checkapk soname diff does not work with busybox
the check is currently:
diff "../filelist-$_pkgname-old" "../filelist-$_pkgname" | awk '/>.*\.so/{$1 = ""; print $0}' | while read i; do
echo "${i}: " "$(objdump -p "$i" | grep SONAME)"
done
this assumes the diff starts with '>', which is not supported in busybox diff, as it supports unified diffs only.
to work with both, diff -U3 should be used, and the awk should be amended