[C++-sig] [Boost-build] Boost 1.69 python3 module

[Alex Biddulph]

Ok, I played around a bit more.

It was indeed configuring python twice. Likely because the bootstrap.sh 
script adds this bit to project-config.jam

# Python configuration
import python ;
if ! [ python.configured ]
{
     using python : 3.6 : /nubots/toolchain ;
}

which results in a non-working python configuration due to the 
incorrectly determined include path "{prefix}/include/python3.6". The 
correct include path should be "{prefix}/include/python3.6m". This was 
the root cause of my problem, which is why I added

using python : 3.6 : "{prefix}/bin/python3" : 
"{prefix}/include/python3.6m" : "{prefix}/lib" ;

to the end of project-config.jam, hoping it would override the previous 
configuration and use the correct paths for my installation. Which 
resulted in this discussion.


On 19/2/19 3:24 pm, Steven Watanabe wrote:
> AMDG
>
> On 2/18/19 9:09 PM, Alex Biddulph wrote:
>> Not sure what happened there, I must have dirtied my build environment.
>>
>> I cleaned everything up and ran it again. Here is the output.
>> https://drive.google.com/open?id=1u_8KHpjuAC2Cm0jGrVOdGvaqxFtslhNm
>>
> The problem is that you are configuring python twice.
> Please make sure that you only have one `using python`
> statement in your project-config.jam (or any other
> configuration file).  This is a really obscure failure
> mode and I'll look into making a better message.  You
> might file a ticket at https://github.com/boostorg/build/
>
> In Christ,
> Steven Watanabe