5 files changed, 5 insertions, 5 deletions
diff --git a/frontends/riscos/bitmap.h b/frontends/riscos/bitmap.h
index 3aca30de6..f66ebb317 100644
--- a/frontends/riscos/bitmap.h
+++ b/frontends/riscos/bitmap.h
@@ -25,7 +25,7 @@ struct hlcache_handle;
 struct bitmap;
 
 /** bitmap operations table */
-struct gui_bitmap_table *riscos_bitmap_table;
+extern struct gui_bitmap_table *riscos_bitmap_table;
 
 /** save with full alpha channel (if not opaque) */
 #define BITMAP_SAVE_FULL_ALPHA	(1 << 0)
diff --git a/frontends/riscos/font.h b/frontends/riscos/font.h
index a29bad83a..5a82f63ee 100644
--- a/frontends/riscos/font.h
+++ b/frontends/riscos/font.h
@@ -26,7 +26,7 @@
 #include <rufl.h>
 
 struct plot_font_style;
-struct gui_layout_table *riscos_layout_table;
+extern struct gui_layout_table *riscos_layout_table;
 
 /** desktop font, size and style being used */
 extern char ro_gui_desktop_font_family[];
diff --git a/frontends/riscos/gui.h b/frontends/riscos/gui.h
index 65c85f92a..d4ff9ce62 100644
--- a/frontends/riscos/gui.h
+++ b/frontends/riscos/gui.h
@@ -167,7 +167,7 @@ nserror riscos_schedule(int t, void (*callback)(void *p), void *p);
 /* in search.c */
 void ro_gui_search_init(void);
 void ro_gui_search_prepare(struct browser_window *g);
-struct gui_search_table *riscos_search_table;
+extern struct gui_search_table *riscos_search_table;
 
 /* in print.c */
 void ro_gui_print_init(void);
diff --git a/frontends/riscos/textselection.h b/frontends/riscos/textselection.h
index 400e3dd26..0d7cc169b 100644
--- a/frontends/riscos/textselection.h
+++ b/frontends/riscos/textselection.h
@@ -25,7 +25,7 @@
 
 #include "oslib/wimp.h"
 
-struct gui_clipboard_table *riscos_clipboard_table;
+extern struct gui_clipboard_table *riscos_clipboard_table;
 
 void gui_start_selection(struct gui_window *g);
 
diff --git a/frontends/riscos/ucstables.h b/frontends/riscos/ucstables.h
index e5d838249..31db5d882 100644
--- a/frontends/riscos/ucstables.h
+++ b/frontends/riscos/ucstables.h
@@ -21,7 +21,7 @@
  * This is only used if nothing claims Service_International,8
  */
 
-struct gui_utf8_table *riscos_utf8_table;
+extern struct gui_utf8_table *riscos_utf8_table;
 
 nserror utf8_to_local_encoding(const char *string, size_t len, char **result);
 nserror utf8_from_local_encoding(const char *string, size_t len, char **result);