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buildroot/buildroot-2016.08.1/package/powertop/0004-add-missing-stdio.h-header.patch 1013 Bytes
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  From e6cfd977c81b335664db1d5d3d6b5488c245e30f Mon Sep 17 00:00:00 2001
  From: Romain Naour <romain.naour@openwide.fr>
  Date: Sat, 8 Aug 2015 18:26:15 +0200
  Subject: [PATCH] add missing stdio.h header
  MIME-Version: 1.0
  Content-Type: text/plain; charset=UTF-8
  Content-Transfer-Encoding: 8bit
  
  snprinf is defined in stdio.h.
  
  Fixes:
  perf/perf_bundle.cpp: In function ‘void parse_event_format(const char*)’:
  perf/perf_bundle.cpp:141:75: error: ‘sprintf’ was not declared in this scope
    sprintf(file, "/sys/kernel/debug/tracing/events/%s/%s/format", sys, event);
  
  Signed-off-by: Romain Naour <romain.naour@openwide.fr>
  ---
   src/perf/perf_bundle.cpp | 1 +
   1 file changed, 1 insertion(+)
  
  diff --git a/src/perf/perf_bundle.cpp b/src/perf/perf_bundle.cpp
  index cf1ae11..3d216ff 100644
  --- a/src/perf/perf_bundle.cpp
  +++ b/src/perf/perf_bundle.cpp
  @@ -31,6 +31,7 @@
   #include <sys/stat.h>
   #include <fcntl.h>
   #include <unistd.h>
  +#include <stdio.h>
   
   #include "perf_bundle.h"
   #include "perf_event.h"
  -- 
  2.4.3