liburcu: new package

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -376,6 +376,7 @@ source "package/libglib2/Config.in"
 source "package/libical/Config.in"
 source "package/libnspr/Config.in"
 source "package/libsigc/Config.in"
+source "package/liburcu/Config.in"
 source "package/orc/Config.in"
 source "package/poco/Config.in"
 source "package/startup-notification/Config.in"

package/liburcu/Config.in

@@ -0,0 +1,9 @@
+config BR2_PACKAGE_LIBURCU
+	bool "liburcu"
+	help
+	  Userspace implementation of the Read-Copy-Update (RCU)
+	  synchronization mechanism. This library is mainly used by
+	  the LTTng tracing infrastructure, but can be used for other
+	  purposes as well.
+
+	  http://lttng.org/urcu

package/liburcu/liburcu.mk

@@ -0,0 +1,7 @@
+LIBURCU_VERSION = 0.6.7
+LIBURCU_SITE    = http://lttng.org/files/bundles/20111214/
+LIBURCU_SOURCE  = userspace-rcu-$(LIBURCU_VERSION).tar.bz2
+
+LIBURCU_INSTALL_STAGING = YES
+
+$(eval $(call AUTOTARGETS))