Re: [Boost-build] [boost] [boostorg/python] Building against multiple python implementations broken on 1.70 (#262)

Subject: Re: [Boost-build] [boost] [boostorg/python] Building against multiple python implementations broken on 1.70 (#262)
From: stefan (stefan_at_[hidden])
Date: 2019-04-15 20:49:15

On 2019-04-15 4:37 p.m., Peter Dimov via Boost wrote:
> Stefan Seefeld wrote:
>
>> Right. So what's your suggestion / conclusion for to resolve this ?
>
> I'm working on it. I could use a little help.

Sorry, my understanding of all that is very limited. I suspect Rene and 
Steven will be best equipped to help with those questions.

>
> What is the correct way to configure Boost.Build's `python` on Travis 
> Xenial, which supposedly has Python 2.7.15, 3.6.7, and 3.7.1 
> preinstalled?
>
> https://docs.travis-ci.com/user/reference/xenial/#python-support
>
> I tried putting
>
> Â Â  using python : 2.7 ;
> Â Â  using python : 3.6 ;
> Â Â  using python : 3.7 ;
>
> in ~/user-config.jam, but that doesn't seem to work. With 
> `python=2.7,3.6,3.7` I get
>
> /home/travis/build/boostorg/boost-root/tools/build/src/build/feature.jam:491: 
> in feature.validate-value-string from module feature
> error: "3.6" is not a known value of feature <python>
> error: legal values: "2.7"
> /home/travis/build/boostorg/boost-root/tools/build/src/build/property.jam:345: 
> in validate1 from module property
> /home/travis/build/boostorg/boost-root/tools/build/src/build/property.jam:371: 
> in property.validate from module property
> /home/travis/build/boostorg/boost-root/tools/build/src/build/build-request.jam:271: 
> in convert-command-line-element from module build-request
> /home/travis/build/boostorg/boost-root/tools/build/src/build/build-request.jam:222: 
> in build-request.convert-command-line-elements from module build-request
> /home/travis/build/boostorg/boost-root/tools/build/src/build-system.jam:774: 
> in load from module build-system
> /home/travis/build/boostorg/boost-root/tools/build/src/kernel/modules.jam:295: 
> in import from module modules
> /home/travis/build/boostorg/boost-root/tools/build/src/kernel/bootstrap.jam:139: 
> in boost-build from module
> /home/travis/build/boostorg/boost-root/boost-build.jam:17: in module 
> scope from module
>
>
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Stefan

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