Busybox-1.4.0: implicit declaration of function `readahead`

[KokHow.Teh at infineon.com]

[tehkok at linux2:~/busybox-1.4.0 12]$ m
  CC      miscutils/readahead.o
miscutils/readahead.c: In function `readahead_main':
miscutils/readahead.c:26: warning: implicit declaration of function
`readahead'
make[1]: *** [miscutils/readahead.o] Error 1
make: *** [miscutils] Error 2
[tehkok at linux2:~/busybox-1.4.0 13]$

	Any advice is appreciated.

Regards,
KH