diff -up libdeltacloud-0.9.orig/configure.ac libdeltacloud-0.9/configure.ac
--- libdeltacloud-0.9.orig/configure.ac	2011-06-16 10:10:06.000000000 -0400
+++ libdeltacloud-0.9/configure.ac	2013-04-02 21:36:32.196921404 -0400
@@ -1,7 +1,7 @@
 AC_INIT([libdeltacloud], [0.9], [deltacloud-dev@incubator.apache.org])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AM_INIT_AUTOMAKE([-Wall -Werror -Wno-extra-portability foreign])
 AC_CONFIG_HEADERS([config.h])
 AC_PROG_LIBTOOL
 AC_PROG_CC