If option catch_system_errors has value "no" the Unit Test Framework does not attempt to catch asynchronous system failures (signals on *NIX platforms or structured exceptions on Windows). This can be used for test programs executed within an IDE or to get a coredump for a stack analysis. See usage recommendations pages for more details.
Boolean with default value no.
The Unit Test Framework can be built with flag BOOST_TEST_DEFAULTS_TO_CORE_DUMP in which case default changes to yes