diff --git a/pkgs/development/libraries/haskell/cairo/0.12.5.3.nix b/pkgs/development/libraries/haskell/cairo/0.12.5.3.nix
deleted file mode 100644
index 5ff7b64d2ea4..000000000000
--- a/pkgs/development/libraries/haskell/cairo/0.12.5.3.nix
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, cairo, gtk2hsBuildtools, libc, mtl, pkgconfig, utf8String
-, zlib
-}:
-
-cabal.mkDerivation (self: {
-  pname = "cairo";
-  version = "0.12.5.3";
-  sha256 = "1g5wn7dzz8cc7my09igr284j96d795jlnmy1q2hhlvssfhwbbvg7";
-  buildDepends = [ mtl utf8String ];
-  buildTools = [ gtk2hsBuildtools ];
-  extraLibraries = [ cairo libc pkgconfig zlib ];
-  pkgconfigDepends = [ cairo ];
-  meta = {
-    homepage = "http://projects.haskell.org/gtk2hs/";
-    description = "Binding to the Cairo library";
-    license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
-    hydraPlatforms = self.stdenv.lib.platforms.none;
-  };
-})
diff --git a/pkgs/development/libraries/haskell/cairo/0.13.0.4.nix b/pkgs/development/libraries/haskell/cairo/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/cairo/0.13.0.4.nix
rename to pkgs/development/libraries/haskell/cairo/default.nix
diff --git a/pkgs/development/libraries/haskell/glib/0.12.5.4.nix b/pkgs/development/libraries/haskell/glib/0.12.5.4.nix
deleted file mode 100644
index c819af766c22..000000000000
--- a/pkgs/development/libraries/haskell/glib/0.12.5.4.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, glib, gtk2hsBuildtools, libc, pkgconfig, utf8String
-}:
-
-cabal.mkDerivation (self: {
-  pname = "glib";
-  version = "0.12.5.4";
-  sha256 = "1jbqfcsmsghq67lwnk6yifs34lxvh6xfbzxzfryalifb4zglccz6";
-  buildDepends = [ utf8String ];
-  buildTools = [ gtk2hsBuildtools ];
-  extraLibraries = [ libc pkgconfig ];
-  pkgconfigDepends = [ glib ];
-  patches = self.stdenv.lib.optionals self.stdenv.isDarwin [ ./gtk2hs.patch ];
-  meta = {
-    homepage = "http://projects.haskell.org/gtk2hs/";
-    description = "Binding to the GLIB library for Gtk2Hs";
-    license = self.stdenv.lib.licenses.lgpl21;
-    platforms = self.ghc.meta.platforms;
-  };
-})
diff --git a/pkgs/development/libraries/haskell/glib/0.13.0.5.nix b/pkgs/development/libraries/haskell/glib/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/glib/0.13.0.5.nix
rename to pkgs/development/libraries/haskell/glib/default.nix
diff --git a/pkgs/development/libraries/haskell/glib/gtk2hs.patch b/pkgs/development/libraries/haskell/glib/gtk2hs.patch
deleted file mode 100644
index 210cf2eb571a..000000000000
--- a/pkgs/development/libraries/haskell/glib/gtk2hs.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-Author: Hamish Mackenzie <Hamish.K.Mackenzie@googlemail.com>
-Date:   Mon Jul 7 21:28:50 2014 +1200
-
-    Fixes #1
-
---- a/glib.cabal.orig	2014-11-03 14:52:40.000000000 -0600
-+++ b/glib.cabal	2014-11-03 14:52:51.000000000 -0600
-@@ -36,6 +36,7 @@
-                         utf8-string >= 0.2 && < 0.4,
-                         containers
-         build-tools:    gtk2hsC2hs >= 0.13.8
-+        cpp-options:    -U__BLOCKS__ -D__attribute__(A)=
-         if flag(closure_signals)
-           cpp-options:  -DUSE_GCLOSURE_SIGNALS_IMPL
-           c-sources: System/Glib/hsgclosure.ccommit aa22754e04616c354557fc350f96a8f7f331e984
diff --git a/pkgs/development/libraries/haskell/gtk/0.12.5.7.nix b/pkgs/development/libraries/haskell/gtk/0.12.5.7.nix
deleted file mode 100644
index 34c1480c8c34..000000000000
--- a/pkgs/development/libraries/haskell/gtk/0.12.5.7.nix
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, cairo, gio, glib, gtk, gtk2hsBuildtools, libc, mtl, pango
-, pkgconfig, text
-}:
-
-cabal.mkDerivation (self: {
-  pname = "gtk";
-  version = "0.12.5.7";
-  sha256 = "0hax4ixdz523753rc774c8g76bjlj56lsabyl5nwkpnppffpa73w";
-  buildDepends = [ cairo gio glib mtl pango text ];
-  buildTools = [ gtk2hsBuildtools ];
-  extraLibraries = [ libc pkgconfig ];
-  pkgconfigDepends = [ glib gtk ];
-  patches = self.stdenv.lib.optionals self.stdenv.isDarwin [ ./gtk.patch ];
-  meta = {
-    homepage = "http://projects.haskell.org/gtk2hs/";
-    description = "Binding to the Gtk+ graphical user interface library";
-    license = self.stdenv.lib.licenses.lgpl21;
-    platforms = self.ghc.meta.platforms;
-  };
-})
diff --git a/pkgs/development/libraries/haskell/gtk/0.13.0.3.nix b/pkgs/development/libraries/haskell/gtk/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/gtk/0.13.0.3.nix
rename to pkgs/development/libraries/haskell/gtk/default.nix
diff --git a/pkgs/development/libraries/haskell/gtk/gtk.patch b/pkgs/development/libraries/haskell/gtk/gtk.patch
deleted file mode 100644
index 242552950df1..000000000000
--- a/pkgs/development/libraries/haskell/gtk/gtk.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- a/gtk.cabal.orig	2014-11-03 15:13:42.000000000 -0600
-+++ b/gtk.cabal	2014-11-03 15:14:05.000000000 -0600
-@@ -148,6 +148,7 @@
- 
-         build-tools:    gtk2hsC2hs >= 0.13.8,
-                         gtk2hsHookGenerator, gtk2hsTypeGen
-+        cpp-options:    -U__BLOCKS__ -D__attribute__(A)=
- 
-         exposed-modules:
-           Graphics.UI.Gtk
diff --git a/pkgs/development/libraries/haskell/pango/0.12.5.3.nix b/pkgs/development/libraries/haskell/pango/0.12.5.3.nix
deleted file mode 100644
index e95c590e3545..000000000000
--- a/pkgs/development/libraries/haskell/pango/0.12.5.3.nix
+++ /dev/null
@@ -1,22 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, cairo, glib, gtk2hsBuildtools, libc, mtl, pango, pkgconfig
-, text
-}:
-
-cabal.mkDerivation (self: {
-  pname = "pango";
-  version = "0.12.5.3";
-  sha256 = "1n64ppz0jqrbzvimbz4avwnx3z0n5z2gbmbmca0hw9wqf9j6y79a";
-  buildDepends = [ cairo glib mtl text ];
-  buildTools = [ gtk2hsBuildtools ];
-  extraLibraries = [ libc pkgconfig ];
-  pkgconfigDepends = [ cairo pango ];
-  patches = self.stdenv.lib.optionals self.stdenv.isDarwin [ ./pango.patch ];
-  meta = {
-    homepage = "http://projects.haskell.org/gtk2hs/";
-    description = "Binding to the Pango text rendering engine";
-    license = self.stdenv.lib.licenses.lgpl21;
-    platforms = self.ghc.meta.platforms;
-  };
-})
diff --git a/pkgs/development/libraries/haskell/pango/0.13.0.3.nix b/pkgs/development/libraries/haskell/pango/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/pango/0.13.0.3.nix
rename to pkgs/development/libraries/haskell/pango/default.nix
diff --git a/pkgs/development/libraries/haskell/pango/pango.patch b/pkgs/development/libraries/haskell/pango/pango.patch
deleted file mode 100644
index af338cbe32ce..000000000000
--- a/pkgs/development/libraries/haskell/pango/pango.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- a/pango.cabal.orig	2014-11-03 15:11:35.000000000 -0600
-+++ b/pango.cabal	2014-11-03 15:11:57.000000000 -0600
-@@ -52,6 +52,7 @@
-           build-depends:  base < 4
- 
-         build-tools:    gtk2hsC2hs >= 0.13.8, gtk2hsTypeGen
-+        cpp-options:    -U__BLOCKS__ -D__attribute__(A)=
- 
-         exposed-modules: Graphics.Rendering.Pango
-                          Graphics.Rendering.Pango.Font
diff --git a/pkgs/development/tools/haskell/threadscope/threadscope.patch b/pkgs/development/tools/haskell/threadscope/threadscope.patch
deleted file mode 100644
index af504a11f26e..000000000000
--- a/pkgs/development/tools/haskell/threadscope/threadscope.patch
+++ /dev/null
@@ -1,14 +0,0 @@
---- a/threadscope.cabal.orig	2014-11-03 15:23:29.000000000 -0600
-+++ b/threadscope.cabal	2014-11-03 15:24:01.000000000 -0600
-@@ -41,7 +41,10 @@
- Executable threadscope
-   Main-is:           Main.hs
-   Build-Depends:     base >= 4.0 && < 5,
--                     gtk >= 0.12, cairo, glib, pango,
-+                     gtk >= 0.12 && < 0.13,
-+                     cairo < 0.13,
-+                     glib < 0.13,
-+                     pango < 0.13,
-                      binary, array, mtl, filepath,
-                      ghc-events >= 0.4.2,
-                      containers >= 0.2 && < 0.6,
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index a03e8588ac71..78b33244b1f4 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -356,15 +356,10 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   cabalMacosx = callPackage ../development/libraries/haskell/cabal-macosx {};
 
-  cairo_0_12_5_3 = callPackage ../development/libraries/haskell/cairo/0.12.5.3.nix {
+  cairo = callPackage ../development/libraries/haskell/cairo {
     inherit (pkgs) cairo zlib;
     libc = pkgs.stdenv.gcc.libc;
   };
-  cairo_0_13_0_4 = callPackage ../development/libraries/haskell/cairo/0.13.0.4.nix {
-    inherit (pkgs) cairo zlib;
-    libc = pkgs.stdenv.gcc.libc;
-  };
-  cairo = self.cairo_0_13_0_4;
 
   carray = callPackage ../development/libraries/haskell/carray {};
 
@@ -956,15 +951,10 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   GLFWB = callPackage ../development/libraries/haskell/GLFW-b {};
 
-  glib_0_12_5_4 = callPackage ../development/libraries/haskell/glib/0.12.5.4.nix {
+  glib = callPackage ../development/libraries/haskell/glib {
     glib = pkgs.glib;
     libc = pkgs.stdenv.gcc.libc;
   };
-  glib_0_13_0_5 = callPackage ../development/libraries/haskell/glib/0.13.0.5.nix {
-    glib = pkgs.glib;
-    libc = pkgs.stdenv.gcc.libc;
-  };
-  glib = self.glib_0_13_0_5;
 
   Glob = callPackage ../development/libraries/haskell/Glob {};
 
@@ -996,18 +986,10 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   gsasl = callPackage ../development/libraries/haskell/gsasl { inherit (pkgs) gsasl; };
 
-  gtk_0_12_5_7 = callPackage ../development/libraries/haskell/gtk/0.12.5.7.nix {
-    inherit (pkgs) gtk;
-    libc = pkgs.stdenv.gcc.libc;
-    glib = self.glib_0_12_5_4;
-    cairo = self.cairo_0_12_5_3;
-    pango = self.pango_0_12_5_3;
-  };
-  gtk_0_13_0_3 = callPackage ../development/libraries/haskell/gtk/0.13.0.3.nix {
+  gtk = callPackage ../development/libraries/haskell/gtk {
     inherit (pkgs) gtk;
     libc = pkgs.stdenv.gcc.libc;
   };
-  gtk = self.gtk_0_13_0_3;
 
   gtk3 = callPackage ../development/libraries/haskell/gtk3 {
     inherit (pkgs) gtk3;
@@ -1833,17 +1815,10 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   pandocTypes = callPackage ../development/libraries/haskell/pandoc-types {};
 
-  pango_0_12_5_3 = callPackage ../development/libraries/haskell/pango/0.12.5.3.nix {
-    inherit (pkgs) pango;
-    libc = pkgs.stdenv.gcc.libc;
-    glib = self.glib_0_12_5_4;
-    cairo = self.cairo_0_12_5_3;
-  };
-  pango_0_13_0_3 = callPackage ../development/libraries/haskell/pango/0.13.0.3.nix {
+  pango = callPackage ../development/libraries/haskell/pango {
     inherit (pkgs) pango;
     libc = pkgs.stdenv.gcc.libc;
   };
-  pango = self.pango_0_13_0_3;
 
   parallel_3_2_0_3 = callPackage ../development/libraries/haskell/parallel/3.2.0.3.nix {};
   parallel_3_2_0_4 = callPackage ../development/libraries/haskell/parallel/3.2.0.4.nix {};