tmpfiles: split off rules for legacy systems into legacy.conf

Makefile.am

@@ -207,6 +207,11 @@ dist_tmpfiles_DATA = \
 	tmpfiles.d/systemd.conf \
 	tmpfiles.d/x11.conf
 
+if HAVE_SYSV_COMPAT
+dist_tmpfiles_DATA += \
+        tmpfiles.d/legacy.conf
+endif
+
 dist_systemunit_DATA = \
 	units/graphical.target \
 	units/multi-user.target \

TODO

@@ -25,6 +25,8 @@ F15:
 
 Features:
 
+* take BSD file lock on tty devices when using them?
+
 * tmpfiles should allow two identical lines
   https://bugzilla.redhat.com/show_bug.cgi?id=690253
 

configure.ac

@@ -411,6 +411,7 @@ AM_CONDITIONAL(TARGET_ALTLINUX, test x"$with_distro" = xaltlinux)
 AM_CONDITIONAL(TARGET_MANDRIVA, test x"$with_distro" = xmandriva)
 
 AM_CONDITIONAL(HAVE_PLYMOUTH, test -n "$have_plymouth")
+AM_CONDITIONAL(HAVE_SYSV_COMPAT, test "$SYSTEM_SYSV_COMPAT" = "yes")
 
 AC_ARG_WITH([dbuspolicydir],
         AS_HELP_STRING([--with-dbuspolicydir=DIR], [D-Bus policy directory]),

tmpfiles.d/legacy.conf

@@ -0,0 +1,21 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+# See tmpfiles.d(5) for details
+
+# These files are considered legacy and are unnecessary on legacy-free
+# systems. /run/lock/subsys is used for serializing SysV service
+# execution, and hence without use on SysV-less systems.
+#
+# /run/lock/lockdev is used to serialize access to tty devices via
+# LCK..xxx style lock files, For more information see:
+# http://lists.freedesktop.org/archives/systemd-devel/2011-March/001823.html
+# On modern systems a BSD file lock is a better choice if
+# serialization is needed on those devices.
+
+d /run/lock/subsys 0755 root root -
+d /run/lock/lockdev 0775 root lock -

tmpfiles.d/systemd.conf

@@ -8,9 +8,6 @@
 # See tmpfiles.d(5) for details
 
 d /run/lock 0755 root root -
-d /run/lock/subsys 0755 root root -
-d /run/lock/lockdev 0775 root lock -
-
 d /run/user 0755 root root 10d
 F /run/utmp 0664 root utmp -