anchor.diff:      version = "8.0";
       sha256 = "0kk6v9k2bygq0wf9gbinliqzqpzs9bgxn0ndyl2wcv3hh2bmsr9p";
       patches = [ ./locale.patch ];
  +    NIX_CFLAGS_COMPILE = "-DYESSTR=__YESSTR -DNOSTR=__NOSTR";
     };
   
     };
  
positive.code:     HOST_SH = "${buildPackages.bash}/bin/sh";
      OBJCOPY = if stdenv.isDarwin then "true" else "objcopy";
      RPCGEN_CPP = "${stdenv.cc.targetPrefix}cpp";
  
      INSTALL_FILE = "install -U -c";
      INSTALL_DIR = "xinstall -U -d";
  
negative.code:       install -D $NETBSDSRCDIR/include/utmpx.h $out/include/utmpx.h
        install -D $NETBSDSRCDIR/include/tzfile.h $out/include/tzfile.h
        install -D $NETBSDSRCDIR/sys/sys/tree.h $out/include/sys/tree.h
        install -D $NETBSDSRCDIR/include/nl_types.h $out/include/nl_types.h
        install -D $NETBSDSRCDIR/include/stringlist.h $out/include/stringlist.h
     '' + lib.optionalString stdenv.isDarwin ''
        mkdir -p $out/include/ssp
        touch $out/include/ssp/ssp.h
     '' + ''
        mkdir -p $out/lib/pkgconfig
        substitute ${./libbsd-overlay.pc} $out/lib/pkgconfig/libbsd-overlay.pc \
          --subst-var-by out $out \
  