linux-kernel - [PATCH 1/4] perf trace/scripting: silence PERL_EMBED

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Date:	Mon, 30 Nov 2009 01:18:46 -0600
From:	Tom Zanussi <tzanussi@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, fweisbec@...il.com, rostedt@...dmis.org,
	anton@...ba.org, hch@...radead.org
Subject: [PATCH 1/4] perf trace/scripting: silence PERL_EMBED_* backtick errors

The backtick shell substitutions for PERL_EMBED_LDOPT/CCOPT make a lot
of noise on stderr if Embed.pm isn't installed - this silences them.

Signed-off-by: Tom Zanussi <tzanussi@...il.com>
---
 tools/perf/Makefile |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 8ad57b5..d62a2d7 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -490,8 +490,8 @@ else
 	LIB_OBJS += util/probe-finder.o
 endif
 
-PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts`
-PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts`
+PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null`
+PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 
 ifneq ($(shell sh -c "(echo '\#include <EXTERN.h>'; echo '\#include <perl.h>'; echo 'int main(void) { perl_alloc(); return 0; }') | $(CC) -x c - $(PERL_EMBED_CCOPTS) -o /dev/null $(PERL_EMBED_LDOPTS) > /dev/null 2>&1 && echo y"), y)
 	BASIC_CFLAGS += -DNO_LIBPERL
-- 
1.6.4.GIT

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