-#define C_Block des_cblock
-#define Key_schedule des_key_schedule
-#ifdef KERBEROS
-#define ENCRYPT DES_ENCRYPT
-#define DECRYPT DES_DECRYPT
-#endif
-#define KEY_SZ DES_KEY_SZ
-#define string_to_key des_string_to_key
-#define read_pw_string des_read_pw_string
-#define random_key des_random_key
-#define pcbc_encrypt des_pcbc_encrypt
-#define set_key des_set_key
-#define key_sched des_key_sched
-#define ecb_encrypt des_ecb_encrypt
-#define cbc_encrypt des_cbc_encrypt
-#define ncbc_encrypt des_ncbc_encrypt
-#define xcbc_encrypt des_xcbc_encrypt
-#define cbc_cksum des_cbc_cksum
-#define quad_cksum des_quad_cksum
-
-/* For compatibility with the MIT lib - eay 20/05/92 */
-typedef des_key_schedule bit_64;
-#define des_fixup_key_parity des_set_odd_parity
-#define des_check_key_parity check_parity
-
-OPENSSL_EXTERN int des_check_key; /* defaults to false */
-OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */
-OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */
+OPENSSL_DECLARE_GLOBAL(int,des_check_key); /* defaults to false */
+#define des_check_key OPENSSL_GLOBAL_REF(des_check_key)
+OPENSSL_DECLARE_GLOBAL(int,des_rw_mode); /* defaults to DES_PCBC_MODE */
+#define des_rw_mode OPENSSL_GLOBAL_REF(des_rw_mode)