Allow building on kernels < 2.6.33 (without perf event support)

[lttng-modules.git] / Makefile

diff --git a/Makefile b/Makefile
index 517d1f7502f49476be05c95c2b78b94d77d59b0c..9a0effcfc483d605a19547f8b488f64296772f10 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,9 @@ ltt-relay-objs :=  ltt-events.o ltt-debugfs-abi.o \
                        lttng-context-vppid.o
 
 ifneq ($(CONFIG_PERF_EVENTS),)
-ltt-relay-objs += lttng-context-perf-counters.o
+ltt-relay-objs += $(shell \
+       if [ $(VERSION) -ge 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 33 ] ; then \
+               echo "lttng-context-perf-counters.o" ; fi;)
 endif
 
 obj-m += probes/