diff --git a/skeletons/NativeInteger.c b/skeletons/NativeInteger.c
index 2b136185..96c78756 100644
--- a/skeletons/NativeInteger.c
+++ b/skeletons/NativeInteger.c
@@ -91,8 +91,14 @@ NativeInteger_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
 	 */
 	{
 		INTEGER_t tmp;
+		union {
+			const void *constbuf;
+			void *nonconstbuf;
+		} unconst_buf;
 		long l;
-		(const uint8_t *)tmp.buf = (const uint8_t *)buf_ptr;
+
+		unconst_buf.constbuf = buf_ptr;
+		tmp.buf = (uint8_t *)unconst_buf.nonconstbuf;
 		tmp.size = length;
 
 		if(asn_INTEGER2long(&tmp, &l)) {
diff --git a/skeletons/NativeReal.c b/skeletons/NativeReal.c
index f2a3afce..f7755db1 100644
--- a/skeletons/NativeReal.c
+++ b/skeletons/NativeReal.c
@@ -93,8 +93,14 @@ NativeReal_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
 	 */
 	{
 		REAL_t tmp;
+		union {
+			const void *constbuf;
+			void *nonconstbuf;
+		} unconst_buf;
 		double d;
-		(const uint8_t *)tmp.buf = (const uint8_t *)buf_ptr;
+
+		unconst_buf.constbuf = buf_ptr;
+		tmp.buf = (uint8_t *)unconst_buf.nonconstbuf;
 		tmp.size = length;
 
 		if(asn_REAL2double(&tmp, &d)) {
diff --git a/skeletons/asn-decoder-template.c b/skeletons/asn-decoder-template.c
index 4a53bc94..5116529d 100644
--- a/skeletons/asn-decoder-template.c
+++ b/skeletons/asn-decoder-template.c
@@ -28,7 +28,6 @@ static void *data_decode_from_file(asn_TYPE_descriptor_t *asnTypeOfPDU,
 
        int opt_debug;	/* -d */
 static int opt_check;	/* -c */
-static int opt_print;	/* -p */
 static int opt_stack;	/* -s */
 static enum output_method {
 	OUT_NONE,	/* No pretty-printing */
diff --git a/skeletons/asn_SET_OF.c b/skeletons/asn_SET_OF.c
index 5e268c07..36706774 100644
--- a/skeletons/asn_SET_OF.c
+++ b/skeletons/asn_SET_OF.c
@@ -6,14 +6,12 @@
 #include <asn_SET_OF.h>
 #include <errno.h>
 
-typedef A_SET_OF(void) asn_set;
-
 /*
  * Add another element into the set.
  */
 int
 asn_set_add(void *asn_set_of_x, void *ptr) {
-	asn_set *as = (asn_set *)asn_set_of_x;
+	asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
 
 	if(as == 0 || ptr == 0) {
 		errno = EINVAL;		/* Invalid arguments */
@@ -43,7 +41,7 @@ asn_set_add(void *asn_set_of_x, void *ptr) {
 
 void
 asn_set_del(void *asn_set_of_x, int number, int _do_free) {
-	asn_set *as = (asn_set *)asn_set_of_x;
+	asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
 
 	if(as) {
 		void *ptr;
@@ -71,7 +69,7 @@ asn_set_del(void *asn_set_of_x, int number, int _do_free) {
  */
 void
 asn_set_empty(void *asn_set_of_x) {
-	asn_set *as = (asn_set *)asn_set_of_x;
+	asn_anonymous_set_ *as = _A_SET_FROM_VOID(asn_set_of_x);
 
 	if(as) {
 		if(as->array) {
diff --git a/skeletons/asn_internal.h b/skeletons/asn_internal.h
index 22011efa..4c16dc9e 100644
--- a/skeletons/asn_internal.h
+++ b/skeletons/asn_internal.h
@@ -80,4 +80,16 @@ static void ASN_DEBUG(const char *fmt, ...) { (void)fmt; };
 		if(cb("    ", 4, app_key) < 0) return -1;		\
 } while(0)
 
+/*
+ * Cope with implicit conversions to/from void.
+ */
+#include <asn_SET_OF.h>
+#include <asn_SEQUENCE_OF.h>
+typedef A_SEQUENCE_OF(void) asn_anonymous_sequence_;
+typedef A_SET_OF(void) asn_anonymous_set_;
+#define	_A_SET_FROM_VOID(ptr)		((asn_anonymous_set_ *)(ptr))
+#define	_A_CSET_FROM_VOID(ptr)		((const asn_anonymous_set_ *)(ptr))
+#define	_A_SEQUENCE_FROM_VOID(ptr)	((asn_anonymous_sequence_ *)(ptr))
+#define	_A_CSEQUENCE_FROM_VOID(ptr)	((const asn_anonymous_sequence_ *)(ptr))
+
 #endif	/* _ASN_INTERNAL_H_ */
diff --git a/skeletons/constr_SEQUENCE_OF.c b/skeletons/constr_SEQUENCE_OF.c
index 027f5ecc..d9763fc6 100644
--- a/skeletons/constr_SEQUENCE_OF.c
+++ b/skeletons/constr_SEQUENCE_OF.c
@@ -14,7 +14,7 @@ SEQUENCE_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
 	int tag_mode, ber_tlv_tag_t tag,
 	asn_app_consume_bytes_f *cb, void *app_key) {
 	asn_TYPE_member_t *elm = td->elements;
-	A_SEQUENCE_OF(void) *list;
+	asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(ptr);
 	size_t computed_size = 0;
 	ssize_t encoding_size = 0;
 	asn_enc_rval_t erval;
@@ -25,7 +25,6 @@ SEQUENCE_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
 	/*
 	 * Gather the length of the underlying members sequence.
 	 */
-	(void *)list = ptr;
 	for(edx = 0; edx < list->count; edx++) {
 		void *memb_ptr = list->array[edx];
 		erval = elm->type->der_encoder(elm->type, memb_ptr,
@@ -90,7 +89,7 @@ SEQUENCE_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
 	asn_enc_rval_t er;
         asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics;
 	asn_TYPE_member_t *element = td->elements;
-	A_SEQUENCE_OF(void) *list;
+	asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(sptr);
 	const char *mname = specs->as_XMLValueList
 		? 0 : ((*element->name)
 			? element->name : element->type->xml_tag);
@@ -102,7 +101,6 @@ SEQUENCE_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
 
 	er.encoded = 0;
 
-	(void *)list = sptr;
 	for(i = 0; i < list->count; i++) {
 		asn_enc_rval_t tmper;
 
diff --git a/skeletons/constr_SET_OF.c b/skeletons/constr_SET_OF.c
index 1bae1f97..2d72fca7 100644
--- a/skeletons/constr_SET_OF.c
+++ b/skeletons/constr_SET_OF.c
@@ -212,8 +212,7 @@ SET_OF_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
 		switch(rval.code) {
 		case RC_OK:
 			{
-				A_SET_OF(void) *list;
-				(void *)list = (void *)st;
+				asn_anonymous_set_ *list = _A_SET_FROM_VOID(st);
 				if(ASN_SET_ADD(list, ctx->ptr) != 0)
 					RETURN(RC_FAIL);
 				else
@@ -314,7 +313,7 @@ SET_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
 	asn_TYPE_member_t *elm = td->elements;
 	asn_TYPE_descriptor_t *elm_type = elm->type;
 	der_type_encoder_f *der_encoder = elm_type->der_encoder;
-	A_SET_OF(void) *list;
+	asn_anonymous_set_ *list = _A_SET_FROM_VOID(ptr);
 	size_t computed_size = 0;
 	ssize_t encoding_size = 0;
 	struct _el_buffer *encoded_els;
@@ -328,7 +327,6 @@ SET_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
 	/*
 	 * Gather the length of the underlying members sequence.
 	 */
-	(void *)list = ptr;
 	for(edx = 0; edx < list->count; edx++) {
 		void *memb_ptr = list->array[edx];
 		erval = der_encoder(elm_type, memb_ptr, 0, elm->tag, 0, 0);
@@ -516,8 +514,7 @@ SET_OF_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
 					element->type, &ctx->ptr, elm_tag,
 					buf_ptr, size);
 			if(tmprval.code == RC_OK) {
-				A_SET_OF(void) *list;
-				(void *)list = (void *)st;
+				asn_anonymous_set_ *list = _A_SET_FROM_VOID(st);
 				if(ASN_SET_ADD(list, ctx->ptr) != 0)
 					RETURN(RC_FAIL);
 				ctx->ptr = 0;
@@ -642,7 +639,7 @@ SET_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
 	asn_enc_rval_t er;
 	asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics;
 	asn_TYPE_member_t *element = td->elements;
-	A_SET_OF(void) *list;
+	asn_anonymous_set_ *list = _A_SET_FROM_VOID(sptr);
 	const char *mname = specs->as_XMLValueList
 		? 0 : ((*element->name)
 			? element->name : element->type->xml_tag);
@@ -656,8 +653,6 @@ SET_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
 
 	if(!sptr) _ASN_ENCODE_FAILED;
 
-	(void *)list = sptr;
-
 	if(xcan) {
 		encs = (xer_tmp_enc_t *)MALLOC(list->count * sizeof(encs[0]));
 		if(!encs) _ASN_ENCODE_FAILED;
@@ -747,7 +742,7 @@ int
 SET_OF_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
 		asn_app_consume_bytes_f *cb, void *app_key) {
 	asn_TYPE_member_t *element = td->elements;
-	const A_SET_OF(void) *list;
+	const asn_anonymous_set_ *list = _A_CSET_FROM_VOID(sptr);
 	int ret;
 	int i;
 
@@ -758,7 +753,6 @@ SET_OF_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
 	|| cb(" ::= {", 6, app_key) < 0)
 		return -1;
 
-	(const void *)list = sptr;
 	for(i = 0; i < list->count; i++) {
 		const void *memb_ptr = list->array[i];
 		if(!memb_ptr) continue;
@@ -780,14 +774,13 @@ void
 SET_OF_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) {
 	if(td && ptr) {
 		asn_TYPE_member_t *element = td->elements;
-		A_SET_OF(void) *list;
+		asn_anonymous_set_ *list = _A_SET_FROM_VOID(ptr);
 		int i;
 
 		/*
 		 * Could not use set_of_empty() because of (*free)
 		 * incompatibility.
 		 */
-		(void *)list = ptr;
 		for(i = 0; i < list->count; i++) {
 			void *memb_ptr = list->array[i];
 			if(memb_ptr)
@@ -808,7 +801,7 @@ SET_OF_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 		asn_app_consume_bytes_f *app_errlog, void *app_key) {
 	asn_TYPE_member_t *element = td->elements;
 	asn_constr_check_f *constr;
-	const A_SET_OF(void) *list;
+	const asn_anonymous_set_ *list = _A_CSET_FROM_VOID(sptr);
 	int i;
 
 	if(!sptr) {
@@ -818,8 +811,6 @@ SET_OF_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 		return -1;
 	}
 
-	(const void *)list = sptr;
-
 	constr = element->memb_constraints;
 	if(!constr) constr = element->type->check_constraints;