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-rw-r--r--gnu/packages/haskell.scm30
1 files changed, 30 insertions, 0 deletions
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 939d2e79c3..dc53fb989a 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -1267,6 +1267,36 @@ similar to @code{binary}, that introduces an @code{isolate} primitive for
parser isolation, and labeled blocks for better error messages.")
(license bsd-3)))
+(define-public ghc-comonad
+ (package
+ (name "ghc-comonad")
+ (version "4.2.7.2")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append
+ "http://hackage.haskell.org/package/comonad/comonad-"
+ version
+ ".tar.gz"))
+ (sha256
+ (base32
+ "0arvbaxgkawzdp38hh53akkahjg2aa3kj2b4ns0ni8a5ylg2cqmp"))))
+ (build-system haskell-build-system)
+ (propagated-inputs
+ `(("ghc-distributive" ,ghc-distributive)
+ ("ghc-transformers-compat" ,ghc-transformers-compat)
+ ("ghc-contravariant" ,ghc-contravariant)))
+ (arguments `(#:tests? #f)) ; FIXME: Test fails with "cannot satisfy
+ ; -package contravariant-1.3.3"
+ (inputs
+ `(("ghc-semigroups" ,ghc-semigroups)
+ ("ghc-tagged" ,ghc-tagged)
+ ("ghc-contravariant" ,ghc-contravariant)))
+ (home-page "http://github.com/ekmett/comonad/")
+ (synopsis "Comonads for Haskell")
+ (description "This library provides @code{Comonad}s for Haskell.")
+ (license bsd-3)))
+
(define-public ghc-appar
(package
(name "ghc-appar")