1 files changed, 1 insertions, 4 deletions
diff --git a/Grow.c b/Grow.c
index 202b6ef4..2af6c96e 100644
--- a/Grow.c
+++ b/Grow.c
@@ -24,6 +24,7 @@
 #include	"mdadm.h"
 #include	"dlink.h"
 #include	<sys/mman.h>
+#include	<stddef.h>
 #include	<stdint.h>
 #include	<signal.h>
 #include	<sys/wait.h>
@@ -34,10 +35,6 @@
 #include	"md_u.h"
 #include	"md_p.h"
 
-#ifndef offsetof
-#define offsetof(t,f) ((size_t)&(((t*)0)->f))
-#endif
-
 int restore_backup(struct supertype *st,
 		   struct mdinfo *content,
 		   int working_disks,