Re: Add "-Wimplicit-fallthrough" to default flags

On 2020-May-13, Tom Lane wrote:

> Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> >> I fear that is going to mean that we revert this patch.
> 
> > Or we can filter-out the -Wimplicit-fallthrough, or change to level 3,
> > for bison-emitted files.
> 
> Let's just go to level 3 overall (and revert the changes you made for
> level 4 compliance --- they're more likely to cause back-patching
> pain than do anything useful).

Ok.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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