AC_MSG_CHECKING([for linux kernel module build works])
AC_TRY_KBUILD(
[#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/namei.h>],
+#include <linux/fs.h>],
[],:,AC_MSG_RESULT(no)
AC_MSG_FAILURE([Fix problem or use --disable-kernel-module...]))
AC_MSG_RESULT(yes)])