[gnome-builder] build: Generate XZ-compressed tarballs

[Christian Hergert <chergert src gnome org>]

commit d7a5118f407fd229514a35c3d41c20d56c181cdc
Author: Mathieu Bridon <bochecha fedoraproject org>
Date:   Fri Sep 12 10:21:31 2014 +0200

    build: Generate XZ-compressed tarballs
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736540

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index ac50036..6613fde 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,7 @@ m4_include([build/autotools/autoconf.d/post-lt.m4])
 # Initialize automake and things that go with it.
 # We would put AM initialization in a file but autoreconf requires it.
 m4_include([build/autotools/autoconf.d/pre-am.m4])
-AM_INIT_AUTOMAKE([foreign subdir-objects tar-ustar])
+AM_INIT_AUTOMAKE([foreign subdir-objects tar-ustar no-dist-gzip dist-xz])
 AM_MAINTAINER_MODE([enable])
 m4_include([build/autotools/autoconf.d/post-am.m4])