[network-manager-pptp] build: create xz compressed tarballs by default

[Lubomir Rintel <lkundrak src gnome org>]

commit 345c34eb572e0f7a922e288d76378cad9fd8838f
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Mon Aug 31 14:40:20 2015 +0200

    build: create xz compressed tarballs 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, 3 insertions(+), 1 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index c9a6af7..8f0f789 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,5 @@ nm-pptp-service.name
 nm-pptp.desktop
 src/nm-pptp-pppd-service-glue.h
 src/nm-pptp-service
+
+/NetworkManager-pptp*.tar*
diff --git a/configure.ac b/configure.ac
index 59b0216..8b5935b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 AC_PREREQ(2.59)
 
 AC_INIT(NetworkManager-pptp, 1.1.0, dcbw redhat com, NetworkManager-pptp)
-AM_INIT_AUTOMAKE([1.9 foreign no-dist-gzip dist-bzip2 subdir-objects])
+AM_INIT_AUTOMAKE([1.9 foreign no-dist-gzip dist-xz subdir-objects])
 AM_MAINTAINER_MODE
 
 AC_CONFIG_MACRO_DIR([m4])