ctest: stderr silently hides errors (Visual Studio and dfly make)
When tests conducted by ctest experience test failures, stderr silently hides these test reports.
The problem appears to be limited to just two environments so far, out of many different OS configurations: tasks driven by Visual Studio, and tasks driven by DragonFly BSD's make tool. Can't remember whether that make is gmake (GNU), make (Dragonfly BSD), or bmake.