--- sysutil.c
+++ sysutil.c
@@ -17,12 +17,6 @@
 #include "tunables.h"
 #include "sysdeputil.h"
 
-/* Activate 64-bit file support on Linux/32bit plus others */
-#define _FILE_OFFSET_BITS 64
-#define _LARGEFILE_SOURCE 1
-#define _LARGEFILE64_SOURCE 1
-#define _LARGE_FILES 1
-
 /* For Linux, this adds nothing :-) */
 #include "port/porting_junk.h"