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output of parallel running configure scripts (GCC)

From: Ralf Wildenhues
Subject: output of parallel running configure scripts (GCC)
Date: Sun, 13 Sep 2009 19:12:05 +0200
User-agent: Mutt/1.5.20 (2009-08-09)

Autoconf proper doesn't support it out of the box, but packages like GCC
(and others that use multilib support) may run several configure scripts
in parallel (each with separate config.cache files, out of necessity for
independent reasons).  The output of such a build is quite cluttered and
hard to read, as the
  checking malloc.h presence...

and the eventual

are not output together.  Now that we use shell functions, this could
probably be fixed even without a lot of extra bloat in the configure
script by delaying the output of AC_MSG_CHECKING until the AC_MSG_RESULT
and printing it with one command.  It could be enabled with some switch.

Anyway, it's not very urgent or anything, merely a "would be nice to
have" thing.  Or I'll try it out in gcc/config/override.m4 eventually.


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