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From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: "biannm@cn.fujitsu.com" <biannm@cn.fujitsu.com>
Date: Tue, 05 Aug 2014 10:44:27 +0100
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Cc: "poky@yoctoproject.org" <poky@yoctoproject.org>
Subject: Re: [Question]Does poky rebuild source when only makefile was modified
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On Tue, 2014-08-05 at 05:57 +0000, biannm@cn.fujitsu.com wrote:
> If $B != $S is supported, there is not a problem.
> When we rebuild a recipe where $B != $S is not supported, although tasks will be redone, 
> the source files will not be rebuild if we just change the libdir.

It depends on the Makefiles. Some work well, some don't.

> Does you mean that we just make this recipe to support  $B != $S in this case.

Yes, that would be one way to solve the problem.

Cheers,

Richard