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/http/yaws/default.nix

@@ -0,0 +1,35 @@
+{lib, stdenv, fetchurl, erlang, pam, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "yaws";
+  version = "2.0.6";
+
+  src = fetchurl {
+    url = "http://yaws.hyber.org/download/${pname}-${version}.tar.gz";
+    sha256 = "03nh97g7smsgm6sw5asssmlq7zgx6y2gnn7jn0lv2x5mkf5nzyb9";
+  };
+
+  # The tarball includes a symlink yaws -> yaws-1.95, which seems to be
+  # necessary for importing erlang files
+  unpackPhase = ''
+    tar xzf $src
+    cd $name
+  '';
+
+  configureFlags = [ "--with-extrainclude=${pam}/include/security" ];
+
+  buildInputs = [ erlang pam perl ];
+
+  postInstall = ''
+    sed -i "s#which #type -P #" $out/bin/yaws
+  '';
+
+  meta = with lib; {
+    description = "A high performance HTTP 1.1 server in Erlang";
+    homepage = "http://yaws.hyber.org";
+    license = licenses.bsd2;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ goibhniu ];
+  };
+
+}