Re: [Boost-users] Custom build of Python3 not picked up by Boost.Build

Subject: Re: [Boost-users] Custom build of Python3 not picked up by Boost.Build
From: Juraj Ivančić (juraj.ivancic_at_[hidden])
Date: 2016-08-16 11:09:11

On 16-Aug-16 13:37, Matthieu Brucher wrote:
> Hi,
>
> As I need a build of Python3 compatible with VS2012, I built it from
> scratch and installed it in a _INSTALL folder, following a tutorial online.
> Now, I want to use that Python3 with Boost.Python, so I did this in my
> use-config.jam:
> using python : 3.4 : D:/Tools/Python-3.4.5/_INSTALL/python.exe :
> D:/Tools/Python-3.4.5/_INSTALL/include :
> D:/Tools/Python-3.4.5/_INSTALL/libs ;
>
> And then:
>
> .\bootstrap.bat --with-python=D:\Tools\Python-3.4.5\_INSTALL
> --with-python-version=3.4 --python-buildid=3
> which failed.

bootstrap.bat is used to bootstrap Boost.Build. Unless you're planning 
to use Python Port of Boost.Build (and it seems that you're not - it has 
nothing to do with Boost.Python and is not officially supported anyway) 
then just run bootstrap.bat without parameters. It doesn't really matter 
which MSVC toolset bootstrap.bat detects, as long as it produces working 
b2.exe.

Once you have it replace the call above by replacing bootstrap.bat with 
b2.exe.

> The includes are found properly, but the link is floawed:
>
> LINK : fatal error LNK1104: cannot open file 'python34.lib'
>
> The library is in D:/Tools/Python-3.4.5/_INSTALL/libs, but could not be
> found according to the log.
> Also, something strange:
> D:\Tools\boost_1_60_0\tools\build\src\engine>.\bootstrap\jam0 -f
> build.jam --toolset=vc14 "--toolset-root=C:\Program Files
> (x86)\Microsoft Visual Studio 14.0\Common7\Tools\..\..\VC\ "
> --with-python=D:\Tools\Python-3.4.5\_INSTALL --with-python-version=3.4
> --python-buildid=3
>
> The retrieved toolset is wrong, as explicitely asked for VS2012 aka 11.0
> int he user-config.jam and I'm running it from a VS2012 x64 native tools
> command prompt.
>
> Couldn't find any help online, so the best is to ask the Boost community!

user-config.jam only comes into play with b2, it is not used by bootstrap.