extern X509V3_EXT_METHOD v3_bcons, v3_nscert, v3_key_usage, v3_ext_ku;
extern X509V3_EXT_METHOD v3_pkey_usage_period, v3_sxnet, v3_info, v3_sinfo;
extern X509V3_EXT_METHOD v3_ns_ia5_list[], v3_alt[], v3_skey_id, v3_akey_id;
-extern X509V3_EXT_METHOD v3_crl_num, v3_crl_reason, v3_crl_invdate, v3_cpols, v3_crld;
+extern X509V3_EXT_METHOD v3_crl_num, v3_crl_reason, v3_crl_invdate;
+extern X509V3_EXT_METHOD v3_delta_crl, v3_cpols, v3_crld;
extern X509V3_EXT_METHOD v3_ocsp_nonce, v3_ocsp_accresp, v3_ocsp_acutoff;
extern X509V3_EXT_METHOD v3_ocsp_crlid, v3_ocsp_nocheck, v3_ocsp_serviceloc;
extern X509V3_EXT_METHOD v3_crl_hold;
&v3_akey_id,
&v3_crld,
&v3_ext_ku,
+&v3_delta_crl,
&v3_crl_reason,
#ifndef OPENSSL_NO_OCSP
&v3_crl_invdate,