From c5a2c52121e591e4435bbfe0a04f0a257a1f0df7 Mon Sep 17 00:00:00 2001
From: Antonio Nuno Monteiro <anmonteiro@gmail.com>
Date: Sun, 9 Feb 2025 17:32:07 -0800
Subject: [PATCH] v5-51

---
 Changes.md                   | 2 +-
 dune-project                 | 2 +-
 flake.lock                   | 7 ++++---
 flake.nix                    | 4 ++--
 melange.opam                 | 2 +-
 vendor/melange-compiler-libs | 2 +-
 6 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/Changes.md b/Changes.md
index 401b859b4e..d0e4ad1890 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,4 +1,4 @@
-5.0.0-53
+5.0.0-51
 ---------------
 
 - Make the `unprocessed` alert fatal by default
diff --git a/dune-project b/dune-project
index 2885c8dd34..3972f81381 100644
--- a/dune-project
+++ b/dune-project
@@ -34,7 +34,7 @@
  (synopsis "Toolchain to produce JS from Reason/OCaml")
  (depends
   (ocaml
-   (>= "5.3"))
+   (and (>= "5.1") (< "5.2")))
   (cmdliner
    (>= "1.1.0"))
   dune-build-info
diff --git a/flake.lock b/flake.lock
index d2bac5dd62..0da1700e0d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,15 +7,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1736571386,
-        "narHash": "sha256-KW5Ojkxj0hmFwx2xqrNjMzDpyK3UHkUzpgq2/k04ynM=",
+        "lastModified": 1737850214,
+        "narHash": "sha256-QT1TKwopliHFVtOx6OsZfMxUJTbzztwdYfqRBBXis2A=",
         "owner": "melange-re",
         "repo": "melange-compiler-libs",
-        "rev": "8455eecb7dfc24f25db46e55b86803ecb6bd674f",
+        "rev": "e0ff4aba4ff1f5ccf86e973678b8e0d11c79146a",
         "type": "github"
       },
       "original": {
         "owner": "melange-re",
+        "ref": "5.1",
         "repo": "melange-compiler-libs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index e19de32cab..a863696c58 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,7 +6,7 @@
     melange-compiler-libs = {
       # this changes rarely, and it's better than having to rely on nix's poor
       # support for submodules
-      url = "github:melange-re/melange-compiler-libs";
+      url = "github:melange-re/melange-compiler-libs/5.1";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
@@ -16,7 +16,7 @@
       forAllSystems = f: nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (system:
         let
           pkgs = nixpkgs.legacyPackages.${system}.extend (self: super: {
-            ocamlPackages = super.ocaml-ng.ocamlPackages_5_3;
+            ocamlPackages = super.ocaml-ng.ocamlPackages_5_1;
           });
         in
         f pkgs);
diff --git a/melange.opam b/melange.opam
index 65b5e3b6b1..45373762f5 100644
--- a/melange.opam
+++ b/melange.opam
@@ -8,7 +8,7 @@ homepage: "https://github.com/melange-re/melange"
 bug-reports: "https://github.com/melange-re/melange/issues"
 depends: [
   "dune" {>= "3.13"}
-  "ocaml" {>= "5.3"}
+  "ocaml" {>= "5.1" & < "5.2"}
   "cmdliner" {>= "1.1.0"}
   "dune-build-info"
   "cppo" {build}
diff --git a/vendor/melange-compiler-libs b/vendor/melange-compiler-libs
index 8455eecb7d..e0ff4aba4f 160000
--- a/vendor/melange-compiler-libs
+++ b/vendor/melange-compiler-libs
@@ -1 +1 @@
-Subproject commit 8455eecb7dfc24f25db46e55b86803ecb6bd674f
+Subproject commit e0ff4aba4ff1f5ccf86e973678b8e0d11c79146a