12.1 release symbol incompatibility?

[Warner Losh]

On Wed, Sep 18, 2019, 10:05 PM Sean Bruno <sbruno at freebsd.org> wrote:

> If one installs 12.1 and tries to run a 12.0 release package (postgresql
> server for instance), it fails due to a missing symbol:
>
>  # service postgresql start
> /usr/local/bin/pg_ctl: Undefined symbol "stat at FBSD_1.5"
>
> I think this is a bug as we are supposed to support this kind of thing,
> right?
>

This should work... we have to tack this to ground before we release 12.1.
It would be great if we could get a small, reproduction test case. I think
kib@ is in the best position to debug this quickly.

Warner

sean
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