https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61637
--- Comment #4 from Krishnamoorthy C <chandrakm at hotmail dot com> --- The symptoms are as follows: 1. Any exception thrown ( whether a empty throw or a number or a class object ) never reaches the catch this is happening across the code base, always, i.e. none of the catch statements are catching anything thrown. - Krishna