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/cil/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchurl, perl, ocaml, findlib, ocamlbuild }:
+
+if lib.versionAtLeast ocaml.version "4.06"
+then throw "cil is not available for OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+  pname = "ocaml-cil";
+  version = "1.7.3";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/cil/cil-${version}.tar.gz";
+    sha256 = "05739da0b0msx6kmdavr3y2bwi92jbh3szc35d7d8pdisa8g5dv9";
+  };
+
+  nativeBuildInputs = [ perl ocaml findlib ocamlbuild ];
+
+  strictDeps = true;
+
+  createFindlibDestdir = true;
+
+  preConfigure = ''
+    substituteInPlace Makefile.in --replace 'MACHDEPCC=gcc' 'MACHDEPCC=$(CC)'
+    export FORCE_PERL_PREFIX=1
+  '';
+  prefixKey = "-prefix=";
+
+  meta = with lib; {
+    homepage = "http://kerneis.github.io/cil/";
+    description = "A front-end for the C programming language that facilitates program analysis and transformation";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.vbgl ];
+    platforms = ocaml.meta.platforms or [ ];
+  };
+}