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Date: Wed, 22 Aug 2012 10:38:12 +0200
From: Jiri Olsa <jolsa@redhat.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>,
        linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
        Ben Hutchings <ben@decadent.org.uk>,
        Borislav Petkov <borislav.petkov@amd.com>,
        Corey Ashford <cjashfor@linux.vnet.ibm.com>,
        David Ahern <dsahern@gmail.com>, Feng Tang <feng.tang@intel.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Mike Galbraith <efault@gmx.de>, Namhyung Kim <namhyung@gmail.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Namhyung Kim <namhyung.kim@lge.com>, Paul Mackerras <paulus@samba.org>,
        Pekka Enberg <penberg@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Robert Richter <robert.richter@amd.com>,
        Sedat Dilek <sedat.dilek@gmail.com>,
        Stephane Eranian <eranian@google.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ulrich Drepper <drepper@gmail.com>, arnaldo.melo@gmail.com,
        Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH] perf tools: Fix 'No libunwind found' make warning message
Message-ID: <20120822083812.GC1003@krava.brq.redhat.com>
References: <1345479985-18669-1-git-send-email-acme@infradead.org>
 <20120821093231.GA12385@gmail.com>
 <20120821093628.GA981@krava.brq.redhat.com>
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On Tue, Aug 21, 2012 at 11:36:28AM +0200, Jiri Olsa wrote:
> On Tue, Aug 21, 2012 at 11:32:31AM +0200, Ingo Molnar wrote:
> > 
> > * Arnaldo Carvalho de Melo <acme@infradead.org> wrote:
> > 
> 
> SNIP
> 
> > 
> > One minor observation, the Makefile tells us:
> > 
> > Makefile:496: No libunwind found. Please install libunwind >= 0.99
> > 
> > I guess that should be libunwind-dev[el], right? Plain libunwind 
> > is not enough.
> 
> right, will fix it
> 
> thanks,
> jirka

---
Changing error message when libunwind support is not found
to inform properly to install libunwind-dev[el] package.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6bd888d..218cdb5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -493,7 +493,7 @@ endif
 
 FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(ALL_CFLAGS) $(LIBUNWIND_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
 ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND)),y)
-	msg := $(warning No libunwind found. Please install libunwind >= 0.99);
+	msg := $(warning No libunwind found, disables post unwind support. Please install libunwind-dev[el] >= 0.99);
 	NO_LIBUNWIND := 1
 endif # Libunwind support
 endif # NO_LIBUNWIND
-- 
1.7.11.4