Re: `message' not outputting the newline "atomically"

[Paul Eggert]

On 6/20/19 6:32 AM, Stefan Monnier wrote:
> Rather than fiddle with the line-buffering, how hard would it be to
> change our code such that there's a single call to `fprintf` (or
> whichever function it is we use in that code) which prints both the
> "hello" and the "\n"?

Reasonably hard. That's what I tried to do first, and it's not nearly as 
easy.

I also wrote a patch in which Emacs fully-buffers stderr but calls 
'fflush_unlocked (stderr)' at strategic spots. That will also work and 
is reasonably easy to do, but it's a more-intrusive patch.