[OE-core] [PATCH 0/2] disallow multiple syslog daemons to be installed

[Chen Qi]

In OE core, we had the assumption that multiple syslog daemons could be installed
at the same time. We did some work to cope with this assumption, including
using update-alternatives to manage syslog related files.

In meta-openembedded, rsyslog and syslog-ng have already set RCONFLICTS to avoid
being installed with other syslog daemons.

Checking Fedora and Ubuntu, they both disallow installation of multiple syslog
daemons. (For other distros, I haven't checked.)

I support forbidding installing multiple syslog daemons. Reasons are below.
1) It makes things simpler and cleaner.
2) It doesn't make much sense to install multiple syslog daemons.
3) Our current implementation has some problems. One of them is that the
   /etc/systemd/system/syslog.service symlink is determined by the installation
   order of syslog daemons, while other syslog related files including syslog
   configuration files are determined by update-alternatives mechanism.
   For more info for the /etc/systemd/system/syslog.service symlink, please
   refer to https://www.freedesktop.org/wiki/Software/systemd/syslog/.

These two patches fix busybox and sysklogd to disallow installing multiple syslog
daemons.

The following changes since commit ee5bce2d11e783c0921df47b629025a6b67c44bf:

  kernel-dev: Removed bad reference for creating patches. (2017-09-02 00:52:49 +0100)

are available in the git repository at:

  git://git.pokylinux.org/poky-contrib ChenQi/syslog-conflicts
  http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=ChenQi/syslog-conflicts

Chen Qi (2):
  busybox: fix syslog related meta data
  sysklogd: conflict with other syslog daemons

 meta/recipes-core/busybox/busybox.inc       | 27 +++++++--------------------
 meta/recipes-extended/sysklogd/sysklogd.inc | 12 ++++--------
 2 files changed, 11 insertions(+), 28 deletions(-)

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1.9.1