Re: Warning on files byte-compiled with different versions

[Andreas Schwab]

Stefan Monnier <address@hidden> writes:

>> So, the answer is no, AFAICT. Second question, is there any reason why
>> this kind of functionality could not be added?
>
> Indeed.  The byte-compiler could simply emit
>
>    `(if (< emacs-major-version ,emacs-major-version)
>         (message "This file was compiled for a more recent Emacs"))
>
> at the beginning of every file.  IIRC we used to do something like that.

We have the bytecode version encoded in the header, and a check if it
contains multi-byte characters.  Just because the file was compiled by a
later version should not be a reason to prevent loading it, only if the
format itself changes.

Andreas.

-- 
Andreas Schwab, address@hidden
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