linux-kernel - [PATCH] perfcounter: don't keep warnings treated as errors as default

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Message-Id: <1244135688-5542-1-git-send-email-fweisbec@gmail.com>
Date:	Thu,  4 Jun 2009 19:14:48 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH] perfcounter: don't keep warnings treated as errors as default

Building userspace perfcounter tools gives such warning:

cc1: warnings being treated as errors
builtin-top.c: In function ‘print_sym_table’:
builtin-top.c:207: erreur: ignoring return value of ‘write’, declared with attribute warn_unused_result
make: *** [builtin-top.o] Erreur 1

It's about checking if a write was successful on stdout.
The real point here is that treating each warning as errors by default
can be avoided, especially for such harmless warning.

This patch drop -Werror from perfcounter tools makefile.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 Documentation/perf_counter/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/Documentation/perf_counter/Makefile b/Documentation/perf_counter/Makefile
index c9ec458..9b42897 100644
--- a/Documentation/perf_counter/Makefile
+++ b/Documentation/perf_counter/Makefile
@@ -159,7 +159,7 @@ uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
 
 # CFLAGS and LDFLAGS are for the users to override from the command line.
 
-CFLAGS = -ggdb3 -Wall -Werror -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6 -march=native
+CFLAGS = -ggdb3 -Wall -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -std=gnu99 -Wdeclaration-after-statement -O6 -march=native
 LDFLAGS = -lpthread -lrt -lelf
 ALL_CFLAGS = $(CFLAGS)
 ALL_LDFLAGS = $(LDFLAGS)
-- 
1.6.2.3

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