diff --git a/wx.cabal b/wx.cabal
--- a/wx.cabal
+++ b/wx.cabal
@@ -1,38 +1,53 @@
 Name:           wx
-Version:        0.12.1.3
+Version:        0.12.1.4
 License:        LGPL
 License-file:   license.txt
 Homepage:       http://haskell.org/haskellwiki/WxHaskell
 Author:         Daan Leijen
 Build-Type:     Simple
 Category:       GUI, User interfaces
-Cabal-Version:  >= 1.8
+Cabal-Version:  >= 1.2
 Description:    wxHaskell is a portable and native GUI library for Haskell.  It is built on top of wxWidgets - a comprehensive C++ library that is portable across all major GUI platforms; including GTK, Windows, X11, and MacOS X.  This version works with wxWidgets 2.8 only.
 Maintainer:     wxhaskell-devel@lists.sourceforge.net
 Synopsis:       wxHaskell
 Data-Files:     wx.cabal
 
+Flag splitBase
+    Description: Choose the new smaller, split-up base package.
+
+Flag newBase
+    Description: pick base >= 4
+
 Library
-  build-depends:
-    base >= 4 && < 5,
-    wxcore >= 0.12.1.3,
-    stm
+    if flag(splitBase)
+        build-depends: wxcore >= 0.12.1.4,
+                       stm
+        if flag(newBase)
+            build-depends:
+                base >= 4 && < 5
+        else
+            build-depends:
+                base >= 3 && < 4
+    else
+        build-depends: base <  3,
+                       wxcore >= 0.12.1.4,
+                       stm
 
-  Exposed-Modules:
-    Graphics.UI.WX.Draw
-    Graphics.UI.WX.Media
-    Graphics.UI.WX.TopLevelWindow
-    Graphics.UI.WX.Attributes
-    Graphics.UI.WX.Window
-    Graphics.UI.WX.Variable
-    Graphics.UI.WX.Events
-    Graphics.UI.WX.Frame
-    Graphics.UI.WX.Layout
-    Graphics.UI.WX.Controls
-    Graphics.UI.WX.Types
-    Graphics.UI.WX.Dialogs
-    Graphics.UI.WX.Classes
-    Graphics.UI.WX.Timer
-    Graphics.UI.WX.Menu
-    Graphics.UI.WX
-  Hs-Source-Dirs: src
+ Exposed-Modules:
+  Graphics.UI.WX.Draw
+  Graphics.UI.WX.Media
+  Graphics.UI.WX.TopLevelWindow
+  Graphics.UI.WX.Attributes
+  Graphics.UI.WX.Window
+  Graphics.UI.WX.Variable
+  Graphics.UI.WX.Events
+  Graphics.UI.WX.Frame
+  Graphics.UI.WX.Layout
+  Graphics.UI.WX.Controls
+  Graphics.UI.WX.Types
+  Graphics.UI.WX.Dialogs
+  Graphics.UI.WX.Classes
+  Graphics.UI.WX.Timer
+  Graphics.UI.WX.Menu
+  Graphics.UI.WX
+ Hs-Source-Dirs: src