Sync with 'maint'

diff --git a/compat/poll/poll.c b/compat/poll/poll.c
index 44103103a4a71ff25e5e8e1d106221a9dd2e9908..31163f2ae7b71857889f561dea0b3ffecff61989 100644 (file)
--- a/compat/poll/poll.c
+++ b/compat/poll/poll.c
@@ -39,7 +39,7 @@
 
 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
 # define WIN32_NATIVE
-# if defined (_MSC_VER)
+# if defined (_MSC_VER) && !defined(_WIN32_WINNT)
 #  define _WIN32_WINNT 0x0502
 # endif
 # include <winsock2.h>