394 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
395 #undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
396 #define	_POSIX_C_SOURCE		199009  macro
400 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
401 #undef _POSIX_C_SOURCE
402 #define	_POSIX_C_SOURCE		199209  macro
409 #undef _POSIX_C_SOURCE
410 #define	_POSIX_C_SOURCE		200809  macro
413 #undef _POSIX_C_SOURCE
414 #define	_POSIX_C_SOURCE		200112  macro
417 #undef _POSIX_C_SOURCE
418 #define	_POSIX_C_SOURCE		199506  macro
426 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
427 #define	_POSIX_C_SOURCE		198808  macro
429 #ifdef _POSIX_C_SOURCE
430 #if _POSIX_C_SOURCE >= 200809
433 #elif _POSIX_C_SOURCE >= 200112
436 #elif _POSIX_C_SOURCE >= 199506
439 #elif _POSIX_C_SOURCE >= 199309
442 #elif _POSIX_C_SOURCE >= 199209
445 #elif _POSIX_C_SOURCE >= 199009