case EOP_STR2B64:
case EOP_BASE64:
{
+#ifdef SUPPORT_TLS
uschar * s = vp && *(void **)vp->value
? tls_cert_der_b64(*(void **)vp->value)
: b64encode(sub, Ustrlen(sub));
+#else
+ uschar * s = b64encode(sub, Ustrlen(sub));
+#endif
yield = string_cat(yield, &size, &ptr, s, Ustrlen(s));
continue;
}