1 files changed, 18 insertions, 5 deletions
diff --git a/infra/libkookie/nixpkgs/pkgs/development/ocaml-modules/astring/default.nix b/infra/libkookie/nixpkgs/pkgs/development/ocaml-modules/astring/default.nix
index b63601608919..f790a87e22c5 100644
--- a/infra/libkookie/nixpkgs/pkgs/development/ocaml-modules/astring/default.nix
+++ b/infra/libkookie/nixpkgs/pkgs/development/ocaml-modules/astring/default.nix
@@ -1,12 +1,25 @@
 { stdenv, fetchurl, ocaml, findlib, ocamlbuild, topkg }:
 
-stdenv.mkDerivation rec {
-  version = "0.8.3";
-  name = "ocaml${ocaml.version}-astring-${version}";
+let
+  # Use astring 0.8.3 for OCaml < 4.05
+  param =
+    if stdenv.lib.versionAtLeast ocaml.version "4.05"
+    then {
+      version = "0.8.5";
+      sha256 = "1ykhg9gd3iy7zsgyiy2p9b1wkpqg9irw5pvcqs3sphq71iir4ml6";
+    } else {
+      version = "0.8.3";
+      sha256 = "0ixjwc3plrljvj24za3l9gy0w30lsbggp8yh02lwrzw61ls4cri0";
+    };
+in
+
+stdenv.mkDerivation {
+  name = "ocaml${ocaml.version}-astring-${param.version}";
+  inherit (param) version;
 
   src = fetchurl {
-    url = "https://erratique.ch/software/astring/releases/astring-${version}.tbz";
-    sha256 = "0ixjwc3plrljvj24za3l9gy0w30lsbggp8yh02lwrzw61ls4cri0";
+    url = "https://erratique.ch/software/astring/releases/astring-${param.version}.tbz";
+    inherit (param) sha256;
   };
 
   buildInputs = [ ocaml findlib ocamlbuild topkg ];