Attempted to fix c-ares not building on non-IPv6 systems

ares/ares_ipv6.h

@@ -0,0 +1,43 @@
+/* $Id$ */
+
+/*
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifndef ARES_IPV6_H
+#define ARES_IPV6_H
+
+#ifndef HAVE_PF_INET6
+#define PF_INET6 AF_INET6
+#endif
+
+#ifndef HAVE_STRUCT_IN6_ADDR
+struct in6_addr
+{
+  unsigned char s6_addr[16];
+};
+#endif
+
+#ifndef NS_IN6ADDRSZ
+#define NS_IN6ADDRSZ SIZEOF_STRUCT_IN6_ADDR
+#endif
+
+#ifndef NS_INADDRSZ
+#define NS_INADDRSZ SIZEOF_STRUCT_IN_ADDR
+#endif
+
+#ifndef NS_INT16SZ
+#define NS_INT16SZ 2
+#endif
+
+#endif /* ARES_IPV6_H */

ares/ares_private.h

@@ -69,6 +69,8 @@
 
 #endif
 
+#include "ares_ipv6.h"
+
 struct send_request {
   /* Remaining data to send */
   const unsigned char *data;

ares/inet_net_pton.h

@@ -17,17 +17,6 @@
 #ifndef INET_NET_PTON_H
 #define INET_NET_PTON_H
 
-#ifndef HAVE_PF_INET6
-#define PF_INET6 AF_INET6
-#endif
-
-#ifndef HAVE_STRUCT_IN6_ADDR
-struct in6_addr
-{
-  unsigned char s6_addr[16];
-};
-#endif
-
 #if defined(HAVE_INET_PTON) && defined(HAVE_INET_PTON_IPV6)
 #define ares_inet_pton(x,y,z) inet_pton(x,y,z)
 #else
@@ -39,16 +28,4 @@ int ares_inet_pton(int af, const char *src, void *dst);
 int ares_inet_net_pton(int af, const char *src, void *dst, size_t size);
 #endif
 
-#ifndef NS_IN6ADDRSZ
-#define NS_IN6ADDRSZ SIZEOF_STRUCT_IN6_ADDR
-#endif
-
-#ifndef NS_INADDRSZ
-#define NS_INADDRSZ SIZEOF_STRUCT_IN_ADDR
-#endif
-
-#ifndef NS_INT16SZ
-#define NS_INT16SZ 2
-#endif
-
 #endif /* INET_NET_PTON_H */