* gnu/packages/haskell.scm (ghc-transformers): New variable.
---
gnu/packages/haskell.scm | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 34cad87..33d58f4 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -458,6 +458,30 @@ Haskell software by automating the fetching,
configuration, compilation and
installation of Haskell libraries and programs.")
(license bsd-3)))
+(define-public ghc-transformers
+ (package
+ (name "ghc-transformers")
+ (version "0.4.3.0")
+ (outputs '("out" "doc"))
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append
+ "http://hackage.haskell.org/package/transformers/transformers-";
+ version
+ ".tar.gz"))
+ (sha256
+ (base32 "179sbhvc9dghyw58hz80109pbrzgh7vh437227a51jhmx2bsgl5k"))))
+ (build-system haskell-build-system)
+ (home-page "http://hub.darcs.net/ross/transformers";)
+ (synopsis "Concrete functor and monad transformers")
+ (description
+ "A portable library of functor and monad transformers, inspired by the
+paper \"Functional Programming with Overloading and Higher-Order
+Polymorphism\", by Mark P Jones, in Advanced School of Functional Programming,
+1995 (http://web.cecs.pdx.edu/~mpj/pubs/springschool.html).")
+ (license bsd-3)))
+
(define-public ghc-mtl
(package
(name "ghc-mtl")
--
2.4.3
