Adding another nvidia legacy driver. (they have one more, '71').

I use their major numbers to distinguish.
They seem to do so in http://www.nvidia.com/object/unix.html .

svn path=/nixpkgs/trunk/; revision=23411

pkgs/os-specific/linux/nvidia-x11/legacy173.nix

@@ -0,0 +1,45 @@
+{stdenv, fetchurl, kernel, xlibs, gtkLibs, zlib}:
+
+let 
+
+  versionNumber = "173.14.27";
+
+in
+
+stdenv.mkDerivation {
+  name = "nvidia-x11-${versionNumber}-${kernel.version}";
+  
+  builder = ./builder-legacy.sh;
+  
+  src =
+    if stdenv.system == "i686-linux" then
+      fetchurl {
+        url = "http://us.download.nvidia.com/XFree86/Linux-x86/${versionNumber}/NVIDIA-Linux-x86-${versionNumber}-pkg0.run";
+        sha256 = "08l3zs7sb8n4vjm1vg3yy1pkj54dq7gfrjashlqwbznaa2cdwknb";
+      }
+    else if stdenv.system == "x86_64-linux" then
+      fetchurl {
+        url = "http://us.download.nvidia.com/XFree86/Linux-x86_64/${versionNumber}/NVIDIA-Linux-x86_64-${versionNumber}-pkg0.run";
+        sha256 = "0pmg5whpk0rmzg8zb7qq2imva2hf346c4pvpz5sjir6346350blw";
+      }
+    else throw "nvidia-x11 does not support platform ${stdenv.system}";
+
+  inherit versionNumber kernel;
+
+  dontStrip = true;
+
+  glPath = stdenv.lib.makeLibraryPath [xlibs.libXext xlibs.libX11 xlibs.libXrandr];
+
+  cudaPath = stdenv.lib.makeLibraryPath [zlib stdenv.gcc.gcc];
+
+  programPath = stdenv.lib.makeLibraryPath [
+    gtkLibs.gtk gtkLibs.atk gtkLibs.pango gtkLibs.glib
+    xlibs.libXv
+  ];
+
+  meta = {
+    homepage = http://www.nvidia.com/object/unix.html;
+    description = "X.org driver and kernel module for Legacy NVIDIA graphics cards";
+    license = "unfree";
+  };
+}

pkgs/top-level/all-packages.nix

@@ -4614,7 +4614,8 @@ let
 
     nvidia_x11 = callPackage ../os-specific/linux/nvidia-x11 { };
 
-    nvidia_x11_legacy = callPackage ../os-specific/linux/nvidia-x11/legacy.nix { };
+    nvidia_x11_legacy96 = callPackage ../os-specific/linux/nvidia-x11/legacy96.nix { };
+    nvidia_x11_legacy173 = callPackage ../os-specific/linux/nvidia-x11/legacy173.nix { };
 
     openafsClient = callPackage ../servers/openafs-client { };