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/libraries/qmlbox2d/default.nix

@@ -0,0 +1,32 @@
+{lib, stdenv, qtdeclarative, fetchFromGitHub, qmake }:
+stdenv.mkDerivation {
+  pname = "qml-box2d";
+  version = "unstable-2018-04-06";
+  src = fetchFromGitHub {
+    owner = "qml-box2d";
+    repo = "qml-box2d";
+    sha256 = "0gb8limy6ck23z3k0k2j7c4c4s95p40f6lbzk4szq7fjnnw22kb7";
+    rev = "b7212d5640701f93f0cd88fbd3a32c619030ae62";
+  };
+
+  dontWrapQtApps = true;
+  nativeBuildInputs = [ qmake ];
+
+  buildInputs = [ qtdeclarative ];
+
+  patchPhase = ''
+    substituteInPlace box2d.pro \
+      --replace '$$[QT_INSTALL_QML]' "/$qtQmlPrefix/"
+    qmakeFlags="$qmakeFlags PREFIXSHORTCUT=$out"
+    '';
+
+  installFlags = [ "INSTALL_ROOT=$(out)" ];
+
+  meta = with lib; {
+    description = "A QML plugin for Box2D engine";
+    homepage = "https://github.com/qml-box2d/qml-box2d";
+    maintainers = [ maintainers.guibou ];
+    platforms = platforms.linux;
+    license = licenses.zlib;
+  };
+}