Re: [boost] [1.41] mpi + python + multiple variants

Subject: Re: [boost] [1.41] mpi + python + multiple variants
From: Vladimir Prus (vladimir_at_[hidden])
Date: 2009-11-17 02:11:36

David Abrahams wrote:

> 
> on Mon Nov 16 2009, Vladimir Prus <vladimir-AT-codesourcery.com> wrote:
> 
>> There was a report on IRC that 1.41 beta fails to build with the following command:
>>
>> ./bjam threading=single,multi --with-python --with-mpi --layout=versioned
>>
>> because Boost.Build reports target name clash on stage/lib/mpi.so. And sure it does.
>> The mpi Jamfiles specify that a Python extension called 'mpi' should be built if
>> Python is available. However, nothing adjusts the name of python extension, so
>> ST and MT variants get the same name, and clash.
>>
>> For all I know, this problem was there all the time, so holding 1.41 for it is not
>> necessary. But still would be nice to fix, and for that, I need an opinion from
>> either MPI or Python experts here.
>>
>> 1. Shall the name of extension module be adjusted? If so, how? I doublt that
>> Python users will jump with joy if asked to do 'import mpi-mt-gd-gcc34'.
>> 2. Shall a specific variant be pinned?
>> 3. Anything else?
> 
> Can't we build both variants with the same name but keep them in
> separate subdirectories?

We actually do *build* them in different directories, but what to do on
install? Create stage/lib/debug/threading-multi/mpi.so ?

- Volodya