Re: parts of media docs sphinx re-building every time?

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Am 10.08.2016 um 15:46 schrieb Jonathan Corbet <corbet@xxxxxxx>:

> On Wed, 10 Aug 2016 12:23:16 +0300
> Jani Nikula <jani.nikula@xxxxxxxxx> wrote:
> 
>>>> I just noticed running 'make htmldocs' rebuilds parts of media docs
>>>> every time on repeated runs. This shouldn't happen. Please investigate.  
>>> 
>>> I was unable to reproduce it here. Are you passing any special options
>>> to the building system?  
>> 
>> Hmh, I can't reproduce this now either. I was able to hit this on
>> another machine consistently, even with 'make cleandocs' in
>> between. I'll check the environment on the other machine when I get my
>> hands on it.
> 
> Just FWIW, I've been trying to find a moment to come back to this because
> I couldn't reproduce it either...
> 
> jon


Hmm, I have had problems with the relative BUILDDIR make environment, so I switched
to absolute pathname .. see my "more generic way" patch:

 htmldocs:
-	$(MAKE) BUILDDIR=$(BUILDDIR) -f $(srctree)/Documentation/media/Makefile $@
+	$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) -f $(srctree)/Documentation/media/Makefile $@

could this the reason why you can't reproduce it?

My problem was vice versa, if I called "make O=/tmp/kernel htmldocs" after
a make with normal output, the rst files has been found in Documents/output
and not regenerated in /tmp/kernel/Documents/output. 

And with "make O=/tmp/kernel clean", the rst files in Documents/output resists.

This was very confusing to me, so I changed it to absolute pathname.

--Markus--

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