I came across https://git.gnome.org/browse/libgweather/tree/configure.ac#n10

$ git blame -L 10,10 configure.ac

has reported: 06538d35 (Jasper St. Pierre 2013-06-15 01:47:39 -0400 10) g


and this was it:

commit 06538d356f85f02d4f983a7e143b89939dd6eafc
Author: Jasper St. Pierre <jstpierre@mecheye.net>
Date:   Sat Jun 15 01:47:39 2013 -0400

    Update git.mk

diff --git a/Makefile.am b/Makefile.am
index e92209a..6d1ee34 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -9,22 +9,9 @@ EXTRA_DIST =           \
        MAINTAINERS
 
 MAINTAINERCLEANFILES = \
-       $(srcdir)/INSTALL \
-       $(srcdir)/aclocal.m4 \
-       $(srcdir)/compile \
-       $(srcdir)/config.guess \
-       $(srcdir)/config.h.in \
-       $(srcdir)/config.sub \
-       $(srcdir)/depcomp \
-       $(srcdir)/install-sh \
-       $(srcdir)/ltmain.sh \
-       $(srcdir)/missing \
-       $(srcdir)/mkinstalldirs \
-       `find "$(srcdir)" -type f -name Makefile.in -print` \
-       $(srcdir)/configure \
-       $(srcdir)/gtk-doc.make \
-       $(srcdir)/m4/gtk-doc.m4 \
-       $(srcdir)/m4/intltool.m4
+       $(GITIGNORE_MAINTAINERCLEANFILES_TOPLEVEL) \
+       $(GITIGNORE_MAINTAINERCLEANFILES_MAKEFILE_IN) \
+       $(GITIGNORE_MAINTAINERCLEANFILES_M4_LIBTOOL)
 
 CHANGELOG_GIT_RANGE = LIBGWEATHER_2_26_1..
 dist-hook:
diff --git a/configure.ac b/configure.ac
index 3600703..167a6ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,8 +7,7 @@ AC_PREREQ([2.64])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
-AC_CONFIG_AUX_DIR([build-aux])
-
+g
 AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar])


moreover $ git status
# On branch master
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#	ABOUT-NLS
#	INSTALL
#	build-aux/
#	config.rpath
#	gtk-doc.make
#	m4/

still shows crap


So, I would suggest to restore some of the removed items.