with these changes, it builds on my win32 cross-compiler

inet_net_pton.c

@@ -19,10 +19,25 @@
 
 
 #include <sys/types.h>
+
+#if defined(WIN32) && !defined(WATT32)
+#include "nameser.h"
+#else
+
+#ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
 #include <arpa/nameser.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
+#endif
+
+#endif
 
 #include <ctype.h>
 #include <errno.h>

nameser.h

@@ -16,6 +16,8 @@
 
 #define EINPROGRESS WSAEINPROGRESS
 #define EWOULDBLOCK WSAEWOULDBLOCK
+#define EMSGSIZE ERANGE /* FIX: is there a better replacement? */
+#define EAFNOSUPPORT ERANGE /* FIX: is there a better replacement? */
 
 /* Structure for scatter/gather I/O.  */
 struct iovec
@@ -37,7 +39,9 @@ int ares_gettimeofday(struct timeval *tv, struct timezone *tz);
 #endif  /* !NETWARE */
 
 #define NS_CMPRSFLGS  0xc0
-
+#define NS_IN6ADDRSZ  16
+#define NS_INT16SZ    2
+#define NS_INADDRSZ   4
 
   /* Flag bits indicating name compression. */
 #define INDIR_MASK    NS_CMPRSFLGS