diff --git a/include/windconf.h b/include/windconf.h
index fb9781aa1..6eb5b2687 100644
--- a/include/windconf.h
+++ b/include/windconf.h
@@ -100,10 +100,12 @@ extern void interject(int);
  */
 
 #ifdef __MINGW32__
+#if 0
 #define MD_USE_TMPFILE_S
 #if !defined(__cplusplus)
 extern errno_t tmpfile_s(FILE * restrict * restrict streamptr);
 #endif
+#endif
 #
 #ifdef strncasecmp
 #undef strncasecmp