smartmontools: fix missing hostname in notifications

This properly registers some missing dependencies of smartd_warning.sh.

nixos/modules/services/monitoring/smartd.nix

@@ -239,11 +239,7 @@ in
 
     systemd.services.smartd = {
       description = "S.M.A.R.T. Daemon";
-
       wantedBy = [ "multi-user.target" ];
-
-      path = [ pkgs.nettools ]; # for hostname and dnsdomanname calls in smartd
-
       serviceConfig.ExecStart = "${pkgs.smartmontools}/sbin/smartd ${lib.concatStringsSep " " cfg.extraOptions} --no-fork --configfile=${smartdConf}";
     };
 

pkgs/tools/system/smartmontools/default.nix

@@ -1,4 +1,5 @@
 { stdenv, fetchurl, autoreconfHook
+, mailutils, inetutils
 , IOKit ? null , ApplicationServices ? null }:
 
 let
@@ -24,6 +25,10 @@ in stdenv.mkDerivation rec {
   patches = [ ./smartmontools.patch ];
   postPatch = "cp -v ${driverdb} drivedb.h";
 
+  configureFlags = [
+    "--with-scriptpath=${stdenv.lib.makeBinPath [ mailutils inetutils ]}"
+  ];
+
   nativeBuildInputs = [ autoreconfHook ];
   buildInputs = [] ++ stdenv.lib.optionals stdenv.isDarwin [IOKit ApplicationServices];
   enableParallelBuilding = true;