From e8aea9018bab331885b812a89f1014ed6ca1ce6e Mon Sep 17 00:00:00 2001
From: Robert Vollmert <rob@vllmrt.net>
Date: Wed, 7 Aug 2019 17:04:04 -0400
Subject: gnu: ghc-validation: Downgrade to 1.

This is the Stackage LTS version, which is compatible with
ansi-terminal 0.8.

* gnu/packages/haskell.scm (ghc-validation): Downgrade to 1.
---
 gnu/packages/haskell.scm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 9ce72fb877..94480bbe0c 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -11869,7 +11869,7 @@ (define-public ghc-stylish-haskell
 (define-public ghc-validation
   (package
     (name "ghc-validation")
-    (version "1.1")
+    (version "1")
     (source
      (origin
        (method url-fetch)
@@ -11879,8 +11879,11 @@ (define-public ghc-validation
              ".tar.gz"))
        (sha256
         (base32
-         "1acj7mh3581ks405xswxw6667z7y1y0slisg6jvp6chc191ji9l5"))))
+         "08drmdvyzg2frbb26icy1mlz52xv0l6gi3v8gb7xp0vrcci5libh"))))
     (build-system haskell-build-system)
+    (arguments
+     `(#:cabal-revision
+       ("1" "1x1g4nannz81j1h64l1m3ancc96zc57d1bjhj1wk7bwn1xxbi5h3")))
     (inputs
      `(("ghc-semigroups" ,ghc-semigroups)
        ("ghc-semigroupoids" ,ghc-semigroupoids)
-- 
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