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diff --git a/o3d/converter_edge/cross/verifier_main.cc b/o3d/converter_edge/cross/verifier_main.cc
new file mode 100644
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+++ b/o3d/converter_edge/cross/verifier_main.cc
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+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+// This file contains the main routine for the converter that writes
+// out a scene graph as a JSON file.
+
+#include <string>
+#include <iostream>
+#include <vector>
+
+#include "base/at_exit.h"
+#include "base/file_path.h"
+#include "base/command_line.h"
+#include "converter_edge/cross/converter.h"
+#include "utils/cross/file_path_utils.h"
+
+using std::string;
+using std::wstring;
+
+#if defined(OS_WIN)
+int wmain(int argc, wchar_t **argv) {
+  // On Windows, CommandLine::Init ignores its arguments and uses
+  // GetCommandLineW.
+  CommandLine::Init(0, NULL);
+#endif
+#if defined(OS_LINUX)
+int main(int argc, char **argv) {
+  CommandLine::Init(argc, argv);
+#endif
+#if defined(OS_MACOSX)
+// The "real" main on Mac is in mac/converter_main.mm, so we can get
+// memory pool initialization for Cocoa.
+int CrossMain(int argc, char**argv) {
+  CommandLine::Init(argc, argv);
+#endif
+  // Create an at_exit_manager so that base singletons will get
+  // deleted properly.
+  base::AtExitManager at_exit_manager;
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+
+  FilePath in_filename, out_filename;
+
+  std::vector<std::wstring> values = command_line->GetLooseValues();
+  if (values.size() == 1) {
+    in_filename = o3d::WideToFilePath(values[0]);
+  } else if (values.size()== 2) {
+    in_filename = o3d::WideToFilePath(values[0]);
+    out_filename = o3d::WideToFilePath(values[1]);
+  } else {
+    std::cerr << "Usage: " << FilePath(argv[0]).BaseName().value()
+              << " [--no-condition] <infile.fx> [<outfile.fx>]\n";
+    return EXIT_FAILURE;
+  }
+
+  o3d::converter::Options options;
+  options.condition = !command_line->HasSwitch(L"no-condition");
+
+  if (!options.condition && !out_filename.empty()) {
+    std::cerr << "Warning: Ignoring output filename because conditioning "
+              << "has been turned off.\n";
+    out_filename = FilePath();
+  }
+
+  o3d::String errors;
+  bool result = o3d::converter::Verify(in_filename, out_filename, options,
+                                       &errors);
+  if (result) {
+    std::cerr << "Shader in '" << o3d::FilePathToUTF8(in_filename).c_str()
+              << "' has been validated." << std::endl;
+    return EXIT_SUCCESS;
+  } else {
+    std::cerr << errors.c_str() << std::endl;
+    std::cerr << "Shader in '" << o3d::FilePathToUTF8(in_filename).c_str()
+              << "' FAILED to be validated." << std::endl;
+    return EXIT_FAILURE;
+  }
+}