INSTALL Installation directives. ocamltk40-R10x.tar.gz CamlTk for Objective Caml 1.0x. Supports Tcl7.4 / Tk4.0 ocamltk41-R106.tar.gz The Tk GUI toolkit for Objective Caml 1.07 Supports Tcl7.5 / Tk4.1 ocamltk41-R200.tar.gz The Tk GUI toolkit for Objective Caml 2.00 Now also supports Tcl / Tk8.0 ocamltk415.tar.gz The Tk GUI toolkit for Objective Caml 2.99 or later