diff -Nru automake-1.14.orig/lib/ylwrap automake-1.14/lib/ylwrap
--- automake-1.14.orig/lib/ylwrap	2013-06-20 10:44:16.000000000 +0200
+++ automake-1.14/lib/ylwrap	2013-06-22 11:01:36.962624044 +0200
@@ -161,13 +161,12 @@
   *[\\/]*) prog=`pwd`/$prog ;;
 esac
 
-dirname=ylwrap$$
+dirname=`mktemp -d ylwrap.XXXXXX`
 do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
 trap "ret=129; $do_exit" 1
 trap "ret=130; $do_exit" 2
 trap "ret=141; $do_exit" 13
 trap "ret=143; $do_exit" 15
-mkdir $dirname || exit 1
 
 cd $dirname