Removing libp11-kit-gnome-keyring causes errors in every application loading libp11-kit

[Anders Kaseorg]

When libp11-kit-gnome-keyring is removed but not purged, the conffile /etc/pkcs11/modules/gnome-keyring.module stays around, which causes every application that loads libp11-kit to look for the now-nonexistent /usr/lib/x86_64-linux-gnu/pkcs11/gnome-keyring-pkcs11.so and yell on stderr.

$ sudo apt-get remove libp11-kit-gnome-keyring
…
Removing libp11-kit-gnome-keyring:amd64 ...
…
$ cat /etc/pkcs11/modules/gnome-keyring.module

# The file is installed/loaded from the default module p11-kit directory
module: gnome-keyring-pkcs11.so

# And where to store and lookup trust objects
x-trust-store: pkcs11:library-manufacturer=GNOME%20Keyring;serial=1:XDG:DEFAULT
x-trust-lookup: pkcs11:library-manufacturer=GNOME%20Keyring
$ lpq
p11-kit: couldn't load module: /usr/lib/x86_64-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: /usr/lib/x86_64-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: cannot open shared object file: No such file or directory

See http://wiki.debian.org/DpkgConffileHandling.

(This is the real reason for the symptoms of bug 1157904, which was incorrectly fixed by adding a dependency on libp11-kit-gnome-keyring to cups.)

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: libp11-kit-gnome-keyring:amd64 3.8.2-0ubuntu3
ProcVersionSignature: Ubuntu 3.9.0-6.14-generic 3.9.6
Uname: Linux 3.9.0-6-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.10.2-0ubuntu2
Architecture: amd64
Date: Tue Jun 25 17:28:59 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2010-12-05 (933 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101202)
MarkForUpload: True
SourcePackage: gnome-keyring
UpgradeStatus: Upgraded to saucy on 2012-11-15 (222 days ago)

[Anders Kaseorg (andersk)]

I would also like to point out that this is the *third time* that dpkg conffile stupidity has caused problems with *this same package* (bug 911436, bug 1038577). What the heck is /etc/pkcs11/modules doing in /etc, anyway?