1 files changed, 19 insertions, 4 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/irmin/ppx.nix b/nixpkgs/pkgs/development/ocaml-modules/irmin/ppx.nix
index c28532b49a9..35aa659fbc8 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/irmin/ppx.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/irmin/ppx.nix
@@ -1,14 +1,29 @@
-{ lib, buildDunePackage, ppxlib, ocaml-syntax-shims, irmin }:
+{ lib, fetchurl, buildDunePackage, ppxlib, ocaml-syntax-shims }:
 
-buildDunePackage {
+buildDunePackage rec {
   pname = "ppx_irmin";
+  version = "2.2.0";
 
-  inherit (irmin) version src minimumOCamlVersion;
+  src = fetchurl {
+    url = "https://github.com/mirage/irmin/releases/download/${version}/irmin-${version}.tbz";
+    sha256 = "0gzw918b661qkvd140hilww9jsc49rxsxz1k4iihyvikjn202km4";
+  };
+
+  minimumOCamlVersion = "4.06";
+
+  useDune2 = true;
 
   buildInputs = [ ocaml-syntax-shims ];
   propagatedBuildInputs = [ ppxlib ];
 
-  meta = irmin.meta // {
+  # tests depend on irmin, would create mutual dependency
+  # opt to test irmin instead of ppx_irmin
+  doCheck = false;
+
+  meta = {
+    homepage = "https://irmin.org/";
     description = "PPX deriver for Irmin generics";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
   };
 }