#define is_symlink(statp) (((statp)->st_mode & S_IFMT) == S_IFLNK)
#define is_regularfile(statp) (((statp)->st_mode & S_IFMT) == S_IFREG)
-#ifdef MSDOS
+#if 1 /* assume that fopen() will accepts "b" as binary mode on all system. */
#define WRITE_BINARY "wb"
#define READ_BINARY "rb"
#else