Code changes to get the code to compile under GCC....

courgette/courgette_minimal_tool.cc

 // Copyright (c) 2009 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.
 
 // 'courgette_minimal_tool' is not meant to be a serious command-line tool.  It
 // has the minimum logic to apply a Courgette patch to a file.  The main purpose
 // is to monitor the code size of the patcher.
 
 #include <string>
 
@@ skipping 15 matching lines @@
   fprintf(stderr, "%s\n", message);
   PrintHelp();
   exit(1);
 }
 
 void Problem(const char* message) {
   fprintf(stderr, "%s\n", message);
   exit(1);
 }
 
+#if defined(OS_WIN)
 int wmain(int argc, const wchar_t* argv[]) {
+#else
+int main(int argc, const char* argv[]) {
+#endif
   if (argc != 4)
     UsageProblem("bad args");
 
   courgette::Status status =
       courgette::ApplyEnsemblePatch(argv[1], argv[2], argv[3]);
 
   if (status != courgette::C_OK) {
     if (status == courgette::C_READ_OPEN_ERROR) Problem("Can't open file.");
     if (status == courgette::C_WRITE_OPEN_ERROR) Problem("Can't open file.");
     if (status == courgette::C_READ_ERROR) Problem("Can't read from file.");
     if (status == courgette::C_WRITE_ERROR) Problem("Can't write to file.");
     Problem("patch failed.");
   }
 }