bug#12135: 24.1.50; compatibility between compiled files in emacs-24.1 and 24.2

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

Thierry Volpiatto <thierry.volpiatto@gmail.com> writes:

> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>
>>>> Yes, and these files should work correctly under Emacs-24.2 (at least
>>>> I did try to preserve this compatibility).
>>> No, they don't either, try it.
>>
>> Indeed, I see that C-x c M-x doesn't work when compiled with Emacs-24.1
>> and run with the trunk.
>> But since we don't get any error message, I'm not sure where to start
>> looking for the cause.  You pointed the finger at flet, so maybe you
>> have some idea (or gut feeling)?
> Maybe you are right here Stefan and flet is not the culprit.
> I remove the flet from the function and the result is the same:
> I doesn't work without recompiling.
> But when trying this I fall to this error (that happened with files not
> recompiled):
>
> symbol definition is void tty-top-frame
If I look at the compiled file helm-files.el, tty-top-frame appear in
byte-compiled form of all defalias in this file, which is not recognized
by Emacs-24.1 when loading these files.

> This error popup when using C-z in helm-find-files (to expand a
> directory).

-- 
  Thierry
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