Hello all, On the regression test site: http://www.boost.org/development/tests/develop/developer/contract.html How do I differentiate between the following? Sandia-clang-4.0-c++11 Sandia-clang-4.0-c++14 Sandia-clang-4.0 They all have the same toolset name clang-gnu-4.0.1 but they have different compiler options (C++11, C++14, original C++ standard). My tests are expected to fail only on Sandia-clang-4.0 but not on the first 2... I need different toolset names to selectively mark the failure expected in expected-failure-markup.xml: <mark-unusable> <toolset name="WHAT_SHALL_I_PUT_HERE?"/> <note author="Lorenzo Caminiti"> Most tests use C++11 lambda functions and variadic macros (even if technically the library itself does not require C++11). </note> </mark-unusable> Other toolset using ...~c++11, ...~c++1y prefixes for this, but Sandia does not. Thanks a lot. --Lorenzo