anchor.diff:        minimal = true;
       };
   
  -    ghc884 = callPackage ../development/compilers/ghc/8.8.4.nix {
  +    ghc884 = callPackage ../development/compilers/ghc/8.8.4.nix ({
         # aarch64 ghc865Binary gets SEGVs due to haskell#15449 or similar
         # Musl bindists do not exist for ghc 8.6.5, so we use 8.10.* for them
         bootPkgs = if stdenv.isAarch64 || stdenv.targetPlatform.isMusl then
  
positive.code:   # Use this rather than `rec { ... }` below for sake of overlays.
    inherit (pkgs.haskell) compiler packages;
  
  in {
    lib = haskellLib;
  
  
negative.code:       inherit (buildPackages.python3Packages) sphinx;
        buildLlvmPackages = buildPackages.llvmPackages_10;
        llvmPackages = pkgs.llvmPackages_10;
      } // muslArgs);
      ghcHEAD = callPackage ../development/compilers/ghc/head.nix ({
        bootPkgs = packages.ghc901; # no binary yet
        inherit (buildPackages.python3Packages) sphinx;
        buildLlvmPackages = buildPackages.llvmPackages_10;
        llvmPackages = pkgs.llvmPackages_10;
        libffi = pkgs.libffi;
      } // muslArgs);
  
      # The integer-simple attribute set contains all the GHC compilers
      # build with integer-simple instead of integer-gmp.
  