lttng-ust: Add version 2.4.0

This updates lttng-ust to 2.4.0, codenamed Époque Opaque, needed
for interoperability with lttng-modules and the 3.14 (dev) kernel.

(From OE-Core rev: b4ae73a86ccf62a508faa76dc349bbab02540c37)

Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/lttng/lttng-ust_2.4.0.bb

@@ -0,0 +1,31 @@
+SUMMARY = "Linux Trace Toolkit Userspace Tracer 2.x"
+DESCRIPTION = "The LTTng UST 2.x package contains the userspace tracer library to trace userspace codes."
+HOMEPAGE = "http://lttng.org/ust"
+BUGTRACKER = "https://bugs.lttng.org/projects/lttng-ust"
+
+LICENSE = "LGPLv2.1+ & BSD & GPLv2"
+LIC_FILES_CHKSUM = "file://COPYING;md5=c963eb366b781252b0bf0fdf1624d9e9 \
+                    file://snprintf/snprintf.c;endline=32;md5=d3d544959d8a3782b2e07451be0a903c \
+                    file://snprintf/various.h;endline=31;md5=89f2509b6b4682c4fc95255eec4abe44"
+
+inherit autotools lib_package
+
+DEPENDS = "liburcu util-linux"
+
+# For backwards compatibility after rename
+RPROVIDES_${PN} = "lttng2-ust"
+RREPLACES_${PN} = "lttng2-ust"
+RCONFLICTS_${PN} = "lttng2-ust"
+
+SRCREV = "5ba5bf7fba804d2de773ae1c71106a8ed856c56a"
+PV = "2.4.0"
+PE = "2"
+
+SRC_URI = "git://git.lttng.org/lttng-ust.git;branch=stable-2.4 \
+	   "
+
+S = "${WORKDIR}/git"
+
+do_configure_prepend () {
+	( cd ${S}; ${S}/bootstrap )
+}