add skeleton OER stubs
diff --git a/skeletons/PrintableString.c b/skeletons/PrintableString.c
index 574cbfe..48ee751 100644
--- a/skeletons/PrintableString.c
+++ b/skeletons/PrintableString.c
@@ -64,6 +64,13 @@
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_PrintableString_tags,
sizeof(asn_DEF_PrintableString_tags)