Fix Mac clang linker

bench/nanobench.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "nanobench.h"
@@ skipping 101 matching lines @@
 DEFINE_bool(bbh, true, "Build a BBH for SKPs?");
 DEFINE_bool(mpd, true, "Use MultiPictureDraw for the SKPs?");
 DEFINE_bool(loopSKP, true, "Loop SKPs like we do for micro benches?");
 DEFINE_int32(flushEvery, 10, "Flush --outResultsFile every Nth run.");
 DEFINE_bool(resetGpuContext, true, "Reset the GrContext before running each test.");
 DEFINE_bool(gpuStats, false, "Print GPU stats after each gpu benchmark?");
 DEFINE_bool(gpuStatsDump, false, "Dump GPU states after each benchmark to json");
 DEFINE_bool(keepAlive, false, "Print a message every so often so that we don't time out");
 DEFINE_string(useThermalManager, "0,1,10,1000", "enabled,threshold,sleepTimeMs,TimeoutMs for "
                                                 "thermalManager\n");
-DEFINE_bool(simpleCodec, false, "Only decode images to N32 opaque or premul");
 
 DEFINE_string(sourceType, "",
         "Apply usual --match rules to source type: bench, gm, skp, image, etc.");
 DEFINE_string(benchType,  "",
         "Apply usual --match rules to bench type: micro, recording, playback, skcodec, etc.");
 
 static double now_ms() { return SkTime::GetNSecs() * 1e-6; }
 
 static SkString humanize(double ms) {
     if (FLAGS_verbose) return SkStringPrintf("%llu", (uint64_t)(ms*1e6));
@@ skipping 1166 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif