Bug#941937: apt: Unexpected linkage dependency on libsystemd
On Mon, Oct 07, 2019 at 09:23:01PM +0200, Julian Andres Klode wrote:
> On Mon, Oct 07, 2019 at 08:22:33PM +0200, Andreas Messer wrote:
> > Would it make sense to use dlopen() to dynamically load libsystemd when needed
> > and avoid the hard dependency on libsystemd? If systemd is installed, libsystemd
> > will be available anyways.
>
> This is too fragile, it broke our udev integration last time for years, hence
> we are not using dlopen() anymore. A simple solution is the best solution.
>
> We have no intention to change anything in the near future. libsystemd is
> widely available (or libelogind0 is), and is basically essential, is tiny,
> and it's dbus library is the easiest to use.
It's not about not being available in normal use, it's because switching the
library's implementation is fragile -- especially if systemd's prerm fails
which it's notorious to. This will make apt fail, and apt happens to be the
very package supposed to fix such a problem.
> I expect that apt will eventually switch to using libglib's dbus support,
> once we implement a daemon, but that's a bit off, and that stuff might live
> in a separate binary to not pull in libglib on systems that don't need a
> daemon.
Would you accept a patch to move the inhibit function to a small separate
binary? That'd be a very simple solution.
Meow!
--
⢀⣴⠾⠻⢶⣦⠀ A MAP07 (Dead Simple) raspberry tincture recipe: 0.5l 95% alcohol,
⣾⠁⢠⠒⠀⣿⡁ 1kg raspberries, 0.4kg sugar; put into a big jar for 1 month.
⢿⡄⠘⠷⠚⠋⠀ Filter out and throw away the fruits (can dump them into a cake,
⠈⠳⣄⠀⠀⠀⠀ etc), let the drink age at least 3-6 months.
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