7 files changed, 14 insertions, 7 deletions
diff --git a/gdb/tui/tui-hooks.c b/gdb/tui/tui-hooks.c
index 76a50fc..0e45e0e 100644
--- a/gdb/tui/tui-hooks.c
+++ b/gdb/tui/tui-hooks.c
@@ -277,8 +277,9 @@ tui_remove_hooks (void)
   tui_attach_detach_observers (false);
 }
 
+void _initialize_tui_hooks ();
 void
-_initialize_tui_hooks (void)
+_initialize_tui_hooks ()
 {
   /* Install the permanent hooks.  */
   gdb::observers::new_objfile.attach (tui_new_objfile_hook);
diff --git a/gdb/tui/tui-interp.c b/gdb/tui/tui-interp.c
index 808a77d..978b502 100644
--- a/gdb/tui/tui-interp.c
+++ b/gdb/tui/tui-interp.c
@@ -306,8 +306,9 @@ tui_interp_factory (const char *name)
   return new tui_interp (name);
 }
 
+void _initialize_tui_interp ();
 void
-_initialize_tui_interp (void)
+_initialize_tui_interp ()
 {
   interp_factory_register (INTERP_TUI, tui_interp_factory);
 
diff --git a/gdb/tui/tui-layout.c b/gdb/tui/tui-layout.c
index 3720d3e..01961f5 100644
--- a/gdb/tui/tui-layout.c
+++ b/gdb/tui/tui-layout.c
@@ -790,8 +790,9 @@ initialize_layouts ()
 /* Function to initialize gdb commands, for tui window layout
    manipulation.  */
 
+void _initialize_tui_layout ();
 void
-_initialize_tui_layout (void)
+_initialize_tui_layout ()
 {
   struct cmd_list_element *cmd;
 
diff --git a/gdb/tui/tui-regs.c b/gdb/tui/tui-regs.c
index 50b3e72..80d1a27 100644
--- a/gdb/tui/tui-regs.c
+++ b/gdb/tui/tui-regs.c
@@ -650,8 +650,9 @@ tui_reggroup_completer (struct cmd_list_element *ignore,
     }
 }
 
+void _initialize_tui_regs ();
 void
-_initialize_tui_regs (void)
+_initialize_tui_regs ()
 {
   struct cmd_list_element **tuicmd, *cmd;
 
diff --git a/gdb/tui/tui-stack.c b/gdb/tui/tui-stack.c
index 18e9188..7758f2f 100644
--- a/gdb/tui/tui-stack.c
+++ b/gdb/tui/tui-stack.c
@@ -370,8 +370,9 @@ tui_update_command (const char *arg, int from_tty)
 /* Function to initialize gdb commands, for tui window stack
    manipulation.  */
 
+void _initialize_tui_stack ();
 void
-_initialize_tui_stack (void)
+_initialize_tui_stack ()
 {
   add_com ("update", class_tui, tui_update_command,
 	   _("Update the source window and locator to "
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index df9bf43..8b7c399 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -1012,8 +1012,9 @@ parse_scrolling_args (const char *arg,
 /* Function to initialize gdb commands, for tui window
    manipulation.  */
 
+void _initialize_tui_win ();
 void
-_initialize_tui_win (void)
+_initialize_tui_win ()
 {
   static struct cmd_list_element *tui_setlist;
   static struct cmd_list_element *tui_showlist;
diff --git a/gdb/tui/tui.c b/gdb/tui/tui.c
index 99d30a5..be19ef7 100644
--- a/gdb/tui/tui.c
+++ b/gdb/tui/tui.c
@@ -605,8 +605,9 @@ tui_get_command_dimension (unsigned int *width,
   return true;
 }
 
+void _initialize_tui ();
 void
-_initialize_tui (void)
+_initialize_tui ()
 {
   struct cmd_list_element **tuicmd;