/* Before doing "#define mkdir rpl_mkdir" below, we need to include all
headers that may declare mkdir(). */
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-# include <io.h>
+# include <io.h> /* mingw32, mingw64 */
+# include <direct.h> /* mingw64 */
#endif
#ifndef S_IFMT
#else
/* mingw's _mkdir() function has 1 argument, but we pass 2 arguments.
Additionally, it declares _mkdir (and depending on compile flags, an
- alias mkdir), only in the nonstandard <io.h>, which is included above. */
+ alias mkdir), only in the nonstandard includes <direct.h> and <io.h>,
+ which are included above. */
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
static inline int