[Boost-build] Specifying toolset with different address-model

Subject: [Boost-build] Specifying toolset with different address-model
From: Edward Diener (eldiener_at_[hidden])
Date: 2015-06-24 00:20:41

Given compiler XXX, version n.n.n, which has a different executable path 
depending on whether it is the 32-bit or 64-bit compiler ( this is the 
case for mingw-64 distros ), how do I specify separate 'using' toolsets 
statements in my user-config.jam for each path ?

using gcc : 5.1 : path-to-32bit-version-of-compiler/g++ ;
using gcc : 5.1 : path-to-64bit-version-of-compiler/g++ ;

but now I have duplicate 'using' statements for the same 
compiler/version so that if I invoke:

b2 toolset=gcc-5.1 address-model=32 ( or address-model=64 )

it is impossible to distinguish between the two gcc-5.1 toolsets.