From 883c9f960cc01385a03d01059067f1f6243b9754 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Tue, 1 Sep 2020 13:21:02 +0300
Subject: [PATCH] mdbx++: don't use obsolete MDBX_MAPASYNC.

Change-Id: I328772a36d14a7593f3b9ee31796fb33d30de7b0
---
 src/mdbx.c++ | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mdbx.c++ b/src/mdbx.c++
index 18d6307c..c1613d70 100644
--- a/src/mdbx.c++
+++ b/src/mdbx.c++
@@ -1061,7 +1061,8 @@ __cold MDBX_env_flags_t env_ref::operate_parameters::make_flags(
       flags |= MDBX_NOMETASYNC;
       break;
     case env_ref::durability::lazy_weak_tail:
-      flags |= (flags & MDBX_WRITEMAP) ? MDBX_MAPASYNC : MDBX_SAFE_NOSYNC;
+      static_assert(MDBX_MAPASYNC == MDBX_SAFE_NOSYNC, "WTF? Obsolete C API?");
+      flags |= MDBX_SAFE_NOSYNC;
       break;
     case env_ref::durability::whole_fragile:
       flags |= MDBX_UTTERLY_NOSYNC;