Hello Jean-Dominique Frattini, I am not involved in packaging any of these packages, but I noted that you opened the last three days nearly the same issue against three different packages? What are you trying to achive that way? And you noted versions contained in current Buster, but you claim it is Stretch? You write it is a regression - do you know the package versions or the date when it was working like expected? Also giving an example application that triggers that error message could maybe make the bug report more attractive to get some one having the matching hardware looking at it.
Kind regards, Bernhard