jl: Patch to work with MonadFail GHC 8.6 change

NixOS · Mar 10, 2019 · 79e3dcb · 79e3dcb
1 parent 5d3fd36
commit 79e3dcb
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/pkgs/development/tools/jl/default.nix b/pkgs/development/tools/jl/default.nix
@@ -1,4 +1,4 @@
-{ mkDerivation, fetchFromGitHub
+{ mkDerivation, fetchFromGitHub, fetchpatch
 , aeson, aeson-pretty, attoparsec, base, bytestring, conduit, conduit-extra
 , containers, exceptions, mtl, optparse-simple, parsec, scientific, stdenv
 , text, unordered-containers, vector
@@ -12,6 +12,14 @@ mkDerivation rec {
     rev = "v${version}";
     sha256 = "1hlnwsl4cj0l4x8dxwda2fcnk789cwlphl9gv9cfrivl43mgkgar";
   };
+  patches = [
+    # MonadFail compatibility patch. Should be removed with the next release
+    (fetchpatch {
+      url = https://github.com/chrisdone/jl/commit/6d40308811cbc22a96b47ebe69ec308b4e9fd356.patch;
+      sha256 = "1pg92ffkg8kim5r8rz8js6fjqyjisg1266sf7p9jyxjgsskwpa4g";
+    })
+  ];
+
   isLibrary = true;
   isExecutable = true;
   libraryHaskellDepends = [