[PATCH] perf tools: Fix 'No libunwind found' make warning message

[Jiri Olsa]

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@xxxxxxxxxxxxx> 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@xxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
 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

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