From 089d7212e779c4e27f5bc9eaeda3a6e6eee0f97f Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Sat, 4 Apr 2020 15:37:38 +0300
Subject: [PATCH] mdbx: fix mdbx_build_info for undefined flags case.

1 of 2 for https://github.com/erthink/libmdbx/issues/88

Change-Id: I079b329abe8f20793dc78c90ea55f874693dde43
---
 src/elements/core.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/elements/core.c b/src/elements/core.c
index 05a87d86..ac3b0d74 100644
--- a/src/elements/core.c
+++ b/src/elements/core.c
@@ -18267,12 +18267,16 @@ __dll_export
   #endif
 #endif /* MDBX_BUILD_COMPILER */
     ,
-#ifdef MDBX_BUILD_FLAGS
-    MDBX_BUILD_FLAGS
-#endif /* MDBX_BUILD_FLAGS */
 #ifdef MDBX_BUILD_FLAGS_CONFIG
     MDBX_BUILD_FLAGS_CONFIG
 #endif /* MDBX_BUILD_FLAGS_CONFIG */
+#ifdef MDBX_BUILD_FLAGS
+    MDBX_BUILD_FLAGS
+#endif /* MDBX_BUILD_FLAGS */
+#if !(defined(MDBX_BUILD_FLAGS_CONFIG) || defined(MDBX_BUILD_FLAGS))
+    "undefined (please use correct build script)"
+#warning "Build flags undefined. Please use correct build script"
+#endif
 };
 
 #ifdef __SANITIZE_ADDRESS__