From cb3febfd2ad519b065feffdde1404fd99ad47582 Mon Sep 17 00:00:00 2001
From: Julian Brost <julian.brost@icinga.com>
Date: Wed, 21 Oct 2020 12:49:50 +0200
Subject: [PATCH] Windows: require at least MSVC 19.20 to build

Older versions of MSVC fail to rethrow an unhandled C++ exception (using
`throw;`) in the termination handler (`std::set_terminate`), however
Icinga relies on this behavior in its crash handler
(`Application::ExceptionHandler`).
---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 46e765415..3bb6e0536 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -378,6 +378,12 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
   endif()
 endif()
 
+if(MSVC)
+  if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "19.20")
+    message(FATAL_ERROR "Your version of MSVC (${CMAKE_CXX_COMPILER_VERSION}) is too old for building Icinga 2 (MSVC >= 19.20 from Visual Studio 2019 is required).")
+  endif()
+endif()
+
 if(NOT MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")