@@ -569,12 +569,11 @@
 	#ifndef _WIN32
 	# include <sys/types.h>
 	# include <sys/socket.h>
 	# include <netdb.h>
 	#else
-	# define _WIN32_WINNT 0x0501
-	# include <windows.h>
+	typedef unsigned char BOOL;
 	# include <ws2tcpip.h>
 	#endif
 ], [
 	struct addrinfo ai;
 	getaddrinfo(NULL, NULL, NULL, NULL);