Add build scritps for Windows, macOs and Linux

README.md

@@ -71,7 +71,16 @@ Alternatively, if you already have the project checked out, you can initialize t
 ```git
 git submodule update --init
 ```
+To build the JNI shared library, please follow these steps:
 
+1. Install [JDK](https://docs.aws.amazon.com/corretto/latest/corretto-7-ug/downloads-list.html) and [CMake](https://cmake.org/download/).
+
+2. Set the **JAVA_HOME** system environment variable, and add **CMake** to your **PATH**.  
+    - For Windows users, install [mingw-w64](https://github.com/skeeto/w64devkit) and add its **bin** directory to your **PATH**.
+
+3. Run the build script:  
+    - **Windows:** [build-jni.bat](./build-jni.bat)
+    - **MacOS/Linux:** [build-jni.sh](./build-jni.sh)
 ## Usage
 
 ### Initialization

build-jni.bat

@@ -0,0 +1,32 @@
+@echo off
+setlocal
+
+cd wrapper-java\src\main
+
+set args=
+set build_args=
+
+where ninja >nul 2>nul
+if errorlevel 1 (
+    set args=%args% -G "MinGW Makefiles"
+) else (
+    set args=%args% -G Ninja -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++
+    set build_args=%build_args% -j %NUMBER_OF_PROCESSORS%
+)
+
+if exist build (
+    echo Deleting old build folder...
+    rmdir /s /q build
+)
+
+call :run cmake -B build -S . %args% -DCMAKE_BUILD_TYPE=Release || exit /b 1
+call :run cmake --build build %build_args% || exit /b 1
+call :run copy build\libquickjs-java-wrapper.dll ..\..\.. || exit /b 1
+
+echo Build success
+exit /b
+
+:run
+echo ^> %*
+%*
+exit /b %errorlevel%

build-jni.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+
+run() {
+    echo "> $*"
+    "$@"
+}
+
+cd wrapper-java/src/main
+
+if [ -d build ]; then
+    echo "Deleting old build folder..."
+    rm -rf build
+fi
+
+if command -v ninja >/dev/null 2>&1; then
+    GENERATOR_ARGS="-G Ninja"
+    BUILD_ARGS="-j $(nproc 2>/dev/null || sysctl -n hw.ncpu)"
+else
+    GENERATOR_ARGS=""
+    BUILD_ARGS=""
+fi
+
+run cmake -B build -S . $GENERATOR_ARGS -DCMAKE_BUILD_TYPE=Release
+run cmake --build build $BUILD_ARGS
+
+OS_NAME=$(uname)
+if [[ "$OS_NAME" == "Darwin" ]]; then
+    DYLIB_EXT="dylib"
+else
+    DYLIB_EXT="so"
+fi
+
+run cp "build/libquickjs-java-wrapper.$DYLIB_EXT" ../../..
+
+echo "Build success"

native/cpp/quickjs_wrapper.cpp

@@ -129,7 +129,10 @@ static void jsFuncCallbackFinalizer(JSRuntime *rt, JSValue val) {
 
 static JSClassDef js_func_callback_class = {
         "JSFuncCallback",
-        .finalizer = jsFuncCallbackFinalizer,
+        jsFuncCallbackFinalizer,
+        nullptr,
+        nullptr,
+        nullptr
 };
 
 static JSValue jsFnCallback(JSContext *ctx,

wrapper-java/src/main/CMakeLists.txt

@@ -16,5 +16,6 @@ add_library( # Sets the name of the library.
 
 
 include_directories($ENV{JAVA_HOME}/include/)
+include_directories($ENV{JAVA_HOME}/include/win32)
 include_directories($ENV{JAVA_HOME}/include/darwin)
 include_directories($ENV{JAVA_HOME}/include/linux)