Transition to pulling open-vcdiff from repository, instead of using snapshot...

sdch/open_vcdiff/depot/opensource/open-vcdiff/src/logging.h

-// Copyright 2008 Google Inc.
-// Author: Lincoln Smith
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef OPEN_VCDIFF_LOGGING_H_
-#define OPEN_VCDIFF_LOGGING_H_
-
-#include <config.h>
-#include <iostream>
-#include <vector>
-
-// Windows API defines ERROR
-#ifdef ERROR
-#undef ERROR
-#endif  // ERROR
-
-namespace open_vcdiff {
-
-enum LogLevel {
-  INFO,
-  WARNING,
-  ERROR,
-  FATAL
-};
-
-#ifndef NDEBUG
-#define DFATAL FATAL
-#else  // NDEBUG
-#define DFATAL ERROR
-#endif  // !NDEBUG
-
-extern bool g_fatal_error_occurred;
-extern void (*ExitFatal)();
-
-inline std::ostream& LogMessage(LogLevel level, const char* level_name) {
-  if (level == FATAL) {
-    g_fatal_error_occurred = true;
-  }
-  return std::cerr << level_name << ": ";
-}
-
-inline void CheckFatalError() {
-  if (g_fatal_error_occurred) {
-    g_fatal_error_occurred = false;
-    (*ExitFatal)();
-  }
-}
-
-}  // namespace open_vcdiff
-
-#define LOG(level)   LogMessage(open_vcdiff::level, #level)
-#define LOG_ENDL     std::endl; \
-                     open_vcdiff::CheckFatalError();
-
-#endif  // OPEN_VCDIFF_LOGGING_H_