122/257: gnu: ghc-cryptohash-md5: Update Cabal file to r2.

[Ricardo Wurmus]

rekado pushed a commit to branch wip-haskell
in repository guix.

commit 66dd6df89ebf53d63b8a3ad7bcbbc1e1fe1b368e
Author: Timothy Sample <address@hidden>
Date:   Fri Aug 31 15:06:10 2018 -0400

    gnu: ghc-cryptohash-md5: Update Cabal file to r2.
    
    * gnu/packages/haskell-crypto.scm (ghc-cryptohash-md5): Update Cabal
    file to r2.
---
 gnu/packages/haskell-crypto.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/haskell-crypto.scm b/gnu/packages/haskell-crypto.scm
index f27d7dc..b1db19b 100644
--- a/gnu/packages/haskell-crypto.scm
+++ b/gnu/packages/haskell-crypto.scm
@@ -210,7 +210,9 @@ that hides the C implementation.")
          "1y8q7s2bn4gdknw1wjikdnar2b5pgz3nv3220lxrlgpsf23x82vi"))))
     (build-system haskell-build-system)
     (arguments
-     `(#:tests? #f)) ; tests require old version of ghc-hunit (0.9)
+     `(#:cabal-revision
+       ("2" "0vyb9cfvpfxpslxvvhd48gw37i9g8ry5x63xwxd9q7xfiqhs7p3a")
+       #:tests? #f)) ; tests require old version of ghc-hunit (0.9)
     (native-inputs `(("ghc-base16-bytestring" ,ghc-base16-bytestring)
                      ("ghc-puremd5" ,ghc-puremd5)
                      ("ghc-tasty" ,ghc-tasty)