This patch adds shutdown commands specific to NixOS, as NixOS does not have
a /sbin or /usr/sbin directory. In order not to have a dependency on the
package that provides "shutdown" when in an environment other than NixOS,
we'll make it depend on /var/run/current-system.

Note: this patch does not compromise system security. Other systems than
NixOS should have already shutdown in the earlier directories being searched,
and otherwise /var/run is writable only be root.

--- ConsoleKit-0.4.1/tools/linux/ck-system-restart.org	2012-02-13 11:29:57.352902568 +0100
+++ ConsoleKit-0.4.1/tools/linux/ck-system-restart	2012-02-13 11:43:27.593317712 +0100
@@ -7,6 +7,9 @@
 elif [ -x "/usr/sbin/shutdown" ] ; then
 	/usr/sbin/shutdown -r now
 	exit $?
+elif [ -x "/var/run/current-system/sw/sbin/shutdown" ] ; then
+    /var/run/current-system/sw/sbin/shutdown -r now
+    exit $?
 else
 	exit 1
 fi
--- ConsoleKit-0.4.1/tools/linux/ck-system-stop.org	2012-02-13 11:30:06.228950934 +0100
+++ ConsoleKit-0.4.1/tools/linux/ck-system-stop	2012-02-13 11:44:12.664563304 +0100
@@ -7,6 +7,9 @@
 elif [ -x "/usr/sbin/shutdown" ] ; then
 	/usr/sbin/shutdown -h now
 	exit $?
+elif [ -x "/var/run/current-system/sw/sbin/shutdown" ] ; then
+    /var/run/current-system/sw/sbin/shutdown -h now
+    exit $?
 else
 	exit 1
 fi