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-rw-r--r--pkgs/development/ocaml-modules/lablgtk/default.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/development/ocaml-modules/lablgtk/default.nix b/pkgs/development/ocaml-modules/lablgtk/default.nix
index c2f50c4e5b8..f303323b7c8 100644
--- a/pkgs/development/ocaml-modules/lablgtk/default.nix
+++ b/pkgs/development/ocaml-modules/lablgtk/default.nix
@@ -6,6 +6,8 @@ let
   version = "2.16.0";
 in
 
+assert stdenv.lib.versionAtLeast ocaml_version "3.12";
+
 stdenv.mkDerivation (rec {
   name = "${pname}-${version}";
   src = fetchurl {