The bbconfig applet will print the config file with which
busybox was built.
+config CHRT
+ bool "chrt"
+ default n
+ help
+ manipulate real-time attributes of a process.
+ This requires sched_{g,s}etparam support in your libc.
+
config CROND
bool "crond"
default n
config READAHEAD
bool "readahead"
default n
+ depends on LFS
help
Preload the files listed on the command line into RAM cache so that
subsequent reads on these files will not block on disk I/O.