[Boost-build] question(s) about bjam code IV

Subject: [Boost-build] question(s) about bjam code IV
From: Stefan Seefeld (stefan_at_[hidden])
Date: 2017-10-27 03:26:08

Hi Steven,

now I'm looking into target-specific variables. I have added a few
callbacks to bjam to be able to set and query target-specific variables
at different stages of the build.

I'm a bit puzzled right now, as the variables I set earlier are no
longer visible at some later point. It seems this is related to the
various "pushsettings" / "popsettings" etc. invocations that happen
throughout the bjam code.

Could you please briefly explain what those do, and why they are needed
? I'm not using modules, i.e. everything I do happens in the context of
the "root module". Do I still need to push and pop settings ?

Thanks,

Stefan

-- 
      ...ich hab' noch einen Koffer in Berlin...