Hello, I'm having trouble assembling Jamfiles.v2 correctly: Let's assume i have following hierarchy: ~ - devel $DEVEL_ROOT +- boost $BOOST_ROOT +- mt +- flog Jamfile.v2, Jamroot +- doc +- test +-test1 - Jamfile.v2 . +-testN - Jamfile.v2 Q1: How do I include headers/project with absolute path in flog/test/test1/Jamfile.v2? <include>$DEVEL_ROOT or <library>$DEVEL_ROOT/mt/mt Right now it's relative to ~/devel/flog. Q2: How do I include something conditionaly based on threading model? something like if (threading==multi) { include project mt } To be honest, as a new user i'd appreciate some helloworldish project sample, from which the usage of building framework should be obvious. Many thanks, Mojmir