diff -Nru espeak-1.47.11/debian/changelog espeak-1.47.11/debian/changelog
--- espeak-1.47.11/debian/changelog	2013-06-19 19:01:55.000000000 +0000
+++ espeak-1.47.11/debian/changelog	2014-01-21 13:51:10.000000000 +0000
@@ -1,3 +1,15 @@
+espeak (1.47.11-1ubuntu1) trusty; urgency=medium
+
+  * Add debian/espeak-data.preinst.in: Move aside
+    /usr/lib/<arch>/espeak-data/voices/en for upgrades; this directory got
+    replaced with file, and triggers a bug in overlays when dist-upgrading
+    containers. Add some magic to debian/rules to create the .preinst with
+    filling out the particular architecture (as dpkg-architecure may not be
+    available in the preinst).  This is a hackish workaround and can be
+    dropped again in trusty+1. (LP: #1220681)
+
+ -- Martin Pitt <martin.pitt@ubuntu.com>  Tue, 21 Jan 2014 14:48:33 +0100
+
 espeak (1.47.11-1) unstable; urgency=low
 
   * New upstream release
diff -Nru espeak-1.47.11/debian/control espeak-1.47.11/debian/control
--- espeak-1.47.11/debian/control	2012-06-06 23:21:07.000000000 +0000
+++ espeak-1.47.11/debian/control	2014-01-21 13:51:11.000000000 +0000
@@ -1,7 +1,8 @@
 Source: espeak
 Section: sound
 Priority: optional
-Maintainer: Debian Accessibility Team <debian-accessibility@lists.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Accessibility Team <debian-accessibility@lists.debian.org>
 Uploaders: Mario Lang <mlang@debian.org>, Samuel Thibault <sthibault@debian.org>
 Vcs-Browser: http://git.debian.org/?p=pkg-a11y/espeak.git;a=summary
 Vcs-Git: git://git.debian.org/git/pkg-a11y/espeak.git
diff -Nru espeak-1.47.11/debian/espeak-data.preinst.in espeak-1.47.11/debian/espeak-data.preinst.in
--- espeak-1.47.11/debian/espeak-data.preinst.in	1970-01-01 00:00:00.000000000 +0000
+++ espeak-1.47.11/debian/espeak-data.preinst.in	2014-01-21 14:05:26.000000000 +0000
@@ -0,0 +1,14 @@
+#!/bin/sh
+set -e
+
+# workaround for quantal → trusty upgrades where
+# /usr/lib/*/espeak-data/voices/en changed from a directory to a file; this
+# fails in containers sometimes (LP: #1220681): this can be dropped in
+# trusty+1.
+
+if [ "$1" = "upgrade" ]; then
+    d=@DATADIR@/espeak-data/voices/en
+    if [ -d $d ]; then
+        rm -r $d || true
+    fi
+fi
diff -Nru espeak-1.47.11/debian/rules espeak-1.47.11/debian/rules
--- espeak-1.47.11/debian/rules	2013-06-16 22:33:16.000000000 +0000
+++ espeak-1.47.11/debian/rules	2014-01-21 13:53:48.000000000 +0000
@@ -97,7 +97,10 @@
 	dh_fixperms
 	dh_makeshlibs -V
 	dh_shlibdeps -L libespeak1 -l debian/libespeak1/usr/lib
+	# workaround for LP#1220681; drop in trusty+1
+	sed "s!@DATADIR@!$(ESPEAK_DATA)!g" debian/espeak-data.preinst.in > debian/espeak-data.preinst
 	dh_installdeb -v
+	rm debian/espeak-data.preinst
 	dh_gencontrol
 	dh_md5sums
 	dh_builddeb