Re: Spurious buffer saving triggered by M-x compile

[Juri Linkov]

>> `compilation-save-buffers-predicate' is already implemented in compile.el.
>
> I don't see it. My emacs must be too old.

(defcustom compilation-save-buffers-predicate nil
  "The second argument (PRED) passed to `save-some-buffers' before compiling.
E.g., one can set this to
  (lambda ()
    (string-prefix-p my-compilation-root (file-truename (buffer-file-name))))
to limit saving to files located under `my-compilation-root'.
Note, that, in general, `compilation-directory' cannot be used instead
of `my-compilation-root' here."
  :type '(choice
          (const :tag "Default (save all file-visiting buffers)" nil)
          (const :tag "Save all buffers" t)
          function)
  :group 'compilation
  :version "24.1")

-- 
Juri Linkov
http://www.jurta.org/emacs/