lib.dvi target:  Added commands to generate the modules index.
diff --git a/Doc/Makefile b/Doc/Makefile
index db5b4ad..0cb1f86 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -123,11 +123,14 @@
     liblocale.tex libbasehttp.tex
 
 # Library document
-lib.dvi: $(LIBFILES)
+lib.dvi: modindex.py $(LIBFILES)
 	touch lib.ind
+	touch modules.ind
 	$(LATEX) lib
+	./modindex.py modules.idx
 	./fix_hack lib.idx
 	$(MAKEINDEX) lib.idx
+	./modindex.py modules.idx
 	$(LATEX) lib
 
 lib.ps:	lib.dvi