[PATCH] busybox: add UPDATE_ALTERNATIVE for syslog-service

[Steffen Sledz <sledz@dresearch-fe.de>]

Use ALTERNATIVE mechanism in OE to manage the syslog service to
avoid conflicts with other syslog implementations like rsyslog
or syslog-ng.

Signed-off-by: Steffen Sledz <sledz@dresearch-fe.de>
---
 meta/recipes-core/busybox/busybox.inc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index 4d4709a..4531dd1 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -316,6 +316,12 @@ python () {
         d.appendVar('ALTERNATIVE_%s-syslog' % (pn), ' syslog-startup-conf')
         d.setVarFlag('ALTERNATIVE_LINK_NAME', 'syslog-startup-conf', '%s/syslog-startup.conf' % (d.getVar('sysconfdir', True)))
         d.setVarFlag('ALTERNATIVE_TARGET', 'syslog-startup-conf', '%s/syslog-startup.conf.%s' % (d.getVar('sysconfdir', True), d.getVar('BPN', True)))
+
+    if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d):
+        pn = d.getVar('PN', True)
+        d.appendVar('ALTERNATIVE_%s' % (pn), ' syslog-service')
+        d.setVarFlag('ALTERNATIVE_LINK_NAME', 'syslog-service', '%s/systemd/system/syslog.service' % (d.getVar('sysconfdir', True)))
+        d.setVarFlag('ALTERNATIVE_TARGET', 'syslog-service', '%s/system/busybox-syslog.service' % (d.getVar('systemd_unitdir', True)))
 }

 python do_package_prepend () {
-- 
2.6.3