Index: xvfs-core.h
==================================================================
--- xvfs-core.h
+++ xvfs-core.h
@@ -2,10 +2,14 @@
 #define XVFS_CORE_H_1B4B28D60EBAA11D5FF85642FA7CA22C29E8E817 1
 
 #include <tcl.h>
 
 #define XVFS_PROTOCOL_VERSION 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 typedef const char **(*xvfs_proc_getChildren_t)(const char *path, Tcl_WideInt *count);
 typedef const unsigned char *(*xvfs_proc_getData_t)(const char *path, Tcl_WideInt start, Tcl_WideInt *length);
 typedef int (*xvfs_proc_getStat_t)(const char *path, Tcl_StatBuf *statBuf);
 
@@ -85,5 +89,9 @@
 #if defined(XVFS_MODE_FLEXIBLE) || defined(XVFS_MODE_STANDALONE)
 #include <xvfs-core.c>
 #endif
 
 #endif
+
+#ifdef __cplusplus
+}
+#endif