--- hash_log2.c.orig 2009-11-06 14:27:02.000000000 -0800 +++ hash_log2.c 2009-11-06 14:27:42.000000000 -0800 @@ -39,7 +39,7 @@ __FBSDID("$FreeBSD: src/lib/libc/db/hash #include <db.h> #include "hash.h" #include "page.h" -#include "extern.h" +#include "hash_extern.h" u_int32_t __log2(u_int32_t num)