Support COMPARE-FN in add-to-list; thank you Brian Palmer. 2008-02-25 bpalmer <bpalmer@gmail.com> * subr.el(add-to-list): add support for `compare-fn' to sync with emacs.

#!/bin/sh
if
test -r $2
then
if
cmp $1 $2 > /dev/null
then
echo $2 is unchanged
rm -f $1
else
mv -f $1 $2
fi
else
mv -f $1 $2
fi