[retro-gtk] build: Make .xz tarballs by default

[Adrien Plazas <aplazas src gnome org>]

commit 7cfaee45ebc4e644c5e718a5b76dea7e4361345f
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Mon Mar 13 11:36:11 2017 -0400

    build: Make .xz tarballs by default
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779987

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2cac613..20a71ca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ AC_INIT(retro-gtk, 0.9.91)
 
 AC_CONFIG_HEADERS([config.h])
 
-AM_INIT_AUTOMAKE([1.11 subdir-objects])
+AM_INIT_AUTOMAKE([1.11 foreign subdir-objects tar-ustar no-dist-gzip dist-xz])
 
 AM_SILENT_RULES([yes])