Can't define features in toolset files

From: David Abrahams (dave_at_[hidden])
Date: 2005-06-11 14:36:16

Well, you can, but then any Jamfile that uses that feature, even
conditionally (e.g. <toolset>msvc:<asynch-exceptions>on) becomes
totally nonportable to any environment where the toolset isn't
configured. The validation system barfs when it comes across a
feature it (quite naturally) doesn't know about.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com