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Lexi Winter bb75b0d581 packages: Convert world to a subdir build
Instead of driving the world package build from Makefile.inc1,
use a subdir build where each package has a subdirectory under
packages/ using the new <bsd.pkg.mk>.

Convert some metadata that was previously in the UCL files (e.g.
sets and dependencies) to Makefile variables.

Build the packages under objdir (not repodir), and use the new
stagepackages target to copy them to repodir when creating the
repository.

Determine an explicit list of packages to build in packages/Makefile
based on enabled src.conf options, and add logic to abort the build
if we attempt to build an empty package.  This inverts the previous
logic in Makefile.inc1 which would simply skip empty packages.

There are a few advantages to doing it this way:

* The package build works more like the rest of the build system,
  so it's more accessible to developers.

* We can customise the packages we build based on src.conf options,
  e.g. skipping a package entirely, or adjusting its dependencies
  based on what it actually requires.

* We have a specific list of packages that we want to build, and an
  unexpectedly missing package results in a build error, instead of
  silently producing a broken repository.

* It's possible to build (and in the future, install) an individual
  package without having to rebuild the entire repository.

This doesn't apply to the dtb, kernel-* or src-* packages; those
have their own build systems in Makefile.inc1 and will be converted
later.

MFC after:	4 weeks (stable/15 only)
Reviewed by:	jlduran, sjg, brooks
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D56087
2026-04-24 15:10:01 +01:00

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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2010-2022 Hans Petter Selasky
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
comment = "Userland character device library"
desc = <<EOD
The libcuse library contains functions to create a character device in
userspace.
EOD