Listing 5

// In ReclsFileSearchDirectoryNode_unix.cpp
#if 1
  m_dnode = . . . // UNIX form of statement
#else
  m_dnode = . . . // Win32 form of statement - introduced here
#endif

// In ReclsFileSearchDirectoryNode_win32.cpp
#if 0
  m_dnode = . . . // UNIX form of statement - introduced here
#else
  m_dnode = . . . // Win32 form of statement
#endif