Fixes#4549.
People want to be able to redefine the prefixes relative to which the other
variables are defined. Something like
pkgconf --define-variable=prefix=/home/user/installpath --variable=systemdsystemunitdir systemd
I'm not convinced that this entirely useful, because the installed systemd will
not look at those paths, but maybe it's OK as an alternative type of $DESTDIR.
This has been requested a few times over the years, so let's just provide this.
I thought this would be more complicated, since we allow all kinds of directories
to be overrides in the compilation configuration. But it turns out that all the
directories defined in systemd.pc are relative to three prefixes:
$prefix, $rootprefix, and $sysconfdir. So this patch adds $rootprefix and $sysconfdir
to the .pc file and then changes the subsequent definitions in the .pc file to use
them. In the end we define each path twice using the same rules: once in meson.build
and once in the .pc file.
Without overrides:
$ for i in $(pkgconf --with-path=build/src/core systemd --print-variables); do
echo -n "$i = "; pkgconf --with-path=$PWD/build/src/core --variable=$i systemd
done
containeruidbasemax = 1878982656
containeruidbasemin = 524288
dynamicuidmax = 65519
dynamicuidmin = 61184
systemgidmax = 999
systemuidmax = 999
catalogdir = /usr/lib/systemd/catalog
modulesloaddir = /usr/lib/modules-load.d
binfmtdir = /usr/lib/binfmt.d
sysctldir = /usr/lib/sysctl.d
sysusersdir = /usr/lib/sysusers.d
tmpfilesdir = /usr/lib/tmpfiles.d
systemdshutdowndir = /usr/lib/systemd/system-shutdown
systemdsleepdir = /usr/lib/systemd/system-sleep
systemdusergeneratordir = /usr/lib/systemd/user-generators
systemdsystemgeneratordir = /usr/lib/systemd/system-generators
systemduserunitpath = /etc/systemd/user:/etc/systemd/user:/run/systemd/user:/usr/local/lib/systemd/user:/usr/local/share/systemd/user:/usr/lib/systemd/user:/usr/lib/systemd/user:/usr/share/systemd/user
systemdsystemunitpath = /etc/systemd/system:/etc/systemd/system:/run/systemd/system:/usr/local/lib/systemd/system:/usr/lib/systemd/system:/usr/lib/systemd/system:/lib/systemd/system
systemduserconfdir = /etc/systemd/user
systemdsystemconfdir = /etc/systemd/system
systemduserpresetdir = /usr/lib/systemd/user-preset
systemduserunitdir = /usr/lib/systemd/user
systemdsystempresetdir = /usr/lib/systemd/system-preset
systemdsystemunitdir = /usr/lib/systemd/system
systemdutildir = /usr/lib/systemd
sysconfdir = /etc
rootprefix = /usr
prefix = /usr
pcfiledir = /usr/share/pkgconfig
With overrides:
$ for i in $(pkgconf --with-path=build/src/core systemd --print-variables); do
echo -n "$i = "; pkgconf --with-path=$PWD/build/src/core \
--define-variable=prefix=/PREFIX \
--define-variable=rootprefix=/ROOTPREFIX \
--define-variable=sysconfdir=/SYSCONF --variable=$i systemd
done
containeruidbasemax = 1878982656
containeruidbasemin = 524288
dynamicuidmax = 65519
dynamicuidmin = 61184
systemgidmax = 999
systemuidmax = 999
catalogdir = /PREFIX/lib/systemd/catalog
modulesloaddir = /PREFIX/lib/modules-load.d
binfmtdir = /PREFIX/lib/binfmt.d
sysctldir = /PREFIX/lib/sysctl.d
sysusersdir = /PREFIX/lib/sysusers.d
tmpfilesdir = /PREFIX/lib/tmpfiles.d
systemdshutdowndir = /ROOTPREFIX/lib/systemd/system-shutdown
systemdsleepdir = /ROOTPREFIX/lib/systemd/system-sleep
systemdusergeneratordir = /PREFIX/lib/systemd/user-generators
systemdsystemgeneratordir = /ROOTPREFIX/lib/systemd/system-generators
systemduserunitpath = /SYSCONF/systemd/user:/etc/systemd/user:/run/systemd/user:/usr/local/lib/systemd/user:/usr/local/share/systemd/user:/PREFIX/lib/systemd/user:/usr/lib/systemd/user:/usr/share/systemd/user
systemdsystemunitpath = /SYSCONF/systemd/system:/etc/systemd/system:/run/systemd/system:/usr/local/lib/systemd/system:/ROOTPREFIX/lib/systemd/system:/usr/lib/systemd/system:/lib/systemd/system
systemduserconfdir = /SYSCONF/systemd/user
systemdsystemconfdir = /SYSCONF/systemd/system
systemduserpresetdir = /PREFIX/lib/systemd/user-preset
systemduserunitdir = /PREFIX/lib/systemd/user
systemdsystempresetdir = /ROOTPREFIX/lib/systemd/system-preset
systemdsystemunitdir = /ROOTPREFIX/lib/systemd/system
systemdutildir = /usr/lib/systemd
sysconfdir = /SYSCONF
rootprefix = /ROOTPREFIX
prefix = /PREFIX
pcfiledir = /usr/share/pkgconfig
(pkgconf doesn't provide a way to print all variables together with their definitions,
according to the man page. Disappointing.)
The original idea of systemd.pc was to contain arch-independent system
and systemd information. By exposing libdir as part of the fields (added
in eb39a6239c), it started to carry
arch-dependent data, thus breaking multilib systems. It was then moved
to pkgconfiglibdir to deal with this (in
aec432c613), but actually the right
approach is to simply not include libdir in the .pc file at all.
THis patch hence more or less reverts both commits again, and moves the
.pc file back into pkgconfigdatadir.
As alternative for querying the systems primary libdir there's now
"systemd-path system-library-arch", hence a more correct alternative
exists for querying this variable from the .pc file.
We shouldn't destroy IPC objects of system users on logout.
http://lists.freedesktop.org/archives/systemd-devel/2014-April/018373.html
This introduces SYSTEM_UID_MAX defined to the maximum UID of system
users. This value is determined compile-time, either as configure switch
or from /etc/login.defs. (We don't read that file at runtime, since this
is really a choice for a system builder, not the end user.)
While we are at it we then also update journald to use SYSTEM_UID_MAX
when we decide whether to split out log data for a specific client.
We export the location of a bunch of directories this way,
so it makes sense to add those three. Especially catalogdir
is something that we want people to add things to.
Note on the naming: the first two are tied closely to systemd
itself, so I prefixed them with "systemd". The third one is
rather more generic, so no prefix.
https://bugs.freedesktop.org/show_bug.cgi?id=67635
