We don't have the correct __NR_memfd_create syscall number yet, so set it to
0xffffffff for now to prevent compile time errors.
# define __NR_fanotify_mark 5296
# endif
# endif
# define __NR_fanotify_mark 5296
# endif
# endif
+# ifndef __NR_memfd_create
+# define __NR_memfd_create 0xffffffff /* FIXME */
+# endif
#else
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 338
#else
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 338