Re: -Wformat-signedness

Peter Eisentraut <peter.eisentraut@enterprisedb.com> writes:
> 1. enums are unsigned by default in gcc, so all those internal error 
> messages "unrecognized blah kind: %d" need to be changed to %u.

Do we have reason to think that that is true in every C compiler?
My own preference for this would be to leave the messages as-is
and add explicit "(int)" casts to the arguments.  There are some
fraction of these that are like that already.

            regards, tom lane