From 51d66494fd277dd9acd138cbfb535c4875958efd 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: Wed, 20 Apr 2022 13:12:43 +0300
Subject: [PATCH] mdbx-cmake: add `-Wno-lto-type-mismatch` to avoid
 false-positive warnings from GCC < 9.x

---
 cmake/compiler.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmake/compiler.cmake b/cmake/compiler.cmake
index ee487840..ddc113ce 100644
--- a/cmake/compiler.cmake
+++ b/cmake/compiler.cmake
@@ -609,6 +609,9 @@ macro(setup_compile_flags)
       AND CMAKE_${CMAKE_PRIMARY_LANG}_COMPILER_VERSION VERSION_LESS 9)
     # GCC < 9.x generates false-positive warnings for optimization attributes
     add_compile_flags("C;CXX" "-Wno-attributes")
+    if(LTO_ENABLED)
+      add_compile_flags("C;CXX" "-Wno-lto-type-mismatch")
+    endif()
   endif()
 
   # In C a global variable without a storage specifier (static/extern) and