On Mon, Feb 3, 2020 at 4:12 AM M. Dodson <md403@cam.ac.uk> wrote:

Thanks. I’ve tried this, but may be putting my user-config.jam file in the wrong place or invoking my toolset incorrectly (or, more likely, both).

On 2 Feb 2020, at 17:32, Rene Rivera via Boost-build <boost-build@lists.boost.org> wrote:

import feature ;
feature.extend os : rtems ;
feature.extend target-os : rtems ;
feature.extend host-os : rtems ;

I’ve added this to my user-config.jam. I left the file in $BOOST_ROOT/tools/build/example, because the file says it can be left there...

That was a misunderstanding of the in-place comment. That applies only when building the examples in that directory. For general use you need the user-config.jam to be in your HOME dir. Or you can put the same code in project-config.jam or site-config.jam (https://boostorg.github.io/build/manual/master/index.html#bbv2.overview.configuration) as nee

-- Rene Rivera
-- Grafik - Don't Assume Anything
-- Robot Dreams - http://robot-dreams.net