section of output for "emerge busybox"

>>> Source unpacked.
>>> Compiling sourc ein /var/tmp/portage/sys-apps/busybox-1.6.1/work/busybox-1.6.1 ...
   SPLIT include/autoconf.h -> include/config/*
scripts/basic/split-include: find: No such file or directory
make: *** [include/config/MARKER] Error 1
 *
 * ERROR: sys-apps/busybox-1.6.1 failed.
 * Call stack:

(there is more...)