Demo-tarball and libtool.alberta.

Makefile.am

@@ -7,6 +7,29 @@ ACLOCAL_AMFLAGS  = -I ./m4
 
 EXTRA_DIST = DEMO $(wildcard m4/*.m4)
 
+#
+# install the libtool-script in the libexecdir s.t. Makefile.alberta
+# can use it even if the ALBERTA _sources_ are deleted.
+#
+libexec_SCRIPTS = libtool.alberta
+libtool.alberta: libtool
+	cp libtool libtool.alberta
+
+#
+# make a DEMO tar-ball and install it in pkgdatadir for later use
+#
+DEMO = @PACKAGE_NAME@-@PACKAGE_VERSION@-demo
+pkgdata_DATA = $(DEMO).tar.gz
+
+demo-tarball: $(DEMO).tar.gz
+
+$(DEMO): DEMO
+	mkdir $@ ; cd $@ ; \
+	( cd ../DEMO ; $(TAR) cf - . ) | $(TAR) xf -
+
+clean-local:
+	rm -rf $(DEMO)
+
 if MAINTAINER_MODE
 # This target only makes sense for maintainers!!
 cvs-clean:
@@ -41,3 +64,10 @@ dist-hook:
 
 endif
 
+SUFFIXES = .gz .tar .tar.gz
+
+%.tar: %
+	$(TAR) cf $@ $<
+
+%.gz: %
+	$(GZIP) -9 $<
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