Stop build if CONFIG_TRACEPOINTS is not set

Previously it just tries to compile with zero modules, which is
confusing if you thought you had configured everything correctly. Now it
throws an error which tells which went wrong.

Fixes #506

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/Makefile b/Makefile
index 39672afc61b29e506e8ff4fb66eb486f00fd2177..fcb14f2fcefc45710e67d50b33f887548ec459d6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,13 @@
 #
 
 ifneq ($(KERNELRELEASE),)
+
+ifeq ($(CONFIG_TRACEPOINTS),)
+
+$(error You need to enable CONFIG_TRACEPOINTS in kernel!)
+
+endif #CONFIG_TRACEPOINTS
+
 ifneq ($(CONFIG_TRACEPOINTS),)
 
 obj-m += lttng-ring-buffer-client-discard.o