--- xlockmore_orig/xglock/xglock.c	2026-03-31 14:30:19.287648907 +0200
+++ xlockmore/xglock/xglock.c	2026-03-31 14:33:42.738353309 +0200
@@ -105,6 +105,8 @@
 /*static GtkWidget *font_sel_entry =(GtkWidget *)NULL;*/
 static GtkTooltips *tooltips=(GtkTooltips *)NULL;
 
+# define NeedFunctionsPrototypes 1
+
 /* Prototypes */
 #if defined( __ANSI_C__ ) || defined( NeedFunctionsPrototypes )
 # define __PROTO( name, args )  name args
@@ -114,14 +116,14 @@
 
 #define STD_CB_ARGS	(GtkWidget *, gpointer)
 
-static void *__PROTO( secured_malloc, (size_t) );
-static void *__PROTO( secured_calloc, (int, size_t) );
+static void *__PROTO( secured_malloc, (gulong) );
+static void *__PROTO( secured_calloc, (gulong, gulong) );
 static void *__PROTO( secured_realloc, (void *, size_t) );
 static gchar *__PROTO( check_quotes, (gchar *str) );
 
 static void __PROTO( mode_list_item_select_cb, STD_CB_ARGS );
 static void __PROTO( mode_list_item_unselect_cb, STD_CB_ARGS );
-static void __PROTO( compose_xlock_command, (char *) );
+static void __PROTO( compose_xlock_command, (gchar ***, gulong *, gulong *) );
 static void __PROTO( kill_xlock_cb, STD_CB_ARGS );
 static void __PROTO( launch_xlock, STD_CB_ARGS );
 static void __PROTO( exit_xglock, STD_CB_ARGS );
@@ -140,7 +142,7 @@
 
 static void __PROTO( file_selection_cancel_cb, STD_CB_ARGS );
 static void __PROTO( file_selection_ok_cb, STD_CB_ARGS );
-static void __PROTO( create_file_selection_dialog, STD_CB_ARGS );
+static void __PROTO( create_file_selection_dialog, (GtkWidget *, struct_option_fntcol *) );
 
 static void __PROTO( contextual_help_dialog, STD_CB_ARGS );
 static void __PROTO( window_help_dialog, STD_CB_ARGS );
@@ -151,9 +153,9 @@
 static GtkWidget * __PROTO( create_file_menu, (GtkWidget *) );
 static GtkWidget * __PROTO( create_help_menu, (GtkWidget *) );
 
-static void __PROTO( create_fntColorOptions_entries, (GtkWidget *) );
-static void __PROTO( create_genOptions_entries, (GtkWidget *) );
-static void __PROTO( create_boolOptions_buttons, (GtkWidget *) );
+static void __PROTO( create_fntColorOptions_entries, (GtkScrolledWindow *) );
+static void __PROTO( create_genOptions_entries, (GtkScrolledWindow *) );
+static void __PROTO( create_boolOptions_buttons, (GtkScrolledWindow *) );
 
 #if GTK_CHECK_VERSION(2,0,0)
 /* GTK+ 2.x differences */