
    * gnu/packages/haskell.scm (ghc-stringbuilder): 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 27f2497..b6b9279 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -673,6 +673,31 @@ bindings are a direct translation of the C bindings.")
 parts.")
     (license lgpl2.1)))
 
+(define-public ghc-stringbuilder
+  (package
+    (name "ghc-stringbuilder")
+    (version "0.5.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "http://hackage.haskell.org/package/stringbuilder/stringbuilder-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "1ap95xphqnrhv64c2a137wqslkdmb2jjd9ldb17gs1pw48k8hrl9"))))
+    (build-system haskell-build-system)
+    (arguments `(#:tests? #f)) ; FIXME: circular dependencies with tests
+                               ; enabled
+    (inputs
+     `(("ghc-quickcheck" ,ghc-quickcheck)))
+    (home-page "http://hackage.haskell.org/package/stringbuilder";)
+    (synopsis "Writer monad for multi-line string literals")
+    (description "This package provides a writer monad for multi-line string
+literals.")
+    (license expat)))
+
 (define-public ghc-zlib
   (package
     (name "ghc-zlib")