config BR2_PACKAGE_SCONESERVER_MYSQL
        bool "mysql"
+       depends on BR2_USE_MMU # mysql
        select BR2_PACKAGE_MYSQL_CLIENT
        help
          MySQL module for Sconeserver
 
 config BR2_PACKAGE_SCONESERVER_BLUETOOTH
        bool "bluetooth"
+       depends on BR2_USE_WCHAR # bluez->libglib2
+       depends on BR2_USE_MMU # bluez->dbus
+       depends on BR2_TOOLCHAIN_HAS_THREADS # bluez->dbus
        select BR2_PACKAGE_BLUEZ_UTILS
        help
          Bluetooth module for Sconeserver
 
 config BR2_PACKAGE_SCONESERVER_LOCATION
        bool "location"
+       depends on BR2_USE_MMU # gpsd
+       depends on BR2_TOOLCHAIN_HAS_THREADS # gpsd
        select BR2_PACKAGE_GPSD
        help
          Location module for Sconeserver