From jengelh@inai.de  Tue Jan  8 17:07:12 2013
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Date: Tue, 8 Jan 2013 17:07:12 +0100 (CET)
From: Jan Engelhardt <jengelh@inai.de>
To: Bernard Cafarelli <voyageur@gentoo.org>, 84@bugs.x2go.org, 
    x2go-dev@lists.berlios.de
Subject: Re: [X2Go-Dev] Bug#84: Hardcoded -O3 in CFLAGS
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On Tuesday 2013-01-08 13:23, Bernard Cafarelli wrote:

>Regarding the optflags patch, is it possible to drop altogether the 
>hardcoded "-O3" in C/CXXFLAGS in the various configure.in? This would 
>remove the need for 4 autoreconf when using another optimization level

Why would autoreconf be rerun if you use ./configure CFLAGS=-O2 
CXXFLAGS=-O2?