bug#7842: acknowledged by developer (control message for bug 7842)

[Eli Zaretskii]

> From: Jameson Graef Rollins <jrollins@finestructure.net>
> Cc: rgm@gnu.org, 7842@debbugs.gnu.org
> Date: Fri, 22 Feb 2013 09:04:23 -0800
> 
> >      It is impossible to separate the standard output and standard error
> >   streams of the subprocess, because Emacs normally spawns the subprocess
> >   inside a pseudo-TTY, and a pseudo-TTY has only one output channel.  If
> >   you want to keep the output to those streams separate, you should
> >   redirect one of them to a file--for example, by using an appropriate
> >   shell command.
> 
> I don't believe this at all.

Which part?

> Obviously the command can separate stdout From stderr or it wouldn't
> be able to capture stdout to a buffer and separately redirect stderr
> to a file.

The text above says that it is impossible to separate them without
going through files.  In a pipe, there's only one channel, so you can
either have stderr redirected to the same place as stdout (in which
case they are not separated), or put one of them on a file.  And you
clearly said you don;t want any files.

> Come on, guys.  Let's have a serious discussion here.  No more smoke
> blowing.

I don't know whether anybody is blowing smoke here, but I'm certainly
not doing that.