anchor.diff:        ${optionalString (tsmbac != null) "--enable-tivoli-tsm"}
         ${optionalString (ncurses == null) "--disable-gtx"}
         "--disable-linux-d_splice-alias-extra-iput"
  -      "--libexecdir=$server/libexec"
       )
     '' + optionalString (tsmbac != null) ''
       export XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I${tsmbac}/lib64/sample -DXBSA_TSMLIB=\\\"${tsmbac}/lib64/libApiTSM64.so\\\""
  
positive.code:   # binaries.
    preFixup = ''
      rm -rf "$(pwd)" && mkdir "$(pwd)"
  
      find $out -type f -exec remove-references-to -t $server '{}' '+'
    '';
  
    meta = with stdenv.lib; {
  
negative.code: { stdenv, buildPackages, fetchurl, which, autoconf, automake, flex
  , yacc , glibc, perl, kerberos, libxslt, docbook_xsl, file
  , docbook_xml_dtd_43, libtool_2
  , ncurses # Extra ncurses utilities. Needed for debugging and monitoring.
  , tsmbac ? null # Tivoli Storage Manager Backup Client from IBM
  }:
  