Now arith can deal with div/mod arbitrary nat numerals.
#/!bin/bash
ISATOOL=${ISATOOL:-isatool}
type -p "$ISATOOL" >/dev/null || { echo "isatool not found!" >&2; exit 2; }
for FILE in $(find . -name IsaMakefile -print)
do
DIR=$(dirname "$FILE")
echo "Entering $DIR ..."
( cd "$DIR"; $ISATOOL make "$@"; )
done