[Boost-build] Switch between build style.

Subject: [Boost-build] Switch between build style.
From: alainm (alain.miniussi_at_[hidden])
Date: 2016-10-17 10:38:00

Hi,

I need to be able to switch between C++11 build and old style C++ build.
Is there an easy way to do that ?
The object files should be dropped in different directories and b2 
should understand that if the file was not compiled with the same 
option, it should be rebuilt (and that should be propagated to the 
dependencies).

Basically I need something similar to what I would get using 2 different 
build dirs with CMake.

Thanks

-- 
Alain Miniussi
Pole Génie Logiciel Scientifique
Observatoire de la Côte d'Azur
Blv de l'Observatoire, Nice