#if !defined ISO && !defined POSIX && !defined XPG3 && !defined XPG4 && !defined UNIX98
macro bool
macro-int-constant true {int} == 1
macro-int-constant false {int} == 0
macro-int-constant __bool_true_false_are_defined {int} == 1

#if !defined ISO && !defined ISO99 && !defined ISO11
allow *_t
#endif
#endif