1 files changed, 35 insertions, 0 deletions
diff --git a/pkgs/development/ocaml-modules/janestreet/buildOcamlJane.nix b/pkgs/development/ocaml-modules/janestreet/buildOcamlJane.nix
new file mode 100644
index 000000000000..61b2038bfd29
--- /dev/null
+++ b/pkgs/development/ocaml-modules/janestreet/buildOcamlJane.nix
@@ -0,0 +1,35 @@
+{ buildOcaml, opam, js_build_tools, ocaml_oasis, fetchurl } :
+
+{ name, version ? "113.33.03", buildInputs ? [],
+  hash ? "",
+  minimumSupportedOcamlVersion ? "4.02", ...
+}@args:
+
+buildOcaml (args // {
+  inherit name version minimumSupportedOcamlVersion;
+  src = fetchurl {
+    url = "https://github.com/janestreet/${name}/archive/${version}.tar.gz";
+    sha256 = hash;
+  };
+
+  hasSharedObjects = true;
+
+  buildInputs = [ ocaml_oasis js_build_tools opam ] ++ buildInputs;
+
+  dontAddPrefix = true;
+
+  configurePhase = "./configure --prefix $out";
+
+  buildPhase = "OCAML_TOPLEVEL_PATH=`ocamlfind query findlib`/.. make";
+
+  installPhase = ''
+    opam-installer -i --prefix $prefix --libdir `ocamlfind printconf destdir` --stubsdir `ocamlfind printconf destdir`/${name} ${name}.install
+    if [ -d $out/lib/${name} ]
+      then if [ "$(ls -A $out/lib/${name})" ]
+        then mv $out/lib/${name}/* `ocamlfind printconf destdir`/${name}
+      fi
+      rmdir $out/lib/${name}
+    fi
+  '';
+
+})