# Optional functions
AC_CHECK_FUNCS_ONCE([ \
gai_strerror getaddrinfo getnameinfo inet_aton sigaction sigprocmask \
- snprintf vsnprintf strdup strlcpy strlcat strtok_r waitpid])
+ snprintf vsnprintf strdup strndup strlcpy strlcat strtok_r waitpid])
# -- Configuration options --