[PATCH] perf: Remove brace expansion from clean target

[Palmer Cox]

The clean target uses brace expansion to remove some generated
files. However, the default shells on many systems do not
support this feature resulting in some generated files not
being removed by clean.

Signed-off-by: Palmer Cox <p@xxxxxxxxxxx>
---
 tools/perf/Makefile |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 75d74e5..842cf67 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -979,7 +979,8 @@ clean:
 	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
 	$(MAKE) -C Documentation/ clean
 	$(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
-	$(RM) $(OUTPUT)util/*-{bison,flex}*
+	$(RM) $(OUTPUT)util/*-bison*
+	$(RM) $(OUTPUT)util/*-flex*
 	$(python-clean)
 
 .PHONY: all install clean strip $(LIBTRACEEVENT)
-- 
1.7.9.5

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