[PATCH 13/20] perf tools: Fix GNU-only grep usage in Makefile

[Arnaldo Carvalho de Melo]

From: John Spencer <maillist-linux@xxxxxxxxxxx>

This makes it work with non-GNU grep's as well.

Signed-off-by: John Spencer <maillist-linux@xxxxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: http://thread.gmane.org/gmane.linux.kernel.perf.user/1686
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/config/utilities.mak | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 4d985e0f03f5..7076a62d0ff7 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -132,7 +132,7 @@ endef
 #
 # Usage: bool-value = $(call is-absolute,path)
 #
-is-absolute = $(shell echo $(shell-sq) | grep ^/ -q && echo y)
+is-absolute = $(shell echo $(shell-sq) | grep -q ^/ && echo y)
 
 # lookup
 #
-- 
1.9.3

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