-option(ENABLE_LIBSVN "Set to ON to build FlightGear/terrasync with libsvnclient support" ON)
-option(ENABLE_RTI "Set to ON to build SimGear with RTI support" OFF)
-option(WITH_FGPANEL "Set to ON to build the fgpanel application" ON)
-option(JPEG_FACTORY "Enable JPEG-factory support" OFF)
-option(ENABLE_TESTS "Set to OFF to disable building test applications" ON)
+option(ENABLE_RTI "Set to ON to build FlightGear with RTI support" OFF)
+option(ENABLE_PROFILE "Set to ON to build FlightGear with gperftools profiling support" OFF)
+option(SYSTEM_SQLITE "Set to ON to build FlightGear with the system's SQLite3 library" OFF)
+option(ENABLE_IAX "Set to ON to build FlightGear with IAXClient/fgcom built-in (default)" ON)
+option(USE_DBUS "Set to ON to build FlightGear with DBus screensaver interaction (default on Linux)" ${USE_DBUS_DEFAULT})
+option(SYSTEM_SPEEX "Set to ON to build IAXClient with the system's speex and speexdsp library" ${SYSTEM_SPEEX_DEFAULT})
+option(SYSTEM_GSM "Set to ON to build IAXClient with the system's GSM library" ${SYSTEM_GSM_DEFAULT})
+option(SYSTEM_FLITE "Set to ON to build Flightgear with the system's Flite library" ${SYSTEM_FLITE_DEFAULT})
+option(SYSTEM_HTS_ENGINE "Set to ON to build Flightgear with the system's HTS Engine library" ${SYSTEM_HTS_ENGINE_DEFAULT})
+
+# additional utilities
+option(ENABLE_FGADMIN "Set to ON to build the FGADMIN application (default)" ON)
+option(ENABLE_FGELEV "Set to ON to build the fgelev application (default)" ON)
+option(WITH_FGPANEL "Set to ON to build the fgpanel application (default)" ON)
+option(ENABLE_FGVIEWER "Set to ON to build the fgviewer application (default)" ON)
+option(ENABLE_GPSSMOOTH "Set to ON to build the GPSsmooth application (default)" ON)
+option(ENABLE_TERRASYNC "Set to ON to build the terrasync application (default)" ON)
+option(ENABLE_FGJS "Set to ON to build the fgjs application (default)" ON)
+option(ENABLE_JS_DEMO "Set to ON to build the js_demo application (default)" ON)
+option(ENABLE_METAR "Set to ON to build the metar application (default)" ON)
+option(ENABLE_TESTS "Set to ON to build test applications (default)" ON)
+option(ENABLE_FGCOM "Set to ON to build the FGCom application (default)" ON)
+option(ENABLE_FLITE "Set to ON to build the Flite text-to-speech module" ON)
+option(ENABLE_QT "Set to ON to build the internal Qt launcher" ON)