$NetBSD$

--- run-mailcap.orig	2018-05-30 11:43:15.000000000 +0000
+++ run-mailcap
@@ -141,9 +141,8 @@ sub TempFile {
 #   $tmpfile = POSIX::tmpnam($name);
 #   unlink($tmpfile);
 
-    $cmd  = "tempfile --mode=600";
-    $cmd .= " --prefix $head" if $head;
-    $cmd .= " --suffix $tail" if $tail;
+    # XXX: -t doesn't like having directories -- consider not using -t
+    $cmd  = "mktemp -t $tmpfile";
 
     $tmpfile = `$cmd`;
     chomp($tmpfile);