Add a build target for opus_compare.

third_party/opus/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/arm.gni")
 
 # If fixed point implementation shall be used (otherwise float).
 use_opus_fixed_point = cpu_arch == "arm" || cpu_arch == "arm64"
 
 # If ARM optimizations shall be used to accelerate performance.
@@ skipping 119 matching lines @@
         "OPUS_HAVE_RTCD",
       ]
 
       deps = [
         ":convert_rtcd_assembler",
       ]
     }
   }
 }
 
+executable("opus_compare") {

[wtc, 2014/12/10 20:27:35]

I copied the opus_demo code and changed "demo" to "compare". I don't know if
there is a better way to do this.

+  sources = [
+    "src/src/opus_compare.c",
+  ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+
+  include_dirs = [
+    "src/celt",
+    "src/silk",
+  ]
+
+  if (is_win) {
+    defines = [ "inline=__inline" ]
+  }
+  if (is_android) {
+    libs = [ "log" ]
+  }
+  if (is_clang) {
+    cflags = [ "-Wno-absolute-value" ]
+  }
+
+  deps = [
+    ":opus",
+  ]
+}
+
 executable("opus_demo") {
   sources = [
     "src/src/opus_demo.c",
   ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   include_dirs = [
     "src/celt",
     "src/silk",
   ]
 
   if (is_win) {
     defines = [ "inline=__inline" ]
   }
   if (is_android) {
     libs = [ "log" ]
   }
   if (is_clang) {
     cflags = [ "-Wno-absolute-value" ]
   }
 
   deps = [
     ":opus",
   ]
 }