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Re: make -q and maintainer-makefile issues?

From: Eric Blake
Subject: Re: make -q and maintainer-makefile issues?
Date: Thu, 11 Aug 2011 12:46:34 -0600
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On 08/11/2011 12:28 PM, Paul Eggert wrote:

* modules/configmake (configmake.h): Update configmake.h's time stamp
even if the file does not change.  Otherwise, 'make -q' fails.
Problem reported by Simon Josefsson in

Ouch. This goes against the idea that configmake.h should not change timestamps if it does not change contents, since it can result in a lot of needless recompilations. I think we need a better solution that involves a stamp file; where C programs that depend on the definitions depend on configmake.h, but make rules that ensure configmake.h is correct instead depend on the stamp file rather than configmake.h, and where the stamp file always has an up-to-date timestamp any time the rules get rerun even if configmake.h does not change.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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