anchor.diff:    configureFlags = [
       "--sysconfdir=/etc"
       "--localstatedir=/var"
  +    "--enable-pie"
       "--enable-threads"
       "--enable-library"
  -    "--disable-test"
  -    "--enable-tools"
  -    "--enable-monitor"
  -    "--enable-udev"
  -    "--enable-cups"
  -    "--enable-obex"
  -    "--enable-client"
  -    "--enable-systemd"
  -    "--enable-experimental"
  +    "--enable-nfc"
  +    "--enable-sap"
  +    "--enable-health"
  +    "--enable-mesh"
  +    "--enable-manpages"
       "--enable-sixaxis"
  -    "--disable-android"
     ];
  +
  +  preInstall = ''
  +    installFlagsArray+=(
  +      "sysconfdir=$out/etc"
  +    )
  +  '';
   
     passthru = {
       srcVerification = fetchurl {
  
positive.code: 
  , dbus
  , glib
  , libical
  , readline
  , systemd_lib
  
negative.code:   buildInputs = [
      dbus
      glib
      json-c
      libical
      readline
      systemd_lib
    ];
  
    preConfigure = ''
      grep -q '"/sbin/udevadm' tools/hid2hci.rules
      sed -i tools/hid2hci.rules \
        -e 's,/sbin/udevadm,${systemd_lib}/bin/udevadm,' \
        -e 's,hid2hci ,$out/lib/udev/hid2hci ,'
  
  