1 files changed, 34 insertions, 0 deletions
diff --git a/third_party/haskell_overlay/default.nix b/third_party/haskell_overlay/default.nix
new file mode 100644
index 000000000000..76e297173dce
--- /dev/null
+++ b/third_party/haskell_overlay/default.nix
@@ -0,0 +1,34 @@
+{ pkgs ? import ./nixpkgs.nix {} }:
+
+self: super: with pkgs.haskell.lib; rec {
+  generic-arbitrary = appendPatch
+    super.generic-arbitrary
+    [ ./patches/generic-arbitrary-export-garbitrary.patch ];
+
+  hgeometry =
+    appendPatch
+      (self.callHackageDirect {
+        pkg = "hgeometry";
+        ver = "0.9.0.0";
+        sha256 = "02hyvbqm57lr47w90vdgl71cfbd6lvwpqdid9fcnmxkdjbq4kv6b";
+      } {}) [ ./patches/hgeometry-fix-haddock.patch ];
+
+  hgeometry-combinatorial =
+    self.callHackageDirect {
+      pkg = "hgeometry-combinatorial";
+      ver = "0.9.0.0";
+      sha256 = "12k41wd9fd1y3jd5djwcpwg2s1cva87wh14i0m1yn49zax9wl740";
+    } {};
+
+  vinyl = overrideSrc (markUnbroken super.vinyl)
+    rec {
+      src = pkgs.fetchzip {
+        url = "mirror://hackage/vinyl-${version}/vinyl-${version}.tar.gz";
+        sha256 = "190ffrmm76fh8fi9afkcda2vldf89y7dxj10434h28mbpq55kgsx";
+      };
+      version = "0.12.0";
+    };
+
+  comonad-extras = appendPatch (markUnbroken super.comonad-extras)
+    [ ./patches/update-comonad-extras.patch ];
+}