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/misc/screensavers/xautolock/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub, xlibsWrapper
+, imake, gccmakedep, libXScrnSaver, xorgproto
+}:
+
+stdenv.mkDerivation rec {
+  pname = "xautolock";
+  version = "2.2-7-ga23dd5c";
+
+  # This repository contains xautolock-2.2 plus various useful patches that
+  # were collected from Debian, etc.
+  src = fetchFromGitHub {
+    owner = "peti";
+    repo = "xautolock";
+    rev = "v${version}";
+    sha256 = "10j61rl0sx9sh84rjyfyddl73xb5i2cpb17fyrli8kwj39nw0v2g";
+  };
+
+  nativeBuildInputs = [ imake gccmakedep ];
+  buildInputs = [ xlibsWrapper libXScrnSaver xorgproto ];
+
+  makeFlags = [
+    "BINDIR=$(out)/bin"
+    "MANPATH=$(out)/share/man"
+  ];
+
+  installTargets = [ "install" "install.man" ];
+
+  meta = with lib; {
+    description = "Launch a given program when your X session has been idle for a given time";
+    homepage = "http://www.ibiblio.org/pub/linux/X11/screensavers";
+    maintainers = with maintainers; [ peti ];
+    platforms = platforms.linux;
+    license = licenses.gpl2;
+  };
+}