[libxslt] configure.ac: produce tar.xz only (GNOME policy)

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 2f027906a2a298f746fa876ae0041b66f605e0ee
Author: David Seifert <soap gentoo org>
Date:   Sat Apr 2 14:30:18 2022 +0200

    configure.ac: produce tar.xz only (GNOME policy)
    
    * This is part of a policy from 2011:
      https://mail.gnome.org/archives/distributor-list/2011-September/msg00000.html

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index fbf514ab..4197a8b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -66,7 +66,7 @@ AC_SUBST(LIBEXSLT_VERSION_INFO)
 AC_SUBST(LIBEXSLT_VERSION_NUMBER)
 AC_SUBST(LIBEXSLT_VERSION_EXTRA)
 
-AM_INIT_AUTOMAKE([1.15 foreign])
+AM_INIT_AUTOMAKE([1.15 foreign no-dist-gzip dist-xz])
 
 # AM_MAINTAINER_MODE