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-rw-r--r--haskell-overlay.nix7
1 files changed, 7 insertions, 0 deletions
diff --git a/haskell-overlay.nix b/haskell-overlay.nix
new file mode 100644
index 000000000000..90ba35c6af6e
--- /dev/null
+++ b/haskell-overlay.nix
@@ -0,0 +1,7 @@
+{ nixpkgs ? import ./nixpkgs.nix {} }:
+let inherit (nixpkgs) pkgs;
+in self: super: rec {
+  generic-arbitrary = pkgs.haskell.lib.appendPatch
+    super.generic-arbitrary
+    [ ./generic-arbitrary-export-garbitrary.patch ];
+}