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>

nixos/modules/services/networking/sabnzbd.nix

@@ -0,0 +1,77 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.sabnzbd;
+  inherit (pkgs) sabnzbd;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+    services.sabnzbd = {
+      enable = mkEnableOption "the sabnzbd server";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.sabnzbd;
+        defaultText = "pkgs.sabnzbd";
+        description = "The sabnzbd executable package run by the service.";
+      };
+
+      configFile = mkOption {
+        type = types.path;
+        default = "/var/lib/sabnzbd/sabnzbd.ini";
+        description = "Path to config file.";
+      };
+
+      user = mkOption {
+        default = "sabnzbd";
+        type = types.str;
+        description = "User to run the service as";
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "sabnzbd";
+        description = "Group to run the service as";
+      };
+    };
+  };
+
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+    users.users.sabnzbd = {
+          uid = config.ids.uids.sabnzbd;
+          group = "sabnzbd";
+          description = "sabnzbd user";
+          home = "/var/lib/sabnzbd/";
+          createHome = true;
+    };
+
+    users.groups.sabnzbd = {
+      gid = config.ids.gids.sabnzbd;
+    };
+
+    systemd.services.sabnzbd = {
+        description = "sabnzbd server";
+        wantedBy    = [ "multi-user.target" ];
+        after = [ "network.target" ];
+        serviceConfig = {
+          Type = "forking";
+          GuessMainPID = "no";
+          User = "${cfg.user}";
+          Group = "${cfg.group}";
+          ExecStart = "${lib.getBin cfg.package}/bin/sabnzbd -d -f ${cfg.configFile}";
+        };
+    };
+  };
+}