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Re: Autoconf 2.63b test release

From: Robert Schwebel
Subject: Re: Autoconf 2.63b test release
Date: Tue, 31 Mar 2009 15:13:07 +0200
User-agent: Mutt/1.5.18 (2008-05-17)

On Tue, Mar 31, 2009 at 06:37:45AM -0600, Eric Blake wrote:
> Highlights (in no particular order): Configure scripts are now built using
> shell functions, which leads to much smaller configure scripts.  Execution
> time of both autoconf and built configure scripts have been improved.
> Autotest added an experimental feature for parallel testsuite execution.
> AC_REQUIRE has been made smarter, and fixed an out-of-order expansion bug
> that had been present for more than 8 years.  See the NEWS excerpt below
> for more details, and a couple of things to note when upgrading.

How is this supposed to be used? This is a simple hello world program:

address@hidden:tmp$ ls -l test-2.61/configure test-2.63b/configure
-rwxr-xr-x 1 rsc rsc 741280 Mar 31 15:00 test-2.61/configure
-rwxr-xr-x 1 rsc rsc 705596 Mar 31 15:02 test-2.63b/configure

-> 5% size reduction

time (./configure && make) -> real 7.93 s (with 2.61)
                                   7.39 s (with 2.63a)

Do I have to do something special to get the better execution time?

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