typedef int BIO_info_cb(BIO *, int, int);
typedef BIO_info_cb bio_info_cb; /* backward compatibility */
-DEFINE_STACK_OF(BIO)
+DEFINE_OR_DECLARE_STACK_OF(BIO)
/* Prefix and suffix callback in ASN1 BIO */
typedef int asn1_ps_func (BIO *b, unsigned char **pbuf, int *plen,