From: Tomas Glozar <tglo...@redhat.com>

If libcpupower is present, set HAVE_LIBCPUPOWER_SUPPORT macro to allow
features depending on libcpupower in rtla.

Signed-off-by: Tomas Glozar <tglo...@redhat.com>
---
 tools/tracing/rtla/Makefile        |  2 ++
 tools/tracing/rtla/Makefile.config | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/tools/tracing/rtla/Makefile b/tools/tracing/rtla/Makefile
index b5878be36125..a6a7dee16622 100644
--- a/tools/tracing/rtla/Makefile
+++ b/tools/tracing/rtla/Makefile
@@ -32,8 +32,10 @@ DOCSRC               := ../../../Documentation/tools/rtla/
 
 FEATURE_TESTS  := libtraceevent
 FEATURE_TESTS  += libtracefs
+FEATURE_TESTS  += libcpupower
 FEATURE_DISPLAY        := libtraceevent
 FEATURE_DISPLAY        += libtracefs
+FEATURE_DISPLAY        += libcpupower
 
 ifeq ($(V),1)
   Q            =
diff --git a/tools/tracing/rtla/Makefile.config 
b/tools/tracing/rtla/Makefile.config
index 0b7ecfb30d19..5f6f537c9728 100644
--- a/tools/tracing/rtla/Makefile.config
+++ b/tools/tracing/rtla/Makefile.config
@@ -42,6 +42,16 @@ else
   $(info libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
 endif
 
+$(call feature_check,libcpupower)
+ifeq ($(feature-libcpupower), 1)
+  $(call detected,CONFIG_LIBCPUPOWER)
+  $(call lib_setup,cpupower)
+  CFLAGS += -DHAVE_LIBCPUPOWER_SUPPORT
+else
+  $(info libcpupower is missing, building without --deepest-idle-state 
support.)
+  $(info Please install libcpupower-dev/kernel-tools-libs-devel)
+endif
+
 ifeq ($(STOP_ERROR),1)
   $(error Please, check the errors above.)
 endif
-- 
2.46.0


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