linux-kernel - [PATCH 2/2] perf build: warn if libtracefs is not found

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Message-ID: <20240627150606.2224888-2-amadio@gentoo.org>
Date: Thu, 27 Jun 2024 17:06:06 +0200
From: Guilherme Amadio <amadio@...too.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	Guilherme Amadio <amadio@...too.org>
Subject: [PATCH 2/2] perf build: warn if libtracefs is not found

Signed-off-by: Guilherme Amadio <amadio@...too.org>
---
 tools/perf/Makefile.config | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 987b48f242d3..e99afc7eb4b5 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1204,6 +1204,8 @@ ifneq ($(NO_LIBTRACEEVENT),1)
     LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
     LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
     CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
+  else
+    $(warning libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
   endif
 endif
 
-- 
2.45.2