(hack-local-variables, dir-locals-read-from-file): Bind
read-circle to nil before reading.
* lread.c (Vread_circle): New variable.
(read1): Disable recursive read if Vread_circle is nil.
the mtime of the directory-local variables file (Bug#2833).
(dir-locals-set-directory-class): New arg mtime. Store it in
dir-locals-directory-cache.
(dir-locals-find-file): Check cache validity using the mtime.
(dir-locals-read-from-file): Save the file mtime in the cache.
(hack-dir-local-variables): Adapt to new
dir-locals-directory-cache entry format.
(break-hardlink-on-save): New variable.
(basic-save-buffer-2): Honor new variable break-hardlink-on-save.
(file-precious-flag): Mention it in doc string.
`after-completion' value to request confirm only after TAB.
(confirm-nonexistent-file-or-buffer): New function.
(read-buffer-to-switch, find-file, find-file-other-window)
(find-file-other-frame, find-file-read-only)
(find-file-read-only-other-window)
(find-file-read-only-other-frame): Use it.
(switch-to-buffer-other-window, switch-to-buffer-other-frame): Doc
fix.
`dir-name'. Move `(or dir-name name)' to let-binding of `name'.
(hack-local-variables-filter): Rename arg `project' to `dir-name'.
(hack-local-variables): Rename call of `hack-project-variables' to
`hack-dir-local-variables'. Change error text to "Directory-local
variables error".
(dir-locals-class-alist): Rename from `project-class-alist'.
(dir-locals-directory-alist): Rename from `project-directory-alist'.
(dir-locals-get-class-variables): Rename from `project-get-alist'.
(dir-locals-collect-mode-variables): Rename from
`project-collect-bindings-from-alist'. Rename arg `mode-alist' to
`mode-variables', and arg `settings' to `variables'.
(dir-locals-collect-variables): Rename from
`project-collect-binding-list'. Rename arg `binding-list' to
`class-variables', and arg `settings' to `variables'.
(dir-locals-set-directory-class): Rename from `set-directory-project'.
(dir-locals-set-class-variables): Rename from `define-project-bindings'.
Rename arg `settings' to `variables'.
(dir-locals-file): New defconst.
(dir-locals-find-file): Rename from `project-find-settings-file'.
Use `dir-locals-file'. Rename let-bound `settings' to `locals-file',
and `pda' to `dir-elt'.
(dir-locals-read-from-file): Rename from
`project-define-from-project-file'. Rename arg `settings-file'
to `file'. Rename let-bound `list' to `variables'.
(hack-dir-local-variables): Rename from `hack-project-variables'.
Rename let-bound `settings' to `variables-file', `root-dir'
to `dir-name', and `bindings' to `variables'.
