[evolution-ews] Update tar format to tar-ustar

[Fabiano Fidêncio <ffidencio src gnome org>]

commit d9924ef564c4afefa494870dfadfcbfbdac85da0
Author: Fabiano Fidêncio <fidencio redhat com>
Date:   Tue Nov 5 10:32:06 2013 +0100

    Update tar format to tar-ustar
    
    "tar-ustar selects the ustar format defined by POSIX 1003.1-1988. This format is believed to be old 
enough to be
    portable. It fully supports empty directories. It can store file names with up to 256 characters, 
provided that the
    file name can be split at directory separator in two parts, first of them being at most 155 bytes long. 
So, in most
    cases the maximum file name length will be shorter than 256 characters."
    
    From http://www.gnu.org/software/automake/manual/html_node/List-of-Automake-options.html
    
    https://bugzilla.gnome.org/show_bug.cgi?id=711470

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index db2e653..bbf505d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,7 +8,7 @@ m4_define([ews_version],
 
 AC_PREREQ(2.58)
 AC_INIT([evolution-ews], [ews_version], [http://bugzilla.gnome.org/browse.cgi?product=evolution-ews])
-AM_INIT_AUTOMAKE([gnu 1.9 dist-xz no-dist-gzip -Wno-portability])
+AM_INIT_AUTOMAKE([gnu 1.9 dist-xz no-dist-gzip -Wno-portability tar-ustar])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR(README)
 AC_CONFIG_HEADERS(config.h)