Log message:
graphics/tiff: Add default-off option to build unsupported tools

With "tiff-unsupported", also build tiff2pdf and tiff2ps.  These have
been withdrawn by upstream and this option is a temporary
accommodation for depending packages and workflows that (now
incorrectly, by definition) use these programs.  The only known such
depending package is hylafax.

Log message:
tiff: disable libdeflate

Having both zlib and libdeflate doesn't make much sense;
change was incomplete since it would have required a recursive bump
for tiff; and with the branch this close, we don't want that.

Bump PKGREVISION.

Log message:
graphics/tiff: explicitly use libdeflate

Otherwise it is found and used in a host GNU/Linux distro, messing up dependents
which lack it in buildlinks.

Log message:
graphics/libtiff: use pkg-config to properly detect deps, remove --without-x

The --without-x is defunct. The configure script wants to use pkg-config, it
should be able to.

Log message:
recursive revbump for tiff update

Log message:
tiff: reset PKGREVISION after update

Log message:
graphics/tiff: Update to 4.6.0

Following upstream guidance, tools that are no longer supported are
not built by the package.  As raised on tech-pkg on October 2, with no
objections or even comments.

Upstream NEWS content:

This version removes a big number of utilities that have suffered from
lack of maintenance over the years and were the source of various
reported security issues. See "Removed functionality" below for the
list of removed utilities. Starting with libtiff v4.6.0, the source
code for most TIFF tools (except tiffinfo, tiffdump, tiffcp and
tiffset) was discontinued, due to the lack of contributors able to
address reported security issues. tiff2ps and tiff2pdf source code has
been moved in a unsupported category, no longer built by default, but
are still part of the the source distribution. Other retired utilities
are in a archive/ directory, only available in the libtiff git
repository. Issues related to unsupported and archived tools will no
longer be accepted in the libtiff bug tracker.

The usual bugfixes.

Log message:
tiff: Ask that it not be updated pre-branch

The just-released version withdraws a large number of utilities.  This
is very likely to cause breakage.  I intend to update just after the
branch.

Log message:
tiff: Use only libs_private to express a dependency on liblzma

requires_private assumes the presence of a .pc file, which is not
the case on NetBSD 9.x. This allows builds external from pkgsrc
dependending on libtiff to not fire errors when they fail to find
a corresponding .pc file for liblzma, but still acknowledge the
liblzma dependency.

PR pkg/57539

Log message:
tiff: don't try to rebuild docs if sphinx-build is present.

Fixes PLIST mismatch (DESTDIR is missing _sources/multi_page.rst.txt and
multi_page.html) in that case, at least on my macOS system. No change on
my NetBSD system without sphinx.