anchor.diff:      IPROUTESRC=$(echo iproute*)
       for script in $(find . -type f); do sed -e 's@#![ ]*/bin/bash@#! /bin/sh@' -i $script; done
       find . -type f | xargs sed -i 's@/usr/bin/perl@${perl}/bin/perl@g'
  +    find . -type f | xargs sed -i 's@/lib/cpp@cpp@g'
     '';
   
   
     # gentoo ebulid says tcsim doesn't compile with 2.6 headers..
  -  # DATADIR can stillb e overridden by env TOPDIR=...
  +  # DATADIR can still be overridden by env TOPDIR=...
  +  # Don't know whats it for except including the default .tc files
     configurePhase=''
       cat >> config << EOF
       YACC="yacc"
  -    DATA_DIR="/tmp/tcng/where_is_this_used"
  +    DATA_DIR="$out/lib/tcng"
       EOF
       ./configure \
       --kernel ${kernel}/lib/modules/2.6.28.6-default/build \
  
positive.code:       longDescription = ''
          useful links: http://linux-ip.net/articles/Traffic-Control-HOWTO,
          http://blog.edseek.com/~jasonb/articles/traffic_shaping/
        '';
    };
  }
  
negative.code:     make;
    '';
  
    # manually copy tcc and include files.. see comment above
    installPhase = ''
      ensureDir $out{,/sbin,/lib/tcng/include}
      make DESTDIR=$out install
      cp tcc/tcc $out/sbin
      cp tcc/*.tc $out/lib/tcng/include
    '';
  
    buildInputs =(with args; [bison flex db4 perl]);
  