ocamlPackages.morbig: use broken instead of throw on incompatible ocaml

pkgs/development/ocaml-modules/morbig/default.nix

@@ -9,35 +9,32 @@
   visitors,
 }:
 
-lib.throwIf (lib.versionAtLeast ocaml.version "5.4")
-  "morbig is not available for OCaml ${ocaml.version}"
+buildDunePackage rec {
+  pname = "morbig";
+  version = "0.11.0";
 
-  buildDunePackage
-  rec {
-    pname = "morbig";
-    version = "0.11.0";
+  src = fetchFromGitHub {
+    owner = "colis-anr";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-fOBaJHHP/Imi9UDLflI52OdKDcmMxpl+NH3pfofmv/o=";
+  };
 
-    src = fetchFromGitHub {
-      owner = "colis-anr";
-      repo = pname;
-      rev = "v${version}";
-      hash = "sha256-fOBaJHHP/Imi9UDLflI52OdKDcmMxpl+NH3pfofmv/o=";
-    };
+  nativeBuildInputs = [
+    menhir
+  ];
 
-    nativeBuildInputs = [
-      menhir
-    ];
+  propagatedBuildInputs = [
+    menhirLib
+    ppx_deriving_yojson
+    visitors
+  ];
 
-    propagatedBuildInputs = [
-      menhirLib
-      ppx_deriving_yojson
-      visitors
-    ];
-
-    meta = {
-      homepage = "https://github.com/colis-anr/${pname}";
-      description = "Static parser for POSIX Shell";
-      license = lib.licenses.gpl3Plus;
-      maintainers = with lib.maintainers; [ niols ];
-    };
-  }
+  meta = {
+    homepage = "https://github.com/colis-anr/${pname}";
+    description = "Static parser for POSIX Shell";
+    license = lib.licenses.gpl3Plus;
+    maintainers = with lib.maintainers; [ niols ];
+    broken = lib.versionAtLeast ocaml.version "5.4";
+  };
+}