fix extern "C" usage

include/enet/callbacks.h

@@ -14,14 +14,24 @@ typedef struct _ENetCallbacks
     void (ENET_CALLBACK * no_memory) (void);
 } ENetCallbacks;
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 /** @defgroup callbacks ENet internal callbacks
     @{
     @ingroup private
 */
+
 extern void * enet_malloc (size_t);
 extern void   enet_free (void *);
 
 /** @} */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __ENET_CALLBACKS_H__ */
 

include/enet/enet.h

@@ -5,11 +5,6 @@
 #ifndef __ENET_ENET_H__
 #define __ENET_ENET_H__
 
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
 #include <stdlib.h>
 
 #ifdef _WIN32
@@ -446,6 +441,11 @@ typedef struct _ENetEvent
    ENetPacket *         packet;    /**< packet associated with the event, if appropriate */
 } ENetEvent;
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 /** @defgroup global ENet global functions
     @{ 
 */

include/enet/list.h

@@ -20,6 +20,11 @@ typedef struct _ENetList
    ENetListNode sentinel;
 } ENetList;
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 extern void enet_list_clear (ENetList *);
 
 extern ENetListIterator enet_list_insert (ENetListIterator, void *);
@@ -28,6 +33,10 @@ extern ENetListIterator enet_list_move (ENetListIterator, void *, void *);
 
 extern size_t enet_list_size (ENetList *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #define enet_list_begin(list) ((list) -> sentinel.next)
 #define enet_list_end(list) (& (list) -> sentinel)