[Boost-users] How to apply -Winline with Bjam v2

I am using gcc 4.0.2 and Boost.Jam Version 3.1.11. I've been told that the way to determine if an inline method is actually inline by the compiler is to compile with the "-Winline" option. When this is done, a warning is emmitted when a sugguested inline method wasn't inlined. I'm using bjam v.2. I have not found the equivalent to "features.jam" in the v2 documentation, so I tried "<cxxflags>-Wonline", which I got from /tools/build/v1/features.jam. This doesn't work. What is the way to do it in Bjam v2?