--- bzip2-1.0.2/bzdiff.tempfile	2004-12-09 15:37:56.809670688 +0100
+++ bzip2-1.0.2/bzdiff	2004-12-09 15:46:05.169428720 +0100
@@ -37,7 +37,7 @@
 	echo "Usage: $prog [${comp}_options] file [file]"
 	exit 1
 fi
-tmp=`tempfile -d /tmp -p bz` || {
+tmp=`/bin/mktemp ${TMPDIR:-/tmp}/bzdiff.XXXXXXXXXX` || {
       echo 'cannot create a temporary file' >&2
       exit 1
 }