#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK
#define RESERVE_BB_BUFFER(buffer,len) char buffer[len]
#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len]
#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK
#define RESERVE_BB_BUFFER(buffer,len) char buffer[len]
#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len]