anchor.diff: -{ stdenv, fetchurl, kernel, perl }:
  +{ stdenv, fetchurl, kernel, perl, makeWrapper }:
   
   assert stdenv.isLinux;
   
  
positive.code:       --with-system-map=${kernel}/System.map
      )
    '';
        
    meta = {
      description = "Berkeley Lab Checkpoint/Restart for Linux (BLCR)";
  
negative.code:     sha256 = "c8243c9a7a215d4fc4e8f2199045711cf711a6f2e0b39a94413478ffae110eac";
    };
  
    buildInputs = [ perl makeWrapper ];
  
    preConfigure = ''
      configureFlagsArray=(
  