From b19ebf0c2eb3608999090194ab30b6b997b8aff3 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Wed, 5 Jan 2022 16:00:17 +0300
Subject: [PATCH] mdbx: fix minor `unused parameter` warning.

---
 src/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core.c b/src/core.c
index 9df0efef..f2aa0f1d 100644
--- a/src/core.c
+++ b/src/core.c
@@ -5494,6 +5494,7 @@ static __inline txnid_t meta_txnid(const MDBX_env *env, const MDBX_meta *meta,
   if (allow_volatile)
     return (a == b) ? a : 0;
   mdbx_assert(env, a == b);
+  (void)env;
   return a;
 }