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-rw-r--r--pkgs/build-support/ocaml/dune.nix5
1 files changed, 4 insertions, 1 deletions
diff --git a/pkgs/build-support/ocaml/dune.nix b/pkgs/build-support/ocaml/dune.nix
index ce3b389b9cee3..1ad2d236446ab 100644
--- a/pkgs/build-support/ocaml/dune.nix
+++ b/pkgs/build-support/ocaml/dune.nix
@@ -30,7 +30,10 @@ stdenv.mkDerivation ({
   '';
   installPhase = ''
     runHook preInstall
-    dune install --prefix $out --libdir $OCAMLFIND_DESTDIR ${pname}
+    dune install --prefix $out --libdir $OCAMLFIND_DESTDIR ${pname} \
+     ${if lib.versionAtLeast Dune.version "2.9"
+       then "--docdir $out/share/doc"
+       else ""}
     runHook postInstall
   '';