Only include linux/joystick.h on linux

platform/x11/os_x11.cpp

@@ -45,7 +45,10 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+
+#ifdef __linux__
 #include <linux/joystick.h>
+#endif
 
 //stupid linux.h
 #ifdef KEY_TAB
@@ -1031,7 +1034,6 @@ void OS_X11::close_joystick(int p_id) {
 };
 
 void OS_X11::probe_joystick(int p_id) {
-
 	if (p_id == -1) {
 
 		for (int i=0; i<JOYSTICKS_MAX; i++) {
@@ -1073,7 +1075,6 @@ void OS_X11::move_window_to_foreground() {
 }
 
 void OS_X11::process_joysticks() {
-
 	int bytes;
 	js_event events[32];
 	InputEvent ievent;