From 63fb92c1ba488a9a63c410a96a39f714ae01d83b Mon Sep 17 00:00:00 2001
From: Evan Hunt <each@isc.org>
Date: Sat, 15 Nov 2014 00:56:30 -0800
Subject: [PATCH] [master] fix false positive compiler warning

a "pointer always evaluates to true" warning was blocking
compilation of the radix ATF test when using --enable-developer
with gcc 4.8.2.
---
 lib/isc/include/isc/radix.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/isc/include/isc/radix.h b/lib/isc/include/isc/radix.h
index 24c183f2c2..ed6de39985 100644
--- a/lib/isc/include/isc/radix.h
+++ b/lib/isc/include/isc/radix.h
@@ -34,8 +34,9 @@
 
 #define NETADDR_TO_PREFIX_T(na,pt,bits,is_ecs)	\
 	do { \
+		const void *p = na; \
 		memset(&(pt), 0, sizeof(pt)); \
-		if((na) != NULL) { \
+		if (p != NULL) { \
 			(pt).family = (na)->family; \
 			(pt).bitlen = (bits); \
 			if ((pt).family == AF_INET6) { \