From 31942b9d1f801b89d064c46013f83baa05dc8e1a Mon Sep 17 00:00:00 2001
From: Vaclav Haisman <vhaisman@gmail.com>
Date: Sat, 6 Jul 2024 19:52:46 +0200
Subject: [PATCH] Adding /Zc:hiddenFriend- compiler flag to workaround Catch2
 complation issue with Visual Studio 2019.

---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c0bb1d1b..b6cc41e68 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,6 +120,10 @@ if (WITH_UNIT_TESTS)
   if (WIN32)
     add_compile_definitions (LOG4CPLUS_WITH_UNIT_TESTS=1
       NOMINMAX=1)
+    if (MSVC AND MSVC_TOOLSET_VERSION VERSION_LESS "143")
+      message (WARNING "Adding /Zc:hiddenFriend- compiler flag to workaround Catch2 complation issue with Visual Studio 2019")
+      add_compile_options (/Zc:hiddenFriend-)
+    endif ()
   endif (WIN32)
 endif (WITH_UNIT_TESTS)