This makes udevd send log entries to kmsg buffer and sysklogd will
pick them up.
Ideally we should use "syslog" here, but at the time udevd starts,
sysklogd has not started yet and /dev/log does not exist. So udevd
cannot open /dev/log and it will still use stderr as a fallback. We
cannot make udevd depending on sysklogd either, because it would cause a
circular dependency...
The Udev build dependencies are directly copied from systemd. Though
they might be unneeded for a Udev-only build, meson will check them
anyway. And I'm sure Jinja2 is really used.
In systemd dependencies Attr is dropped because Attr is not used
directly, it's just Acl needs Attr. OpenSSL is added because udevadm
links to libcrypto.
As "S" and "U" are closer, create a "systemd-udev" entity to simplify
the <phrase> choices.
In Util-linux, lsblk and findmnt links to libudev so it depends on
&systemd-udev;.
We are switching from eudev to systemd-udev for SysV. Systemd installs
udevadm into /usr/bin, and at least a part of its function can be used
as non-root user, so we'll no longer put it into /usr/sbin.
I've not bothered to write an explanation for --disable-crypt because it
will likely be the default of Glibc-2.38, then we may drop it from the
command lines.
It does not make too much sense to list GNAT but not GDC. They are for
same purpose (building optional languages with bootstrap from binary
requirement).
There are many packages using pkg-config (pkgconf actually) or systemd
(systemd revision only) in the configure stage but we've not documented
them yet.
- D-Bus uses pkgconf to detect systemd.
- E2fsprogs uses pkgconf to detect libblkid (in util-linux).
eudev (in sysv revision) and systemd (in systemd revision).
- IProute2 uses pkgconf to detect libcap and libelf.
- Man-DB uses pkgconf to detect libpipeline and systemd.
- Procps-ng uses pkgconf to detect ncurses and systemd (or elogind,
but it's an external dependency).
- Python uses pkgconf to detect libuuid (in util-linux from Ch 07),
zlib, bzip2, xz, and openssl (and some external dependencies).
- Systemd uses pkgconf to detect Zlib, Xz, etc.
- Util-linux uses ncurses and systemd (and some external dependencies)
Add all of them.
There are also several packages finding for pkg-config but only uses it
for external dependencies, for eg grep and vim. I've not added them here.
