+AC_ARG_ENABLE(perf-events, [ --enable-perf-events Enable using `perf` for profiling on Linux], test_perf_events=$enableval, test_perf_events=no)
+if test "x$test_perf_events" == "xyes"; then
+ AC_DEFINE(ENABLE_PERF_EVENTS, 1, [Enable using `perf` for profiling on Linux])
+ AC_SUBST(ENABLE_PERF_EVENTS)
+fi
+