add iputils here too. For glibc I've used stdenv.gcc.glibc, which might not be the right glibc to use (but I don't know)

svn path=/nixpkgs/trunk/; revision=1235

pkgs/system/all-packages-generic.nix

@@ -577,6 +577,10 @@ rec {
     inherit fetchurl stdenv;
   };
 
+  iputils = (import ../os-specific/linux/iputils) {
+    inherit fetchurl stdenv kernelHeaders;
+    glibc = stdenv.gcc.glibc;
+  };
 
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