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/libvncserver/default.nix

@@ -0,0 +1,54 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchpatch
+, cmake
+, libjpeg
+, openssl
+, zlib
+, libgcrypt
+, libpng
+, systemd
+, Carbon
+}:
+
+stdenv.mkDerivation rec {
+  pname = "libvncserver";
+  version = "0.9.13";
+
+  outputs = [ "out" "dev" ];
+
+  src = fetchFromGitHub {
+    owner = "LibVNC";
+    repo = "libvncserver";
+    rev = "LibVNCServer-${version}";
+    sha256 = "sha256-gQT/M2u4nWQ0MfO2gWAqY0ZJc7V9eGczGzcsxKmG4H8=";
+  };
+
+  nativeBuildInputs = [
+    cmake
+  ];
+
+  buildInputs = [
+    libjpeg
+    openssl
+    libgcrypt
+    libpng
+  ] ++ lib.optionals stdenv.isLinux [
+    systemd
+  ] ++ lib.optional stdenv.isDarwin [
+    Carbon
+  ];
+
+  propagatedBuildInputs = [
+    zlib
+  ];
+
+  meta = with lib; {
+    description = "VNC server library";
+    homepage = "https://libvnc.github.io/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ raskin ];
+    platforms = platforms.unix;
+  };
+}