Merge branch 'js/mingw-load-sys-dll'

The way DLLs are loaded on the Windows port has been improved.

* js/mingw-load-sys-dll:
  mingw: load system libraries the recommended way

compat/mingw.c

@@ -1624,7 +1624,8 @@ static void ensure_socket_initialization(void)
 			WSAGetLastError());
 
 	for (name = libraries; *name; name++) {
-		ipv6_dll = LoadLibrary(*name);
+		ipv6_dll = LoadLibraryExA(*name, NULL,
+					  LOAD_LIBRARY_SEARCH_SYSTEM32);
 		if (!ipv6_dll)
 			continue;