# define taccess _waccess
# define tstrdup wcsdup
# define ttempnam _wtempnam
+# define tgetenv _wgetenv
+# define totlower(c) towlower((wchar_t)(c))
/* The following "tchar" functions do not have exact wide-character equivalents
* on Windows so require parameter rearrangement or redirection to a replacement
* function defined ourselves. */
# define tmkdir mkdir
# define tstrdup strdup
# define ttempnam tempnam
+# define tgetenv getenv
+# define totlower(c) tolower((unsigned char)(c))
# define TSTRDUP STRDUP
# define tstrerror_r strerror_r
# define trename rename