[PATCH 2/2] perf tools: Always try to build libtraceevent

[Namhyung Kim]

Although perf depends on the libtraceevent, it cannot know
when it needs to be rebuilt. So just try to rebuild it
always in order to make sure we use the latest version.

While at it, silence annoying directory change messages.

Signed-off-by: Namhyung Kim <namhyung.kim@xxxxxxx>
---
 tools/perf/Makefile |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 022845e51937..a3d2324b9cd7 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -821,7 +821,7 @@ $(LIB_FILE): $(LIB_OBJS)
 
 # libtraceevent.a
 $(LIBTRACEEVENT):
-	$(MAKE) -C $(TRACE_EVENT_DIR) $(COMMAND_O) libtraceevent.a
+	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) $(COMMAND_O) libtraceevent.a
 
 help:
 	@echo 'Perf make targets:'
@@ -969,6 +969,6 @@ clean:
 	$(RM) $(OUTPUT)util/*-{bison,flex}*
 	$(python-clean)
 
-.PHONY: all install clean strip
+.PHONY: all install clean strip $(LIBTRACEEVENT)
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
 .PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS
-- 
1.7.10.1

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