diff --git a/pkgs/desktops/kde-4/kdebase/builder.sh b/pkgs/desktops/kde-4/kdebase/builder.sh
deleted file mode 100755
index 41cff761b36..00000000000
--- a/pkgs/desktops/kde-4/kdebase/builder.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-source ${stdenv}/setup
-
-myPreBuild()
-{
-	for i in ${qt}/include/*; do
-		NIX_CFLAGS_COMPILE="-I$i ${NIX_CFLAGS_COMPILE}"
-	done;
-	echo "${NIX_CFLAGS_COMPILE}"
-}
-preBuild=myPreBuild
-
-myPatchPhase()
-{
-	echo "Fixing dbus calls in CMakeLists.txt files"
-# Trailing slash in sed is essential
-	find .. -name CMakeLists.txt \
-	| xargs sed -e "s@\${DBUS_INTERFACES_INSTALL_DIR}/@${kdelibs}/share/dbus-1/interfaces/@" -i
-	sed -e '/^#define HAS_RANDR_1_2 1$/d' -i ../workspace/kcontrol/randr/randr.h
-}
-patchPhase=myPatchPhase
-genericBuild
diff --git a/pkgs/desktops/kde-4/kdebase/default.nix b/pkgs/desktops/kde-4/kdebase/default.nix
deleted file mode 100644
index ebc0ba3cab3..00000000000
--- a/pkgs/desktops/kde-4/kdebase/default.nix
+++ /dev/null
@@ -1,55 +0,0 @@
-{ stdenv, fetchurl
-, inputproto, kbproto, scrnsaverproto, xextproto, xf86miscproto
-, xf86vidmodeproto, xineramaproto, xproto
-, libICE
-, libX11
-, libXau
-, libXcomposite
-, libXcursor
-, libXdamage
-, libXdmcp
-, libXext
-, libXfixes
-, libXft
-, libXi
-, libXinerama
-, libXpm
-, libXrandr
-, libXrender
-, libXScrnSaver
-, libXt
-, libXtst
-, libXv
-, libXxf86misc
-, libxkbfile
-, zlib, perl, qt, openssl, pcre
-, pkgconfig, libjpeg, libpng, libtiff, libxml2, libxslt, libtool, expat
-, freetype, bzip2, strigi, cmake, shared_mime_info, alsaLib, libungif
-, libusb, glib, mesa
-, cups, kdelibs, kdepimlibs
-}:
-
-stdenv.mkDerivation {
-  name = "kdebase-4.0beta1";
-  builder = ./builder.sh;
-  
-  src = fetchurl {
-    url = mirror://kde/unstable/3.92/src/kdebase-3.92.0.tar.bz2;
-    sha256 = "1xh5a93l6anmix358fll4xfqm5fl4hpm1ksmlab8hr8s7vqng707";
-  };
-
-  buildInputs = [
-	inputproto kbproto scrnsaverproto xextproto xf86miscproto xf86vidmodeproto
-	xineramaproto xproto libICE libX11 libXau libXcomposite libXcursor
-	libXdamage libXdmcp libXext libXfixes libXft libXi libXpm libXrandr
-	libXinerama mesa stdenv.gcc.libc
-	libXrender libXScrnSaver libXt libXtst libXv libXxf86misc libxkbfile
-    zlib perl qt openssl pcre 
-    pkgconfig libjpeg libpng libtiff libxml2 libxslt expat
-    libtool freetype bzip2 strigi cmake shared_mime_info alsaLib libungif cups
-	kdelibs kdepimlibs libusb glib
-  ];
-# TODO : it should be done through setup-hooks
-  KDEDIRS="${kdelibs}/share/apps:${kdepimlibs}/share/apps";
-  inherit qt kdelibs;
-}
diff --git a/pkgs/desktops/kde-4/kdelibs/default.nix b/pkgs/desktops/kde-4/kdelibs/default.nix
deleted file mode 100644
index 9d59da00088..00000000000
--- a/pkgs/desktops/kde-4/kdelibs/default.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{ stdenv, fetchurl
-, inputproto, kbproto, scrnsaverproto, xextproto, xf86miscproto
-, xf86vidmodeproto, xineramaproto, xproto
-, libICE
-, libX11
-, libXau
-, libXcomposite
-, libXcursor
-, libXdamage
-, libXdmcp
-, libXext
-, libXfixes
-, libXft
-, libXi
-, libXpm
-, libXrandr
-, libXrender
-, libXScrnSaver
-, libXt
-, libXtst
-, libXv
-, libXxf86misc
-, libxkbfile
-, zlib, perl, qt, openssl, pcre
-, pkgconfig, libjpeg, libpng, libtiff, libxml2, libxslt, libtool, expat
-, freetype, bzip2, strigi, cmake, shared_mime_info, alsaLib, libungif
-, cups
-}:
-
-stdenv.mkDerivation {
-  name = "kdelibs-4.0beta1";
-  
-  src = fetchurl {
-    url = mirror://kde/unstable/3.92/src/kdelibs-3.92.0.tar.bz2;
-    sha256 = "19jd9nx5g0ayxavj3ys52wx5ppxw9yr9jylxk7qplxsm525ryf1p";
-  };
-
-  buildInputs = [
-	inputproto kbproto scrnsaverproto xextproto xf86miscproto xf86vidmodeproto
-	xineramaproto xproto libICE libX11 libXau libXcomposite libXcursor
-	libXdamage libXdmcp libXext libXfixes libXft libXi libXpm libXrandr
-	libXrender libXScrnSaver libXt libXtst libXv libXxf86misc libxkbfile
-    zlib perl qt openssl pcre 
-    pkgconfig libjpeg libpng libtiff libxml2 libxslt expat
-    libtool freetype bzip2 strigi cmake shared_mime_info alsaLib libungif cups
-  ];
-  patchPhase = "sed -e 's@ NO_SYSTEM_PATH@@g' -i ../cmake/modules/FindX11.cmake";
-}
diff --git a/pkgs/desktops/kde-4/kdepim/builder.sh b/pkgs/desktops/kde-4/kdepim/builder.sh
deleted file mode 100755
index 73d0e9febcd..00000000000
--- a/pkgs/desktops/kde-4/kdepim/builder.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-source ${stdenv}/setup
-
-myPreBuild()
-{
-	for i in ${qt}/include/*; do
-		NIX_CFLAGS_COMPILE="-I$i ${NIX_CFLAGS_COMPILE}"
-	done;
-	echo "${NIX_CFLAGS_COMPILE}"
-}
-preBuild=myPreBuild
-
-myPatchPhase()
-{
-	sed -e '3s/)/ ${CMAKE_MODULE_PATH})/' -i ../CMakeLists.txt
-}
-patchPhase=myPatchPhase
-
-genericBuild
diff --git a/pkgs/desktops/kde-4/kdepim/default.nix b/pkgs/desktops/kde-4/kdepim/default.nix
deleted file mode 100644
index dd1e706bf74..00000000000
--- a/pkgs/desktops/kde-4/kdepim/default.nix
+++ /dev/null
@@ -1,55 +0,0 @@
-{ stdenv, fetchurl
-, inputproto, kbproto, scrnsaverproto, xextproto, xf86miscproto
-, xf86vidmodeproto, xineramaproto, xproto
-, libICE
-, libX11
-, libXau
-, libXcomposite
-, libXcursor
-, libXdamage
-, libXdmcp
-, libXext
-, libXfixes
-, libXft
-, libXi
-, libXinerama
-, libXpm
-, libXrandr
-, libXrender
-, libXScrnSaver
-, libXt
-, libXtst
-, libXv
-, libXxf86misc
-, libxkbfile
-, zlib, perl, qt, openssl, pcre
-, pkgconfig, libjpeg, libpng, libtiff, libxml2, libxslt, libtool, expat
-, freetype, bzip2, strigi, cmake, shared_mime_info, alsaLib, libungif
-, libusb, glib, mesa, gpgme, boost
-, cups, kdelibs, kdepimlibs
-}:
-
-stdenv.mkDerivation {
-  name = "kdepim-4.0beta1";
-  builder = ./builder.sh;
-  
-  src = fetchurl {
-    url = mirror://kde/unstable/3.92/src/kdepim-3.92.0.tar.bz2;
-    sha256 = "1wlq1h7j07f24n1mjnv9wbfsxn2vn24qfn5dgn4j4fsl84qha16i";
-  };
-
-  buildInputs = [
-	inputproto kbproto scrnsaverproto xextproto xf86miscproto xf86vidmodeproto
-	xineramaproto xproto libICE libX11 libXau libXcomposite libXcursor
-	libXdamage libXdmcp libXext libXfixes libXft libXi libXpm libXrandr
-	libXinerama mesa stdenv.gcc.libc
-	libXrender libXScrnSaver libXt libXtst libXv libXxf86misc libxkbfile
-    zlib perl qt openssl pcre 
-    pkgconfig libjpeg libpng libtiff libxml2 libxslt expat
-    libtool freetype bzip2 strigi cmake shared_mime_info alsaLib libungif cups
-	kdelibs kdepimlibs libusb glib gpgme boost
-  ];
-# TODO : it should be done through setup-hooks
-  KDEDIRS="${kdelibs}/share/apps:${kdepimlibs}/share/apps";
-  inherit qt kdelibs;
-}
diff --git a/pkgs/desktops/kde-4/kdepimlibs/default.nix b/pkgs/desktops/kde-4/kdepimlibs/default.nix
deleted file mode 100644
index 44c6728b5e3..00000000000
--- a/pkgs/desktops/kde-4/kdepimlibs/default.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{ stdenv, fetchurl
-, inputproto, kbproto, scrnsaverproto, xextproto, xf86miscproto
-, xf86vidmodeproto, xineramaproto, xproto
-, libICE
-, libX11
-, libXau
-, libXcomposite
-, libXcursor
-, libXdamage
-, libXdmcp
-, libXext
-, libXfixes
-, libXft
-, libXi
-, libXpm
-, libXrandr
-, libXrender
-, libXScrnSaver
-, libXt
-, libXtst
-, libXv
-, libXxf86misc
-, libxkbfile
-, zlib, perl, qt, openssl, pcre
-, pkgconfig, libjpeg, libpng, libtiff, libxml2, libxslt, libtool, expat
-, freetype, bzip2, strigi, cmake, shared_mime_info, alsaLib, libungif
-, cups, kdelibs, boost, gpgme
-}:
-
-stdenv.mkDerivation {
-  name = "kdepimlibs-4.0beta1";
-  
-  src = fetchurl {
-    url = mirror://kde/unstable/3.92/src/kdepimlibs-3.92.0.tar.bz2;
-    sha256 = "0q7zzj8n282xaxvdij74fb17w5c1vja7izxfrkcbq7arn9f40wbx";
-  };
-
-  buildInputs = [
-	inputproto kbproto scrnsaverproto xextproto xf86miscproto xf86vidmodeproto
-	xineramaproto xproto libICE libX11 libXau libXcomposite libXcursor
-	libXdamage libXdmcp libXext libXfixes libXft libXi libXpm libXrandr
-	libXrender libXScrnSaver libXt libXtst libXv libXxf86misc libxkbfile
-    zlib perl qt openssl pcre 
-    pkgconfig libjpeg libpng libtiff libxml2 libxslt expat
-    libtool freetype bzip2 strigi cmake shared_mime_info alsaLib libungif cups
-	kdelibs boost gpgme
-  ];
-}