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| -rw-r--r-- | gnu/packages/haskell-xyz.scm | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm index 5dd9a7d9a7..98b068dcc6 100644 --- a/gnu/packages/haskell-xyz.scm +++ b/gnu/packages/haskell-xyz.scm @@ -2468,6 +2468,29 @@ They stopped crashing the compiler in GHC 7.6. This package provides a vocabulary for working with them.") (license license:bsd-2))) +(define-public ghc-constraints-extras + (package + (name "ghc-constraints-extras") + (version "0.4.0.0") + (source (origin + (method url-fetch) + (uri (hackage-uri "constraints-extras" version)) + (sha256 + (base32 + "1irf4kd7a5h1glczbc73c3590m58azn4s68nfrjfg1h96i7mjfgn")))) + (build-system haskell-build-system) + (properties '((upstream-name . "constraints-extras"))) + (inputs (list ghc-constraints ghc-aeson)) + (arguments + `(#:cabal-revision ("1" + "1fdabah3ilq9yf94916ml3c3rxgcgab1jhzl4mk1zgzsw78j53qf"))) + (home-page "https://github.com/obsidiansystems/constraints-extras") + (synopsis "Utility package for constraints") + (description + "Convenience functions and TH for working with constraints. See +@file{README.md} for example usage.") + (license license:bsd-3))) + (define-public ghc-contravariant (package (name "ghc-contravariant") |