anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "bash-completion";
  +  # TODO: Remove musl patch below upon next release!
     version = "2.9";
   
     src = fetchFromGitHub {
  
positive.code: 
    patches = [
      ./0001-Revert-build-Do-cmake-pc-and-profile-variable-replac.patch
    ];
  
    # ignore ip_addresses because it tries to touch network
  
negative.code: { stdenv, fetchFromGitHub
  , lib
  , fetchpatch
  , autoreconfHook
  , python3Packages
  , bashInteractive
  