+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 "$enable_tirpc" = yes; then
+ AC_CHECK_LIB(tirpc, clnt_tli_create, ,
+ AC_MSG_ERROR([libtirpc not found.]))
+ AC_CHECK_HEADERS(tirpc/netconfig.h, ,
+ AC_MSG_ERROR([libtirpc headers not found.]))
+ AC_CHECK_FUNCS([bindresvport_sa getnetconfig \
+ clnt_create clnt_create_timed \
+ clnt_vc_create clnt_dg_create xdr_rpcb])
+fi
+
+if test "$enable_ipv6" = yes; then
+ if test "$enable_tirpc" = no; then
+ AC_MSG_ERROR('--enable-ipv6' requires '--enable-tirpc'.)
+ fi
+ AC_CHECK_FUNC(getnameinfo, , ,
+ AC_MSG_ERROR(Function 'getnameinfo' not found.))
+ AC_CHECK_DECL([AI_ADDRCONFIG], ,
+ AC_MSG_ERROR([full getaddrinfo(3) implementation needed for IPv6 support]),
+ [ #include <netdb.h> ] )
+fi
+