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/qtfeedback/default.nix

@@ -0,0 +1,48 @@
+{ lib
+, mkDerivation
+, fetchFromGitHub
+, perl
+, qmake
+, qtbase
+, qtdeclarative
+}:
+
+mkDerivation rec {
+  pname = "qtfeedback";
+  version = "unstable-2018-09-03";
+
+  outputs = [ "out" "dev" ];
+
+  src = fetchFromGitHub {
+    owner = "qt";
+    repo = "qtfeedback";
+    rev = "a14bd0bb1373cde86e09e3619fb9dc70f34c71f2";
+    sha256 = "0kiiffvriagql1cark6g1qxy7l9c3q3s13cx3s2plbz19nlnikj7";
+  };
+
+  nativeBuildInputs = [
+    perl
+    qmake
+  ];
+
+  buildInputs = [
+    qtdeclarative
+  ];
+
+  qmakeFlags = [ "CONFIG+=git_build" ];
+
+  doCheck = true;
+
+  postFixup = ''
+    # Drop QMAKE_PRL_BUILD_DIR because it references the build dir
+    find "$out/lib" -type f -name '*.prl' \
+      -exec sed -i -e '/^QMAKE_PRL_BUILD_DIR/d' {} \;
+  '';
+
+  meta = with lib; {
+    description = "Qt Tactile Feedback";
+    homepage = "https://github.com/qt/qtfeedback";
+    license = with licenses; [ lgpl3Only /* or */ gpl2Plus ];
+    maintainers = with maintainers; [ dotlambda OPNA2608 ];
+  };
+}