Convert function definitions to standard C.

* src/xterm.c (x_frame_of_widget, x_alloc_nearest_color_for_widget)
(x_alloc_lighter_color_for_widget, cvt_string_to_pixel)
(cvt_pixel_dtor, x_window_to_menu_bar, xt_action_hook)
(xaw_jump_callback, xaw_scroll_callback)
(x_create_toolkit_scroll_bar, x_set_toolkit_scroll_bar_thumb)
(x_wm_set_size_hint, x_activate_timeout_atimer): Convert
definitions to standard C.
* src/xmenu.c (menubar_id_to_frame, popup_get_selection)
(popup_activate_callback, popup_deactivate_callback)
(menu_highlight_callback, menubar_selection_callback)
(apply_systemfont_to_dialog, apply_systemfont_to_menu)
(free_frame_menubar, popup_selection_callback, as)
(create_and_show_popup_menu, dialog_selection_callback)
(create_and_show_dialog):
* src/xfns.c (hack_wm_protocols, x_window):
* src/xfaces.c (x_update_menu_appearance):
* src/widget.c (get_default_char_pixel_size, pixel_to_char_size)
(char_to_pixel_size, round_size_to_char, get_wm_shell)
(set_frame_size, update_wm_hints, setup_frame_gcs)
(update_various_frame_slots, update_from_various_frame_slots)
(EmacsFrameInitialize, EmacsFrameRealize, EmacsFrameResize)
(EmacsFrameSetValues, EmacsFrameQueryGeometry)
(EmacsFrameSetCharSize, widget_store_internal_border): Likewise.

6 files changed, 87 insertions, 182 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 7a662c29acf..a27fc7484f7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,29 @@
+2010-07-12  Dan Nicolaescu  <dann@ics.uci.edu>
+
+        * xterm.c (x_frame_of_widget, x_alloc_nearest_color_for_widget)
+        (x_alloc_lighter_color_for_widget, cvt_string_to_pixel)
+        (cvt_pixel_dtor, x_window_to_menu_bar, xt_action_hook)
+        (xaw_jump_callback, xaw_scroll_callback)
+        (x_create_toolkit_scroll_bar, x_set_toolkit_scroll_bar_thumb)
+        (x_wm_set_size_hint, x_activate_timeout_atimer): Convert
+        definitions to standard C.
+        * xmenu.c (menubar_id_to_frame, popup_get_selection)
+        (popup_activate_callback, popup_deactivate_callback)
+        (menu_highlight_callback, menubar_selection_callback)
+        (apply_systemfont_to_dialog, apply_systemfont_to_menu)
+        (free_frame_menubar, popup_selection_callback, as)
+        (create_and_show_popup_menu, dialog_selection_callback)
+        (create_and_show_dialog):
+        * xfns.c (hack_wm_protocols, x_window):
+        * xfaces.c (x_update_menu_appearance):
+        * widget.c (get_default_char_pixel_size, pixel_to_char_size)
+        (char_to_pixel_size, round_size_to_char, get_wm_shell)
+        (set_frame_size, update_wm_hints, setup_frame_gcs)
+        (update_various_frame_slots, update_from_various_frame_slots)
+        (EmacsFrameInitialize, EmacsFrameRealize, EmacsFrameResize)
+        (EmacsFrameSetValues, EmacsFrameQueryGeometry)
+        (EmacsFrameSetCharSize, widget_store_internal_border): Likewise.
+
 2010-07-12  Andreas Schwab  <schwab@linux-m68k.org>
 
         * dbusbind.c (xd_initialize): Don't compare boolean with a
diff --git a/src/widget.c b/src/widget.c
index 0c3aa64a74e..2301f76c7c9 100644
--- a/src/widget.c
+++ b/src/widget.c
@@ -76,14 +76,12 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define DEFAULT_FACE_FONT "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*"
 
 
-static void EmacsFrameInitialize (/*Widget, Widget, ArgList, Cardinal * */);
-static void EmacsFrameDestroy (/* Widget */);
-static void EmacsFrameRealize (/* Widget, XtValueMask*, XSetWindowAttributes* */);
-void EmacsFrameResize (/* Widget widget */);
-static Boolean EmacsFrameSetValues (/* Widget, Widget, Widget,
-                                     ArgList, Cardinal * */);
-static XtGeometryResult EmacsFrameQueryGeometry (/* Widget, XtWidgetGeometry*,
-                                                  XtWidgetGeometry* */);
+static void EmacsFrameInitialize (Widget request, Widget new, ArgList dum1, Cardinal *dum2);
+static void EmacsFrameDestroy (Widget widget);
+static void EmacsFrameRealize (Widget widget, XtValueMask *mask, XSetWindowAttributes *attrs);
+void EmacsFrameResize (Widget widget);
+static Boolean EmacsFrameSetValues (Widget cur_widget, Widget req_widget, Widget new_widget, ArgList dum1, Cardinal *dum2);
+static XtGeometryResult EmacsFrameQueryGeometry (Widget widget, XtWidgetGeometry *request, XtWidgetGeometry *result);
 
 
 #undef XtOffset
@@ -180,10 +178,7 @@ EmacsFrameClassRec emacsFrameClassRec = {
 WidgetClass emacsFrameClass = (WidgetClass) &emacsFrameClassRec;
 
 static void
-get_default_char_pixel_size (ew, pixel_width, pixel_height)
-     EmacsFrame ew;
-     int* pixel_width;
-     int* pixel_height;
+get_default_char_pixel_size (EmacsFrame ew, int *pixel_width, int *pixel_height)
 {
   struct frame* f = ew->emacs_frame.frame;
   *pixel_width = FRAME_COLUMN_WIDTH (f);
@@ -191,12 +186,7 @@ get_default_char_pixel_size (ew, pixel_width, pixel_height)
 }
 
 static void
-pixel_to_char_size (ew, pixel_width, pixel_height, char_width, char_height)
-     EmacsFrame ew;
-     Dimension pixel_width;
-     Dimension pixel_height;
-     int* char_width;
-     int* char_height;
+pixel_to_char_size (EmacsFrame ew, Dimension pixel_width, Dimension pixel_height, int *char_width, int *char_height)
 {
   struct frame* f = ew->emacs_frame.frame;
   *char_width = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, (int) pixel_width);
@@ -204,12 +194,7 @@ pixel_to_char_size (ew, pixel_width, pixel_height, char_width, char_height)
 }
 
 static void
-char_to_pixel_size (ew, char_width, char_height, pixel_width, pixel_height)
-     EmacsFrame ew;
-     int char_width;
-     int char_height;
-     Dimension* pixel_width;
-     Dimension* pixel_height;
+char_to_pixel_size (EmacsFrame ew, int char_width, int char_height, Dimension *pixel_width, Dimension *pixel_height)
 {
   struct frame* f = ew->emacs_frame.frame;
   *pixel_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, char_width);
@@ -217,12 +202,7 @@ char_to_pixel_size (ew, char_width, char_height, pixel_width, pixel_height)
 }
 
 static void
-round_size_to_char (ew, in_width, in_height, out_width, out_height)
-     EmacsFrame ew;
-     Dimension in_width;
-     Dimension in_height;
-     Dimension* out_width;
-     Dimension* out_height;
+round_size_to_char (EmacsFrame ew, Dimension in_width, Dimension in_height, Dimension *out_width, Dimension *out_height)
 {
   int char_width;
   int char_height;
@@ -231,8 +211,7 @@ round_size_to_char (ew, in_width, in_height, out_width, out_height)
 }
 
 static Widget
-get_wm_shell (w)
-     Widget w;
+get_wm_shell (Widget w)
 {
   Widget wmshell;
 
@@ -269,8 +248,7 @@ static Boolean first_frame_p = True;
 #endif
 
 static void
-set_frame_size (ew)
-     EmacsFrame ew;
+set_frame_size (EmacsFrame ew)
 {
   /* The widget hierarchy is
 
@@ -491,8 +469,7 @@ set_frame_size (ew)
 int update_hints_inhibit;
 
 static void
-update_wm_hints (ew)
-     EmacsFrame ew;
+update_wm_hints (EmacsFrame ew)
 {
   Widget wmshell = get_wm_shell ((Widget)ew);
   int cw;
@@ -570,8 +547,7 @@ static char setup_frame_cursor_bits[] =
 };
 
 static void
-setup_frame_gcs (ew)
-     EmacsFrame ew;
+setup_frame_gcs (EmacsFrame ew)
 {
   XGCValues gc_values;
   struct frame* s = ew->emacs_frame.frame;
@@ -649,8 +625,7 @@ setup_frame_gcs (ew)
 }
 
 static void
-update_various_frame_slots (ew)
-     EmacsFrame ew;
+update_various_frame_slots (EmacsFrame ew)
 {
   struct frame *f = ew->emacs_frame.frame;
   struct x_output *x = f->output_data.x;
@@ -661,8 +636,7 @@ update_various_frame_slots (ew)
 }
 
 static void
-update_from_various_frame_slots (ew)
-     EmacsFrame ew;
+update_from_various_frame_slots (EmacsFrame ew)
 {
   struct frame *f = ew->emacs_frame.frame;
   struct x_output *x = f->output_data.x;
@@ -677,11 +651,7 @@ update_from_various_frame_slots (ew)
 }
 
 static void
-EmacsFrameInitialize (request, new, dum1, dum2)
-     Widget request;
-     Widget new;
-     ArgList dum1;
-     Cardinal *dum2;
+EmacsFrameInitialize (Widget request, Widget new, ArgList dum1, Cardinal *dum2)
 {
   EmacsFrame ew = (EmacsFrame)new;
 
@@ -698,10 +668,7 @@ EmacsFrameInitialize (request, new, dum1, dum2)
 
 
 static void
-EmacsFrameRealize (widget, mask, attrs)
-     Widget widget;
-     XtValueMask *mask;
-     XSetWindowAttributes *attrs;
+EmacsFrameRealize (Widget widget, XtValueMask *mask, XSetWindowAttributes *attrs)
 {
   EmacsFrame ew = (EmacsFrame)widget;
 
@@ -717,11 +684,10 @@ EmacsFrameRealize (widget, mask, attrs)
   update_wm_hints (ew);
 }
 
-extern void free_frame_faces (/* struct frame * */);
+extern void free_frame_faces (struct frame *);
 
 static void
-EmacsFrameDestroy (widget)
-     Widget widget;
+EmacsFrameDestroy (Widget widget)
 {
   EmacsFrame ew = (EmacsFrame) widget;
   struct frame* s = ew->emacs_frame.frame;
@@ -739,8 +705,7 @@ EmacsFrameDestroy (widget)
 }
 
 void
-EmacsFrameResize (widget)
-     Widget widget;
+EmacsFrameResize (Widget widget)
 {
   EmacsFrame ew = (EmacsFrame)widget;
   struct frame *f = ew->emacs_frame.frame;
@@ -756,12 +721,7 @@ EmacsFrameResize (widget)
 }
 
 static Boolean
-EmacsFrameSetValues (cur_widget, req_widget, new_widget, dum1, dum2)
-     Widget cur_widget;
-     Widget req_widget;
-     Widget new_widget;
-     ArgList dum1;
-     Cardinal *dum2;
+EmacsFrameSetValues (Widget cur_widget, Widget req_widget, Widget new_widget, ArgList dum1, Cardinal *dum2)
 {
   EmacsFrame cur = (EmacsFrame)cur_widget;
   EmacsFrame new = (EmacsFrame)new_widget;
@@ -834,10 +794,7 @@ EmacsFrameSetValues (cur_widget, req_widget, new_widget, dum1, dum2)
 }
 
 static XtGeometryResult
-EmacsFrameQueryGeometry (widget, request, result)
-     Widget widget;
-     XtWidgetGeometry* request;
-     XtWidgetGeometry* result;
+EmacsFrameQueryGeometry (Widget widget, XtWidgetGeometry *request, XtWidgetGeometry *result)
 {
   EmacsFrame ew = (EmacsFrame)widget;
 
@@ -867,10 +824,7 @@ EmacsFrameQueryGeometry (widget, request, result)
 
 /* Special entrypoints */
 void
-EmacsFrameSetCharSize (widget, columns, rows)
-     Widget widget;
-     int columns;
-     int rows;
+EmacsFrameSetCharSize (Widget widget, int columns, int rows)
 {
   EmacsFrame ew = (EmacsFrame) widget;
   struct frame *f = ew->emacs_frame.frame;
@@ -880,8 +834,7 @@ EmacsFrameSetCharSize (widget, columns, rows)
 
 
 void
-widget_store_internal_border (widget)
-     Widget widget;
+widget_store_internal_border (Widget widget)
 {
   EmacsFrame ew = (EmacsFrame) widget;
   FRAME_PTR f = ew->emacs_frame.frame;
diff --git a/src/xfaces.c b/src/xfaces.c
index 19be9971d07..ea0f57469e1 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -3599,8 +3599,7 @@ DEFUN ("internal-set-lisp-face-attribute-from-resource",
 /* Make menus on frame F appear as specified by the `menu' face.  */
 
 static void
-x_update_menu_appearance (f)
-     struct frame *f;
+x_update_menu_appearance (struct frame *f)
 {
   struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
   XrmDatabase rdb;
diff --git a/src/xfns.c b/src/xfns.c
index 87170af9498..e4a073072f0 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -1816,9 +1816,7 @@ x_default_scroll_bar_color_parameter (struct frame *f,
    for example, but Xt doesn't).  */
 
 static void
-hack_wm_protocols (f, widget)
-     FRAME_PTR f;
-     Widget widget;
+hack_wm_protocols (FRAME_PTR f, Widget widget)
 {
   Display *dpy = XtDisplay (widget);
   Window w = XtWindow (widget);
@@ -2392,10 +2390,7 @@ xic_set_xfontset (struct frame *f, char *base_fontname)
 /* Create and set up the X widget for frame F.  */
 
 static void
-x_window (f, window_prompting, minibuffer_only)
-     struct frame *f;
-     long window_prompting;
-     int minibuffer_only;
+x_window (struct frame *f, long window_prompting, int minibuffer_only)
 {
   XClassHint class_hints;
   XSetWindowAttributes attributes;
diff --git a/src/xmenu.c b/src/xmenu.c
index 93a40792aec..d9c71b0cf2f 100644
--- a/src/xmenu.c
+++ b/src/xmenu.c
@@ -165,8 +165,7 @@ int pending_menu_activation;
 /* Return the frame whose ->output_data.x->id equals ID, or 0 if none.  */
 
 static struct frame *
-menubar_id_to_frame (id)
-     LWLIB_ID id;
+menubar_id_to_frame (LWLIB_ID id)
 {
   Lisp_Object tail, frame;
   FRAME_PTR f;
@@ -456,11 +455,7 @@ x_menu_wait_for_event (void *data)
    with BLOCK_INPUT, UNBLOCK_INPUT wrappers.  */
 
 static void
-popup_get_selection (initial_event, dpyinfo, id, do_timers)
-     XEvent *initial_event;
-     struct x_display_info *dpyinfo;
-     LWLIB_ID id;
-     int do_timers;
+popup_get_selection (XEvent *initial_event, struct x_display_info *dpyinfo, LWLIB_ID id, int do_timers)
 {
   XEvent event;
 
@@ -705,10 +700,7 @@ x_activate_menubar (FRAME_PTR f)
 
 #ifndef USE_GTK
 static void
-popup_activate_callback (widget, id, client_data)
-     Widget widget;
-     LWLIB_ID id;
-     XtPointer client_data;
+popup_activate_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
 {
   popup_activated_flag = 1;
 #ifdef USE_X_TOOLKIT
@@ -728,10 +720,7 @@ popup_deactivate_callback (GtkWidget *widget, gpointer client_data)
 }
 #else
 static void
-popup_deactivate_callback (widget, id, client_data)
-     Widget widget;
-     LWLIB_ID id;
-     XtPointer client_data;
+popup_deactivate_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
 {
   popup_activated_flag = 0;
 }
@@ -799,10 +788,7 @@ menu_highlight_callback (GtkWidget *widget, gpointer call_data)
 }
 #else
 void
-menu_highlight_callback (widget, id, call_data)
-     Widget widget;
-     LWLIB_ID id;
-     void *call_data;
+menu_highlight_callback (Widget widget, LWLIB_ID id, void *call_data)
 {
   struct frame *f;
   Lisp_Object help;
@@ -873,10 +859,7 @@ menubar_selection_callback (GtkWidget *widget, gpointer client_data)
    Figure out what the user chose
    and put the appropriate events into the keyboard buffer.  */
 static void
-menubar_selection_callback (widget, id, client_data)
-     Widget widget;
-     LWLIB_ID id;
-     XtPointer client_data;
+menubar_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
 {
   FRAME_PTR f;
 
@@ -942,8 +925,7 @@ update_frame_menubar (FRAME_PTR f)
 
 #ifdef USE_LUCID
 static void
-apply_systemfont_to_dialog (w)
-     Widget w;
+apply_systemfont_to_dialog (Widget w)
 {
   const char *fn = xsettings_get_system_normal_font ();
   if (fn) 
@@ -955,8 +937,7 @@ apply_systemfont_to_dialog (w)
 }
 
 static void
-apply_systemfont_to_menu (w)
-     Widget w;
+apply_systemfont_to_menu (Widget w)
 {
   const char *fn = xsettings_get_system_normal_font ();
   int defflt;
@@ -1352,8 +1333,7 @@ initialize_frame_menubar (FRAME_PTR f)
 
 #ifndef USE_GTK
 void
-free_frame_menubar (f)
-     FRAME_PTR f;
+free_frame_menubar (FRAME_PTR f)
 {
   Widget menubar_widget;
 
@@ -1569,10 +1549,7 @@ create_and_show_popup_menu (FRAME_PTR f, widget_value *first_wv, int x, int y, i
 LWLIB_ID widget_id_tick;
 
 static void
-popup_selection_callback (widget, id, client_data)
-     Widget widget;
-     LWLIB_ID id;
-     XtPointer client_data;
+popup_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
 {
   menu_item_selection = (Lisp_Object *) client_data;
 }
@@ -1581,8 +1558,7 @@ popup_selection_callback (widget, id, client_data)
    as a Lisp object as (HIGHPART . LOWPART).  */
 
 static Lisp_Object
-pop_down_menu (arg)
-     Lisp_Object arg;
+pop_down_menu (Lisp_Object arg)
 {
   LWLIB_ID id = (XINT (XCAR (arg)) << 4 * sizeof (LWLIB_ID)
                  | XINT (XCDR (arg)));
@@ -1599,13 +1575,7 @@ pop_down_menu (arg)
    menu pops down.
    menu_item_selection will be set to the selection.  */
 static void
-create_and_show_popup_menu (f, first_wv, x, y, for_click, timestamp)
-     FRAME_PTR f;
-     widget_value *first_wv;
-     int x;
-     int y;
-     int for_click;
-     EMACS_UINT timestamp;
+create_and_show_popup_menu (FRAME_PTR f, widget_value *first_wv, int x, int y, int for_click, unsigned int timestamp)
 {
   int i;
   Arg av[2];
@@ -1997,10 +1967,7 @@ create_and_show_dialog (FRAME_PTR f, widget_value *first_wv)
 
 #else /* not USE_GTK */
 static void
-dialog_selection_callback (widget, id, client_data)
-     Widget widget;
-     LWLIB_ID id;
-     XtPointer client_data;
+dialog_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
 {
   /* The EMACS_INT cast avoids a warning.  There's no problem
      as long as pointers have enough bits to hold small integers.  */
@@ -2018,9 +1985,7 @@ dialog_selection_callback (widget, id, client_data)
    dialog pops down.
    menu_item_selection will be set to the selection.  */
 static void
-create_and_show_dialog (f, first_wv)
-     FRAME_PTR f;
-     widget_value *first_wv;
+create_and_show_dialog (FRAME_PTR f, widget_value *first_wv)
 {
   LWLIB_ID dialog_id;
 
diff --git a/src/xterm.c b/src/xterm.c
index c00d0330c23..c78408382bd 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1367,8 +1367,7 @@ static void cvt_pixel_dtor (XtAppContext, XrmValue *, XtPointer,
    cannot be determined.  */
 
 static struct frame *
-x_frame_of_widget (widget)
-     Widget widget;
+x_frame_of_widget (Widget widget)
 {
   struct x_display_info *dpyinfo;
   Lisp_Object tail;
@@ -1404,10 +1403,7 @@ x_frame_of_widget (widget)
    if successful.  This is called from lwlib.  */
 
 int
-x_alloc_nearest_color_for_widget (widget, cmap, color)
-     Widget widget;
-     Colormap cmap;
-     XColor *color;
+x_alloc_nearest_color_for_widget (Widget widget, Colormap cmap, XColor *color)
 {
   struct frame *f = x_frame_of_widget (widget);
   return x_alloc_nearest_color (f, cmap, color);
@@ -1422,13 +1418,8 @@ x_alloc_nearest_color_for_widget (widget, cmap, color)
    Value is non-zero if successful.  */
 
 int
-x_alloc_lighter_color_for_widget (widget, display, cmap, pixel, factor, delta)
-     Widget widget;
-     Display *display;
-     Colormap cmap;
-     unsigned long *pixel;
-     double factor;
-     int delta;
+x_alloc_lighter_color_for_widget (Widget widget, Display *display, Colormap cmap,
+                                  unsigned long *pixel, double factor, int delta)
 {
   struct frame *f = x_frame_of_widget (widget);
   return x_alloc_lighter_color (f, display, cmap, pixel, factor, delta);
@@ -1471,12 +1462,9 @@ static Pixel cvt_string_to_pixel_value;
    Value is True if successful, False otherwise.  */
 
 static Boolean
-cvt_string_to_pixel (dpy, args, nargs, from, to, closure_ret)
-     Display *dpy;
-     XrmValue *args;
-     Cardinal *nargs;
-     XrmValue *from, *to;
-     XtPointer *closure_ret;
+cvt_string_to_pixel (Display *dpy, XrmValue *args, Cardinal *nargs,
+                     XrmValue *from, XrmValue *to,
+                     XtPointer *closure_ret)
 {
   Screen *screen;
   Colormap cmap;
@@ -1560,12 +1548,8 @@ cvt_string_to_pixel (dpy, args, nargs, from, to, closure_ret)
    ARGS and NARGS are like for cvt_string_to_pixel.  */
 
 static void
-cvt_pixel_dtor (app, to, closure, args, nargs)
-    XtAppContext app;
-    XrmValuePtr to;
-    XtPointer closure;
-    XrmValuePtr args;
-    Cardinal *nargs;
+cvt_pixel_dtor (XtAppContext app, XrmValuePtr to, XtPointer closure, XrmValuePtr args,
+                Cardinal *nargs)
 {
   if (*nargs != 2)
     {
@@ -3953,8 +3937,7 @@ x_window_to_scroll_bar (Display *display, Window window_id)
    if WINDOW is not part of a menu bar.  */
 
 static Widget
-x_window_to_menu_bar (window)
-     Window window;
+x_window_to_menu_bar (Window window)
 {
   Lisp_Object tail;
 
@@ -4021,14 +4004,8 @@ static Boolean xaw3d_pick_top;
    a `end-scroll' SCROLL_BAR_CLICK_EVENT' event if so.  */
 
 static void
-xt_action_hook (widget, client_data, action_name, event, params,
-                num_params)
-     Widget widget;
-     XtPointer client_data;
-     String action_name;
-     XEvent *event;
-     String *params;
-     Cardinal *num_params;
+xt_action_hook (Widget widget, XtPointer client_data, String action_name,
+                XEvent *event, String *params, Cardinal *num_params)
 {
   int scroll_bar_p;
   char *end_action;
@@ -4341,9 +4318,7 @@ xg_end_scroll_callback (GtkWidget *widget,
    the thumb is.  */
 
 static void
-xaw_jump_callback (widget, client_data, call_data)
-     Widget widget;
-     XtPointer client_data, call_data;
+xaw_jump_callback (Widget widget, XtPointer client_data, XtPointer call_data)
 {
   struct scroll_bar *bar = (struct scroll_bar *) client_data;
   float top = *(float *) call_data;
@@ -4385,9 +4360,7 @@ xaw_jump_callback (widget, client_data, call_data)
    Values < height of scroll bar mean line-wise movement.  */
 
 static void
-xaw_scroll_callback (widget, client_data, call_data)
-     Widget widget;
-     XtPointer client_data, call_data;
+xaw_scroll_callback (Widget widget, XtPointer client_data, XtPointer call_data)
 {
   struct scroll_bar *bar = (struct scroll_bar *) client_data;
   /* The position really is stored cast to a pointer.  */
@@ -4439,9 +4412,7 @@ x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
 #else /* not USE_GTK */
 
 static void
-x_create_toolkit_scroll_bar (f, bar)
-     struct frame *f;
-     struct scroll_bar *bar;
+x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
 {
   Window xwindow;
   Widget widget;
@@ -4648,9 +4619,8 @@ x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int positio
 
 #else /* not USE_GTK */
 static void
-x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole)
-     struct scroll_bar *bar;
-     int portion, position, whole;
+x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position,
+                                int whole)
 {
   struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
   Widget widget = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
@@ -9436,10 +9406,7 @@ x_destroy_window (struct frame *f)
 
 #ifndef USE_GTK
 void
-x_wm_set_size_hint (f, flags, user_position)
-     struct frame *f;
-     long flags;
-     int user_position;
+x_wm_set_size_hint (struct frame *f, long flags, int user_position)
 {
   XSizeHints size_hints;
   Window window = FRAME_OUTER_WINDOW (f);
@@ -10402,7 +10369,7 @@ x_process_timeouts (timer)
    processed, these widgets don't behave normally.  */
 
 void
-x_activate_timeout_atimer ()
+x_activate_timeout_atimer (void)
 {
   BLOCK_INPUT;
   if (!x_timeout_atimer_activated_flag)