define parentheses

diff --git a/drill/drill.h.in b/drill/drill.h.in
index 2f87e86840509db16cdbc392979508cd190148d4..e5b6c87f35f9c3d1094cda7da43d5c0e410a5824 100644 (file)
--- a/drill/drill.h.in
+++ b/drill/drill.h.in
@@ -25,9 +25,9 @@
 #define DRILL_SECTRACE         7
 
 #define DRILL_ON(VAR, BIT) \
-VAR = VAR | BIT
+(VAR) = (VAR) | (BIT)
 #define DRILL_OFF(VAR, BIT) \
-VAR = VAR & ~BIT
+(VAR) = (VAR) & ~(BIT)
 
 extern ldns_rr_list *global_dns_root;
 extern bool qds;