[network-manager-applet] build: create a xz compressed tarball by default

[Lubomir Rintel <lkundrak src gnome org>]

commit 9ab7065e251206f659771a14dfac767a867267fb
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Mon Aug 17 15:07:33 2015 +0200

    build: create a xz compressed tarball by default
    
    GNOME release tooling repacks the bz2 to a xz anyway. This makes it easier for
    packagers to use tarballs created with "make dist" in place of distribution
    tarballs.

 .gitignore   |    2 +-
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index f8601cd..63026c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,6 @@
 *.lo
 *.la
 *.swp
-*.bz2
 Makefile
 Makefile.in*
 configure
@@ -32,6 +31,7 @@ m4/intltool.m4
 m4/libtool.m4
 m4/lt*.m4
 
+/network-manager-applet-*.tar.*
 nm-applet.conf
 nm-applet.desktop
 nm-connection-editor.desktop
diff --git a/configure.ac b/configure.ac
index 89e1209..face018 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,7 @@ AC_INIT([nm-applet],
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE([1.11 subdir-objects no-dist-gzip dist-bzip2 -Wno-portability])
+AM_INIT_AUTOMAKE([1.11 subdir-objects no-dist-gzip dist-xz -Wno-portability])
 AM_MAINTAINER_MODE([enable])
 AM_SILENT_RULES([yes])