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/evilwm/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, stdenv
+, fetchurl
+, libX11
+, libXext
+, libXrandr
+, libXrender
+, xorgproto
+, patches ? [ ]
+}:
+
+stdenv.mkDerivation rec {
+  pname = "evilwm";
+  version = "1.1.1";
+
+  src = fetchurl {
+    url = "http://www.6809.org.uk/evilwm/evilwm-${version}.tar.gz";
+    sha256 = "79589c296a5915ee0bae1d231e8912601fc794d9f0a9cacb6b648ff9a5f2602a";
+  };
+
+  buildInputs = [
+    libX11
+    libXext
+    libXrandr
+    libXrender
+    xorgproto
+  ];
+
+  postPatch = ''
+    substituteInPlace ./Makefile \
+      --replace /usr $out \
+      --replace "CC = gcc" "#CC = gcc"
+  '';
+
+  # Allow users set their own list of patches
+  inherit patches;
+
+  meta = with lib; {
+    homepage = "http://www.6809.org.uk/evilwm/";
+    description = "Minimalist window manager for the X Window System";
+    license = {
+      shortName = "evilwm";
+      fullName = "Custom, inherited from aewm and 9wm";
+      url = "http://www.6809.org.uk/evilwm/";
+      free = true;
+    }; # like BSD/MIT, but Share-Alike'y; See README.
+    maintainers = with maintainers; [ amiloradovsky ];
+    platforms = platforms.all;
+  };
+}