anchor.diff:        makeMinimal
         install mandoc groff nbperf rpcgen
       ];
  -    extraPaths = with self; [ common.src ];
  +    extraPaths = with self; [ common ];
       headersOnly = true;
       noCC = true;
       meta.platforms = lib.platforms.netbsd;
       makeFlags = [ "RPCGEN_CPP=${buildPackages.stdenv.cc.cc}/bin/cpp" ];
     };
   
  -  common = mkDerivation {
  -    path = "common";
  -    version = "8.0";
  -    sha256 = "1fsm2b7p7zkhiz523jw75088cq2h39iknp0fp3di9a64bikwbhi1";
  -    noCC = true;
  -  };
  +  common = fetchNetBSD "common" "8.0" "1fsm2b7p7zkhiz523jw75088cq2h39iknp0fp3di9a64bikwbhi1";
   
     sys-headers = mkDerivation {
       pname = "sys-headers";
  
positive.code:     USE_FORT = "yes";
      MKPROFILE = "no";
      extraPaths = with self; [
        common.src i18n_module.src sys.src
        ld_elf_so.src libpthread.src libm.src libresolv.src
        librpcsvc.src libutil.src librt.src libcrypt.src
      ];
  
negative.code:     path = "lib/libutil";
      version = "8.0";
      sha256 = "077syyxd303m4x7avs5nxzk4c9n13d5lyk5aicsacqjvx79qrk3i";
      extraPaths = with self; [ common libc.src sys.src ];
      nativeBuildInputs = with buildPackages.netbsd; [
        bsdSetupHook
        makeMinimal
  