move extern "C"

only JNI functions need to be exported

java/jni/ZT_jniutils.cpp

@@ -30,10 +30,6 @@
 
 extern JniLookup lookup;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 jobject createResultObject(JNIEnv *env, ZT_ResultCode code)
 {
     jclass resultClass = NULL;
@@ -1028,7 +1024,3 @@ jobject newVirtualNetworkDNS(JNIEnv *env, const ZT_VirtualNetworkDNS &dns)
     }
     return NULL;
 }
-
-#ifdef __cplusplus
-}
-#endif

java/jni/ZT_jniutils.h

@@ -22,10 +22,6 @@
 #include <jni.h>
 #include <ZeroTierOne.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #define LOG_TAG "ZeroTierOneJNI"
 
 #if defined(__ANDROID__)
@@ -78,8 +74,4 @@ jobject newVirtualNetworkRoute(JNIEnv *env, const ZT_VirtualNetworkRoute &route)
 
 jobject newVirtualNetworkDNS(JNIEnv *env, const ZT_VirtualNetworkDNS &dns);
 
-#ifdef __cplusplus
-}
 #endif
-
-#endif

java/jni/com_zerotierone_sdk_Node.cpp

@@ -40,10 +40,6 @@
 // global static JNI Lookup Object
 JniLookup lookup;
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 namespace {
     struct JniRef
     {
@@ -732,6 +728,10 @@ namespace {
     }
 }
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 {
     lookup.setJavaVM(vm);