uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/ocaml-modules/lwt/camlp4.nix

@@ -0,0 +1,29 @@
+{ lib, fetchFromGitHub, buildDunePackage, camlp4 }:
+
+buildDunePackage rec {
+  pname = "lwt_camlp4";
+  version = "unstable-2018-03-25";
+
+  src = fetchFromGitHub {
+    owner = "ocsigen";
+    repo = pname;
+    rev = "45f25a081e01071ab566924b48ba5f7553bb33ac";
+    sha256 = "1lv8z6ljfy47yvxmwf5jrvc5d3dc90r1n291x53j161sf22ddrk9";
+  };
+
+  useDune2 = false;
+
+  minimalOCamlVersion = "4.02";
+
+  propagatedBuildInputs = [ camlp4 ];
+
+  preBuild = "rm META.lwt_camlp4";
+
+  meta = {
+    description = "Camlp4 syntax extension for Lwt (deprecated)";
+    license = lib.licenses.lgpl21;
+    inherit (src.meta) homepage;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+}
+

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

@@ -0,0 +1,34 @@
+{ lib, fetchFromGitHub, pkg-config, ncurses, libev, buildDunePackage, ocaml
+, cppo, dune-configurator, ocplib-endian, result
+, mmap, seq
+, ocaml-syntax-shims
+}:
+
+let inherit (lib) optional versionOlder; in
+
+buildDunePackage rec {
+  pname = "lwt";
+  version = "5.5.0";
+
+  src = fetchFromGitHub {
+    owner = "ocsigen";
+    repo = "lwt";
+    rev = version;
+    sha256 = "sha256:1jbjz2rsz3j56k8vh5qlmm87hhkr250bs2m3dvpy9vsri8rkzj9z";
+  };
+
+  strictDeps = true;
+
+  nativeBuildInputs = [ pkg-config cppo ]
+    ++ optional (versionOlder ocaml.version "4.08") ocaml-syntax-shims;
+  buildInputs = [ dune-configurator ]
+    ++ optional (versionOlder ocaml.version "4.07") ncurses;
+  propagatedBuildInputs = [ libev mmap ocplib-endian seq result ];
+
+  meta = {
+    homepage = "https://ocsigen.org/lwt/";
+    description = "A cooperative threads library for OCaml";
+    maintainers = [ lib.maintainers.vbgl ];
+    license = lib.licenses.mit;
+  };
+}

pkgs/development/ocaml-modules/lwt/ppx.nix

@@ -0,0 +1,31 @@
+{ fetchFromGitHub, buildDunePackage, lwt, ppxlib }:
+
+buildDunePackage {
+  pname = "lwt_ppx";
+  version = "2.0.2";
+
+  useDune2 = true;
+
+  minimumOCamlVersion = "4.04";
+
+  # `lwt_ppx` has a different release cycle than Lwt, but it's included in
+  # one of its release bundles.
+  # Because there could exist an Lwt release _without_ a `lwt_ppx` release,
+  # this `src` field doesn't inherit from the Lwt derivation.
+  #
+  # This is particularly useful for overriding Lwt without breaking `lwt_ppx`,
+  # as new Lwt releases may contain broken `lwt_ppx` code.
+  src = fetchFromGitHub {
+    owner = "ocsigen";
+    repo = "lwt";
+    rev = "5.4.0";
+    sha256 = "sha256-rRivROVbQbXkHWen1n8+9AwrRJaOK0Fhyilw29T7was=";
+  };
+
+  propagatedBuildInputs = [ lwt ppxlib ];
+
+  meta = {
+    description = "Ppx syntax extension for Lwt";
+    inherit (lwt.meta) license homepage maintainers;
+  };
+}