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RFE: option to avoid autoreconf recursion

From: Bruno Haible
Subject: RFE: option to avoid autoreconf recursion
Date: Wed, 11 Jan 2006 19:30:46 +0100
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For gnulib-tool, it would be useful if 'autoreconf' had an option
  --no-recurse or --no-recursion or --no-recursive
that would avoid recursive self-invocations of autoreconf.

The use case is: gnulib-tool creates many directories with each a and and configure file, and on top of that
an extra and and configure file. When the
subdirectories are created, autoreconf is already executed on such a
subdirectory. Therefore recursion is not needed.

Currently, on a slow machine, "gnulib-tool --create-megatestdir" takes
ca. 4 hours of CPU time when using aclocal/autoconf/automake for the top
level, and ca. 7-8 hours when using autoreconf. autoreconf is just redoing
useless recomputations.


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