ocamlPackage.ppx_import: init at 1.1

pkgs/development/ocaml-modules/ppx_import/default.nix

@@ -0,0 +1,32 @@
+{stdenv, fetchFromGitHub, buildOcaml, ocaml, opam,
+ cppo, ppx_tools, ounit, ppx_deriving}:
+
+buildOcaml rec {
+  name = "ppx_import";
+
+  version = "1.1";
+
+  minimumSupportedOcamlVersion = "4.02";
+
+  src = fetchFromGitHub {
+    owner = "whitequark";
+    repo = "ppx_import";
+    rev = "v${version}";
+    sha256 = "1hfvbc81dg58q7kkpn808b3j0xazrqfrr4v71sd1yvmnk71wak6k";
+  };
+
+  buildInputs = [ cppo ounit ppx_deriving opam ];
+
+  doCheck = true;
+  checkTarget = "test";
+
+  installPhase = ''
+    opam-installer --script --prefix=$out ppx_import.install | sh
+    ln -s $out/lib/ppx_import $out/lib/ocaml/${ocaml.version}/site-lib
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A syntax extension that allows to pull in types or signatures from other compiled interface files";
+    license = licenses.mit;
+  };
+}

pkgs/top-level/ocaml-packages.nix

@@ -416,6 +416,8 @@ let
       then callPackage ../development/ocaml-modules/ppx_deriving {}
       else null;
 
+    ppx_import = callPackage ../development/ocaml-modules/ppx_import {};
+
     ppx_tools =
       if lib.versionAtLeast ocaml.version "4.02"
       then callPackage ../development/ocaml-modules/ppx_tools {}