PREFIX
#define PREFIX(pre, str) (strncmp((pre), (str), strlen(pre)) == SAME)
#define PREFIX "Connect problem: "
#define PREFIX indent, MSG_ORIG(MSG_STR_EMPTY), opname
#undef PREFIX
#define PREFIX(pre, str) (strncmp((pre), (str), strlen(pre)) == SAME)
PREFIX, /* a REP instruction prefix */
#define PREFIX "\t"
#define PREFIX(pre, str) (strncmp((pre), (str), strlen(pre)) == SAME)