Index: head/cddl/contrib/opensolaris/tools/ctf/cvt/merge.c
===================================================================
--- head/cddl/contrib/opensolaris/tools/ctf/cvt/merge.c
+++ head/cddl/contrib/opensolaris/tools/ctf/cvt/merge.c
@@ -452,6 +452,10 @@
 		if (ed.ed_tgt->t_type == FORWARD && ctdp->t_type != FORWARD) {
 			int id = mcd->md_tgt->td_nextid++;
 
+#ifdef __FreeBSD__
+			if (CTF_TYPE_ISCHILD(id))
+				terminate("No room for additional types\n");
+#endif
 			debug(3, "Creating new defn type %d <%x>\n", id, id);
 			add_mapping(mcd->md_ta, ctdp->t_id, id);
 			alist_add(mcd->md_fdida, (void *)(ulong_t)ed.ed_tgt,
@@ -473,6 +477,10 @@
 	} else {
 		int id = mcd->md_tgt->td_nextid++;
 
+#ifdef __FreeBSD__
+		if (CTF_TYPE_ISCHILD(id))
+			terminate("No room for additional types\n");
+#endif
 		debug(3, "Creating new type %d <%x>\n", id, id);
 		add_mapping(mcd->md_ta, ctdp->t_id, id);
 		hash_add(mcd->md_tdtba, ctdp);
Index: head/cddl/contrib/opensolaris/tools/ctf/cvt/util.c
===================================================================
--- head/cddl/contrib/opensolaris/tools/ctf/cvt/util.c
+++ head/cddl/contrib/opensolaris/tools/ctf/cvt/util.c
@@ -148,17 +148,7 @@
 
 	if (getenv("CTF_ABORT_ON_TERMINATE") != NULL)
 		abort();
-#if defined(__FreeBSD__)
-/*
- * For the time being just output the termination message, but don't
- * return an exit status that would cause the build to fail. We need
- * to get as much stuff built as possible before going back and
- * figuring out what is wrong with certain files.
- */
-	exit(0);
-#else
 	exit(1);
-#endif
 }
 
 /*PRINTFLIKE1*/