diff --git a/pkgs/servers/x11/xorg/replacements.nix b/pkgs/servers/x11/xorg/replacements.nix
new file mode 100644
index 00000000000..bf8a78dfbb1
--- /dev/null
+++ b/pkgs/servers/x11/xorg/replacements.nix
@@ -0,0 +1,21 @@
+{stdenv, fetchurl, xorg, automake, autoconf, libtool, composedArgsAndFun, ...}:
+{
+  xf86videoati = {src, suffix, ...}: 
+  composedArgsAndFun stdenv.mkDerivation {
+      name = "xf86-video-ati-${suffix}";
+      buildInputs = xorg.xf86videoati.buildInputs ++
+         [autoconf automake libtool];
+      builder = ./builder.sh;
+      inherit src;
+      preConfigure = ''
+        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -DPACKAGE_VERSION_MAJOR=6"
+        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -DPACKAGE_VERSION_MINOR=9"
+        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -DPACKAGE_VERSION_PATCHLEVEL=999"
+
+        sed -e 's/@DRIVER_MAN_SUFFIX@/man/g' -i man/Makefile.am
+        export DRIVER_MAN_DIR=$out/share/man/man5 
+
+        ./autogen.sh
+      '';
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index aa6e6e5b9ea..0953e1536fd 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5678,6 +5678,10 @@ let
       xkeyboard_config dbus hal;
   });
 
+  xorgReplacements = composedArgsAndFun (import ../servers/x11/xorg/replacements.nix) {
+    inherit fetchurl stdenv automake autoconf libtool xorg composedArgsAndFun;
+  };
+
   zabbixAgent = import ../servers/monitoring/zabbix {
     inherit fetchurl stdenv;
     enableServer = false;