Re: multiple Emacs versions on w32

[Lennart Borgman <lennart.borgman.073@student.lu.se>]

Phillip Lord wrote:
> B. T. Raven wrote:
>   
>> I am using both 21.3 and 22.0.50.1 on the same machine (w32-msw98).
>>     
...
>> differently. Is there any way that I can parameterize the invocation
>> of the two versions or at least set them up so as to allow each one
>> to load its own separate version of the dotemacs? For now I use the
>> cvs version only for its more complete documentation and for tutorial
>> purposes since it won't run for longer than a couple of hours without
>> causing a segmentation fault. 
>>
>>     
>
>
>
> There are a couple of options. 
>
> Either launch emacs with "-q -l ~/.emacs.22" (or what ever file
> you want to use). 
>
> Or alternatively you could use the emacs-version variable, and 
> have your .emacs work appropriately. You'd need check that your
> `custom-file' is being set appropriately. 
>
> Incidentally, emacs should not seg fault after a couple of hours. 
> I'm using the emacs-w32 from here. 
> http://ourcomments.org/Emacs/EmacsW32.html
>
> I use the unpatched version without the W32 integration layer. 
> This works well for me. I think I got it to core dump once, but
> not repeatedly. 
>
> Cheers
>
> Phil
>   

I use something similar to this in my .emacs:

    (progn
      (cond
       ( (equal emacs-version "21.3.1")
     (setq custom-file "~/.emacs-cust-21.3.el"))
       ( t
     (setq custom-file "~/.emacs-cust-cvs.el")))
   (when (file-exists-p custom-file)
      (load custom-file)))

If you want to switch between different installed versions of Emacs you 
can use "usethis.exe" that comes with EmacsW32 and should be in the 
emacs\bin directory. This will change "emacs_dir" in the Registry so 
that gnuclient will select the one you have choosen.

I am using the patched version of Emacs that is available on the site 
above. I do not think I have seen any core dumps at all.
Have you tested that version? Do you see any crashes with this version? 
Do you have more information about the crashes? (See "Bugs" in the Emacs 
info.)

-- lennart