add skeleton OER stubs
diff --git a/skeletons/ISO646String.c b/skeletons/ISO646String.c
index aa6bc62..a29a130 100644
--- a/skeletons/ISO646String.c
+++ b/skeletons/ISO646String.c
@@ -34,6 +34,13 @@
 	OCTET_STRING_decode_uper,
 	OCTET_STRING_encode_uper,
 #endif	/* ASN_DISABLE_PER_SUPPORT */
+#ifdef	ASN_DISABLE_OER_SUPPORT
+	0,
+	0,
+#else
+	0,
+	0,
+#endif  /* ASN_DISABLE_OER_SUPPORT */
 	0, /* Use generic outmost tag fetcher */
 	asn_DEF_ISO646String_tags,
 	sizeof(asn_DEF_ISO646String_tags)