AC_CHECK_FUNCS_ONCE([ \
arc4random arc4random_stir gai_strerror getaddrinfo getnameinfo inet_aton
sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \
AC_CHECK_FUNCS_ONCE([ \
arc4random arc4random_stir gai_strerror getaddrinfo getnameinfo inet_aton
sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \