-BP> "Stephen J. Turnbull" <turnbull(a)sk.tsukuba.ac.jp&gt; writes: -BP> Do you have a list? I wasn't sure when to use -BP> general-slots.h. Anytime you need to `extern Lisp_Object -BP> Qfoo;'? Ask Ben if he has any ideas about guidelines, but I would say this should follow the usual "no prefix means `general' namespace." Eg, unless commented otherwise, all of the following look pretty generic to me, so candidates for general-slots.h. But it really is a matter of style. If you think it's unlikely to be independently defsymbol'ed in another module, keep it in the module it's relevant to. Your guess is better than mine. ;-) void syms_of_event_gtk (void) { defsymbol (&Qkey_mapping, "key-mapping"); /* OK, Emacs lispers will keymap, not key-mapping */ defsymbol (&Qsans_modifiers, "sans-modifiers"); /* fonts might use this */ } void syms_of_gui_gtk (void) { #ifdef HAVE_POPUPS /* probably non-generic? */ defsymbol (&Qmenu_no_selection_hook, "menu-no-selection-hook"); #endif } void syms_of_frame_gtk (void) { /* your plan is that this kind of stuff will be shared, right? if it's abstracted into a separate .c file, put it there. but if the interface is all in .h, these go to general-slots.h */ defsymbol (&Qwindow_id, "window-id"); defsymbol (&Qtext_widget, "text-widget"); defsymbol (&Qcontainer_widget, "container-widget"); defsymbol (&Qshell_widget, "shell-widget"); defsymbol (&Qdetachable_menubar, "detachable-menubar"); /* Non-defsymbols omitted */ } void syms_of_ui_gtk (void) { /* Non-defsymbols omitted */ defsymbol (&Qemacs_ffip, "emacs-ffi-p"); /* OK, these are gtk-specific */ defsymbol (&Qemacs_gtk_objectp, "emacs-gtk-object-p"); defsymbol (&Qemacs_gtk_boxedp, "emacs-gtk-boxed-p"); defsymbol (&Qvoid, "void"); /* ... no way! */ } -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 _________________ _________________ _________________ _________________ What are those straight lines for? "XEmacs rules."