allow use of the DDEBUG macro from the outside (via the "-D DDEBUG=1" cc opton).
allow use of the DDEBUG macro from the outside (via the "-D DDEBUG=1" cc opton).

yeahdongcn/SEnginx,yeahdongcn/SEnginx,yeahdongcn/SEnginx,yeahdongcn/SEnginx,yeahdongcn/SEnginx,yeahdongcn/SEnginx,yeahdongcn/SEnginx