linux-kernel - [tip:perf/core] perf tools: Fix makefile generation under dash

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Date:	Tue, 21 Jul 2015 02:35:54 -0700
From:	tip-bot for Sergei Trofimovich <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	tglx@...utronix.de, mingo@...nel.org, acme@...hat.com,
	adrian.hunter@...el.com, jolsa@...nel.org, hpa@...or.com,
	siarheit@...gle.com, namhyung@...nel.org,
	linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl
Subject: [tip:perf/core] perf tools: Fix makefile generation under dash

Commit-ID:  52c0a18b9010fb19d10889e8a00aa784197d357c
Gitweb:     http://git.kernel.org/tip/52c0a18b9010fb19d10889e8a00aa784197d357c
Author:     Sergei Trofimovich <siarheit@...gle.com>
AuthorDate: Sun, 19 Jul 2015 10:30:05 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 20 Jul 2015 17:49:50 -0300

perf tools: Fix makefile generation under dash

Under dash 'echo -n' yields '-n' to stdout.  Use printf "" instead.

Signed-off-by: Sergei Trofimovich <siarheit@...gle.com>
Acked-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1437298205-29305-1-git-send-email-siarheit@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/config/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a9b93d1..8768f84 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -11,7 +11,7 @@ ifneq ($(obj-perf),)
 obj-perf := $(abspath $(obj-perf))/
 endif
 
-$(shell echo -n > $(OUTPUT).config-detected)
+$(shell printf "" > $(OUTPUT).config-detected)
 detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
 detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
 
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