*/*:	bump libboost*.so libraries consumert after Boost upgrade

Mk/Uses: always use colon for build/run suffix

Most USES use a colon for build/run(/test) suffixes. Change kde.mk,
qt.mk and pyqt.mk to do the same, and update all ports using that.

Document in CHANGES.

PR:			266034
Exp-run by:		antoine
Approved by:		tcberner (mentor)
Differential Revision:	https://reviews.freebsd.org/D36349

Remove WWW entries moved into port Makefiles

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)

Add WWW entries to port Makefiles

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.

*/*: bump all consumers after recent boost upgrade

games/leela-zero: Add download-weights target; Add info to pkg-message

games/leela-zero: Update 0.17 -> 0.17-30

devel/boost-all: bump all library consumers after boost upgrade

PR:	246106

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

Remove # $FreeBSD$ from Makefiles.

- Upgrade math/eigen3 to 3.3.8;

- Add some dependencies which might be detected by Find_Package but not
registered;

- Bump PORTREVISION of consumers.

PR:		250833
Submitted by:	/me
Approved by:	tcberner@ (KDE / maintainer) + exp-run

Bump 46 ports depending on math/openblas because the after the recent
math/openblas update the library name changed in openblas.

Fix math/openblas and bump dependent ports

* Fix build on i386 [1]
* Fix science/code_saturne build with new openblas [2]
* Avoid installing private headers [3]
* Prevent build from optimizing for host by correcting build confg [4]
* Bump portrevision of dependent ports [5]

This is correcting issues from r523749 [1][2][4] and r515970 [3]

PR:		231371
Reported by:	build cluster [1]
Reported by:	Dima Pasechnik <dimpase+freebsd@gmail.com> [2]
Reported by:	many [5]
Reviewed by:	mat, bapt
Approved by:	implicit, since this is a build fix

games/leela-zero: disable BLAS multi-threading after r523749

Previously, openblas_set_num_threads wasn't available but libopenblas.so
was single-threaded.

PR:		231371

math/openblas: Update to 0.3.7

While here, improve formatting and fix build of dependant ports.

PR:		231371
Submitted by:	yuri (initial version), pkubaj (ppc fixes)
Approved by:	Eijiro Shibusawa <phd_kimberlite@yahoo.co.jp> (maintainer)

devel/boost-*: update to 1.72.0

Changes:	http://www.boost.org/users/history/version_1_72_0.html
PR:		241449
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D22136

devel/boost-*: update to 1.71.0

Changes:	http://www.boost.org/users/history/version_1_71_0.html
PR:		238827
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D20774

Convert to UCL & cleanup pkg-message (categories e-g)

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

games/leela-zero: don't set -march=native

-march=native breaks compilation on powerpc64 and we shouldn't optimize anyway
for the CPU in the build cluster.

PR:             238886
Approved by:    yuri (maintainer), tcberner (mentor)
Differential Revision:  https://reviews.freebsd.org/D20806

games/leela-zero: Add the patch preventing rejection of CPU-only OpenCL
providers

games/leela-zero: Fix build on some systems by removing -flto

-flto causes failures: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238514

Reported by:	fallout

New port: games/leela-zero: Go engine without human-provided knowledge based on
AlphaGo Zero paper