Don't try to get text width for the null font instance, mswindows 2008-07-10 Aidan Kehoe <kehoea@parhasard.net> * redisplay-msw.c (mswindows_text_width_single_run): Explicitly check for the null font instance, and return zero if so. Avoids the crash documented in http://mid.gmane.org/18473.32468.712317.149457@parhasard.net .

#!/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