Re: [Boost-build] Fwd: Re: [C++-sig] Boost 1.69 python3 module

Subject: Re: [Boost-build] Fwd: Re: [C++-sig] Boost 1.69 python3 module
From: Stefan Seefeld (stefan_at_[hidden])
Date: 2019-02-08 13:00:51

Steven,

I'm not sure the author of the original mail is subscribed to the 
Boost-build list, so I'm cross-posting your reply.

On 2019-02-08 1:56 a.m., Steven Watanabe via Boost-build wrote:
> AMDG
>
> On 2/7/19 6:04 PM, Alex Biddulph via Boost-build wrote:
>> <snip>
>>
>>> It looks like python was built in that run.
>>> I also noticed:
>>>    project-config.jam:33: syntax error at EOF
>>> which didn't appear in the previous log.
>>> In addition, the new log shows configuration
>>> of python 2.7 instead of python 3.6.
>> It did indeed appear to build the python library in that case (although I missed a semicolon so it built python27 instead of python36).
>>
>> I corrected my error (also scrubbing the build folder again), and this time it correctly built and installed the python36 library.
>> Here is the link to the output for this build
>> https://drive.google.com/open?id=1UHzlwMfAlXlOEghqIFH41jnBlfPNAH51
>>
> Well, at least you now have a workaround.
>
>> So I went back to building everything (I left the --debug-building option on) and once again, it built everything but the python36 library. Here is the link to the build output for this build
>> https://drive.google.com/open?id=14m9Jrwz8imrEi90HGkkmglVKEI3v6FHH
>>
> That's really strange.  I have no idea why that would happen.
> There's definitely some kind of hidden global state somewhere.
> That mostly confirms my suspicion that the offending rule is
> python.require-py.  Maybe if you add /debug/ into the call to
> main-target.select-alternatives, it will reveal something:
>
>      local py-ext-alternative = [ $(py-ext-target).select-alternatives
> $(property-set) debug ] ;
>
> In Christ,
> Steven Watanabe
> _______________________________________________
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-- 
Stefan
-- 
       ...ich hab' noch einen Koffer in Berlin...