anchor.diff:    preConfigure = lib.optionalString stdenv.hostPlatform.isUnix ''
       perl mkfiles.pl
       ( cd doc ; make );
  -    sed -e '/AM_PATH_GTK(/d' \
  -        -e '/AC_OUTPUT/iAM_PROG_CC_C_O' \
  -        -e '/AC_OUTPUT/iAM_PROG_AR' -i configure.ac
       ./mkauto.sh
       cd unix
     '' + lib.optionalString stdenv.hostPlatform.isWindows ''
  
positive.code:   nativeBuildInputs = [ autoconf automake halibut libtool perl pkgconfig ];
    buildInputs = lib.optionals stdenv.hostPlatform.isUnix [
      gtk2 ncurses
    ];
    enableParallelBuilding = true;
  
    meta = with lib; {
  
negative.code:       "https://the.earth.li/~sgtatham/putty/${version}/${pname}-${version}.tar.gz"
        "ftp://ftp.wayne.edu/putty/putty-website-mirror/${version}/${pname}-${version}.tar.gz"
      ];
      sha256 = "076z34jpik2dmlwxicvf1djjgnahcqv12rjhmb9yq6ml7x0bbc1x";
    };
  
    # glib-2.62 deprecations
  