From 9bde90a401746dcecdab68a2fdb95659d16a3022 Mon Sep 17 00:00:00 2001
From: Juergen Hoetzel <juergen@hoetzel.info>
Date: Sat, 16 Dec 2023 16:04:33 +0100
Subject: [PATCH] Add support for OCaml 5.x

The compatibility macro was removed in OCaml #10863
---
 src/secp256k1_wrap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/secp256k1_wrap.c b/src/secp256k1_wrap.c
index 2601d41..99b36e1 100644
--- a/src/secp256k1_wrap.c
+++ b/src/secp256k1_wrap.c
@@ -27,7 +27,7 @@ static struct custom_operations secp256k1_context_ops = {
 };
 
 static value alloc_context (secp256k1_context *ctx) {
-    value ml_ctx = alloc_custom(&secp256k1_context_ops, sizeof(secp256k1_context *), 0, 1);
+    value ml_ctx = caml_alloc_custom(&secp256k1_context_ops, sizeof(secp256k1_context *), 0, 1);
     Context_val(ml_ctx) = ctx;
     return ml_ctx;
 }