We don't want a tests-dev package, because this means set-devel depends
on tests-dev, which transitively depends on tests, which means you can't
install set-devel without also getting tests.

The only real "dev" files in tests-dev are from ATF (libprivateatf),
so move that to its own package and add a dependency from tests.

Also move Kyua to its own package, since this might be useful for
running tests even when the user doesn't want the whole set of base
tests installed.

Add a dependency from -tests to both -atf and -kyua, and a dependency
on -set-base, since the tests won't work without the full base system
installed.

The remaining "dev" files in tests are actually test artifacts, not real
development libraries.  Add a new NO_DEV_PACKAGE option to bsd.lib.mk,
which causes dev files to be installed in the base package instead of
creating a -dev package, and set this option for everything that
installs test libraries.

While here, add a slightly more informative description for the tests
package.

MFC after:	3 seconds
Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D52597

After building packages we have a number of new
and updated Makefile.depend files

Reviewed by:	stevek

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D27713

- Move libxo.a build to subdirectory (lib/libxo/libxo/Makefile)
- Add .WAIT target to delay encoder build til after libxo
- Use FILES to install encoder library as csv.enc
- Update import script to put xo_config.h in new location

Sponsored by:	Dell EMC Isilon

EMC DELL Isilon so revert the relative symlink fix
pending a better solution.

Reported by:	ngie
Approved by:	greham (mentor) Implicit as reverting
MFC after:	1 week

Style.Makefile(9) has been ignored to produce minimal diffs.

Approved by:	grehan (mentor)
MFC after:	1 week

after r298107

Summary of changes:

- Replace all instances of FILES/TESTS with ${PACKAGE}FILES. This ensures that
  namespacing is kept with FILES appropriately, and that this shouldn't need
  to be repeated if the namespace changes -- only the definition of PACKAGE
  needs to be changed
- Allow PACKAGE to be overridden by callers instead of forcing it to always be
  `tests`. In the event we get to the point where things can be split up
  enough in the base system, it would make more sense to group the tests
  with the blocks they're a part of, e.g. byacc with byacc-tests, etc
- Remove PACKAGE definitions where possible, i.e. where FILES wasn't used
  previously.
- Remove unnecessary TESTSPACKAGE definitions; this has been elided into
  bsd.tests.mk
- Remove unnecessary BINDIRs used previously with ${PACKAGE}FILES;
  ${PACKAGE}FILESDIR is now automatically defined in bsd.test.mk.
- Fix installation of files under data/ subdirectories in lib/libc/tests/hash
  and lib/libc/tests/net/getaddrinfo
- Remove unnecessary .include <bsd.own.mk>s (some opportunistic cleanup)

Document the proposed changes in share/examples/tests/tests/... via examples
so it's clear that ${PACKAGES}FILES is the suggested way forward in terms of
replacing FILES. share/mk/bsd.README didn't seem like the appropriate method
of communicating that info.

MFC after: never probably
X-MFC with: r298107
PR: 209114
Relnotes: yes
Tested with: buildworld, installworld, checkworld; buildworld, packageworld
Sponsored by: EMC / Isilon Storage Division