ipv6: fix detection under mingw

[gnulib.git] / m4 / sockpfaf.m4

diff --git a/m4/sockpfaf.m4 b/m4/sockpfaf.m4
index 8a0c236..8806705 100644 (file)
--- a/m4/sockpfaf.m4
+++ b/m4/sockpfaf.m4
@@ -47,6 +47,9 @@ AC_DEFUN([gl_SOCKET_FAMILIES],
 #endif
 #ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
 #endif]],
 [[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;
  if (&x && &y && &z) return 0;]])],