From 16b9a8e7b1f23f48296c96cdcfa5a595ebed3d60 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Sun, 28 Sep 2025 21:48:41 +0100
Subject: [PATCH] Fix libpng on CMake 4.0

---
 3rdParty/libpng/CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/3rdParty/libpng/CMakeLists.txt b/3rdParty/libpng/CMakeLists.txt
index b0d291f92..30de253c0 100644
--- a/3rdParty/libpng/CMakeLists.txt
+++ b/3rdParty/libpng/CMakeLists.txt
@@ -1,5 +1,10 @@
 include(functions/FetchContent_MakeAvailableExcludeFromAll)
 
+if(CMAKE_VERSION VERSION_GREATER_EQUAL "4.0")
+  # Workaround for removal of CMake 3.5 compatibility in CMake 4.0+.
+  set(CMAKE_POLICY_VERSION_MINIMUM 3.22)
+endif()
+
 if(NOT DISABLE_LTO)
   # Force CMake to raise an error if INTERPROCEDURAL_OPTIMIZATION
   # is enabled and compiler does not support IPO