value should inialization when defined

/**
 * Win32 doesn't have realpath, so use fallback implementation in that case,
 * otherwise this just calls through to realpath
 */
char* saferealpath(const char* path, char* resolved_path) {
#ifdef _WIN32
  char buf[MAX_PATH];
  char* basename;
  DWORD len = GetFullPathNameA(path, MAX_PATH, buf, &basename);
  if (len == 0 || len > MAX_PATH - 1) {
    strcpy(resolved_path, path);
  } else {
    strcpy(resolved_path, buf);
  }

  // Replace backslashes with forward slashes so the
  // rest of the code behaves correctly.
  size_t resolved_len = strlen(resolved_path);
  for (size_t i = 0; i < resolved_len; i++) {
    if (resolved_path[i] == '\\') {
      resolved_path[i] = '/';
    }
  }
  return resolved_path;
#else
  return realpath(path, resolved_path);
#endif
}