+LTTng 0.152 few SH build fixes.<br>
+LTTng 0.153 updates trace clock (minor fix).<br>
+LTTng 0.156 adds a required compiler barrier to the trace-clock-32-to-64
+update-side.<br>
+LTTng 0.157 fixes the trace-clock-32-to-64 mutex to spinlock transition
+patch.<br>