diff --git a/.github/include/windows/jni_md.h b/.github/include/windows/jni_md.h
index 6c8d6b9e..934ffb18 100644
--- a/.github/include/windows/jni_md.h
+++ b/.github/include/windows/jni_md.h
@@ -26,13 +26,26 @@
 #ifndef _JAVASOFT_JNI_MD_H_
 #define _JAVASOFT_JNI_MD_H_
 
-#define JNIEXPORT __declspec(dllexport)
-#define JNIIMPORT __declspec(dllimport)
-#define JNICALL __stdcall
+#ifdef _MSC_VER
+  // Windows + MSVC 编译器
+  #define JNIEXPORT __declspec(dllexport)
+  #define JNIIMPORT __declspec(dllimport)
+  #define JNICALL __stdcall
+#else
+  // 其他平台或非 MSVC 编译器
+  #define JNIEXPORT
+  #define JNIIMPORT
+  #define JNICALL
+#endif
 
 // 'long' is always 32 bit on windows so this matches what jdk expects
 typedef long jint;
-typedef __int64 jlong;
+#ifdef PLATFORM_WINDOWS
+  typedef __int64 jlong;
+#else
+  #include <stdint.h>
+  typedef int64_t jlong;
+#endif
 typedef signed char jbyte;
 
 #endif /* !_JAVASOFT_JNI_MD_H_ */
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 96c62950..bc901bd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -119,3 +119,9 @@ if (LLAMA_METAL AND NOT LLAMA_METAL_EMBED_LIBRARY)
     # copy ggml-common.h and ggml-metal.metal to bin directory
     configure_file(${llama.cpp_SOURCE_DIR}/ggml-metal.metal ${JLLAMA_DIR}/ggml-metal.metal COPYONLY)
 endif()
+
+if (MSVC)
+    add_definitions(-DPLATFORM_WINDOWS)
+else()
+    add_definitions(-DPLATFORM_UNIX)
+endif()
\ No newline at end of file
diff --git a/src/main/cpp/jllama.cpp b/src/main/cpp/jllama.cpp
index 11c80ae0..78165c46 100644
--- a/src/main/cpp/jllama.cpp
+++ b/src/main/cpp/jllama.cpp
@@ -813,7 +813,7 @@ JNIEXPORT void JNICALL Java_de_kherud_llama_LlamaModel_delete(JNIEnv *env, jobje
 JNIEXPORT void JNICALL Java_de_kherud_llama_LlamaModel_cancelCompletion(JNIEnv *env, jobject obj, jint id_task) {
     jlong server_handle = env->GetLongField(obj, f_model_pointer);
     auto *ctx_server = reinterpret_cast<server_context *>(server_handle); // NOLINT(*-no-int-to-ptr)
-    std::unordered_set<int> id_tasks = {id_task};
+    std::unordered_set<int> id_tasks = {static_cast<int>(id_task)};
     ctx_server->cancel_tasks(id_tasks);
     ctx_server->queue_results.remove_waiting_task_id(id_task);
 }