From eb69484bd6436992fd745e4c9dc5bc940cc6f91b Mon Sep 17 00:00:00 2001
From: Yang Liu <liuyang22@iscas.ac.cn>
Date: Sun, 1 Jun 2025 17:35:16 +0800
Subject: [WOW64] Override DOS stub to Wine builtin DLL (#2698)

---
 wow64/CMakeLists.txt           | 21 +++++++++++++++++++++
 wow64/override_wine_builtin.py | 14 ++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100755 wow64/override_wine_builtin.py

diff --git a/wow64/CMakeLists.txt b/wow64/CMakeLists.txt
index 6221e75d..13d7947c 100644
--- a/wow64/CMakeLists.txt
+++ b/wow64/CMakeLists.txt
@@ -1,6 +1,22 @@
 cmake_minimum_required(VERSION 3.13)
 project(wowbox64 C ASM)
 
+if(${CMAKE_VERSION} VERSION_LESS "3.12.2")
+    find_package(PythonInterp 3)
+    if(NOT PYTHONINTERP_FOUND)
+        message( FATAL_ERROR "You need a Python interpreter, CMake will exit." )
+    endif()
+    if(${PYTHON_VERSION_MAJOR} LESS 3)
+        message( FATAL_ERROR "You need a Python 3 interpreter, CMake will exit." )
+    endif()
+else()
+    find_package(Python3)
+    if(NOT Python3_Interpreter_FOUND)
+        message( FATAL_ERROR "You need a Python interpreter, CMake will exit." )
+    endif()
+    set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE} CACHE INTERNAL "The Python3 executable" FORCE)
+endif()
+
 set(BOX64_ROOT "${CMAKE_SOURCE_DIR}/..")
 
 string(REPLACE "," ";" DYNAREC_ASM "${DYNAREC_ASM_STR}")
@@ -122,4 +138,9 @@ add_compile_definitions(DYNAREC ARM64)
 
 target_link_options(wowbox64 PRIVATE -nostdlib -nodefaultlibs -lclang_rt.builtins-aarch64 -Wl,--image-base,0x004c0000)
 
+add_custom_command(
+    TARGET wowbox64 POST_BUILD
+    COMMAND "${PYTHON_EXECUTABLE}" ${CMAKE_SOURCE_DIR}/override_wine_builtin.py $<TARGET_FILE:wowbox64>
+)
+
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
diff --git a/wow64/override_wine_builtin.py b/wow64/override_wine_builtin.py
new file mode 100755
index 00000000..ee95e958
--- /dev/null
+++ b/wow64/override_wine_builtin.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+
+import subprocess
+import sys
+
+data = 'Wine builtin DLL\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+
+def main(output_file):
+
+    with open(output_file, 'r+b') as f:
+        f.seek(64)  # Move cursor to DOS stub
+        f.write(data.encode('utf-8'))
+
+main(sys.argv[1])
\ No newline at end of file
-- 
cgit 1.4.1