Support onnxruntime 1.16.0 (#330)

sherpa-onnx/c-api/c-api.h

@@ -31,9 +31,18 @@ extern "C" {
 #define SHERPA_ONNX_IMPORT
 #endif
 #else  // WIN32
-#define SHERPA_ONNX_EXPORT __attribute__((visibility("default"))) 
+#if __APPLE__
+// it throws a warning on macOS when using
+// __attribute__((visibility("default")))
+//
+// warning: 'visibility' attribute ignored [-Wignored-attributes]
+#define SHERPA_ONNX_EXPORT
+#else
+#define SHERPA_ONNX_EXPORT __attribute__((visibility("default")))
+#endif  // __APPLE__
+
 #define SHERPA_ONNX_IMPORT SHERPA_ONNX_EXPORT
-#endif
+#endif  // WIN32
 
 #if defined(SHERPA_ONNX_BUILD_MAIN_LIB)
 #define SHERPA_ONNX_API SHERPA_ONNX_EXPORT
@@ -178,12 +187,14 @@ SHERPA_ONNX_API void DestroyOnlineRecognizer(
 SHERPA_ONNX_API SherpaOnnxOnlineStream *CreateOnlineStream(
     const SherpaOnnxOnlineRecognizer *recognizer);
 
-/// Create an online stream for accepting wave samples with the specified hot words.
+/// Create an online stream for accepting wave samples with the specified hot
+/// words.
 ///
 /// @param recognizer  A pointer returned by CreateOnlineRecognizer()
 /// @return Return a pointer to an OnlineStream. The user has to invoke
 ///         DestroyOnlineStream() to free it to avoid memory leak.
-SHERPA_ONNX_API SherpaOnnxOnlineStream *CreateOnlineStreamWithHotwords(const SherpaOnnxOnlineRecognizer *recognizer, const char *hotwords);
+SHERPA_ONNX_API SherpaOnnxOnlineStream *CreateOnlineStreamWithHotwords(
+    const SherpaOnnxOnlineRecognizer *recognizer, const char *hotwords);
 
 /// Destroy an online stream.
 ///