Remove a few expired ports:

2020-12-31 audio/ardour: Uses Python 2.7 version of scons, and Python 2.7 which
is EOLed upstream
2020-12-31 audio/mixxx21: Uses Python 2.7 version of scons, and Python 2.7 which
is EOLed upstream
2020-12-31 databases/arangodb32: Uses Python 2.7 which is EOLed upstream
2020-12-31 databases/arangodb33: Uses Python 2.7 which is EOLed upstream
2020-12-31 devel/bzr: Uses Python 2.7 which is EOLed upstream
2020-12-31 devel/chromium-gn: Uses deprecated version of python, use devel/gn
instead
2020-12-31 devel/mongo-cxx-driver: Uses Python 2.7 version of scons, and Python
2.7 which is EOLed upstream

Revert r559792 to unbreak INDEX and bulk -a
It seems a lot of reverse dependencies were missed

With hat:	portmgr

Remove most expired ports that depend on Python 2.7:

Exceptions are:
- mail/mailman, our listservers still use it
- www/chromium, solely because of popular demand,
  upstream is (slowly) working on porting it to Python 3
- ports that have actual patches for Python 3 against
  them (Cinnamon and a few unrelated other ports)
- llvm70 and qt5-webengine because they seem to have a lot
  of dependencies which need further analysis
- sysutils/uefi-edk2-bhyve because bhyve seems to use them
- python2 and python27 themselves

I'm sure there will be complaints, but the nice thing about
a version control system is that we can revert and adjust things.

- Bump PORTREVISION. audio/soundtouch was updated to 2.2
- Remove BROKEN on audio/mixxx. Now soundtouch should detected without problems

Bump PORTREVISION for devel/protobuf shlib change

Bump PORTREVISION for devel/protobuf shlib change

Update USES=scons to specify scons of Python 2

- While I'm here, convert emulators/gem5 and games/marsnomercy to USES=scons

Bump PORTREVISION for devel/protobuf shlib change

Unmark these ports broken on aarch64.

Submitted by:	emaste (TRYBROKEN run)
Approved by:	portmgr (tier-2 blanket)

Add USES=xorg USES=gl, ports categories a

Add USES=xorg, USES=gl and in a few cases USES=gnome to ports in categories
starting with 'a'.

Chase multimedia/mp4v2 update; bump PORTREVISIONS of dependent ports

PR:		212785

audio/mixxx21: fix build on non-x86

Ports shouldn't optimize for the builder's CPU. It also breaks build on non-x86.

Also include sys/types.h in plugins/soundsourcem4a/soundsourcem4a.h. GCC needs
it.

PR:		239322
Approved by:	acm (maintainer timeout), tcberner (mentor)
Differential Revision:	https://reviews.freebsd.org/D21146

Bump PORTREVISION for devel/protobuf shlib change

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

Update devel/protobuf to 3.8.0

- Bump PORTREVISION of dependent ports for shlib change

Changes:	https://github.com/protocolbuffers/protobuf/releases
PR:		238808
Exp-run by:	antoine

- Update to 2.1.8

ChangeLog at:	https://github.com/mixxxdj/mixxx/releases/tag/release-2.1.8

Update devel/protobuf to 3.7.1

- Bump PORTREVISION of dependent ports for shlib change

Changes:	https://github.com/protocolbuffers/protobuf/releases
PR:		236157
Exp-run by:	antoine

- Update to 2.1.7

Changelog at https://github.com/mixxxdj/mixxx/releases/tag/release-2.1.7

Fix Qt5 symbol version scripts to put the catch-all clause first.  When
a symbol matches multiple clauses the last one takes precedence.  If the
catch-all is last it captures everything.  In the case of Qt5 libraries
this caused all symbols to have a Qt_5 label while some should have
Qt_5_PRIVATE_API.  This only affects lld because GNU ld always gives the
catch-all lowest priority.

Older versions of Qt5Webengine exported some memory allocation symbols from
the bundled Chromium.  Version 5.9 stopped exporting these [1] but the
symbols were kept as weak wrappers for the standard allocation functions to
maintain binary compatibility. [2][3]  The problem is that the call to the
standard function in these weak wrappers is only resolved to the standard
function if there's a call to this standard function in other parts of
Qt5Webengine, because only then is there a non-weak symbol that takes
precedence over the weak one.  If there's no such non-weak symbol the call

- Update to 2.1.6

ChangeLog at: https://github.com/mixxxdj/mixxx/releases/tag/release-2.1.6

- Copy audio/mixxx to audio/mixxx21. audio/mixxx was updated to latest stable
  version. Now this is a previous stable version