Re: [Boost-build] Incomplete builds with generated header + -jN

Subject: Re: [Boost-build] Incomplete builds with generated header + -jN
From: Eric Woodruff (eric.woodruff_at_[hidden])
Date: 2009-09-09 16:11:17

Hi,

Is there an open bug on this? I'm reproducing a similar problem of
incomplete builds using the bjam and boost-build from boost 1.40.

I have a validation script that copies my sources to a new sandbox,
performs a build and then performs a -n build to make sure the previous
build was complete. There are around 35,000 targets (with all of the
boost headers, etc), 360+ need to be built from a clean state and about
39 of them are left unbuilt after the first pass. The validation does
succeed with -j1.

Thanks,

Eric

Jurko Gospodnetić wrote:
>    Hi Mark.
>
>   
>>>> I suspect you might either have to produce a self-contained example,
>>>> or debug this yourself, like by adding prints in make*.c that explain
>>>> in more detail what happens with the file that is not rebuilt.
>>>>         
>>> Yes, I thought that would be the case :-(.  I'll keep digging.....
>>>       
>> I did keep digging for quite a while, but didn't manage to get to the
>> bottom of it.  In the end I worked round the problem by adding code to
>> compare the value of counts->updating in make.c with the value of
>> counts->made in make1.c, and if there's an underbuild then spawn jam
>> again with the same arguments.  It's pretty nasty, but it works.
>>     
>
>    Any chance of you producing a small self-contained example 
> reproducing the problem? And possibly post it as a defect report/feature 
> request on http://zigzag.cs.msu.su/boost.build so it does not get lost?
>
>    Thanks.
>
>    Best regards,
>      Jurko Gospodnetić
>
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