bind gethostbyaddr gethostbyname gethostname inet_ntoa \
setsid setsockopt socket strcasecmp waitpid],,AC_MSG_ERROR([required function missing!]))
bind gethostbyaddr gethostbyname gethostname inet_ntoa \
setsid setsockopt socket strcasecmp waitpid],,AC_MSG_ERROR([required function missing!]))