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

Alvaro Herrera <alvherre@2ndquadrant.com>

From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andy Fan <zhihui.fan1213@gmail.com>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>, Julien Rouhaud <rjuju123@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2020-05-13T16:04:40Z
Lists: pgsql-hackers
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/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



Commits

  1. Dial back -Wimplicit-fallthrough to level 3

  2. Add -Wimplicit-fallthrough to CFLAGS and CXXFLAGS

  3. Suppress -Wimplicit-fallthrough warning in new LIMIT WITH TIES code.

  4. Support FETCH FIRST WITH TIES