引入C++库

cpp/CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 4.1)
+project(cpp)
+
+set(CMAKE_CXX_STANDARD 20)
+
+add_library(cpp STATIC library.cpp)

cpp/library.cpp

@@ -0,0 +1,9 @@
+#include "library.h"
+
+#include <iostream>
+
+extern "C" {
+void hello() {
+    std::cout << "Hello, World!" << std::endl;
+}
+}

cpp/library.h

@@ -0,0 +1,7 @@
+#ifndef CPP_LIBRARY_H
+#define CPP_LIBRARY_H
+
+extern "C" {
+void hello();
+}
+#endif // CPP_LIBRARY_H

cpp/toolchain-mingw32.cmake

@@ -0,0 +1,23 @@
+# 目标系统 - 32位Windows
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR i686)
+
+# 使用32位MinGW编译器
+set(CMAKE_C_COMPILER i686-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER i686-w64-mingw32-windres)
+set(CMAKE_AR i686-w64-mingw32-ar)
+set(CMAKE_RANLIB i686-w64-mingw32-ranlib)
+
+# 调整搜索路径
+set(CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+# 静态链接运行时库，避免需要额外DLL
+set(CMAKE_EXE_LINKER_FLAGS_INIT "-static-libgcc -static-libstdc++ -static")
+
+# 确保是32位
+set(CMAKE_C_FLAGS_INIT "-m32")
+set(CMAKE_CXX_FLAGS_INIT "-m32")