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bug#32438: 26.1; Long command in shell-mode results in ^G being display

From: Charles A. Roelli
Subject: bug#32438: 26.1; Long command in shell-mode results in ^G being displayed
Date: Sun, 26 Aug 2018 17:46:05 +0200

> Date: Sun, 26 Aug 2018 13:48:09 +0100
> From: Alan Third <address@hidden>
> On Wed, Aug 22, 2018 at 09:48:14PM +0200, Charles A. Roelli wrote:
> > Thanks for reporting this.  It occurs for me in macOS in every version
> > of Emacs starting from 24.3, but not in version 23.4.  There must have
> > been a regression in between those two versions.
> I can’t reproduce in either 26 or the master branch. Strange.


On this box, the behavior traces back to the following commit.

  commit 2b0a91e78f83fb446cc38efb99399e83ad2cded3
  Author: Stefan Monnier <address@hidden>
  Date:   Mon Apr 12 22:07:48 2010 -0400

      Try to solve the problem of spurious EOF chars in long lines of text
      sent to interactive subprocesses.
      * sysdep.c (child_setup_tty): Do not enable ICANON any more.
      (system_process_attributes): Remove unused var `ttotal'.
      * process.c (send_process): Don't bother breaking long line with EOF
      chars when talking to ttys any more.
      (wait_reading_process_output): Output a warning when called in such
      a way that it could block without being interruptible.

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