autoconf/install-sh: not found

hi list,
i'm trying to compile lvm .98 on a busybox-1.20.2-based system, and get these errors:

autoconf/install-sh -c -d locking/; \
set -e; \
FILE=echo locking/external_locking.d | sed 's/\\//\\\\\\//g;s/\\.d//g'; \
DEPS=echo ../make.tmpl ../VERSION ../Makefile ../include/.symlinks_created | sed -e 's/\\//\\\\\\//g'; \
gcc -MM -I. -I../include -DHAVE_CONFIG_H -DDM_IOCTLS -o locking/external_locking.d locking/external_locking.c; \
sed -i "s/\(.*\)\.o[ :]*/$FILE.o $FILE.d $FILE.pot: $DEPS /g" locking/external_locking.d; \
[ -s locking/external_locking.d ] || rm -f locking/external_locking.d
/bin/sh: autoconf/install-sh: not found

anyone has an idea what's going on here ?

is autoconf/install-sh intended to be symlinked into some subdirs, or is there a missing path prefix ?

i suspect there is some portability bug somewhere where gnu-specific behaviour is assumed (as opposed to POSIX).

best regards,
--JS