redirector allows the six letters between 'Z' and 'a' as well. */
#ifdef MSDOS
#define IS_DRIVE(x) ((x) >= 'A' && (x) <= 'z')
-/* Need to lower-case the drive letter, or else expanded
- filenames will sometimes compare inequal, because
- `expand-file-name' doesn't always down-case the drive letter. */
-#define DRIVE_LETTER(x) (tolower (x))
#endif
#ifdef WINDOWSNT
#define IS_DRIVE(x) isalpha (x)
-extern Lisp_Object Vwin32_downcase_file_names;
-#define DRIVE_LETTER(x) (NILP (Vwin32_downcase_file_names) ? (x) : tolower (x))
#endif
+/* Need to lower-case the drive letter, or else expanded
+ filenames will sometimes compare inequal, because
+ `expand-file-name' doesn't always down-case the drive letter. */
+#define DRIVE_LETTER(x) (tolower (x))
#endif
#ifdef VMS