filesystems: add new category for file systems and related utilities

The filesystems category houses file systems and file system utilities.
It is added mainly to turn the sysutils/fusefs-* pseudo-category into
a proper one, but is also useful for the sundry of other file systems
related ports found in the tree.

Ports that seem like they belong there are moved to the new category.
Two ports, sysutils/fusefs-funionfs and sysutils/fusefs-fusepak are
not moved as they currently don't fetch and don't have TIMESTAMP set
in their distinfo, but that is required to be able to push a rename
of the port by the pre-receive hook.

Approved by:	portmgr (rene)
Reviewed by:	mat
Pull Request:	https://github.com/freebsd/freebsd-ports/pull/302
PR:		281988

fusefs-lkl: gcc+binutils is only needed to build

There are no run-time requirements on GCC, so don't force
the install of GCC, and worse Binutils to conflict with base
utilities.

PR:	278848
Pull Request:	https://github.com/freebsd/freebsd-ports/pull/251

*: Bump PORTREVISIONs for math/mpc update to 1.3.1

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.

sysutils: remove 'Created by' lines

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

  *  <jsmith@resonatingmedia.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Landwehr <aaron@snaphat.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Adrian Chadd
  *  Adrian Chadd <adrian@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alan Eldridge <alane@FreeBSD.org>
  *  Alan Eldridge <alane@geeksrus.net>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Deiter <alex.deiter@gmail.com>

Style: improve ONLY_FOR_ARCHS_REASON (grammar, markup, etc.)

ONLY_FOR_ARCHS_REASON is used as part of the sentence and thus should
start with lower-case letter and not end with a period which is added
by the framework, similar to other knobs like BROKEN, IGNORE, et al.

While here, remove needless quoting, add missing Oxford comma, expand
contractions and jargonisms, use correct spelling for proper names.

Remove # $FreeBSD$ from Makefiles.

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

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

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, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

Remove compatibility code for FreeBSD < 11.2 from all ports.

Simplify some ports where DragonFlyBSD no longer needs to be special-cased.
Submitted by:	rene
Reviewed by:	bapt, jbeich
Differential Revision:	https://reviews.freebsd.org/D17724

Bump PORTREVISION for ports depending on the canonical version of GCC
in the ports tree (via Mk/bsd.default-versions.mk and lang/gcc) which
has now moved from GCC 6 to GCC 7 by default.

This includes ports
 - featuring USE_GCC=yes or USE_GCC=any,
 - featuring USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and those
 - with USES=compiler specifying one of openmp, nestedfct, c11, c++0x,
   c++11-lib, c++11-lang, c++14-lang, c++17-lang, or gcc-c++11-lib.

PR:		222542

sysutils/fusefs-lkl: update to 4.16

Upstream removed git tags, so the version is based on Linux Makefile and
date of the git revision.

The upstream Makefile no longer accepts specific targets, so the non-FUSE
targets are patched away to prevent them from being built (which fails).
(They are not used by this port.)

Submitted by:	Charlie Li <ml AT vishwin.info>
Reviewed by:	mat
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D16044

fusefs-lkl fails on head with same error as FreeBSD 11

Mark BROKEN On FreeBSD 11:

+ echo Inconsistent kallsyms data
Inconsistent kallsyms data
+ echo Try 'make KALLSYMS_EXTRA_PASS=1' as a workaround
Try make KALLSYMS_EXTRA_PASS=1 as a workaround
+ exit 1

Sponsored by:	Absolight

Bump PORTREVISIONs of all users of math/mpc that we just updated to
version 1.1.0 (via revision 464079).

Bump PORTREVISION for ports depending on the canonical version of GCC
(via Mk/bsd.default-versions.mk and lang/gcc) which has moved from
GCC 5.4 to GCC 6.4 under most circumstances.

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, c++11-lib, c++11-lang,
   c++14-lang, c++0x, c11, or gcc-c++11-lib.

PR:		219275

sysutils/fusefs-lkl: respect CC

PR:		218475
Submitted by:	Ting-Wei Lan
Approved by:	maintainer timeout (1 month)

Replace USE_GCC=yes by a strict build dependency on lang/gcc since
only that guarantees that a binary (or actually symlink) named gcc
is present which this ports apparently requires.

USE_GCC=yes allows users to adjust the default version of GCC via
Mk/bsd.defaults-versions.mk, and with the change coming via PR218330
lang/gcc5 is going to be used instead of the (nearly identical, for
now) lang/gcc shortly.

PR:		218475, 218330
Approved by:	cem (maintainer)

Bump PORTREVISIONs for ports depending on the canonical version of GCC and
lang/gcc which have moved from GCC 4.9.4 to GCC 5.4 (at least under some
circumstances such as versions of FreeBSD or platforms).

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using using Mk/bsd.octave.mk which in turn has USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c++11-lib, c++14-lang,
   c++11-lang, c++0x, c11, or gcc-c++11-lib.

PR:		216707

Remove the remaining IGNORE_FreeBSD_9 lines.

Sponsored by:	Absolight

Bump PORTREVISIONS for ports depending on the canonical version of GCC and
lang/gcc which have moved from GCC 4.8.5 to GCC 4.9.4 (at least under some
circumstances such as versions of FreeBSD or platforms).

In particular that is ports with USE_GCC=yes, USE_GCC=any, or one of
gcc-c++11-lib, openmp, nestedfct, c++11-lib as well as c++14-lang,
c++11-lang, c++0x, c11 requested via USES=compiler.

sysutils/fusefs-lkl: update to 4.8.493

- Switch to `git describe --abbrev=12` versioning scheme

Approved by:	cem (maintainer)
Differential Revision:	https://reviews.freebsd.org/D8284

sysutils/fusefs-lkl: unbreak

- Drop bsd.port.pre.mk line

Approved by:	portmgr blanket

GOOGLE_CODE has gone away.

- If a port has another upstream, remove GOOGLE_CODE
- If a port only has GOOGLE_CODE mark it BROKEN

Some ports have a local mirror configured but for security reasons, it
is not considered upstream.

Sponsored by:	Absolight

sysutils/fusefs-lkl: Update to more recent master

This brings us from Linux 4.3.0+ to Linux 4.5.0+.

It also brings in support for extended filesystem options from the LKL project.

Approved by:	mat
Differential Revision:	https://reviews.freebsd.org/D7520

Github cleanup.

- Use the version tag instead of commit hash when they're the same.
- Remove unnneeded variables.
- Simplify go- ports when possible.
- Various fixes.

Sponsored by:	Absolight

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

- Remove build dependency on the python symlink
- libfuse.so is already provided by USES=fuse

sysutils/fusefs-lkl: We don't want python2.7, we want 'python'

sysutils/fusefs-lkl: Add needed USES=python

sysutils/fusefs-lkl: Be sure to build with ports ld, bc

The base versions are deficient.

sysutils/fusefs-lkl: Disable on older platforms

sysutils/fusefs-lkl: Add lklfuse, a Linux implementation for FUSE

liblkl.a provides the Linux kernel (in nommu mode) as a library.  The lklfuse
binary can be used to mount filesystems that Linux supports (btrfs, ext4 and
earlier, and xfs) read/write under FUSE.

Reviewed by:	bdrewery
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D4199