Remove expired ports:

2021-04-14 www/grafana4: Upstream end of life
2021-04-14 www/grafana5: Upstream end of life
2021-04-15 comms/py-lirc: No longer maintained and not compatible with Python 3
2021-04-15 x11-toolkits/qt5-gtkplatform: Archived upstream

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

x11-toolkits/qt5-gtkplatform: fix build with modern Qt

- update to the last commit in the repo which adds support for the Qt in ports
- deprecate as upstream abandonned the project

Approved by:	Greg V <greg@unrelenting.technology> (maintainer)
Differential Revision:	https://reviews.freebsd.org/D26415

Update Qt5 to 5.14.2

Very big thanks go again to kai@ who provided the www/qt5-webengine upgrade (to
5.14.0).
Notably, video capture support was re-enabled.

Announcement:
        https://www.qt.io/blog/qt-5.14-has-released

PR:		244964
Exp-run by:	antoine

Add USES=xorg USES=gl, ports categories x

Add USES=xorg and USES=gl to ports in categories starting with 'x'
While here, try to sprinkle other USES (mostly gnome and sdl) as needed.

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

x11-toolkits/qt5-gtkplatform: prepare for Qt 5.13

PR:		238782

Fix build on gcc-based architectures:

  cc1plus: error: unrecognized command line option "-std=c++1z"

Approved by:	portmgr (tier-2 blanket)

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 Qt5 to 5.12.0

http://blog.qt.io/blog/2018/12/06/qt-5-12-lts-released/

- This breaks support for libressl again. Patches are welcome.

PR:		233705
Exp-run by:	antoine

Replace bsd.qt.mk by Uses/qt.mk and Uses/qt-dist.mk

From now on, ports that depend on Qt4 will have to set
	USES=		qt:4
	USE_QT=		foo bar
ports depending on Qt5 will use
	USES=		qt:5
	USE_QT=		foo bar

PR:		229225
Exp-run by:	antoine
Reviewed by:	mat
Approved by:	portmgr (antoine)
Differential Revision:	-https://reviews.freebsd.org/D15540

New port: x11-toolkits/qt5-gtkplatform

gtkplatform is a Qt Platform Abstraction plugin providing Qt applications with
the capability to use GTK+ as a host toolkit.

It lets Qt applications render with native GTK+ menus, and use GTK+ for input
(mouse, keyboard, touch), and getting window content on screen, the same as it
uses e.g. Cocoa on macOS.

WWW: https://github.com/CrimsonAS/gtkplatform

PR:		224453
Submitted by:	Greg V <greg@unrelenting.technology>