FYI, gdbtk-cmds.c:1600: warning: implicit declaration of function `Tk_NameToWindow' gdbtk-cmds.c:1601: warning: implicit declaration of function `Tk_MainWindow' gdbtk-hooks.c:392: warning: implicit declaration of function `Tk_MainLoop' when building configured with --enable-gdb-build-warnings=,-Werror (which, for GDB, is pretty much the norm). enjoy, Andrew