pack our enums, they are private to our code

src/node.h

@@ -52,7 +52,7 @@ enum n_type {
 	T_CRC,
 	T_SUBREQ,
 	T_FINAL	// non-ESI pass / hfm / hfp
-};
+} __attribute__ ((__packed__));
 
 /*
  * see state.dot:
@@ -97,8 +97,8 @@ enum n_state {
 	ST_OPEN,
 	ST_CLOSED,
 	ST_UNPENDING,
-	ST_DELIVERED,
-};
+	ST_DELIVERED
+} __attribute__ ((__packed__));
 
 VSTAILQ_HEAD(node_head, node);
 
@@ -122,7 +122,7 @@ enum t_crc {
 	GZIP_HDR,
 	UPDATE,
 	FINAL	// combine with parent or gen tail
-};
+} __attribute__ ((__packed__));
 
 struct node_crc {
 	enum t_crc	ctype;
@@ -157,7 +157,7 @@ enum fi_state {
 	FI_GO,			// topreq signalling req to deliver
 	FI_DONE,		// req signalling topreq it is done
 	FI_DESTROYED		// cond/mtx destroyed (fini_final())
-};
+} __attribute__ ((__packed__));
 
 /* we block the sub-thread when it's ready for delivery and continue when the
  * topreqp tells it to */