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/applications/misc/orpie/default.nix

@@ -0,0 +1,30 @@
+{ lib, fetchFromGitHub, ocamlPackages }:
+
+ocamlPackages.buildDunePackage rec {
+  pname = "orpie";
+  version = "1.6.1";
+
+  useDune2 = true;
+
+  src = fetchFromGitHub {
+    owner = "pelzlpj";
+    repo = pname;
+    rev = "release-${version}";
+    sha256 = "1rx2nl6cdv609pfymnbq53pi3ql5fr4kda8x10ycd9xq2gc4f21g";
+  };
+
+  patches = [ ./prefix.patch ];
+
+  preConfigure = ''
+    substituteInPlace src/orpie/install.ml.in --replace '@prefix@' $out
+  '';
+
+  buildInputs = with ocamlPackages; [ curses camlp5 num gsl ];
+
+  meta = {
+    inherit (src.meta) homepage;
+    description = "A Curses-based RPN calculator";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ obadz ];
+  };
+}

pkgs/applications/misc/orpie/prefix.patch

@@ -0,0 +1,11 @@
+--- a/src/orpie/dune	2021-10-05 06:09:09.040120000 +0200
++++ b/src/orpie/dune	2021-10-05 06:10:06.568418512 +0200
+@@ -18,7 +18,7 @@
+ ; Support $PREFIX for overriding installation location
+ (rule
+   (targets install.ml)
+-  (action (run %{project_root}/scripts/compute_prefix subst %{deps} %{targets}))
++  (action (copy# %{deps} %{targets}))
+   (deps (file install.ml.in)))
+ 
+