_POSIX_C_SOURCE
# if _POSIX_C_SOURCE >= 199309L
#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
#if defined(_BSD_SOURCE) || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L)
#elif (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600)
#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
#ifndef _POSIX_C_SOURCE
#elif !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 200809L \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L)
#ifdef _POSIX_C_SOURCE
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) \
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L
#if defined(OMITTED__D_POSIX_C_SOURCE_200112) && !defined(_POSIX_C_SOURCE)
#if __BSD_VISIBLE || _POSIX_C_SOURCE > 200809
#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
#ifdef _POSIX_C_SOURCE
#if _POSIX_C_SOURCE >= 202405
#elif _POSIX_C_SOURCE >= 200809
#elif _POSIX_C_SOURCE >= 200112
#elif _POSIX_C_SOURCE >= 199506
#elif _POSIX_C_SOURCE >= 199309
#elif _POSIX_C_SOURCE >= 199209
#elif _POSIX_C_SOURCE >= 199009
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2