From 28c61c904a74db5181a8cc1f3a81fad544d7eab7 Mon Sep 17 00:00:00 2001
From: Yonas Habteab <yonas.habteab@icinga.com>
Date: Thu, 3 Apr 2025 16:43:31 +0200
Subject: [PATCH] Fix CMake doesn't export symbols of executables anymore

CMake 3.4 introduced a new policy [^1] which prevents from automatically
adding the compiler flags needed for exporting the symbols of the
executables and libraries without the `ENABLE_EXPORTS` property. So, by
defining this variable, CMake will restore the previous behaviour by
automatically adding the `ENABLE_EXPORTS` properties to all targets.

[1]: https://cmake.org/cmake/help/latest/policy/CMP0065.html
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b65845972..023131554 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,10 @@ if(NOT CMAKE_BUILD_TYPE)
     FORCE)
 endif()
 
+# Include symbols in executables so that function names can be printed in stack traces, for example in crash dumps.
+set(CMAKE_ENABLE_EXPORTS ON) # Added in CMake 3.4
+set(CMAKE_EXECUTABLE_ENABLE_EXPORTS ON) # Added in CMake 3.27 and supersedes the above one.
+
 if(WIN32)
   set(ICINGA2_MASTER OFF)
 else()