add skeleton OER stubs
diff --git a/skeletons/GeneralizedTime.c b/skeletons/GeneralizedTime.c
index 61cbf44..ce70260 100644
--- a/skeletons/GeneralizedTime.c
+++ b/skeletons/GeneralizedTime.c
@@ -188,6 +188,13 @@
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_GeneralizedTime_tags,
sizeof(asn_DEF_GeneralizedTime_tags)