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/wodan/default.nix

@@ -0,0 +1,40 @@
+{ lib, buildDunePackage, fetchFromGitHub, lwt_ppx, ppx_cstruct, optint
+, checkseum, diet, bitv, nocrypto, logs, lru, io-page, mirage-block }:
+
+buildDunePackage rec {
+  pname = "wodan";
+  version = "unstable-2020-11-20";
+
+  useDune2 = true;
+
+  src = fetchFromGitHub {
+    owner = "mirage";
+    repo = pname;
+    rev = "cc08fe25888051c207f1009bcd2d39f8c514484f";
+    sha256 = "0186vlhnl8wcz2hmpn327n9a0bibnypmjy3w4nxq3yyglh6vj1im";
+    fetchSubmodules = true;
+  };
+
+  minimumOCamlVersion = "4.08";
+
+  propagatedBuildInputs = [
+    lwt_ppx
+    ppx_cstruct
+    optint
+    checkseum
+    diet
+    bitv
+    nocrypto
+    logs
+    lru
+    io-page
+    mirage-block
+  ];
+
+  meta = with lib; {
+    inherit (src.meta) homepage;
+    description = "A flash-friendly, safe and flexible filesystem library";
+    license = licenses.isc;
+    maintainers = with maintainers; [ ehmry ];
+  };
+}

pkgs/development/ocaml-modules/wodan/irmin.nix

@@ -0,0 +1,26 @@
+{ lib, buildDunePackage, io-page-unix, irmin-chunk, irmin-git, irmin-unix
+, mirage-block-ramdisk, mirage-block-unix, wodan }:
+
+buildDunePackage rec {
+  pname = "wodan-irmin";
+  inherit (wodan) version src useDune2;
+
+  propagatedBuildInputs = [
+    io-page-unix
+    irmin-chunk
+    irmin-git
+    irmin-unix
+    mirage-block-ramdisk
+    mirage-block-unix
+    wodan
+  ];
+
+  meta = wodan.meta // {
+    # wodan is currently incompatible with irmin 2.3.0.
+    # additionally upgrading to current master (unclear
+    # if the issue is fixed there) is not possible as it
+    # depends on a custom fork of mirage-block
+    broken = true;
+    description = "Wodan as an Irmin store";
+  };
+}

pkgs/development/ocaml-modules/wodan/unix.nix

@@ -0,0 +1,30 @@
+{ lib, buildDunePackage, base64, benchmark, csv, cmdliner, wodan, afl-persistent
+, io-page-unix, mirage-block-ramdisk, mirage-block-unix }:
+
+buildDunePackage rec {
+  outputs = [ "bin" "out" ];
+  pname = "wodan-unix";
+  inherit (wodan) version src useDune2;
+
+  propagatedBuildInputs = [
+    afl-persistent
+    base64
+    benchmark
+    cmdliner
+    csv
+    io-page-unix
+    mirage-block-ramdisk
+    mirage-block-unix
+    wodan
+  ];
+
+  postInstall = ''
+    moveToOutput bin "''${!outputBin}"
+  '';
+
+  meta = wodan.meta // {
+    description = "Wodan clients with Unix integration";
+    mainProgram = "wodanc";
+  };
+
+}