Index: cddl/contrib/opensolaris/lib/libzpool/common/kernel.c
===================================================================
--- cddl/contrib/opensolaris/lib/libzpool/common/kernel.c
+++ cddl/contrib/opensolaris/lib/libzpool/common/kernel.c
@@ -687,7 +687,7 @@
 		if (dprintf_find_string("pid"))
 			(void) printf("%d ", getpid());
 		if (dprintf_find_string("tid"))
-			(void) printf("%ul ", thr_self());
+			(void) printf("%lu ", thr_self());
 #if 0
 		if (dprintf_find_string("cpu"))
 			(void) printf("%u ", getcpuid());