Create a 2D window and then manually focus a different window on your desktop, call SDL_PumpEvents() so the X11 driver sets its this->hidden->switch_waiting, then set a fullscreen OpenGL window (which makes the X11 driver tear down and create a new window instead of just resizing the existing one), poll for events, and the newly-created window will think it needs to pop back to a window. Fixed by resetting switch_waiting to zero if X11_CreateWindow() had to tear down a previous window.

## Makefile.am for the darwin/MacOS X joystick driver for SDL

noinst_LTLIBRARIES = libjoystick_darwin.la
libjoystick_darwin_la_SOURCES = $(SRCS)

# The SDL joystick driver sources
SRCS =  SDL_sysjoystick.c

AM_CPPFLAGS = -no-cpp-precomp -I/System/Library/Frameworks/Kernel.framework/Headers/