[input] Delay event system init

I think I had though it using a constructor init was ok, but it turns
out that was problematic. That, or I missed it in my recent audit. Fixes
a sys syserror during shutdown.

include/QF/input/event.h

@@ -122,6 +122,7 @@ typedef struct IE_event_s {
 
 typedef int ie_handler_t (const IE_event_t *, void *data);
 
+void IN_Event_Init (void);
 int IE_Send_Event (const IE_event_t *event);
 int IE_Add_Handler (ie_handler_t *event_handler, void *data);
 void IE_Remove_Handler (int handle);

libs/input/in_axis.c

@@ -120,6 +120,7 @@ IN_AxisRemoveListener (in_axis_t *axis, axis_listener_t listener, void *data)
 static void
 in_axis_shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "in_axis_shutdown\n");
 	Hash_DelTable (axis_tab);
 }
 

libs/input/in_binding.c

@@ -781,6 +781,7 @@ IN_Binding_Activate (void)
 static void
 IN_Binding_Shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "IN_Binding_Shutdown\n");
 	for (in_devbindings_t *db = devbindings_list; db; db = db->next) {
 		clear_connection (db);
 	}

libs/input/in_button.c

@@ -260,6 +260,7 @@ IN_ButtonClearStates (void)
 static void
 in_button_shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "in_button_shutdown\n");
 	Hash_DelTable (button_tab);
 }
 

libs/input/in_common.c

@@ -530,9 +530,7 @@ IN_LoadConfig (plitem_t *config)
 static void
 IN_shutdown (void *data)
 {
-	//JOY_Shutdown ();
-
-	Sys_MaskPrintf (SYS_vid, "IN_shutdown\n");
+	Sys_MaskPrintf (SYS_input, "IN_shutdown\n");
 	for (size_t i = in_drivers.size; i-- > 0; ) {
 		in_regdriver_t *rd = &in_drivers.a[i];
 		if (rd->driver.shutdown) {
@@ -548,6 +546,7 @@ void
 IN_Init (void)
 {
 	Sys_RegisterShutdown (IN_shutdown, 0);
+	IN_Event_Init ();
 	IN_ButtonInit ();
 	IN_AxisInit ();
 	IMT_Init ();

libs/input/in_evdev.c

@@ -75,6 +75,7 @@ in_evdev_check_select (qf_fd_set *fdset, void *data)
 static void
 in_evdev_shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "in_evdev_shutdown\n");
 	inputlib_close ();
 
 	for (unsigned i = 0; i < devmap._size; i++) {

libs/input/in_event.c

@@ -124,12 +124,12 @@ IE_Get_Focus (void)
 static void
 in_event_shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "in_event_shutdown\n");
 	DARRAY_CLEAR (&ie_handlers);
 }
 
-static void __attribute__((constructor))
-in_event_init (void)
+void
+IN_Event_Init (void)
 {
-	//FIXME see in_evdev
 	Sys_RegisterShutdown (in_event_shutdown, 0);
 }

libs/input/in_imt.c

@@ -939,6 +939,7 @@ static imtcmd_t imt_commands[] = {
 static void
 IMT_Shutdown (void *data)
 {
+	Sys_MaskPrintf (SYS_input, "IMT_Shutdown\n");
 	imt_drop_all_f ();
 	Hash_DelTable (recipe_tab);