sockaddr_storage check needs sys/socket.h

This commit was SVN r14702.

configure.ac

@@ -665,6 +665,7 @@ AC_CHECK_TYPES([struct sockaddr_in6], [], [], [AC_INCLUDES_DEFAULT
 #include <netinet/in.h>
 #endif])
 AC_CHECK_TYPES([struct sockaddr_storage], [], [], [AC_INCLUDES_DEFAULT
+#include <sys/socket.h>
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif])