https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64548
--- Comment #5 from yuta tomino <demoonlit at panathenaia dot halfmoon.jp> --- Hello, Simon. I'm glad to look at this report. I have a similar experience like this. The trigger of mine was not "private with" but a nested package in the spec of Ada.Exceptions. I should think it's useless information, but I would write, just in case.