From cdad44ed318d37d53aef0311b5f3b783f84b62a3 Mon Sep 17 00:00:00 2001
From: sternenseemann <git@lukasepple.de>
Date: Mon, 13 Apr 2020 17:22:50 +0200
Subject: [PATCH] ocamlPackages.ocaml-syntax-shims: init at 1.0.0

---
 .../ocaml-syntax-shims/default.nix            | 24 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 ++
 2 files changed, 26 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/ocaml-syntax-shims/default.nix

diff --git a/pkgs/development/ocaml-modules/ocaml-syntax-shims/default.nix b/pkgs/development/ocaml-modules/ocaml-syntax-shims/default.nix
new file mode 100644
index 00000000000..706dc913e1e
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ocaml-syntax-shims/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, buildDunePackage, fetchurl }:
+
+buildDunePackage rec {
+  minimumOCamlVersion = "4.02.3";
+
+  pname = "ocaml-syntax-shims";
+  version = "1.0.0";
+
+  src = fetchurl {
+    url = "https://github.com/ocaml-ppx/${pname}/releases/download/${version}/${pname}-${version}.tbz";
+    sha256 = "1j7848khli4p7j8i2kmnvhdnhcwhy3zgdpf5ds5ic30ax69y3cl9";
+  };
+
+  useDune2 = true;
+
+  doCheck = true;
+
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/ocaml-ppx/ocaml-syntax-shims";
+    description = "Backport new syntax to older OCaml versions";
+    license = licenses.mit;
+    maintainers = with maintainers; [ sternenseemann ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index fd863e428af..b2012e6686b 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -627,6 +627,8 @@ let
 
     ocaml_sqlite3 = callPackage ../development/ocaml-modules/sqlite3 { };
 
+    ocaml-syntax-shims = callPackage ../development/ocaml-modules/ocaml-syntax-shims { };
+
     syslog = callPackage ../development/ocaml-modules/syslog { };
 
     ocaml_text = callPackage ../development/ocaml-modules/ocaml-text { };