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Re: M4sh tests 77 and 78 vs /bin/sh -> dash

From: Sébastien Hinderer
Subject: Re: M4sh tests 77 and 78 vs /bin/sh -> dash
Date: Fri, 13 Mar 2020 18:48:58 +0100

Bob Friesenhahn (2020/03/12 16:04 -0500):
> One reason why some projects are discarding use of Autoconf (and moving to
> CMake and Meson/Ninja) is due to how long it takes to execute a configure
> script.  Given modern multicore CPUs, it often takes as much (or more) time
> to run the configure script than to compile the software.  If configure can
> select the fastest shell which works reliably, then Autoconf's reputation
> will improve.

Is the time spent in the shell such a big part of configure's total
execution time?

I am also wondering how widely config.status is known by non-experts. I
guess in the situation where the time spent ocnfiguring matters, e.g.
when you are developing, running ocnfig.status would be enough.


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