Fix some includes and stuff.

Makefile.win64

@@ -6,6 +6,7 @@ JOBJ = conf/config_file.o tools/main-stub.o tools/ssnes-joyconfig.o
 CC = gcc
 CXX = g++
 
+HAVE_DINPUT = 1
 HAVE_SRC = 0
 HAVE_SDL = 1
 HAVE_XML = 1
@@ -105,6 +106,13 @@ ifeq ($(HAVE_PYTHON), 1)
    OBJ += gfx/py_state/py_state.o
 endif
 
+ifeq ($(HAVE_DINPUT), 1)
+   LIBS += -ldinput8 -ldxguid -lole32
+   DEFINES += -DHAVE_DINPUT
+   OBJ += input/dinput.o
+endif
+
+
 ifneq ($(V),1)
    Q := @
 endif

input/dinput.c

@@ -109,7 +109,7 @@ sdl_dinput_t* sdl_dinput_init(void)
    di->hWnd = info.window;
 
    if (FAILED(DirectInput8Create(
-      GetModuleHandle(NULL), 0x0800, &IID_IDirectInput8,
+      GetModuleHandle(NULL), DIRECTINPUT_VERSION, &IID_IDirectInput8,
       (void**)&di->ctx, NULL)))
    {
       SSNES_ERR("Failed to init DirectInput.\n");

input/ssnes_dinput.h

@@ -18,6 +18,9 @@
 #ifndef __SSNES_DINPUT_H
 #define __SSNES_DINPUT_H
 
+#undef DIRECTINPUT_VERSION
+#define DIRECTINPUT_VERSION 0x0800
+
 #include <dinput.h>
 #include <stdbool.h>
 #include "general.h"