1SubDir OBOS_TOP src add-ons print transports usb_port ; 2 3SubDirHdrs [ FDirName $(OBOS_TOP) src add-ons print transports shared ] ; 4 5UsePrivateHeaders interface print ; 6 7Addon USB\ Port : print transport : 8 print_transport.cpp 9; 10 11LinkSharedOSLibs USB\ Port : be libprinttransportaddon.a ; 12 13