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/tools/networking/trickle/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchurl, libevent, libtirpc }:
+
+stdenv.mkDerivation rec {
+  pname = "trickle";
+  version = "1.07";
+
+  src = fetchurl {
+    url = "https://monkey.org/~marius/trickle/trickle-${version}.tar.gz";
+    sha256 = "0s1qq3k5mpcs9i7ng0l9fvr1f75abpbzfi1jaf3zpzbs1dz50dlx";
+  };
+
+  buildInputs = [ libevent libtirpc ];
+
+  preConfigure = ''
+    sed -i 's|libevent.a|libevent.so|' configure
+  '';
+
+  preBuild = ''
+    sed -i '/#define in_addr_t/ s:^://:' config.h
+  '';
+
+  NIX_LDFLAGS = [ "-levent" "-ltirpc" ];
+  NIX_CFLAGS_COMPILE = [ "-I${libtirpc.dev}/include/tirpc" ];
+
+  configureFlags = [ "--with-libevent" ];
+
+  hardeningDisable = [ "format" ];
+
+  meta = {
+    description = "Lightweight userspace bandwidth shaper";
+    license = lib.licenses.bsd3;
+    homepage = "https://monkey.org/~marius/pages/?page=trickle";
+    platforms = lib.platforms.linux;
+  };
+}