Merge branch 'auto-joystick' into 'master'

Use Joystick 1 and Joystick 2 by default if plugged in

See merge request STJr/SRB2!364

src/d_netcmd.c

@@ -240,7 +240,7 @@ INT32 cv_debug;
 consvar_t cv_usemouse = {"use_mouse", "On", CV_SAVE|CV_CALL,usemouse_cons_t, I_StartupMouse, 0, NULL, NULL, 0, 0, NULL};
 consvar_t cv_usemouse2 = {"use_mouse2", "Off", CV_SAVE|CV_CALL,usemouse_cons_t, I_StartupMouse2, 0, NULL, NULL, 0, 0, NULL};
 
-#if defined (DC) || defined (_XBOX) || defined (WMINPUT) || defined (_WII) //joystick 1 and 2
+#if defined (DC) || defined (_XBOX) || defined (WMINPUT) || defined (_WII) || defined(HAVE_SDL) || defined(_WIN32) //joystick 1 and 2
 consvar_t cv_usejoystick = {"use_joystick", "1", CV_SAVE|CV_CALL, usejoystick_cons_t,
 	I_InitJoystick, 0, NULL, NULL, 0, 0, NULL};
 consvar_t cv_usejoystick2 = {"use_joystick2", "2", CV_SAVE|CV_CALL, usejoystick_cons_t,