extern uschar *acl_smtp_data; /* ACL run after DATA received */
#ifndef DISABLE_PRDR
extern uschar *acl_smtp_data_prdr; /* ACL run after DATA received if in PRDR mode*/
-const extern pcre2_code *regex_PRDR; /* For recognizing PRDR settings */
+extern const pcre2_code *regex_PRDR; /* For recognizing PRDR settings */
#endif
#ifndef DISABLE_DKIM
extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */
#ifdef SUPPORT_I18N
extern BOOL message_smtputf8; /* Internationalized mail handling */
extern int message_utf8_downconvert; /* convert from utf8 */
-const extern pcre2_code *regex_UTF8; /* For recognizing SMTPUTF8 settings */
+extern const pcre2_code *regex_UTF8; /* For recognizing SMTPUTF8 settings */
#endif
extern uschar message_subdir[]; /* Subdirectory for messages */
extern const uschar *message_reference;/* Reference for error messages */