diff --git a/git.mk b/git.mk
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+# git.mk, a small Makefile to autogenerate .gitignore files
+# for autotools-based projects.
+#
+# Copyright 2009, Red Hat, Inc.
+# Copyright 2010,2011,2012,2013 Behdad Esfahbod
+# Written by Behdad Esfahbod
+#
+# Copying and distribution of this file, with or without modification,
+# is permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.
+#
+# The latest version of this file can be downloaded from:
+GIT_MK_URL = https://raw.githubusercontent.com/behdad/git.mk/master/git.mk
+#
+# Bugs, etc, should be reported upstream at:
+#   https://github.com/behdad/git.mk
+#
+# To use in your project, import this file in your git repo's toplevel,
+# then do "make -f git.mk".  This modifies all Makefile.am files in
+# your project to -include git.mk.  Remember to add that line to new
+# Makefile.am files you create in your project, or just rerun the
+# "make -f git.mk".
+#
+# This enables automatic .gitignore generation.  If you need to ignore
+# more files, add them to the GITIGNOREFILES variable in your Makefile.am.
+# But think twice before doing that.  If a file has to be in .gitignore,
+# chances are very high that it's a generated file and should be in one
+# of MOSTLYCLEANFILES, CLEANFILES, DISTCLEANFILES, or MAINTAINERCLEANFILES.
+#
+# The only case that you need to manually add a file to GITIGNOREFILES is
+# when remove files in one of mostlyclean-local, clean-local, distclean-local,
+# or maintainer-clean-local make targets.
+#
+# Note that for files like editor backup, etc, there are better places to
+# ignore them.  See "man gitignore".
+#
+# If "make maintainer-clean" removes the files but they are not recognized
+# by this script (that is, if "git status" shows untracked files still), send
+# me the output of "git status" as well as your Makefile.am and Makefile for
+# the directories involved and I'll diagnose.
+#
+# For a list of toplevel files that should be in MAINTAINERCLEANFILES, see
+# Makefile.am.sample in the git.mk git repo.
+#
+# Don't EXTRA_DIST this file.  It is supposed to only live in git clones,
+# not tarballs.  It serves no useful purpose in tarballs and clutters the
+# build dir.
+#
+# This file knows how to handle autoconf, automake, libtool, gtk-doc,
+# gnome-doc-utils, yelp.m4, mallard, intltool, gsettings, dejagnu, appdata,
+# appstream, hotdoc.
+#
+# This makefile provides the following targets:
+#
+# - all: "make all" will build all gitignore files.
+# - gitignore: makes all gitignore files in the current dir and subdirs.
+# - .gitignore: make gitignore file for the current dir.
+# - gitignore-recurse: makes all gitignore files in the subdirs.
+#
+# KNOWN ISSUES:
+#
+# - Recursive configure doesn't work as $(top_srcdir)/git.mk inside the
+#   submodule doesn't find us.  If you have configure.{in,ac} files in
+#   subdirs, add a proxy git.mk file in those dirs that simply does:
+#   "include $(top_srcdir)/../git.mk".  Add more ..'s to your taste.
+#   And add those files to git.  See vte/gnome-pty-helper/git.mk for
+#   example.
+#
+
+
+
+###############################################################################
+# Variables user modules may want to add to toplevel MAINTAINERCLEANFILES:
+###############################################################################
+
+#
+# Most autotools-using modules should be fine including this variable in their
+# toplevel MAINTAINERCLEANFILES:
+GITIGNORE_MAINTAINERCLEANFILES_TOPLEVEL = \
+	$(srcdir)/aclocal.m4 \
+	$(srcdir)/autoscan.log \
+	$(srcdir)/configure.scan \
+	`AUX_DIR=$(srcdir)/$$(cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_AUX_DIR:$$1' ./configure.ac); \
+	 test "x$$AUX_DIR" = "x$(srcdir)/" && AUX_DIR=$(srcdir); \
+	 for x in \
+		ar-lib \
+		compile \
+		config.guess \
+		config.rpath \
+		config.sub \
+		depcomp \
+		install-sh \
+		ltmain.sh \
+		missing \
+		mkinstalldirs \
+		test-driver \
+		ylwrap \
+	 ; do echo "$$AUX_DIR/$$x"; done` \
+	`cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_HEADERS:$$1' ./configure.ac | \
+	head -n 1 | while read f; do echo "$(srcdir)/$$f.in"; done`
+#
+# All modules should also be fine including the following variable, which
+# removes automake-generated Makefile.in files:
+GITIGNORE_MAINTAINERCLEANFILES_MAKEFILE_IN = \
+	`cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_FILES:$$1' ./configure.ac | \
+	while read f; do \
+	  case $$f in Makefile|*/Makefile) \
+	    test -f "$(srcdir)/$$f.am" && echo "$(srcdir)/$$f.in";; esac; \
+	done`
+#
+# Modules that use libtool and use  AC_CONFIG_MACRO_DIR() may also include this,
+# though it's harmless to include regardless.
+GITIGNORE_MAINTAINERCLEANFILES_M4_LIBTOOL = \
+	`MACRO_DIR=$(srcdir)/$$(cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_MACRO_DIR:$$1' ./configure.ac); \
+	 if test "x$$MACRO_DIR" != "x$(srcdir)/"; then \
+		for x in \
+			libtool.m4 \
+			ltoptions.m4 \
+			ltsugar.m4 \
+			ltversion.m4 \
+			lt~obsolete.m4 \
+		; do echo "$$MACRO_DIR/$$x"; done; \
+	 fi`
+#
+# Modules that use gettext and use  AC_CONFIG_MACRO_DIR() may also include this,
+# though it's harmless to include regardless.
+GITIGNORE_MAINTAINERCLEANFILES_M4_GETTEXT = \
+	`MACRO_DIR=$(srcdir)/$$(cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_MACRO_DIR:$$1' ./configure.ac); \
+	if test "x$$MACRO_DIR" != "x$(srcdir)/"; then	\
+		for x in				\
+			codeset.m4			\
+			extern-inline.m4		\
+			fcntl-o.m4			\
+			gettext.m4			\
+			glibc2.m4			\
+			glibc21.m4			\
+			iconv.m4			\
+			intdiv0.m4			\
+			intl.m4				\
+			intldir.m4			\
+			intlmacosx.m4			\
+			intmax.m4			\
+			inttypes-pri.m4			\
+			inttypes_h.m4			\
+			lcmessage.m4			\
+			lib-ld.m4			\
+			lib-link.m4			\
+			lib-prefix.m4			\
+			lock.m4				\
+			longlong.m4			\
+			nls.m4				\
+			po.m4				\
+			printf-posix.m4			\
+			progtest.m4			\
+			size_max.m4			\
+			stdint_h.m4			\
+			threadlib.m4			\
+			uintmax_t.m4			\
+			visibility.m4			\
+			wchar_t.m4			\
+			wint_t.m4			\
+			xsize.m4			\
+		; do echo "$$MACRO_DIR/$$x"; done; \
+	fi`
+
+
+
+###############################################################################
+# Default rule is to install ourselves in all Makefile.am files:
+###############################################################################
+
+git-all: git-mk-install
+
+git-mk-install:
+	@echo "Installing git makefile"
+	@any_failed=; \
+		find "`test -z "$(top_srcdir)" && echo . || echo "$(top_srcdir)"`" -name Makefile.am | while read x; do \
+		if grep 'include .*/git.mk' $$x >/dev/null; then \
+			echo "$$x already includes git.mk"; \
+		else \
+			failed=; \
+			echo "Updating $$x"; \
+			{ cat $$x; \
+			  echo ''; \
+			  echo '-include $$(top_srcdir)/git.mk'; \
+			} > $$x.tmp || failed=1; \
+			if test x$$failed = x; then \
+				mv $$x.tmp $$x || failed=1; \
+			fi; \
+			if test x$$failed = x; then : else \
+				echo "Failed updating $$x"; >&2 \
+				any_failed=1; \
+			fi; \
+	fi; done; test -z "$$any_failed"
+
+git-mk-update:
+	wget $(GIT_MK_URL) -O $(top_srcdir)/git.mk
+
+.PHONY: git-all git-mk-install git-mk-update
+
+
+
+###############################################################################
+# Actual .gitignore generation:
+###############################################################################
+
+$(srcdir)/.gitignore: Makefile.am $(top_srcdir)/git.mk $(top_srcdir)/configure.ac
+	@echo "git.mk: Generating $@"
+	@{ \
+		if test "x$(DOC_MODULE)" = x -o "x$(DOC_MAIN_SGML_FILE)" = x; then :; else \
+			for x in \
+				$(DOC_MODULE)-decl-list.txt \
+				$(DOC_MODULE)-decl.txt \
+				tmpl/$(DOC_MODULE)-unused.sgml \
+				"tmpl/*.bak" \
+				$(REPORT_FILES) \
+				$(DOC_MODULE).pdf \
+				xml html \
+			; do echo "/$$x"; done; \
+			FLAVOR=$$(cd $(top_srcdir); $(AUTOCONF) --trace 'GTK_DOC_CHECK:$$2' ./configure.ac); \
+			case $$FLAVOR in *no-tmpl*) echo /tmpl;; esac; \
+			if echo "$(SCAN_OPTIONS)" | grep -q "\-\-rebuild-types"; then \
+				echo "/$(DOC_MODULE).types"; \
+			fi; \
+			if echo "$(SCAN_OPTIONS)" | grep -q "\-\-rebuild-sections"; then \
+				echo "/$(DOC_MODULE)-sections.txt"; \
+			fi; \
+			if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
+				for x in \
+					$(SETUP_FILES) \
+					$(DOC_MODULE).types \
+				; do echo "/$$x"; done; \
+			fi; \
+		fi; \
+		if test "x$(DOC_MODULE)$(DOC_ID)" = x -o "x$(DOC_LINGUAS)" = x; then :; else \
+			for lc in $(DOC_LINGUAS); do \
+				for x in \
+					$(if $(DOC_MODULE),$(DOC_MODULE).xml) \
+					$(DOC_PAGES) \
+					$(DOC_INCLUDES) \
+				; do echo "/$$lc/$$x"; done; \
+			done; \
+			for x in \
+				$(_DOC_OMF_ALL) \
+				$(_DOC_DSK_ALL) \
+				$(_DOC_HTML_ALL) \
+				$(_DOC_MOFILES) \
+				$(DOC_H_FILE) \
+				"*/.xml2po.mo" \
+				"*/*.omf.out" \
+			; do echo /$$x; done; \
+		fi; \
+		if test "x$(HOTDOC)" = x; then :; else \
+			$(foreach project, $(HOTDOC_PROJECTS),echo "/$(call HOTDOC_TARGET,$(project))"; \
+				echo "/$(shell $(call HOTDOC_PROJECT_COMMAND,$(project)) --get-conf-path output)" ; \
+				echo "/$(shell $(call HOTDOC_PROJECT_COMMAND,$(project)) --get-private-folder)" ; \
+			) \
+			for x in \
+				.hotdoc.d \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test "x$(HELP_ID)" = x -o "x$(HELP_LINGUAS)" = x; then :; else \
+			for lc in $(HELP_LINGUAS); do \
+				for x in \
+					$(HELP_FILES) \
+					"$$lc.stamp" \
+					"$$lc.mo" \
+				; do echo "/$$lc/$$x"; done; \
+			done; \
+		fi; \
+		if test "x$(gsettings_SCHEMAS)" = x; then :; else \
+			for x in \
+				$(gsettings_SCHEMAS:.xml=.valid) \
+				$(gsettings__enum_file) \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test "x$(appdata_XML)" = x; then :; else \
+			for x in \
+				$(appdata_XML:.xml=.valid) \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test "x$(appstream_XML)" = x; then :; else \
+			for x in \
+				$(appstream_XML:.xml=.valid) \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test -f $(srcdir)/po/Makefile.in.in; then \
+			for x in \
+				ABOUT-NLS \
+				po/Makefile.in.in \
+				po/Makefile.in.in~ \
+				po/Makefile.in \
+				po/Makefile \
+				po/Makevars.template \
+				po/POTFILES \
+				po/Rules-quot \
+				po/stamp-it \
+				po/stamp-po \
+				po/.intltool-merge-cache \
+				"po/*.gmo" \
+				"po/*.header" \
+				"po/*.mo" \
+				"po/*.sed" \
+				"po/*.sin" \
+				po/$(GETTEXT_PACKAGE).pot \
+				intltool-extract.in \
+				intltool-merge.in \
+				intltool-update.in \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test -f $(srcdir)/configure; then \
+			for x in \
+				autom4te.cache \
+				configure \
+				config.h \
+				stamp-h1 \
+				libtool \
+				config.lt \
+			; do echo "/$$x"; done; \
+		fi; \
+		if test "x$(DEJATOOL)" = x; then :; else \
+			for x in \
+				$(DEJATOOL) \
+			; do echo "/$$x.sum"; echo "/$$x.log"; done; \
+			echo /site.exp; \
+		fi; \
+		if test "x$(am__dirstamp)" = x; then :; else \
+			echo "$(am__dirstamp)"; \
+		fi; \
+		if test "x$(findstring libtool,$(LTCOMPILE))" = x -a "x$(findstring libtool,$(LTCXXCOMPILE))" = x -a "x$(GTKDOC_RUN)" = x; then :; else \
+			for x in \
+				"*.lo" \
+				".libs" "_libs" \
+			; do echo "$$x"; done; \
+		fi; \
+		for x in \
+			.gitignore \
+			$(GITIGNOREFILES) \
+			$(CLEANFILES) \
+			$(PROGRAMS) $(check_PROGRAMS) $(EXTRA_PROGRAMS) \
+			$(LIBRARIES) $(check_LIBRARIES) $(EXTRA_LIBRARIES) \
+			$(LTLIBRARIES) $(check_LTLIBRARIES) $(EXTRA_LTLIBRARIES) \
+			so_locations \
+			$(MOSTLYCLEANFILES) \
+			$(TEST_LOGS) \
+			$(TEST_LOGS:.log=.trs) \
+			$(TEST_SUITE_LOG) \
+			$(TESTS:=.test) \
+			"*.gcda" \
+			"*.gcno" \
+			$(DISTCLEANFILES) \
+			$(am__CONFIG_DISTCLEAN_FILES) \
+			$(CONFIG_CLEAN_FILES) \
+			TAGS ID GTAGS GRTAGS GSYMS GPATH tags \
+			"*.tab.c" \
+			$(MAINTAINERCLEANFILES) \
+			$(BUILT_SOURCES) \
+			$(patsubst %.vala,%.c,$(filter %.vala,$(SOURCES))) \
+			$(filter %_vala.stamp,$(DIST_COMMON)) \
+			$(filter %.vapi,$(DIST_COMMON)) \
+			$(filter $(addprefix %,$(notdir $(patsubst %.vapi,%.h,$(filter %.vapi,$(DIST_COMMON))))),$(DIST_COMMON)) \
+			Makefile \
+			Makefile.in \
+			"*.orig" \
+			"*.rej" \
+			"*.bak" \
+			"*~" \
+			".*.sw[nop]" \
+			".dirstamp" \
+		; do echo "/$$x"; done; \
+		for x in \
+			"*.$(OBJEXT)" \
+			$(DEPDIR) \
+		; do echo "$$x"; done; \
+	} | \
+	sed "s@^/`echo "$(srcdir)" | sed 's/\(.\)/[\1]/g'`/@/@" | \
+	sed 's@/[.]/@/@g' | \
+	LC_ALL=C sort | uniq > $@.tmp && \
+	mv $@.tmp $@;
+
+all: $(srcdir)/.gitignore gitignore-recurse-maybe
+gitignore: $(srcdir)/.gitignore gitignore-recurse
+
+gitignore-recurse-maybe:
+	@for subdir in $(DIST_SUBDIRS); do \
+	  case " $(SUBDIRS) " in \
+	    *" $$subdir "*) :;; \
+	    *) test "$$subdir" = . -o -e "$$subdir/.git" || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) gitignore || echo "Skipping $$subdir");; \
+	  esac; \
+	done
+gitignore-recurse:
+	@for subdir in $(DIST_SUBDIRS); do \
+	    test "$$subdir" = . -o -e "$$subdir/.git" || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) gitignore || echo "Skipping $$subdir"); \
+	done
+
+maintainer-clean: gitignore-clean
+gitignore-clean:
+	-rm -f $(srcdir)/.gitignore
+
+.PHONY: gitignore-clean gitignore gitignore-recurse gitignore-recurse-maybe
