Simplify the logic of accessing codec function for specific TYPE
diff --git a/skeletons/BMPString.c b/skeletons/BMPString.c
index cca7d72..26320b0 100644
--- a/skeletons/BMPString.c
+++ b/skeletons/BMPString.c
@@ -13,7 +13,7 @@
 	(ASN_TAG_CLASS_UNIVERSAL | (30 << 2)),	/* [UNIVERSAL 30] IMPLICIT ...*/
 	(ASN_TAG_CLASS_UNIVERSAL | (4 << 2))	/* ... OCTET STRING */
 };
-static asn_OCTET_STRING_specifics_t asn_SPC_BMPString_specs = {
+asn_OCTET_STRING_specifics_t asn_SPC_BMPString_specs = {
 	sizeof(BMPString_t),
 	offsetof(BMPString_t, _asn_ctx),
 	ASN_OSUBV_U16	/* 16-bits character */