libpsl doesn't build on older versions of Mac OS X because it depends on python38

[Jeffrey Walton]

On Wed, Apr 15, 2020 at 3:53 AM Christian Calderon
<calderonchristian73 at gmail.com> wrote:
>
> libpsl is one of curl's dependencies, meaning curl can't be built (and thus any port depending on curl) on any version of OS X before Snow Leopard.  I've looked a bit into libpsl and it seems that it doesn't actually require python38 to build. Is this correct? If it is, how can we get libpsl to build with python37 instead?

Related, Wget also uses libpsl.

Jeff