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: produce tar.xz only (GNOME policy)
cebefca4a46e · David Seifert · f41a02d23e17 · cebefca4
Commit cebefca4a46e authored 3 years ago by David Seifert
--- a/configure.ac
+++ b/configure.ac
@@ -66,7 +66,7 @@
 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