Here is the procedure for using the cutbuffer extension. 1. Copy tkCutBuffer.c from exmh/misc directory into tk source directory. 2. add tkCutBuffer.o to WIDGOBJS defintion in tk Makefile. 3. Modify tk.h: 1223a1224,1225 > EXTERN int Tk_CutBufferCmd _ANSI_ARGS_((ClientData clientData, > Tcl_Interp *interp, int argc, char **argv)); 4. Modify tkWindow.c: 107a108 > {"cutbuffer", Tk_CutBufferCmd}, 5. re-make wish, possibly after a 'make clean'.