--- /dev/null
+#ifndef MSP_NET_API_H_
+#define MSP_NET_API_H_
+
+#if defined(_WIN32)
+#if defined(MSPNET_BUILD)
+#define MSPNET_API __declspec(dllexport)
+#elif defined(MSPNET_IMPORT)
+#define MSPNET_API __declspec(dllimport)
+#else
+#define MSPNET_API
+#endif
+#elif defined(__GNUC__)
+#define MSPNET_API __attribute__((visibility("default")))
+#else
+#define MSPNET_API
+#endif
+
+#endif