Missing NETDB_INTERNAL now falls back to -1

CHANGES

@@ -8,6 +8,9 @@ Porting:
 
 	New Linux distributions dislike egrep, fgrep
 
+	When NETDB_INTERNAL is not available it should be set to -1.
+	Thanks to Baruch Siach for sending a patch.
+
 Testing:
 	test.sh: lots of corrections and improvements
 

compat.h

@@ -851,6 +851,8 @@ typedef unsigned long T_sigset;
 
 #if !defined(NETDB_INTERNAL) && defined(h_NETDB_INTERNAL)
 #  define NETDB_INTERNAL h_NETDB_INTERNAL
+#elif !defined(NETDB_INTERNAL)
+#  define NETDB_INTERNAL (-1)
 #endif
 
 #ifndef INET_ADDRSTRLEN

xio-ip.c

@@ -391,6 +391,9 @@ int xiogetaddrinfo(const char *node, const char *service,
       }
    }
 
+#else
+   Error("no resolver function available");
+   return STAT_NORETRY;
 #endif
 
    if (numnode)  free(numnode);