Robert Haas <> writes:
> On Sat, Feb 18, 2017 at 10:40 PM, Tom Lane <> wrote:
>> It seems like it would be quite simple and reliable to apply a patch
>> that inserts "(void) yyg;" into this function.  (Which, indeed, is
>> essentially how flex 2.5.36 and later fixed it.)

> Sounds fine as a master-only fix, but I would vote against back-patching.

Agreed.  I see no need to change this in stable branches; having -Werror
everywhere is mainly of value for development.

                        regards, tom lane

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