gnu: Add ghc-yesod-core.

* gnu/packages/haskell-web.scm (ghc-yesod-core): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/haskell-web.scm

@@ -988,3 +988,73 @@ client-side cookie")
 encryption and Skein-MAC-512-256 authentication.  Uses Base64 encoding to
 avoid any issues with characters.")
     (license license:expat)))
+
+(define-public ghc-yesod-core
+  (package
+    (name "ghc-yesod-core")
+    (version "1.4.37")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://hackage.haskell.org/package/"
+                           "yesod-core-" version "/"
+                           "yesod-core-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0ww8hl0cx2g58zrdx3j6d5m2xwhssbajdqws1xk6rzl7rpfm1b9j"))))
+    (build-system haskell-build-system)
+    (inputs `(("ghc-wai" ,ghc-wai)
+              ("ghc-extra" ,ghc-extra)
+              ("ghc-text" ,ghc-text)
+              ("ghc-shakespeare" ,ghc-shakespeare)
+              ("ghc-blaze-builder" ,ghc-blaze-builder)
+              ("ghc-mtl" ,ghc-mtl)
+              ("ghc-clientsession" ,ghc-clientsession)
+              ("ghc-random" ,ghc-random)
+              ("ghc-cereal" ,ghc-cereal)
+              ("ghc-old-locale" ,ghc-old-locale)
+              ("ghc-unordered-containers" ,ghc-unordered-containers)
+              ("ghc-monad-control" ,ghc-monad-control)
+              ("ghc-transformers-base" ,ghc-transformers-base)
+              ("ghc-cookie" ,ghc-cookie)
+              ("ghc-http-types" ,ghc-http-types)
+              ("ghc-case-insensitive" ,ghc-case-insensitive)
+              ("ghc-parsec" ,ghc-parsec)
+              ("ghc-vector" ,ghc-vector)
+              ("ghc-aeson" ,ghc-aeson)
+              ("ghc-fast-logger" ,ghc-fast-logger)
+              ("ghc-wai-logger" ,ghc-wai-logger)
+              ("ghc-monad-logger" ,ghc-monad-logger)
+              ("ghc-conduit" ,ghc-conduit)
+              ("ghc-resourcet" ,ghc-resourcet)
+              ("ghc-lifted-base" ,ghc-lifted-base)
+              ("ghc-blaze-html" ,ghc-blaze-html)
+              ("ghc-blaze-markup" ,ghc-blaze-markup)
+              ("ghc-data-default" ,ghc-data-default)
+              ("ghc-safe" ,ghc-safe)
+              ("ghc-warp" ,ghc-warp)
+              ("ghc-unix-compat" ,ghc-unix-compat)
+              ("ghc-conduit-extra" ,ghc-conduit-extra)
+              ("ghc-exceptions" ,ghc-exceptions)
+              ("ghc-deepseq-generics" ,ghc-deepseq-generics)
+              ("ghc-mwc-random" ,ghc-mwc-random)
+              ("ghc-primitive" ,ghc-primitive)
+              ("ghc-word8" ,ghc-word8)
+              ("ghc-auto-update" ,ghc-auto-update)
+              ("ghc-semigroups" ,ghc-semigroups)
+              ("ghc-byteable" ,ghc-byteable)))
+    (native-inputs `(("ghc-hspec" ,ghc-hspec)
+                     ("ghc-path-pieces" ,ghc-path-pieces)
+                     ("ghc-hunit" ,ghc-hunit)
+                     ("ghc-hspec-expectations" ,ghc-hspec-expectations)
+                     ("ghc-quickcheck" ,ghc-quickcheck)
+                     ("ghc-network" ,ghc-network)
+                     ("ghc-async" ,ghc-async)
+                     ("ghc-streaming-commons" ,ghc-streaming-commons)
+                     ("ghc-wai-extra" ,ghc-wai-extra)))
+    (home-page "https://www.yesodweb.com")
+    (synopsis "Core package for the Yesod web framework")
+    (description "This Haskell package provides all core functionality, for
+Yesod, on which other packages can be built.  It provides dispatch, handler
+functions, widgets, etc.")
+    (license license:expat)))