Re: Output to directory patch

[Al Haji-Ali]

> On 25/02/2021, Arash Esbati wrote:
>> I didn't test your patch or read it carefully, but please note that
>> AUCTeX currently requires Emacs >= 24.3.  Your patch uses `when-let' and
>> `if-let' which were introduced in Emacs 25.1.  In order to have a chance
>> to incorporate your patch, please remove those macros or rewrite the
>> code.

Done.

https://raw.githubusercontent.com/haji-ali/auctex/tex-build-only/etc/auctex-output-dir.patch

I also greatly simplified/clarified the implementation in TeX-master-file which 
I hope will increase reliability.

Best regards,
-- Al