Hi, This is a repost from boost-build mailing list. It failed to catch an attention. Would appreciate any help any this problem. Essentially my question is that can I specify a symmetric feature to be non-propagated. To elaborate: Is it possible in bjam to restrict target directory to generators features? I can better state the problem with an example. Lets say I have two generators G1 (maps .foo to .g1), G2 (maps .g1 to .g2), with corresponding feature F1, F2. If I import both generators than then the target directory is bin/debug/F1-f1/F2-f2 even if I am activating G1 generator. Ideally what I would like is the output be restricted by the generators features i.e let say I have g1 xx.g1 : xx.foo : <F1> f1 ; g2 xx.g2 : xx.g1 : <F2>f2 <F1>f1 ; then the target for g1 should be /bin/debug/F1-f1/, and target for g2 should be bin/debug/F1-fi/F2-f2 and it should look for g1 in directory bin/debug/F1-fi/F2-f2. Is there a way to configure bjam to adopt the later policy?. Thanks. Sandeep