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/window-managers/windowlab/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchurl, pkg-config
+, libX11, libXext, libXft }:
+
+let version = "1.40"; in
+stdenv.mkDerivation {
+  pname = "windowlab";
+  inherit version;
+
+  src = fetchurl {
+    url = "http://nickgravgaard.com/windowlab/windowlab-${version}.tar";
+    sha256 = "1fx4jwq4s98p2wpvawsiww7d6568bpjgcjpks61dzfj8p2j32s4d";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ libX11 libXext libXft ];
+
+  postPatch =
+    ''
+      mv Makefile Makefile.orig
+      echo \
+         "
+          DEFINES += -DXFT
+          EXTRA_INC += $(pkg-config --cflags xft)
+          EXTRA_LIBS += $(pkg-config --libs xft)
+         " > Makefile
+      sed "s|/usr/local|$out|g" Makefile.orig >> Makefile
+    '';
+
+  meta = with lib;
+    { description = "Small and simple stacking window manager";
+      homepage    = "http://nickgravgaard.com/windowlab/";
+      license     = licenses.gpl2;
+      maintainers = with maintainers; [ ehmry ];
+      platforms   = platforms.linux;
+    };
+}