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Re: ccache and autotools

From: Alexandre Duret-Lutz
Subject: Re: ccache and autotools
Date: Thu, 14 Nov 2002 12:15:38 +0100
User-agent: Gnus/5.090008 (Oort Gnus v0.08) Emacs/20.7 (i386-debian-linux-gnu)

>>> "Jean-Eric" == Jean-Eric Cuendet <address@hidden> writes:


 Jean-Eric> In fact, ccache tells in logfile that -MT is not supported.
 Jean-Eric> What does -MT do?

Dependency tracking, see the GCC 3.x manual.

 Jean-Eric> And why dows autoconf use it? Can we not use it safely?

Automake uses -MT for dependency tracking.   But Automake knows many
way to track dependencies, including some that don't use -MT; so I'm 
surprized that it choose this mode (called "gcc3") if ccache doesn't
support it.

How do you configure your project to use ccache?  Do you tell
./configure that you want to use ccache as the compiler?  (you should).
Alexandre Duret-Lutz

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