osdSockUnsentCount.c check for existance of SIO_TCP_INFO

mdavidsaver · Oct 25, 2019 · f0d9691 · f0d9691
1 parent fc04d12
commit f0d9691
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/modules/libcom/src/osi/os/WIN32/osdSockUnsentCount.c b/modules/libcom/src/osi/os/WIN32/osdSockUnsentCount.c
@@ -13,7 +13,7 @@
  * See https://docs.microsoft.com/en-us/windows/win32/api/mstcpip/ns-mstcpip-tcp_info_v0
  */
 int epicsSocketUnsentCount(SOCKET sock) {
-#if defined (_WIN32) && WINVER >= _WIN32_WINNT_WIN10
+#if defined (_WIN32) && defined(SIO_TCP_INFO)
 /* Windows 10 Version 1703 / Server 2016 */
     DWORD infoVersion = 0, bytesReturned;
     TCP_INFO_v0 tcpInfo;