From 3db8656e35cbaee20d75556fde4b925016dcc494 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 7 Jan 2026 06:55:50 +0100
Subject: [PATCH 1/3] ocamlPackages.landmarks-ppx: disable tests for OCaml <
 5.1

---
 pkgs/development/ocaml-modules/landmarks-ppx/default.nix | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pkgs/development/ocaml-modules/landmarks-ppx/default.nix b/pkgs/development/ocaml-modules/landmarks-ppx/default.nix
index 724d8c10c73e..4d70169e2c4f 100644
--- a/pkgs/development/ocaml-modules/landmarks-ppx/default.nix
+++ b/pkgs/development/ocaml-modules/landmarks-ppx/default.nix
@@ -8,14 +8,13 @@
 
 buildDunePackage {
   pname = "landmarks-ppx";
-  minimalOCamlVersion = "4.08";
 
   inherit (landmarks) src version;
 
   buildInputs = [ ppxlib ];
   propagatedBuildInputs = [ landmarks ];
 
-  doCheck = lib.versionAtLeast ocaml.version "4.08" && lib.versionOlder ocaml.version "5.0";
+  doCheck = lib.versionAtLeast ocaml.version "5.1";
 
   meta = landmarks.meta // {
     description = "Preprocessor instrumenting code using the landmarks library";

From 1a440e3d533ff767b13e62d504630f1eca4fceec Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 7 Jan 2026 06:55:55 +0100
Subject: [PATCH 2/3] ocaml-ng.ocamlPackages_4_13.ocaml-lsp: mark as broken

---
 pkgs/development/ocaml-modules/ocaml-lsp/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/ocaml-modules/ocaml-lsp/default.nix b/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
index fe4d5e5fa1aa..83ca1daffd9e 100644
--- a/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
+++ b/pkgs/development/ocaml-modules/ocaml-lsp/default.nix
@@ -85,5 +85,6 @@ buildDunePackage rec {
   meta = lsp.meta // {
     description = "OCaml Language Server Protocol implementation";
     mainProgram = "ocamllsp";
+    broken = lib.versions.majorMinor ocaml.version == "4.13";
   };
 }

From 0822fae62129767a79f238b293e06dce5e0e735c Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 7 Jan 2026 06:56:00 +0100
Subject: [PATCH 3/3] =?UTF-8?q?ocamlPackages.ppxlib:=200.33.0=20=E2=86=92?=
 =?UTF-8?q?=200.34.0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 pkgs/by-name/fl/flow/package.nix                  | 2 +-
 pkgs/development/ocaml-modules/ppxlib/default.nix | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/fl/flow/package.nix b/pkgs/by-name/fl/flow/package.nix
index 2ba10797e23c..281a2fb80862 100644
--- a/pkgs/by-name/fl/flow/package.nix
+++ b/pkgs/by-name/fl/flow/package.nix
@@ -10,7 +10,7 @@
 let
   ocamlPackages = ocaml-ng.ocamlPackages.overrideScope (
     self: super: {
-      ppxlib = super.ppxlib.override { version = "0.33.0"; };
+      ppxlib = super.ppxlib.override { version = "0.34.0"; };
     }
   );
 in
diff --git a/pkgs/development/ocaml-modules/ppxlib/default.nix b/pkgs/development/ocaml-modules/ppxlib/default.nix
index 76aabf9f8194..0d5d2dfb7c15 100644
--- a/pkgs/development/ocaml-modules/ppxlib/default.nix
+++ b/pkgs/development/ocaml-modules/ppxlib/default.nix
@@ -11,7 +11,7 @@
           if lib.versionAtLeast ocaml.version "5.03" then
             if lib.versionAtLeast ocaml.version "5.04" then "0.37.0" else "0.36.2"
           else
-            "0.33.0"
+            "0.34.0"
         else
           "0.24.0"
       else
@@ -91,6 +91,9 @@ let
         sha256 = "sha256-/6RO9VHyO3XiHb1pijAxBDE4Gq8UC5/kuBwucKLSxjo=";
         min_version = "4.07";
       };
+      "0.34.0" = {
+        sha256 = "sha256-132XFloVjXrla3wDh80E6ZJ9fn55fKEDn/tbsXpmYac=";
+      };
       "0.36.2" = {
         sha256 = "sha256-yHVgB9jKwTeahGEUYQDB1hHH327MGpoKqb3ewNbk5xs=";
         min_version = "4.08";