anchor.diff: -{ fetchurl, stdenv, pkgconfig, libxml2, gconf, glib, gtk
  -, libbonoboui, libgnomeui, libgtkhtml, gtkhtml, libgnomeprint, goffice, enchant
  -, gettext, intltool, perl, guile, slibGuile, swig, isocodes, bzip2
  -, makeWrapper }:
  +{ fetchurl, stdenv, pkgconfig, libxml2, gconf, glib, gtk, libgnomeui, libofx
  +, libgtkhtml, gtkhtml, libgnomeprint, goffice, enchant, gettext, libbonoboui
  +, intltool, perl, guile, slibGuile, swig, isocodes, bzip2, makeWrapper
  +}:
   
  -# TODO: Fix the gconf issue. The following posting might be the missing clue:
  -# <http://osdir.com/ml/linux.distributions.nixos/2007-09/msg00003.html>.
  +/******************************************************************************
  + *                            Note for NixOS users                            *
  + ******************************************************************************
  + *
  + * GnuCash relies on the GConf daemon to store and retrieve its internal
  + * configuration. That daemon implements a Windows-like, system-wide registry,
  + * which is very hard to support on NixOS because the concept is inherently
  + * impure. To register GnuCash's configuration schemas with GConf, you have to
  + * add ${gnucash}/etc/gconf/gconf.xml.defaults to GConf's search path, i.e. by
  + * adding the line
  + *
  + *   xml:readonly:$(HOME)/.nix-profile/etc/gconf/gconf.xml.defaults/
  + *
  + * to ~/.gconf.path in your user's home directory. Furthermore, the line
  + *
  + *   services.dbus.packages = [ pkgs.gnome.GConf ];
  + *
  + * must be added to /etc/nixos/configuration.nix to make sure the DBus daemon
  + * knows about GConf and starts it automatically whenever a program (such as
  + * GnuCash) needs it.
  + */
   
   let
     name = "gnucash-2.4.7";
  
positive.code:         --prefix GUILE_LOAD_PATH ":" "$GUILE_LOAD_PATH"                 \
          --prefix LD_LIBRARY_PATH ":" "${libgnomeui}/lib/libglade/2.0"   \
          --prefix LD_LIBRARY_PATH ":" "${libbonoboui}/lib/libglade/2.0"  \
  	--set GCONF_CONFIG_SOURCE 'xml::~/.gconf'			\
          --prefix PATH ":" "${gconf}/bin"                                \
          --suffix PATH ":" "$out/bin"
      done
  
negative.code:   };
  
    buildInputs = [
      pkgconfig libxml2 gconf glib gtk libgnomeui libgtkhtml gtkhtml
      libgnomeprint goffice enchant gettext intltool perl guile slibGuile
      swig isocodes bzip2 makeWrapper libofx
    ];
  
    configureFlags = "CFLAGS=-O3 CXXFLAGS=-O3 --disable-dbi --enable-ofx";
  
    postInstall = ''
      sed -i $out/bin/update-gnucash-gconf                                \
  