Distribute Meson build system

Makefile.am

@@ -15,6 +15,21 @@ endif
 EXTRA_DIST =						\
 	autogen.sh
 
+# Distribute the Meson build system files as well
+EXTRA_DIST += \
+	meson.build			\
+	meson_options.txt		\
+	meson_post_install.sh		\
+	applets/brightness/meson.build	\
+	applets/inhibit/meson.build	\
+	data/meson.build		\
+	data/icons/meson.build		\
+	help/meson.build		\
+	help/LINGUAS			\
+	po/meson.build			\
+	policy/meson.build		\
+	src/meson.build
+
 clean-local :
 	rm -f *~