In the regression tables the following warnings are coming out of math config. I'm trying to understand what this means given that 1) the tests compile and execute fine, 2) the deadline is up, and 3) several of the cases are compiled in c++11 mode (is it pre conformance bc it's clang3.4?). I've seen this warning in other places that include lexical_cast as well. So sure I could go and define the macro to quiet this, but seems like that should be done closest to the source. In other words maybe math should only tell us that in headers that have a real issue? Or will this soon be a real issue? ../boost/math/tools/config.hpp:42:9: warning: CAUTION: One or more C++11 features were found to be unavailable [-W#pragma-messages] ../boost/math/tools/config.hpp:43:9: warning: CAUTION: Compiling Boost.Math in pre-C++11 conformance modes is now deprecated and will be removed from March 2021. [-W#pragma-messages] ../boost/math/tools/config.hpp:44:9: warning: CAUTION: Define BOOST_MATH_DISABLE_DEPRECATED_03_WARNING to suppress this message. [-W#pragma-messages] Full examples https://www.boost.org/development/tests/develop/developer/date_time.html https://www.boost.org/development/tests/develop/output/teeks99-dkr-dc3-4-98-...