--- netpbm-10.29/editor/ppmquantall-	2005-03-16 23:44:03 +0000
+++ netpbm-10.29/editor/ppmquantall	2005-10-04 16:50:28 +0000
@@ -63,11 +63,15 @@ for i in ${files[@]}; do
     heights=(${heights[*]} `grep -v '^#' $i | sed '1d; s/.* //; 2q'`)
 done
 
-tempdir="${TMPDIR-/tmp}/ppmquantall.$$"
-mkdir $tempdir || { echo "Could not create temporary file. Exiting."; exit 1;}
-chmod 700 $tempdir
-
-trap 'rm -rf $tempdir' 0 1 3 15
+exit_handler()
+{
+	local rc=$?
+	trap - EXIT
+	rm -rf -- "$tempdir"
+	exit $rc
+}
+tempdir=`mktemp -d -t ppmquantall.XXXXXXXX` || exit 1
+trap exit_handler EXIT HUP INT QUIT PIPE TERM
 
 all=$tempdir/pqa.all.$$