gnu: Add ghc-repline.

* gnu/packages/haskell-xyz.scm (ghc-repline): New variable.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu/packages/haskell-xyz.scm

@@ -10242,6 +10242,28 @@ inspired by libtre.")
      "This provides an extra text interface for regex-tdfa.")
     (license license:bsd-3)))
 
+(define-public ghc-repline
+  (package
+    (name "ghc-repline")
+    (version "0.2.0.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "mirror://hackage/package/repline/repline-"
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "1ph21kbbanlcs8n5lwk16g9vqkb98mkbz5mzwrp8j2rls2921izc"))))
+    (build-system haskell-build-system)
+    (home-page "https://github.com/sdiehl/repline")
+    (synopsis "Haskeline wrapper for GHCi-like REPL interfaces")
+    (description
+     "Haskeline wrapper for GHCi-like REPL interfaces.  Composable with
+normal mtl transformers.")
+    (license license:expat)))
+
 (define-public ghc-rerebase
   (package
     (name "ghc-rerebase")