diff --git a/hmarkup.cabal b/hmarkup.cabal
--- a/hmarkup.cabal
+++ b/hmarkup.cabal
@@ -1,20 +1,29 @@
 Name: hmarkup
-Version: 3000.0.0
+Version: 3000.0.1
+Cabal-version: >= 1.2
+Build-type: Simple
 Copyright: Bjorn Bringert 2006
 Maintainer: bjorn@bringert.net
 Author: Bjorn Bringert
 License: BSD3
 License-file: LICENSE
-build-depends: base, mtl, parsec, network, xhtml >= 3000.0.0
-Extensions: 
 Synopsis: Simple wikitext-like markup format implementation.
 Description:
  This package implements a simple extensible wikitext-like markup format.
  Currently the only implemented output format is XHTML.
-Exposed-Modules: 
-  Text.HMarkup,
-  Text.HMarkup.Parse,
-  Text.HMarkup.Types,
-  Text.HMarkup.XHtml
-Other-modules: Text.HMarkup.Entities
-ghc-options: -O2 -Wall
+
+Flag split-base
+
+Library
+  Build-depends: mtl, parsec, network, xhtml >= 3000.0.0
+  if flag(split-base)
+    Build-depends: base >= 3.0, containers
+  else
+    Build-depends: base < 3.0
+  Exposed-Modules: 
+    Text.HMarkup,
+    Text.HMarkup.Parse,
+    Text.HMarkup.Types,
+    Text.HMarkup.XHtml
+  Other-modules: Text.HMarkup.Entities
+  Ghc-options: -Wall