build-sys: use dist-xz

Even as conservative project as coreutils has switched to xz distributions so
neither should we have any reason to use gz and waste space & bandwidth.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

.gitignore

@@ -30,7 +30,7 @@ mkinstalldirs
 pgrep
 pkill
 pmap
-procps-ng-*.tar.gz
+procps-ng-*.tar.xz
 proc/.depend
 proc/libprocps.la
 proc/libprocps.pc

configure.ac

@@ -6,7 +6,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_INIT([procps-ng],
 	m4_esyscmd([tools/git-version-gen .tarball-version]),
 	[procps@freelists.org],,[http://gitorious.org/procps])
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability tar-pax no-dist-gzip dist-xz])
 AC_CONFIG_SRCDIR([free.c])
 AC_CONFIG_HEADERS([config.h])
 

lib/.gitignore

@@ -1 +1,2 @@
+.dirstamp
 test_strutils