Commit f26d858e authored by Eli Zaretskii's avatar Eli Zaretskii
Browse files

(find-backup-file-name) [ms-dos]: If support for long

file names is not available, behave as if version-control were set
to never.
parent 97ea7b55
......@@ -2386,7 +2386,11 @@ Uses `backup-directory-alist' in the same way as does
;; Run a handler for this function so that ange-ftp can refuse to do it.
(if handler
(funcall handler 'find-backup-file-name fn)
(if (eq version-control 'never)
(if (or (eq version-control 'never)
;; We don't support numbered backups on plain MS-DOS
;; when long file names are unavailable.
(and (eq system-type 'ms-dos)
(not (msdos-long-file-names))))
(list (make-backup-file-name fn))
(let* ((basic-name (make-backup-file-name-1 fn))
(base-versions (concat (file-name-nondirectory basic-name)
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