From b0bb2c9c4247ae92fd4c15d220c1d9b40dbfab6e Mon Sep 17 00:00:00 2001
From: Hirek193 <polomarket73@gmail.com>
Date: Sat, 27 Jun 2026 15:15:11 +0200
Subject: [PATCH] Fix autodetect python directory

---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 99b9eb65..28f40a43 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -478,6 +478,12 @@ if(WITH_PYTHON)
 	target_link_libraries(${PROJECT_NAME} ${Python3_LIBRARIES})
 
 	if(WIN32)
+		# Python3_ROOT_DIR is only an input hint and is not populated by
+		# find_package(... COMPONENTS Development). Derive the install root from
+		# the include dir (parent of <root>/include) when it was not provided.
+		if(NOT Python3_ROOT_DIR)
+			get_filename_component(Python3_ROOT_DIR "${Python3_INCLUDE_DIRS}" DIRECTORY)
+		endif()
 		set(EU07_PY_DLL "${Python3_ROOT_DIR}/python314.dll")
 		set(EU07_PY_ZLIB "${Python3_ROOT_DIR}/DLLs/zlib1.dll")
 		set(EU07_PY_LIBDIR "${Python3_ROOT_DIR}/Lib")