[yocto] [bitbake] Failure to compile UltraJson, LMDB and Netifaces python modules recipes for Krogoth.

[Khem Raj]

On Tue, Dec 20, 2016 at 10:54 PM, Mateusz Orzoł
<mateusz.orzol at 3cityelectronics.com> wrote:
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> W dniu 2016-12-20 o 10:46, Mateusz Orzoł pisze:
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> W dniu 2016-12-20 o 00:43, Khem Raj pisze:
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> On Mon, Dec 19, 2016 at 1:46 PM, Mateusz Orzoł
> <mateusz.orzol at 3cityelectronics.com> wrote:
>>
>> Hi everyone,
>>
>> I am migrating my old Yocto image from kernel 3.8 to 4.1 on the Intel
>> Quark based platform. After dealing with some SPI driver issues now I've
>> encountered some strange bitbake behaviour. My web application requires
>> UltraJson , LMDB and Netifaces modules. After running bitbake  I am getting
>> a lot of undefined reference errors. In all three cases pretty similar.
>> Exemplary log for python-ujson is here: http://pastebin.com/8ms9PgnY . It
>> seems like the python environment wasn't linked properly but many other
>> python recipes have no problem with compiling.
>>
>> The python-ujson recipe comes from here
>> https://layers.openembedded.org/layerindex/recipe/49510/. In  previous
>> distribution with kernel 3.8 it was working without any problem.
>>
>> Have you got any idea what could be wrong or what should I check first?
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>
> The error seems to have nothing to do with kernel version. Are you upgrading
> the whole of yocto framework from one release to another ? and if yes from
> which version to which new version.
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>
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> I am upgrading from 1.4.2 Dylan version to Krogoth. Firstly I've prepared
> clean Krogoth image which worked fine. Now I am adding necessary recipes and
> packages one by one and currently the only problem I've encountered is the
> mentioned one.
>
> Hi,
> W have found found quick fix for this.  The errors disappeared when all the
> build flags were cleared in mentioned python modules recipes. It means
> TARGET_CFLAGS = "" LDFLAGS = "" CFLAGS = "" in module .bb file. It was
> checked on the device that modules are visible in python and they work. I
> don't know why this helped and also what was causing the issue. Do you have
> any clues what was wrong and how to fix it in proper way?

Can you post the exact change ? perhaps there is issue in Makefile
environment that
bitbake is handing off to the makefiles of this component. There
change in this area
in OE recently.

>>
>> Thank you for your help in advance,
>>
>> Mateusz
>>
>>
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