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perf trace/scripting: Silence PERL_EMBED_* backtick errors

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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@gmail.com>
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: anton@samba.org
Cc: hch@infradead.org
LKML-Reference: <1259565529-6407-2-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Tom Zanussi 2009-11-30 01:18:46 -06:00 committed by Ingo Molnar
parent cf72344d1a
commit f8be4231f8
1 changed files with 2 additions and 2 deletions
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4
tools/perf/Makefile
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@ -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