https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69126
--- Comment #15 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Paolo Carlini from comment #2) > the regression and I'm pretty sure would not introduce other wrt the status > pre-r226234, but I don't fully understand why that is necessary, there are Wasn't the reason for removing '+' a bug report showing a similar case (#pragma diagnostic being ignored because '+' does not affect the pragma)? Cases that did work before but don't work now just worked by chance. Unrelated changes to input_location would also break them. David's fix is a step in the right direction.
