anchor.diff:            libc = prevStage.glibc;
             inherit (prevStage) binutils coreutils gnugrep;
             name = name;
  -          stdenv = stage0.stdenv;
  +          stdenv = prevStage.ccWrapperStdenv;
           };
   
           extraAttrs = {
  
positive.code:   };
  
    stagesLinux = [
      ({}: stage0)
      stage1
      stage2
      stage3
  
negative.code: 
      overrides = self: super: {
        inherit (prevStage)
          ccWrapperStdenv
          binutils gcc-unwrapped coreutils gnugrep
          perl paxctl gnum4 bison;
        # This also contains the full, dynamically linked, final Glibc.
  