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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: stderr vs start-process
Date: Mon, 23 Apr 2007 12:02:58 +0300
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To: Stephen Leake <stephen_leake@member.fsf.org>
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> From: Stephen Leake <stephen_leake@member.fsf.org>
> Date: Tue, 17 Apr 2007 20:13:20 -0400
> 
> The help string for `start-process' does not say what happens to
> stderr for the spawned process. It just says:
> 
>      Process output goes at end of that buffer, unless you specify
>      an output stream or filter function to handle the output.
> 
> I tested this (on Windows XP) and it seems both stderr and stdout go
> to that buffer. I tried reading the C code in process.c, but quickly
> got lost.
> 
> I suggest that the help string be modified to:
> 
>      Process output (both standard error and standard output) goes at
>      end of that buffer, unless you specify an output stream or filter
>      function to handle the output.

Done.

> Is there a way to separate standard error from standard output for the
> spawned process? That would probably be useful in some situations.

I added a sentence about this to the doc string.