fix mac

tools/bbh_shootout.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "BenchTimer.h"
 #include "LazyDecodeBitmap.h"
 #include "PictureBenchmark.h"
@@ skipping 292 matching lines @@
     }
 
     SkScalar cpuTime = SkDoubleToScalar(atof(timerResult.c_str() + pos + sizeof(findStr) - 1));
     if (cpuTime == 0) {  // atof returns 0.0 on error.
         SkDebugf("Unable to read value from timer result.\n");
         return false;
     }
     return true;
 }
 
-static int tool_main(int argc, char** argv) {
+int tool_main(int argc, char** argv);
+int tool_main(int argc, char** argv) {
     SkAutoGraphics ag;
     SkString usage;
     usage.printf("Usage: filename [filename]*\n");
 
     if (argc < 2) {
         SkDebugf("%s\n", usage.c_str());
         return -1;
     }
 
     Histogram* histograms[kNumBenchmarks];
@@ skipping 48 matching lines @@
         pbLine.appendf("\n");
         recLine.appendf("\n");
         playbackOut.writeText(pbLine.c_str());
         recordOut.writeText(recLine.c_str());
     }
     SkDebugf("\nWrote data to gnuplot-readable files: %s %s\n", pbTitle, recTitle);
 
     return 0;
 }
 
+#if !defined(SK_BUILD_FOR_IOS) && !defined(SK_BUILD_FOR_NACL)
 int main(int argc, char** argv) {
     return tool_main(argc, argv);
 }
+#endif
 
+