Hi, it seems that commit c0d2d29284389a1e7f924583ff6bd59128b9436b Author: Gennadiy Rozental <rogeeff@gmail.com> Date: Thu Oct 1 03:38:44 2015 -0400 -- is required before extra test module arguments has at least broken my Boost.Build driven tests, as I now get: Usage: my_test-clang38 [Boost.Test argument]... -- [custom test module argument]... For detailed help on Boost.Test parameters use: my_test-clang38 --help or my_test-clang38 --help=<parameter name> for every test which has extra command line arguments. I strongly suspect this breaks some libraries in Boost itself which e.g. need to read some input files. Right now I'm lost at how to fix this in Boost.Build's testing.jam as it seems we somehow have to specify different arg sets. And how to get "--" into the commandline at all. And in the light of the ongoing c++11/03 discussion it would have been nice to issue a warning before commiting breaking and/or behavioural changes. Any ideas? Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! * voice: ++49 4257 300 ! Fährstraße 1 * fax : ++49 4257 300 ! 31609 Balge/Sebbenhausen * jhunold@gmx.eu ! Germany