_POSIX_CHILD_MAX
# ifdef _POSIX_CHILD_MAX
# define CHILD_MAX ((_POSIX_CHILD_MAX) * 2)
#ifdef _POSIX_CHILD_MAX
{ "_POSIX_CHILD_MAX" , _POSIX_CHILD_MAX, 25 },
{ "_POSIX_CHILD_MAX", CONSTANT, _POSIX_CHILD_MAX },