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/servers/uftp/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchurl, openssl }:
+
+stdenv.mkDerivation rec {
+  pname = "uftp";
+  version = "5.0";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/uftp-multicast/source-tar/uftp-${version}.tar.gz";
+    sha256 = "1q08schd765fsm9647ac4ic2x70ys2x48mqz97mibdi4bbm72bsn";
+  };
+
+  buildInputs = [ openssl ];
+
+  outputs = [ "out" "man" ];
+
+  patchPhase = ''
+    substituteInPlace makefile --replace gcc cc
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin $man/share/man/man1
+    cp {uftp,uftpd,uftp_keymgt,uftpproxyd} $out/bin/
+    cp {uftp.1,uftpd.1,uftp_keymgt.1,uftpproxyd.1} $man/share/man/man1
+  '';
+
+  meta = {
+    description = "Encrypted UDP based FTP with multicast";
+    homepage = "http://uftp-multicast.sourceforge.net/";
+    license = lib.licenses.gpl3;
+    maintainers = [ lib.maintainers.fadenb ];
+    platforms = with lib.platforms; linux ++ darwin;
+  };
+}