On Mon, Jul 23, 2012 at 10:51:46PM +0300, Kirill A. Shutemov wrote:
> On Mon, Jul 23, 2012 at 08:18:49PM +0200, Arnaldo Carvalho de Melo wrote:
> > Em Mon, Jul 23, 2012 at 09:16:08PM +0300, Kirill A. Shutemov escreveu:
> > > On Mon, Jul 23, 2012 at 08:02:44PM +0200, Arnaldo Carvalho de Melo wrote:
> > > > Em Mon, Jul 23, 2012 at 06:00:44PM +0300, Kirill A. Shutemov escreveu:
> > > > > util/parse-events.c:29:5: error: redundant redeclaration of
> > > > > ‘parse_events_parse’ [-Werror=redundant-decls]
> > > > > util/parse-events-bison.h:99:5: note: previous declaration of
> > > > > ‘parse_events_parse’ was here
> > > > > cc1: all warnings being treated as errors
> >
> > > > Causes the build to fail for me:
> >
> > > > cc1: warnings being treated as errors
> > > > util/parse-events.c: In function ‘parse_events__scanner’:
> > > > util/parse-events.c:701: error: implicit declaration of function
> > > > ‘parse_events_parse’
> > > > util/parse-events.c:701: error: nested extern declaration of
> > > > ‘parse_events_parse’
> > > > make: *** [/home/acme/git/build/perf/util/parse-events.o] Error 1
> > > > make: *** Waiting for unfinished jobs....
> > > > make: Leaving directory `/home/git/linux/tools/perf'
> > >
> > > What bison version do you have?
> >
> > [acme@sandy linux]$ rpm -q bison
> > bison-2.4.1-5.el6.x86_64
> >
>
> Could you test this one?
Err... Sorry, it breaks build with O=...
Fixed version:
>From 14f476dddcb36bca93a50ef1a3341e2c60836e0a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kir...@shutemov.name>
Date: Mon, 23 Jul 2012 17:39:11 +0300
Subject: [PATCH 1/2] perf: fix build error
MIME-Version: 1.0
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Bison 2.6 started to generate parse_events_parse() declaration in
header. In this case we have redundant redeclaration:
util/parse-events.c:29:5: error: redundant redeclaration of
‘parse_events_parse’ [-Werror=redundant-decls]
In file included from util/parse-events.c:14:0:
util/parse-events-bison.h:99:5: note: previous declaration of
‘parse_events_parse’ was here
cc1: all warnings being treated as errors
Let's disable -Wredundant-decls for util/parse-events.c since it
includes header we can't control.
Signed-off-by: Kirill A. Shutemov <kir...@shutemov.name>
---
tools/perf/Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 75d74e5..1091192 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -803,6 +803,9 @@ $(OUTPUT)ui/browsers/map.o: ui/browsers/map.c
$(OUTPUT)PERF-CFLAGS
$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS)
-DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+$(OUTPUT)util/parse-events.o: util/parse-events.c $(OUTPUT)PERF-CFLAGS
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Wno-redundant-decls $<
+
$(OUTPUT)util/scripting-engines/trace-event-perl.o:
util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS)
-Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
--
Kirill A. Shutemov
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