From 1c7f1c579e02f0ebd8bf0ce252a68d659840af48 Mon Sep 17 00:00:00 2001
From: MajorP93 <majorp@mailbox.org>
Date: Wed, 4 Dec 2024 13:49:12 +0100
Subject: [PATCH] cmake: Set CMP0069 policy to new for external dependencies *
 This enables LTO also when building external dependencies that do not  
 handle CMP0069 in their CMake scripts.

---
 externals/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index bc2d41bda..28e2fd66f 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -8,6 +8,9 @@ set_directory_properties(PROPERTIES
     SYSTEM ON
 )
 
+# Set CMP0069 policy to "NEW" in order to ensure consistent behavior when building external targets with LTO enabled
+set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
+
 if (MSVC)
     # Silence "deprecation" warnings
     add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS)