Re: pkg/59028: qt5-qtwebkit doesn't build

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

> Date: Sat, 25 Jan 2025 13:59:02 +0000
> From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
> 
> Perhaps less invasive: icu header files seem to have a
> U_HIDE_DRAFT_API macro; defining it suppresses a lot of this.
> 
> Not all of this -- unicode/uset.h still uses <string_view> in places
> -- but it might be an upstream bug that any parts are missed, so maybe
> we could patch those parts of icu instead of forcing C++17.

Correction -- unicode/uset.h uses U_HIDE_DRAFT_API too; I just didn't
manage to feed -DU_HIDE_DRAFT_API properly into the command line.  So
maybe we can get by with

CXXFLAGS+=	-DU_HIDE_DRAFT_API

Trying a build with this, will have results in an hour or three, looks
like a big package.