* gnu/packages/haskell.scm (ghc-data-default-instances-base): New variable.
---
gnu/packages/haskell.scm | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index d0f74ad..9ca8976 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -288,6 +288,29 @@ installation of Haskell libraries and programs.")
(description "Defines a class for types with a default values.")
(license bsd-3)))
+(define-public ghc-data-default-instances-base
+ (package
+ (name "ghc-data-default-instances-base")
+ (version "0.0.1")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append
+ "http://hackage.haskell.org/package/";
+ "data-default-instances-base/"
+ "data-default-instances-base-" version ".tar.gz"))
+ (sha256
+ (base32 "1832nq6by91f1iw73ycvkbgn8kpra83pvf2q61hy47xffh0zy4pb"))))
+ (build-system haskell-build-system)
+ (propagated-inputs
+ `(("ghc-data-default-class" ,ghc-data-default-class)))
+ (home-page
+ "http://hackage.haskell.org/package/data-default-instances-base";)
+ (synopsis "Default instances for types in base")
+ (description "Provides Default instances for types from the base
+package.")
+ (license bsd-3)))
+
(define-public ghc-mtl
(package
(name "ghc-mtl")
--
2.4.3
