GNU bug report logs - #28884
[PATCH 00/38] Add ghc-aws and its dependencies.

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From: rsiddharth <s <at> ricketyspace.net>
To: 28884 <at> debbugs.gnu.org
Cc: s <at> ricketyspace.net
Subject: [bug#28884] [PATCH 18/38] gnu: Add ghc-contravariant-extras.
Date: Wed, 18 Oct 2017 03:07:38 +0000

* gnu/packages/haskell.scm (ghc-contravariant-extras): 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 23e920351..23996ad3d 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -9569,4 +9569,27 @@ generating functions similar to those in @code{Data.List} for tuples of
 statically known size.")
     (license license:bsd-3)))
 
+(define-public ghc-contravariant-extras
+  (package
+    (name "ghc-contravariant-extras")
+    (version "0.3.3.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://hackage.haskell.org/package/"
+                           "contravariant-extras-" version "/"
+                           "contravariant-extras-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1mbrgjybdx8fjdck4ldwi8955w4qnmm0ql56zix7dyn0s7s9spgk"))))
+    (build-system haskell-build-system)
+    (inputs `(("ghc-tuple-th" ,ghc-tuple-th)
+              ("ghc-contravariant" ,ghc-contravariant)
+              ("ghc-base-prelude",ghc-base-prelude)))
+    (home-page "https://github.com/nikita-volkov/contravariant-extras")
+    (synopsis "Extras for the @code{ghc-contravariant} Haskell package")
+    (description "This Haskell package provides extras for the
+@code{ghc-contravariant} package.")
+    (license license:expat)))
+
 ;;; haskell.scm ends here
-- 
2.15.0.rc0

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