3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument is zero

@@ -21,10 +21,12 @@
 
 #
 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
+# Copyright (c) 2012 by Delphix. All rights reserved.
+#
 
 PROG:sh=        cd ..; basename `pwd`
 SRCS= ../$(PROG).c ../zdb_il.c
 OBJS= $(PROG).o zdb_il.o
 

@@ -40,11 +42,11 @@
 C99MODE=        -xc99=%all
 C99LMODE=       -Xc99=%all
 
 CFLAGS += $(CCVERBOSE)
 CFLAGS64 += $(CCVERBOSE)
-CPPFLAGS += -D_LARGEFILE64_SOURCE=1 -D_REENTRANT $(INCS)
+CPPFLAGS += -D_LARGEFILE64_SOURCE=1 -D_REENTRANT $(INCS) -DDEBUG
 
 # lint complains about unused _umem_* functions
 LINTFLAGS += -xerroff=E_NAME_DEF_NOT_USED2 
 LINTFLAGS64 += -xerroff=E_NAME_DEF_NOT_USED2