Makefile.in: Add rules to rebuild config.h.in when needed.

	* libI77/Makefile.in: Add rules to rebuild config.h.in when
	needed.

From-SVN: r42191

libf2c/ChangeLog

+2001-05-17  Andreas Jaeger  <aj@suse.de>
+
+	* libI77/Makefile.in: Add rules to rebuild config.h.in when
+	needed.
+
 2001-05-16  Andreas Jaeger  <aj@suse.de>
 
 	* libI77/backspace.c: Include "config.h".

libf2c/libI77/Makefile.in

@@ -81,6 +81,17 @@ ${srcdir}/configure: configure.in
 	rm -f config.cache
 	cd ${srcdir} && autoconf
 
+# autoheader might not change config.h.in, so touch a stamp file.
+${srcdir}/config.h.in: stamp-h.in
+${srcdir}/stamp-h.in: configure.in
+	(cd ${srcdir} && autoheader)
+	@rm -f ${srcdir}/stamp-h.in
+	echo timestamp > ${srcdir}/stamp-h.in
+
+config.h: stamp-h; @true
+stamp-h: config.h.in config.status
+	$(SHELL) config.status
+
 VersionI.o: Version.c
 	$(CC) -c $(ALL_CFLAGS) -o $@ $(srcdir)/Version.c