[Boost-build] Determining compiler version

Subject: [Boost-build] Determining compiler version
From: Edward Diener (eldiener_at_[hidden])
Date: 2010-10-07 09:18:09

In my jam file I need to set certain options for a particular 
compiler-version while setting different options for another version of 
the same compiler. I do understand that one can use conditional 
requirements to do this.

How does the build system know what compiler-version is actually being 
run ? I know that the end-user can choose a toolset equivalent to a 
compiler-version but how does the build system actually know that the 
executable being invoked in the PATH ( on Windows ) is actually that 
compiler-version as opposed to another compiler-version for the same 
compiler ? Does compiler-version information have to be set in 
user-config.jam for the compiler-version to be used by the build system ?