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/networking/mpop/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, stdenv
+, fetchurl
+, gnutls
+, gsasl
+, libidn
+, pkg-config
+, Security
+}:
+
+stdenv.mkDerivation rec {
+  pname = "mpop";
+  version = "1.4.16";
+
+  src = fetchurl {
+    url = "https://marlam.de/${pname}/releases/${pname}-${version}.tar.xz";
+    sha256 = "sha256-hw61cerm0j+5KtDITXnenDjF9iTjYUk31XS/5Jumh/k=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    gnutls
+    gsasl
+    libidn
+  ] ++ lib.optional stdenv.isDarwin [
+    Security
+  ];
+
+  configureFlags = lib.optional stdenv.isDarwin [
+    "--with-macosx-keyring"
+  ];
+
+  meta = with lib;{
+    description = "POP3 mail retrieval agent";
+    homepage = "https://marlam.de/mpop";
+    license = licenses.gpl3Plus;
+    platforms = platforms.unix;
+  };
+}