anchor.diff:  
   # Liquidsoap 1.4.2 is not compatible with menhir ≥ 20220210
   # Locally override menhir to an earlier version
  -let menhirLib = ocamlPackages.menhirLib.overrideAttrs (o: rec {
  +let
  +  menhirLib = ocamlPackages.menhirLib.overrideAttrs (o: rec {
       version = "20211128";
       src = fetchFromGitLab {
         domain = "gitlab.inria.fr";
  
positive.code:     inherit menhirLib menhirSdk;
    };
  
  in
  
  stdenv.mkDerivation {
  
negative.code:       ocamlPackages.xmlm ocamlPackages.ocaml_pcre
        ocamlPackages.camomile
        ocamlPackages.fdkaac
        srt ocamlPackages.sedlex menhir menhirLib
      ];
  
    hardeningDisable = [ "format" "fortify" ];
  