SDL_mfijoystick.m: remove VLA, so that projects can be built with error on vla
Fix usage of sizeof() in test/testgles*.c files
Fixed bug #6537 - AIX: use PAUDIO_WaitDevice
Don't compare pointer against '0', but NULL
Remove unneeded semicolon
Fixed bug #6533 - PS2_JoystickUpdate: some invalid condition
Don't compare pointer against '0', but NULL
Fix compilation. It needs to be casted to 'int' type