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gnu: Add ghc-ref-tf.
* gnu/packages/haskell-xyz.scm (ghc-ref-tf): New variable. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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@ -16618,6 +16618,26 @@ (define-public ghc-patch
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provided from returning something else.")
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(license license:bsd-3)))
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(define-public ghc-ref-tf
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(package
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(name "ghc-ref-tf")
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(version "0.5.0.1")
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(source (origin
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(method url-fetch)
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(uri (hackage-uri "ref-tf" version))
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(sha256
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(base32
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"0isilgcbw12zyh8s2liaj5r9r5m3yg1xskyhag6f36qi60y29hx5"))))
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(build-system haskell-build-system)
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(properties '((upstream-name . "ref-tf")))
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(home-page "http://hackage.haskell.org/package/ref-tf")
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(synopsis "Type class for monads with references using type families")
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(description
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"This package contains a @code{MonadRef} type class that abstracts over
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the details of manipulating references, allowing one to write code that can
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operate in either the @code{ST} monad or the @code{IO} monad.")
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(license license:bsd-3)))
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;;;
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;;; Avoid adding new packages to the end of this file. To reduce the chances
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;;; of a merge conflict, place them above by existing packages with similar
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