devel/libgnuregex 6.0_1

devel/libgnuregex: Fix undefined symbol in the resulting library

PR:		294168
Reported by:	Ben Grimm <freebsd@bengrimm.net>
Approved by:	portmgr (fixit blanket)

devel/libgnuregex: Fix building after gnulib update

Approved by: kevans (maintainer)
Differential Revision: https://reviews.freebsd.org/D56386

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.

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)

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

all: Remove all other $FreeBSD keywords.

Remove # $FreeBSD$ from Makefiles.

[NEW PORT] devel/libgnuregex: GNU regex(3) extension library

This version of libgnuregex is based on the latest version of devel/gnulib
in the tree, and is intended as a direct replacement for the libgnuregex
that has been historically provided in base.

A port was chosen over all consumers dragging in devel/gnulib to save
rebuilds since more than ~5 consumers need libgnuregex, and this also makes
for an easier migration as ports just need to bring in the port and make
sure LOCALBASE/lib and LOCALBASE/inclue are included.

It is currently expected that ports dependant on this will fully specify the
shlib version against ports tree convention so that we can provide a
consistent experience across all versions of FreeBSD, past and future, using
a less-broken version of the library.

PR:		252245