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-rw-r--r--db/hash/hash_log2.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/db/hash/hash_log2.c b/db/hash/hash_log2.c
index c8c56bff2d..92fda72ff0 100644
--- a/db/hash/hash_log2.c
+++ b/db/hash/hash_log2.c
@@ -42,6 +42,8 @@ static char sccsid[] = "@(#)hash_log2.c	8.2 (Berkeley) 5/31/94";
 
 #include <db.h>
 
+u_int32_t __log2 __P((u_int32_t));
+
 u_int32_t
 __log2(num)
 	u_int32_t num;