config_query_option FG_JSBSIM  "enable jsbsim?"     y "-DENABLE_JSBSIM=ON"     "-DENABLE_JSBSIM=OFF"     &&
config_query_option FG_LARCSIM "enable larcsim?"    n "-DENABLE_LARCSIM=ON"    "-DENABLE_LARCSIM=OFF"    &&
config_query_option FG_UIUC    "enable uiuc model?" n "-DENABLE_UIUC_MODEL=ON" "-DENABLE_UIUC_MODEL=OFF" &&
config_query_option FG_YASIM   "enable yasim?"      y "-DENABLE_YASIM=ON"      "-DENABLE_YASIM=OFF"
