const unsigned char *in, size_t len);
# endif /* OPENSSL_NO_OCB */
+# ifndef OPENSSL_NO_SIV
+# define aes_t4_siv_init_key aes_siv_init_key
+# define aes_t4_siv_cipher aes_siv_cipher
+# endif /* OPENSSL_NO_SIV */
+
# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \