666 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
667 #undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
668 #define	_POSIX_C_SOURCE		199009  macro
672 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
673 #undef _POSIX_C_SOURCE
674 #define	_POSIX_C_SOURCE		199209  macro
681 #undef _POSIX_C_SOURCE
682 #define	_POSIX_C_SOURCE		200809  macro
685 #undef _POSIX_C_SOURCE
686 #define	_POSIX_C_SOURCE		200112  macro
689 #undef _POSIX_C_SOURCE
690 #define	_POSIX_C_SOURCE		199506  macro
698 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
699 #define	_POSIX_C_SOURCE		198808  macro
701 #ifdef _POSIX_C_SOURCE
702 #if _POSIX_C_SOURCE >= 200809
705 #elif _POSIX_C_SOURCE >= 200112
708 #elif _POSIX_C_SOURCE >= 199506
711 #elif _POSIX_C_SOURCE >= 199309
714 #elif _POSIX_C_SOURCE >= 199209
717 #elif _POSIX_C_SOURCE >= 199009