Subject: bug#49822: master e32c7d2: Change Python eval to send directly instead of using temporary files

From: Michael Albinus <[email-masked]>
Date: Mon, 06 Sep 2021 13:23:05 +0200

Andreas Schwab <[email-masked]> writes:

>>> Okay, so is the TTY line length limit of the OS available in Lisp
>>> somewhere?  Otherwise, can we at least trust that 1024 is the universal
>>> lower bound?
>>
>> On systems with a POSIX shell:
>>
>> (let ((default-directory "/"))
>>   (read (shell-command-to-string "getconf LINE_MAX")))
>
> LINE_MAX has nothing to do with the tty line discipline.

I'll never learn it :-(

We've discussed this issue some years ago already. IIRC, the outcome was
to use "getconf PIPE_BUF /" instead.

> Andreas.

Best regards, Michael.