diff -Nur linux-2.6.39-rc6.orig/arch/x86/boot/tools/build.c linux-2.6.39-rc6/arch/x86/boot/tools/build.c
--- linux-2.6.39-rc6.orig/arch/x86/boot/tools/build.c	2011-05-04 04:59:13.000000000 +0200
+++ linux-2.6.39-rc6/arch/x86/boot/tools/build.c	2011-05-05 20:10:07.000000000 +0200
@@ -29,7 +29,6 @@
 #include <stdarg.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <sys/sysmacros.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/mman.h>