+AC_CHECK_DECL([AI_ADDRCONFIG],
+ AC_DEFINE([HAVE_DECL_AI_ADDRCONFIG], 1,
+ [Define this to 1 if AI_ADDRCONFIG macro is defined]), ,
+ [ #include <netdb.h> ] )
+
+if test "$enable_ipv6" = yes; then
+ AC_CHECK_FUNC(inet_ntop, , ,
+ AC_MSG_ERROR(Function 'inet_ntop' not found.))
+ AC_CHECK_FUNC(getnameinfo, , ,
+ AC_MSG_ERROR(Function 'getnameinfo' not found.))
+ AC_CHECK_LIB(tirpc, clnt_tli_create, ,
+ AC_MSG_ERROR([libtirpc needed for IPv6 support]))
+ AC_CHECK_HEADERS(tirpc/netconfig.h, ,
+ AC_MSG_ERROR([libtirpc headers needed for IPv6 support]))
+ AC_CHECK_DECL([AI_ADDRCONFIG], ,
+ AC_MSG_ERROR([full getaddrinfo(3) implementation needed for IPv6 support]),
+ [ #include <netdb.h> ] )
+fi
+