anchor.diff:      cdrkit flex bison qemu pcre augeas libxml2 acl libcap libcap_ng libconfig
       systemd fuse yajl libvirt gmp readline file hivex libintlperl GetoptLong
       SysVirt numactl xen libapparmor getopt perlPackages.ModuleBuild
  -    jdk
  -  ] ++ (with ocamlPackages; [ ocaml findlib ocamlbuild ocaml_libvirt ocaml_gettext ounit ]);
  +  ] ++ (with ocamlPackages; [ ocaml findlib ocamlbuild ocaml_libvirt ocaml_gettext ounit ])
  +    ++ stdenv.lib.optional javaSupport jdk;
   
     prePatch = ''
       # build-time scripts
  
positive.code:     # some scripts hardcore /usr/bin/env which is not available in the build env
      patchShebangs .
    '';
    configureFlags = "--disable-appliance --disable-daemon";
    patches = [ ./libguestfs-syms.patch ];
    NIX_CFLAGS_COMPILE="-I${libxml2.dev}/include/libxml2/";
    installFlags = "REALLY_INSTALL=yes";
  
negative.code: , ncurses, cpio, gperf, perl, cdrkit, flex, bison, qemu, pcre, augeas, libxml2
  , acl, libcap, libcap_ng, libconfig, systemd, fuse, yajl, libvirt, hivex
  , gmp, readline, file, libintlperl, GetoptLong, SysVirt, numactl, xen, libapparmor
  , getopt, perlPackages, ocamlPackages
  , javaSupport ? false, jdk ? null }:
  
  assert javaSupport -> jdk != null;
  
  stdenv.mkDerivation rec {
    name = "libguestfs-${version}";
  