From 43f3deee001706261221cbe976d14339c0794908 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9B=D0=B5=D0=BE=D0=BD=D0=B8=D0=B4=20=D0=AE=D1=80=D1=8C?=
 =?UTF-8?q?=D0=B5=D0=B2=20=28Leonid=20Yuriev=29?= <leo@yuriev.ru>
Date: Sun, 20 Jul 2025 14:47:06 +0300
Subject: [PATCH] =?UTF-8?q?mdbx:=20=D1=83=D1=81=D0=BB=D0=BE=D0=B2=D0=BD?=
 =?UTF-8?q?=D0=BE=D0=B5=20=D0=BE=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B8=D0=B5=20`MDBX=5FENOSYS`=20=D0=BA=D0=B0=D0=BA=20`EN?=
 =?UTF-8?q?OTSUP`/`ENOSYS`.?=
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---
 mdbx.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mdbx.h b/mdbx.h
index 01b2e3b0..8eafdbb9 100644
--- a/mdbx.h
+++ b/mdbx.h
@@ -1997,7 +1997,7 @@ typedef enum MDBX_error {
   MDBX_EREMOTE = ERROR_REMOTE_STORAGE_MEDIA_ERROR,
   MDBX_EDEADLK = ERROR_POSSIBLE_DEADLOCK
 #else /* Windows */
-#ifdef ENODATA
+#if defined(ENODATA) || defined(DOXYGEN)
   MDBX_ENODATA = ENODATA,
 #else
   MDBX_ENODATA = 9919 /* for compatibility with LLVM's C++ libraries/headers */,
@@ -2006,7 +2006,11 @@ typedef enum MDBX_error {
   MDBX_EACCESS = EACCES,
   MDBX_ENOMEM = ENOMEM,
   MDBX_EROFS = EROFS,
+#if defined(ENOTSUP) || defined(DOXYGEN)
+  MDBX_ENOSYS = ENOTSUP,
+#else
   MDBX_ENOSYS = ENOSYS,
+#endif /* ENOTSUP */
   MDBX_EIO = EIO,
   MDBX_EPERM = EPERM,
   MDBX_EINTR = EINTR,