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Re: patch to support output synchronization under -j

From: Paul Smith
Subject: Re: patch to support output synchronization under -j
Date: Thu, 14 Apr 2011 13:29:09 -0400

On Thu, 2011-04-14 at 11:01 -0400, David Boyce wrote:
> On Tue, Apr 12, 2011 at 1:46 PM, David Boyce <address@hidden> wrote:
> > So I've made a proof-of-concept patch
> > against 3.82.90 which seems to work without that overhead and my
> > question is, would this be of interest towards 3.83?
> Ping?
> The original patch attachment was made by hand using "diff -u" and I
> had some trouble applying it myself. So here's a version created with
> "cvs -q diff -uN" which should work better.

I've looked at it and as a concept I don't have too many issues with it
(although I'd like to hear from the ports) but I think there some
outstanding issues that should be considered.

One example: I think saving stdout and stderr to different files and
then printing them separately is problematic; consider if your recipe
prints lots of information lines, with errors (to stdout) interspersed.
If you throw all the errors to the end you lose a lot of context.

 Paul D. Smith <address@hidden>          Find some GNU make tips at:
 http://www.gnu.org                      http://make.mad-scientist.net
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist

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