dnl Checks for header files.
+AC_CHECK_HEADERS(sys/socket.h)
AC_CHECK_HEADERS(openssl/crypto.h,[CLIENT_SSL=bin/client-ssl])
AC_CHECK_HEADERS(gnutls/gnutls.h,[CLIENT_GNUTLS=bin/client-gnutls])
AC_SEARCH_LIBS([inet_addr], [nsl])
AC_SEARCH_LIBS([connect], [socket])
+AC_SEARCH_LIBS([inet_pton], [nsl socket resolv])
+AC_SEARCH_LIBS([inet_ntop], [nsl socket resolv])
dnl "Export" these variables