if(IOS OR ANDROID) set(OPTION_DEFAULT OFF) set(OPTION_CLIENT_DEFAULT OFF) set(OPTION_SERVER_DEFAULT OFF) else() set(OPTION_DEFAULT ON) set(OPTION_CLIENT_DEFAULT ON) set(OPTION_SERVER_DEFAULT OFF) endif() define_channel_options( NAME "urbdrc" TYPE "dynamic" DESCRIPTION "USB Devices Virtual Channel Extension" SPECIFICATIONS "[MS-RDPEUSB]" DEFAULT ${OPTION_DEFAULT} CLIENT_DEFAULT ${OPTION_CLIENT_DEFAULT} SERVER_DEFAULT ${OPTION_SERVER_DEFAULT} )