https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86907
--- Comment #10 from Jürgen Reuter <juergen.reuter at desy dot de> --- (In reply to Thomas Koenig from comment #9) > This makes the error message a litte bit clearer, to make sure > it is understood that this is the compiler's fault, not the user's. > > However, I cannot reproduce the original problem. Dear Thomas, I didn't check your changes (but they only modify the warning message as far as I understand). I already confirmed to Dominique that for the code I submitted (and also our full code) the warning does not appear any more.