anchor.diff:    hardeningDisable = [ "format" ];
   
     configureFlags = [
  -    "GMP_CFLAGS=-I${gmp.dev}/include"
  +    "GMP_CFLAGS=-I${lib.getDev gmp}/include"
       "GMP_LDFLAGS=-L${gmp.out}/lib"
     ];
   
  
positive.code:     cd contrib/tinycc
      ./configure --cc=cc \
        --elfinterp=$(< $NIX_CC/nix-support/dynamic-linker) \
        --crtprefix=${getLib stdenv.cc.libc}/lib \
        --sysincludepaths=${getDev stdenv.cc.libc}/include:{B}/include \
        --libpaths=${getLib stdenv.cc.libc}/lib
    )'';
  
    postInstall = ''
  
negative.code: { lib, stdenv, fetchFromGitHub, fetchpatch, makeWrapper, gmp, gcc }:
  
  stdenv.mkDerivation rec {
    pname = "mkcl";
    version = "1.1.11";
  
  