__STDC_VERSION__   95 lib/libz/zconf.h #ifdef __STDC_VERSION__
__STDC_VERSION__   99 lib/libz/zconf.h #  if __STDC_VERSION__ >= 199901L
__STDC_VERSION__  303 sys/cdefs.h    #if defined(_ISOC99_SOURCE) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901)