push sheeet

pkgs/development/ocaml-modules/trace/tef.nix

@@ -0,0 +1,31 @@
+{
+  buildDunePackage,
+  trace,
+  mtime,
+}:
+
+buildDunePackage {
+  pname = "trace-tef";
+  inherit (trace) src version;
+
+  # This removes the dependency on the “atomic” package
+  # (not available in nixpkgs)
+  # Said package for OCaml ≥ 4.12 is empty
+  postPatch = ''
+    substituteInPlace src/tef/dune --replace 'atomic ' ""
+  '';
+
+  minimalOCamlVersion = "4.12";
+
+  propagatedBuildInputs = [
+    mtime
+    trace
+  ];
+
+  doCheck = true;
+
+  meta = trace.meta // {
+    description = "Simple backend for trace, emitting Catapult JSON into a file";
+  };
+
+}