Fix build with g++. This patch fixes various issues that cause build failures with g++ 4.8.3. See <CAHCOHQ=6yKcjQELvG8FOHXcWVez+HufUWb4FdcJKpUNhm+8B=g@mail.gmail.com> in xemacs-patches.

#!/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