--- a/configure.ac.orig	2013-09-22 21:41:47.425614161 +0200
+++ b/configure.ac	2013-09-22 21:41:51.653500538 +0200
@@ -51,8 +51,8 @@
 dnl Automake 1.11 introduced `silent-rules' and `color-tests'.  Use them
 dnl when they're available.
 m4_ifdef([AM_SILENT_RULES],
-  [AM_INIT_AUTOMAKE([1.11 -Wall -Werror foreign silent-rules color-tests parallel-tests])],
-  [AM_INIT_AUTOMAKE([1.10 -Wall -Werror foreign])])
+  [AM_INIT_AUTOMAKE([1.11 -Wall foreign silent-rules color-tests parallel-tests])],
+  [AM_INIT_AUTOMAKE([1.10 -Wall foreign])])
 
 m4_ifdef([AM_SILENT_RULES],
   [AM_SILENT_RULES(yes)])
