2 files changed, 5 insertions, 2 deletions

diff --git a/sys/alpha/alpha/machdep.c b/sys/alpha/alpha/machdep.c
index 47d9951e3623..0cf74e537a7f 100644
--- a/sys/alpha/alpha/machdep.c
+++ b/sys/alpha/alpha/machdep.c
@@ -231,8 +231,6 @@ static vm_offset_t buffer_sva, buffer_eva;
 vm_offset_t clean_sva, clean_eva;
 static vm_offset_t pager_sva, pager_eva;
 
-#define offsetof(type, member)	((size_t)(&((type *)0)->member))
-
 /*
  * Hooked into the shutdown chain; if the system is to be halted,
  * unconditionally drop back to the SRM console.
diff --git a/sys/alpha/include/ansi.h b/sys/alpha/include/ansi.h
index f9b1f424114b..9eaf663e069c 100644
--- a/sys/alpha/include/ansi.h
+++ b/sys/alpha/include/ansi.h
@@ -106,6 +106,11 @@ typedef struct {
 #define	_BSD_CLOCKS_PER_SEC_	100
 
 /*
+ * We define this here since both <stddef.h> and <sys/types.h> needs it.
+ */
+#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
+
+/*
  * Internal names for basic integral types.  Omit the typedef if
  * not possible for a machine/compiler combination.
  */