Add GPL v2 or later header to s/sco7.h. Ron Record, the author of that file, gave permission to do so in xemacs-beta message <4B6C7791.2020100@ronrecord.com>.

#!/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