Origin for each line in xvfs-core.c from check-in 69e476dcd5:

69e476dcd5 2019-05-02    1: #include <xvfs-core.h>
69e476dcd5 2019-05-02    2: #include <tcl.h>
69e476dcd5 2019-05-02    3: 
69e476dcd5 2019-05-02    4: int Xvfs_Register(Tcl_Interp *interp, const char *fsName, int protocolVersion, xvfs_proc_getChildren_t getChildrenProc, xvfs_proc_getData_t getData) {
69e476dcd5 2019-05-02    5: 	Tcl_SetResult(interp, "Not implemented", NULL);
69e476dcd5 2019-05-02    6: 	return(TCL_ERROR);
69e476dcd5 2019-05-02    7: }