frei0r 2.5.1

Drop ancient gcc support.

https://github.com/dyne/frei0r/releases/tag/v2.5.1

https://github.com/dyne/frei0r/releases/tag/v2.5.0

Rename potentially offensive/insensitive variables in Makefiles.

https://github.com/dyne/frei0r/releases/tag/v2.4.0

Adds new filters filmgrain and gateweave

https://github.com/dyne/frei0r/releases/tag/v2.3.3

Minor bugfix release:
- Check that the C++11 future feature is supported
- Fix nosync0r crash when hsync is negative
- Fix alphaspot transition param
- Update authors and trigger fix release

https://github.com/dyne/frei0r/releases/tag/v2.3.1

Reported by:	portscout!

Split cairo-dependent plugins out into graphics/frei0r-plugins-cairo.

Shift pkg-plist and several variables out into the slave ports for
easier maintainence, including PORTREVISION to facilitate usage of
PORTREVISION bump scripts.

Convert "extra" patches into regular patches for easier future
maintainence.

Ensure optional plugins are the same version as the frei0r base.

https://github.com/dyne/frei0r/releases/tag/v2.3.0

PR:		272045 [1]
Reported by:	Olivier Duchateau <duchateau.olivier@gmail.com> [1]

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

This commit implements such a proposal and moves one of the WWW: entries
of each pkg-descr file into the respective port's Makefile. A heuristic
attempts to identify the most relevant URL in case there is more than
one WWW: entry in some pkg-descr file. URLs that are not moved into the
Makefile are prefixed with "See also:" instead of "WWW:" in the pkg-descr
files in order to preserve them.

There are 1256 ports that had no WWW: entries in pkg-descr files. These
ports will not be touched in this commit.

The portlint port has been adjusted to expect a WWW entry in each port
Makefile, and to flag any remaining "WWW:" lines in pkg-descr files as
deprecated.

Approved by:		portmgr (tcberner)

This was missed in the upgrade of graphics/opencv.

Reported by:	VVD

A big Thank You to the original contributors of these ports:

  *  "Waitman Gobble" <uzimac@da3m0n8t3r.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Abel Chow <ozsanh45vds001@sneakemail.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Ade Lovett <ade@lovett.com>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Hayward <xelah@xelah.com>
  *  Alex Ivasyuv <siegerstein@pochta.ru>
  *  Alex Samorukov <samm@os2.kiev.ua>
  *  Alexander Gromnitsky
  *  Alexander Kojevnikov <alexander@kojevnikov.com>
  *  Alexander Logvinov <ports@logvinov.com>
  *  Alexander Nedotsukov <bland@FreeBSD.org>
  *  Alexander Nedotsukov <bland@mail.ru>
  *  Alexander Y. Grigoryev <alexander.4mail@gmail.com>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alonso Cardenas Marquez <acm@FreeBSD.org>
  *  Anatoliy Dmytriyev <tolid@plab.ku.dk>
  *  Anatoly Borodin <anatoly.borodin@gmail.com>
  *  Anders Nordby <anders@fix.no>
  *  Andras Horvath <han@log69.com>
  *  Andreas Daehn <ad001@uni-rostock.de>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Andrey Slusar <anray@FreeBSD.org>
  *  Andrey Zakhvatov
  *  Anes Mukhametov <anes@anes.su>
  *  Anonymous <swell.k@gmail.com>
  *  Anton Berezin <tobez@FreeBSD.org>
  *  Antonio Carlos Venancio Junior (<antonio@inf.ufsc.br>)
  *  Arjan van Leeuwen <avleeuwen@piwebs.com>
  *  Ashish SHUKLA <ashish@FreeBSD.org>
  *  Bill Fumerola <billf@chc-chimes.com>
  *  Björn König <bkoenig@alpha-tierchen.de>
  *  Brad Hendrickse <bradh@iafrica.com>
  *  Bruce M Simpson <bms@FreeBSD.org>
  *  Carlos Eduardo G. Carvalho <cartola@openit.com.br>
  *  Charlie Kester <corky1951@comcast.net>
  *  Choe, Cheng-Dae
  *  Choe, Cheng-Dae <whitekid@gmail.com>
  *  Chris D. Faulhaber <jedgar@FreeBSD.org>
  *  Chris D. Faulhaber <jedgar@fxp.org>
  *  Chris Piazza <cpiazza@FreeBSD.org>
  *  Christopher Key <cjk32@cam.ac.uk>
  *  Chuck Robey <chuckr@FreeBSD.org>
  *  Corey Smith <corsmith@gmail.com>
  *  Dan Langille <dvl@FreeBSD.org>
  *  Daniel O'Connor <darius@dons.net.au>
  *  Daniel Roethlisberger <daniel@roe.ch>
  *  Danilo Egea Gondolfo <danilo@FreeBSD.org>
  *  Dave Cottlehuber <dch@skunkwerks.at>
  *  David Bremner <bremner@unb.ca>
  *  David Gilbert <dgilbert@velocet.ca>
  *  David Naylor <dbn@FreeBSD.org>
  *  David Yeske <dyeske@gmail.com>
  *  Denis Barov <dindin@dindin.ru>
  *  Denis Podolskiy <bytestore@yandex.ru>
  *  Dennis Herrmann <adox@mcx2.org>
  *  Devaux Fabien <fab@gcu.info>
  *  Dmitry Sivachenko <dima@Chg.RU>
  *  Dominik Brettnacher <domi@nonsensss.de>
  *  Donn Miller <dmmiller@cvzoom.net>
  *  Douglas Carmichael <dcarmich@mcs.com>
  *  Douglas K. Rand <rand@meridian-enviro.com>
  *  Edwin Groothuis <edwin@mavetju.org>
  *  Emanuel Haupt <ehaupt@FreeBSD.org>
  *  Emanuel Haupt <ehaupt@critical.ch>
  *  Emil J.V. Björsell (Jev)
  *  Emmanuel Vadot <manu@FreeBSD.org>
  *  Eric Anholt <anholt@FreeBSD.org>
  *  Eric Freeman <freebsdports@chillibear.com>
  *  Eric P. Scott <eps+pbug0703@ana.com>
  *  Erwin Lansing <erwin@FreeBSD.org>
  *  Eugene Mychlo <myc@barev.net>
  *  Fernan Aguero <fernan@iib.unsam.edu.ar>
  *  Franz Klammer <klammer@webonaut.com>
  *  FreeBSD GNOME Team <gnome@FreeBSD.org>
  *  G. Adam Stanislav <adam@whizkidtech.net>
  *  Garrett Wollman <wollman@lcs.mit.edu>
  *  Gea-Suan Lin <gslin@gslin.org>
  *  George Reid <greid@ukug.uk.freebsd.org>
  *  Gerrit Beine (<gerrit.beine@gmx.de>)
  *  Gerrit Beine (<tux@pinguru.net>)
  *  Glenn Johnson
  *  Greg Lewis <glewis@FreeBSD.org>
  *  Gustau Perez <gustau.perez@gmail.com>
  *  Gustau Pérez i Querol <gustau.perez@gmail.com>
  *  Gvozdikov Veniamin <g.veniamin@googlemail.com>
  *  Hernan Di Pietro <hernan.di.pietro@gmail.com>
  *  Hiroto Kagotani <hiroto.kagotani@gmail.com>
  *  Horia Racoviceanu <horia@racoviceanu.com>
  *  Hye-Shik Chang <perky@fallin.lv>
  *  Hye-Shik Chang <perky@python.or.kr>
  *  Igor Pokrovsky <ip@doom.homeunix.org>
  *  Igor Pokrovsky <tiamat@comset.net>
  *  James FitzGibbon <jfitz@FreeBSD.org>
  *  Jamie Hermans <jamie@hermans.ca>
  *  Jan Henrik Sylvester <me@janh.de>
  *  Janni
  *  Janos Mohacsi <janos.mohacsi@bsd.hu>
  *  Jason Helfman <jgh@FreeBSD.org>
  *  Jean-Marc Zucconi <jmz@FreeBSD.org>
  *  Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
  *  Jean-Yves Lefort <jylefort@FreeBSD.org>
  *  Jean-Yves Lefort <jylefort@brutele.be>
  *  Jeff Molofee
  *  Jeremy Norris <ishmael127@home.com>
  *  Jeremy Norris <ishmael27@home.com>
  *  Joe Marcus Clarke <marcus@FreeBSD.org>
  *  Johannes Dieterich <jmd@FreeBSD.org>
  *  Johannes Jost Meixner <johannes@perceivon.net>
  *  Johannes Meixner <johannes@perceivon.net>
  *  John Hay
  *  John McAree <john@mcaree.org>
  *  John Prather
  *  John Reynolds <johnjen@reynoldsnet.org>
  *  Joris Dedieu <joris.dedieu@gmail.com>
  *  Jose Alonso Cardenas Marquez <acardenas@bsd.org.pe>
  *  Jose Jachuf <jjachuf@gmail.com>
  *  Joseph Koshy <koshy@india.hp.com>
  *  Juergen Unger <j.unger@choin.net>
  *  KANOU Hiroki <kanou@mil.allnet.ne.jp>
  *  KIRIYAMA Kazuhiko
  *  Kay Lehmann
  *  Kevin Golding <ports@caomhin.org>
  *  Kimura Fuyuki <fuyuki@hadaly.org>
  *  Koop Mast <kwm@FreeBSD.org>
  *  Kris Kennaway <kris@FreeBSD.org>
  *  Kris Moore <kmoore@FreeBSD.org>
  *  Kubilay Kocak <koobs@FreeBSD.org>
  *  Kurt Kanzenbach <kurt@kmk-computers.de>
  *  Kyle Martin <mkm@ieee.org>
  *  Laurent Courty
  *  Leonardo Martins <lmartins@nepe.eee.ufg.br>
  *  Lev Serebryakov <lev@FreeBSD.org>
  *  Malte Lance <malte.lance@gmx.net>
  *  Marc Fonvieille <blackend@FreeBSD.org>
  *  Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org>
  *  Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org> et al.
  *  Mark Atkinson <atkin901@gmail.com>
  *  Mark Murray <markm@FreeBSD.org>
  *  Mark Pulford <mark@kyne.com.au>
  *  Markus Brueffer <markus@FreeBSD.org>
  *  Martin Dieringer <martin.dieringe@gmx.de>
  *  Martin Dieringer <martin.dieringer@gmx.de>
  *  Martin Matuska <mm@FreeBSD.org>
  *  Martin Neubauer <m.ne@gmx.net>
  *  Martin Sugioarto <martin.sugioarto@udo.edu>
  *  Martin Tournoij <carpetsmoker@rwxrwxrwx.net>
  *  Martin Tournoij <carpetsmoker@xs4all.nl>
  *  Martin Wilke <miwi@FreeBSD.org>
  *  Mateusz Piotrowski <0mp@FreeBSD.org>
  *  Mathieu Arnold
  *  Matthew Luckie <mjl@luckie.org.nz>
  *  Matthew X. Economou <xenophon+fbsdports@irtnog.org>
  *  Matthias Fechner <mfechner@FreeBSD.org>
  *  Matthieu Volat <mazhe@alkumuna.eu>
  *  Maurice Castro <maurice@serc.rmit.edu.au>
  *  Maxim Sobolev <sobomax@FreeBSD.org>
  *  Michael Gmelin <freebsd@grem.de>
  *  Michael Johnson <ahze@FreeBSD.org>
  *  Michael Johnson <ahze@ahze.net>
  *  Michael Nottebrock <lofi@FreeBSD.org>
  *  Michael Reifenberger <mr@FreeBSD.org>
  *  Mike Krutov <neko@takino.org>
  *  Mikhail T. <mi@aldan.algebra.com>
  *  Mikhail Teterin <mi@aldan.algebra.com>
  *  Muhammad Moinur Rahman <5u623l20@gmail.com>
  *  NAKATA Maho <maho@FreeBSD.org>
  *  Naram Qashat <cyberbotx@cyberbotx.com>
  *  Nick Hilliard <nick@foobar.org>
  *  Nicola Vitale <nivit@FreeBSD.org>
  *  Nicola Vitale <nivit@email.it>
  *  Nikolay Korotkiy <sikmir@gmail.com>
  *  Norio Suzuki <nosuzuki@e-mail.ne.jp>
  *  Oliver Heesakkers <dev2@heesakkers.info>
  *  Oliver Lehmann <oliver@FreeBSD.org>
  *  Olivier Duchateau
  *  Paul Everlund
  *  Pav Lucistnik <pav@FreeBSD.org>
  *  Pedro F. Giffuni
  *  Pedro Garcia Freitas <sawp@sawp.com.br>
  *  Pedro Giffuni
  *  Pedro Giffuni <pfg@FreeBSD.org>
  *  Pete Fritchman <petef@FreeBSD.org>
  *  Pete Fritchman <petef@databits.net>
  *  Peter Ankerstal <peter@pean.org>
  *  Peter Jeremy <peterjeremy@optushome.com.au>
  *  Peter Schmiedeskamp <pschmied@qwest.net>
  *  Phil Phillips <pphillips@experts-exchange.com>
  *  Pietro Cerutti <gahr@FreeBSD.org>
  *  Pietro Cerutti <gahr@gahr.ch>
  *  Piotr Kubaj <pkubaj@anongoth.pl>
  *  Piotr Smyrak <smyru@heron.pl>
  *  Piotr Smyrak, piotr.smyrak@heron.pl
  *  Po-Chuan Hsieh <sunpoet@FreeBSD.org>
  *  Quentin Stievenart <acieroid@awesom.eu>
  *  R Joseph Wright <rjoseph@mammalia.org>
  *  Radim Kolar
  *  Rainer Hurling <rhurlin@gwdg.de>
  *  Randall Hopper
  *  Randall Hopper <aa8vb@ipass.net>
  *  Randall Hopper <aa8vb@nc.rr.com>
  *  Reinier de Blois <rddeblois@gmail.com>
  *  Richard Hwang <rhwang@bigpanda.com>, Mikhail Teterin <mi@aldan.algebra.com>, Jun-ichiro itojun Itoh <itojun@itojun.org>
  *  Rick Elrod <codeblock@eighthbit.net>
  *  Rob Farmer <rfarmer@predatorlabs.net>
  *  Rod Person <rodperson@rodperson.com>
  *  Roland Jesse <roland.jesse@gmx.net>
  *  Romain Tartiere <romain@FreeBSD.org>
  *  Ron van Daal
  *  Ronald Kuehn <rk@ronald.org>
  *  Rong-En Fan <rafan@infor.org>
  *  Rusmir Dusko <nemysis@FreeBSD.org>
  *  Rusty Nejdl <rnejdl@ringofsaturn.com>
  *  Ryan Melcer <rmelcer@iteris.com>
  *  Ryan Steinmetz <zi@FreeBSD.org>
  *  Sahil Tandon <sahil@FreeBSD.org>
  *  Sam Lawrance
  *  Satoshi Asami <asami@FreeBSD.org>
  *  Satoshi Taoka <taoka@FreeBSD.org>
  *  Seiichirou Hiraoka
  *  Serge Negodyuck <petr@petrovich.kiev.ua>
  *  Sergey A. Osokin <osa@FreeBSD.org>
  *  Sergey Skvortsov <skv@protey.ru>
  *  Sergey V. Dyatko <sergey.dyatko@gmail.com>
  *  Shane Ambler
  *  Shaun Amott <shaun@inerd.com>
  *  Shell Hung <shell@shellhung.org>
  *  Shigeyuki FUKUSHIMA <shige@FreeBSD.org>
  *  Simun Mikecin <numisemis@yahoo.com>
  *  Sofian Brabez <sbrabez@gmail.com>
  *  Stanislav Sedov <ssedov@mbsd.msk.ru>
  *  Stanislav Sedov <stas@FreeBSD.org>
  *  Stas Timokhin <devel@stasyan.com>
  *  Stas Timokhin <stast@bsdportal.ru>
  *  Stefan Walter <sw@gegenunendlich.de>
  *  Stephen Roome <steve@pepcross.com>
  *  Steve Wills <steve@meatwad.mouf.net>
  *  Steve Wills <swills@FreeBSD.org>
  *  Steven Kreuzer <skreuzer@FreeBSD.org>
  *  Steven Wallace <swallace@FreeBSD.org>
  *  Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
  *  TAKAHASHI Kaoru <kaoru@kaisei.org>
  *  TAKATSU Tomonari <tota@FreeBSD.org>
  *  TAKATSU Tomonari <tota@rtfm.jp>
  *  TAOKA Fumiyoshi
  *  TATEISHI Katsuyuki <katsu@iec.hiroshima-u.ac.jp>
  *  Tassilo Philipp <tphilipp@potion-studios.com>
  *  Thibault Payet <monwarez@mailoo.org>
  *  Thierry Thomas <thierry@pompo.net>
  *  Thomas Dreibholz <dreibh@iem.uni-due.de>
  *  Thomas Gellekum <tg@FreeBSD.org>
  *  Thomas Hurst <tom@hur.st>
  *  Tilman Linneweh <arved@FreeBSD.org>
  *  Tim Bishop <tim@bishnet.net>
  *  Tod McQuillin <devin@spamcop.net>
  *  Tomoyuki Sakurai <cherry@trombik.org>
  *  Tsung-Han Yeh <snowfly@yuntech.edu.tw>
  *  UMENO Takashi <umeno@rr.iij4u.or.jp>
  *  Ulrich Spoerlein <q@uni.de>
  *  Vasil Dimov <vd@FreeBSD.org>
  *  Veniamin Gvozdikov <vg@FreeBSD.org>
  *  Vincent Tantardini <vinc@FreeBSD-fr.org>
  *  Vladimir Chukharev
  *  Wen Heping <wen@FreeBSD.org>
  *  Wen Heping <wenheping@gmail.com>
  *  Wen heping <wenheping@gmail.com>
  *  Wen heping<wenheping@gmail.com>
  *  Will Andrews <andrews@technologist.com>
  *  Yi-Jheng Lin <yzlin@cs.nctu.edu.tw>
  *  Ying-Chieh Liao <ijliao@FreeBSD.org>
  *  Yinghong Liu <relaxbsd@gmail.com>
  *  Yinghong.Liu <relaxbsd@gmail.com>
  *  Yuan-Chung Hsiao <ychsiao@ychsiao.org>
  *  Yukihiro Nakai <Nakai@Mlab.t.u-tokyo.ac.jp>
  *  Yukihiro Nakai <nacai@iname.com>
  *  Yukihiro Nakai <nakai@mlab.t.u-tokyo.ac.jp>
  *  Yuri Victorovich <yuri@FreeBSD.org>
  *  Yuri Victorovich <yuri@rawbw.com>
  *  Yuu Yashiki
  *  Yuzo FURUKAWA <hurukawa@kuee.kyoto-u.ac.jp>
  *  Zhihao Yuan <lichray@gmail.com>
  *  Zsolt Udvari <udvzsolt@gmail.com>
  *  ache
  *  alepulver
  *  anhot
  *  antonakis@gmail.com
  *  argv[0] (Iouri V. Ivliev)
  *  arved
  *  asami
  *  bf <bf@FreeBSD.org>
  *  bmc@WillsCreek.COM
  *  buganini@gmail.com
  *  cacho@mexicano.gdl.iteso.mx
  *  cartola (Carlos E. G. Carvalho)
  *  cartola@openit.com.br
  *  cfs@ing.puc.cl (original)
  *  chinsan
  *  chinsan <chinsan.tw@gmail.com>
  *  coryking
  *  cracauer@cons.org "Martin Cracauer"
  *  demon@FreeBSD.org
  *  dillon
  *  dom@happygiraffe.net
  *  erich@FreeBSD.org
  *  fenner
  *  fernan@iib.unsam.edu.ar
  *  frankch@waru.life.nthu.edu.tw
  *  gahr
  *  gary@hotlava.com
  *  gerard
  *  giffunip@asme.org
  *  glebius@FreeBSD.org
  *  gurkan@phys.ethz.ch
  *  hsu
  *  ijliao
  *  jamie
  *  jedgar@FreeBSD.org
  *  jeff@cetlink.net
  *  jjachuf@gmail.com
  *  jmz
  *  johalun
  *  johan
  *  johans
  *  kwm@FreeBSD.org
  *  lbartoletti <lbartoletti@FreeBSD.org>
  *  lesi@FreeBSD.org
  *  lichray@gmail.com
  *  luigi@FreeBSD.org
  *  maho@FreeBSD.org
  *  marcus@FreeBSD.org
  *  mb@imp.ch
  *  mi
  *  mm@FreeBSD.org
  *  nemysis <nemysis@gmx.ch>
  *  nik
  *  nork@FreeBSD.org
  *  olgeni@FreeBSD.org
  *  paulo@isr.uc.pt
  *  petef@FreeBSD.org
  *  pgs
  *  ports@FreeBSD.org
  *  proff@iq.org
  *  punkt.de Hosting Team <mops@punkt.de>
  *  rfarmer@predatorlabs.net
  *  roberto
  *  roland.jesse@gmx.net
  *  rpsfa@rit.edu
  *  saper@system.pl
  *  smace
  *  sobomax
  *  stas
  *  stb@lassitu.de
  *  theraven@FreeBSD.org
  *  thierry@pompo.net
  *  tobez
  *  trasz <trasz@pin.if.uz.zgora.pl>
  *  trevor
  *  vanilla
  *  will
  *  wolman@cs.washington.edu
  *  yukinopo@livedoor.com

With hat:	portmgr

Although this port was tested with GCC 10 on amd64, it was _not_ on
powerpc64, and it seems that GCC10/powerpc64 regresses in several cases
vs. GCC9/powerpc64.

Approved by:	portmgr (tier-2 blanket)

After the update of OpenCV to v4.5.1 the build was broken. Some
important commits [1] after release v1.7.0 fixed the issues.

[1] https://github.com/dyne/frei0r/compare/v1.7.0...master

Approved by:	tcberner (mentor)
Differential Revision:	https://reviews.freebsd.org/D28436

This is a major upgrade from 3.x to 4.x.

Changelog from versions 3.4.1--4.5.1 can be found here:
    https://github.com/opencv/opencv/wiki/ChangeLog

Note: this has explicitely not been added as a new graphics/opencv4 port, but replaces the
      previous graphics/opencv[3] port. Again, to improve maintainability by not giving ports
      the option to pick the "wrong one" - this leads however to some abandoned ports being
      broken.

The port has been greatly simplified:
    * graphics/opencv-core which existed to enable ffmpeg to depend on opencv, and vice versa
      has been removed. ffmpeg no longer can depend on opencv.
    * graphics/py-opencv has been integrated into graphics/opencv, the default versions python
      bindings will be built unless the PYTHON option is explicitely turned off.
    * graphics/opencv-java has been integrated into graphics/opencv -- it is off by default,
      but can be enabled by toggling the JAVA option -- there are no consumers in the tree,
      so that option might go away in the future.
    * All the previous options have been removed and replaced by a (hopefully) sane set of
      dependencies that make the port and package most usable for the majority of consumers.
      - Please let me know if you think there are better defaults (i.e. anything that is missing,
        or something that should not be dependet on).
      - If you think something should be added or removed, please open a bug report.
      - If you think something should be added as an optional dependency, please open a
        bug report (with a good reason [tm]).

The depending ports have been updated to work against opencv4, or marked broken.
    * Ports broken:
      - graphics/rubygem-objectdetect: OpenCV4 no longer ships opencv-1.0 API
      - graphics/p5-Image-ObjectDetect: OpenCV4 no longer ships opencv-1.0 API
      - graphics/gimp-gmic-plugin: OpenCV4 no longer ships opencv-1.0 API
    * Backports:
      - misc/visp: https://github.com/lagadic/visp/commit/dfa7e4bd47c24cd2e631477e6afb18806733ff8a
      - multimedia/zart: https://github.com/c-koi/zart/commit/6ca1964690afbbc78627d7c868a692401043a584,
                         https://github.com/c-koi/zart/commit/d3a2931b1a07ec0322211f253468000363c4b6cb
    * Others:
      - misc/actiona: switch to pkgconfig 'opencv4'
      - multimedia/libav: drop opencv support
      - misc/darknet: already failed to build prior to the upgrade
      - math/saga: remove patching added to work against opencv3

frei0r-plugins-1.7.0/src/filter/elastic_scale/elastic_scale.cpp:152: error: ISO C++ forbids initialization of member 'm_transformationCalculations'

Approved by:	portmgr (tier-2 blanket)

PR:		237135
Obtained from:	https://github.com/dyne/frei0r/commit/b0a06d52e39438fae2afbf98bafe6c794d13b83e

Approved by:	portmgr blanket

PR:		236661
Submitted by:	Samy Mahmoudi <samy.mahmoudi@gmail.com>

Ports that build out of source now simply can use "USES=cmake"
instead of "USES=cmake:outsource". Ports that fail to build
out of source now need to specify "USES=cmake:insource".

I tried to only set insource where explictely needed.

PR:		232038
Exp-run by:	antoine

PR:		210505
Submitted by:	rozhuk.im@gmail.com (partially, further work was done)
Exp-run by:	antoine

Changes:	https://files.dyne.org/frei0r/ChangeLog.txt

PR:		224669

Renaming didn't help to unblock 3.x progress as co-existence with 2.x
was no less complex than simply fixing consumers. This commit also
restores directory-level history accidentally lost via git-svn.

PR:		210505
Pointy hat to:	jbeich (should've discussed first)

To avoid confusion, the main port is to track the latest release.
Whether to rename includes/libraries as well making it possible to
install 2.x and 3.x side-by-side remains to be investigated.

PR:		210505 (for tracking)
Inspired by:	PkgSrc

- graphics/frei0r-plugins
 * Switch to USES= metaport [1]

PR:		(based on) 201636 [1], 209291 [2]
Submitted by:	Andriy Voskoboinyk [1], myself [2]
Approved by:	jhale@ (maintainer, timeout > 2 months)

With hat:	portmgr
Sponsored by:	Absolight

Noticed by:	mva
Sponsored by:	Absolight

Sponsored by:	Absolight

No functional changes included.

CR:		D193 (except math/sedumi)
Approved by:	portmgr (bapt)

Exp-run by:	bdrewery

Approved by:	portmgr (bdrewery)

Approved by:	makc (mentor)

Approved by:	portmgr (miwi)

Approved by:	bsdkaffee@gmail.com (maintainer, implicit)

PR:	ports/158408