From: Huang Rui <vowstar@gmail.com>
Date: Tue, 10 Dec 2025 00:00:00 +0000
Subject: [PATCH] i#1558: Use new behavior of CMP0043 in drgui

Old CMP0043 policy instructs CMake to respect
COMPILE_DEFINITIONS_<CONFIG> target properties and apply the specified
definitions when building in <CONFIG> mode.

The policy is completely removed in CMake 4.x, causing build failure.
Switch to the new behavior.

--- a/dynamorio/ext/drgui/CMakeLists.txt
+++ b/dynamorio/ext/drgui/CMakeLists.txt
@@ -51,8 +51,6 @@ else () # Qt5 and CMake 3.2+
 
   include(../../make/policies.cmake NO_POLICY_SCOPE)
 
-  cmake_policy(SET CMP0043 OLD)
-
   # Set ouput_dir since drgui_qt is the only executable extension
   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/ext/${INSTALL_BIN}")