From: Alexandre Julliard <julliard@winehq.org>
Subject: Re: [PATCH v3 2/7] winebus.sys: Support adding and removing SDL devices
Message-Id: <87inar1m0b.fsf@winehq.org>
Date: Tue, 20 Feb 2018 20:47:32 +0100
In-Reply-To: <495e8bfd-7bf8-7b41-00ff-26fed5d3e6ad@codeweavers.com> (Aric Stewart's message of "Tue, 20 Feb 2018 13:30:46 -0600")
References: <495e8bfd-7bf8-7b41-00ff-26fed5d3e6ad@codeweavers.com>

Aric Stewart <aric@codeweavers.com> writes:

> +#ifdef SONAME_LIBSDL2
> +#define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
> +MAKE_FUNCPTR(SDL_GetError);
> +MAKE_FUNCPTR(SDL_Init);
> +MAKE_FUNCPTR(SDL_JoystickEventState);
> +MAKE_FUNCPTR(SDL_JoystickGetGUID);
> +MAKE_FUNCPTR(SDL_JoystickGetGUIDString);
> +#ifdef HAVE_SDL_VIDPID
> +MAKE_FUNCPTR(SDL_JoystickGetProduct);
> +MAKE_FUNCPTR(SDL_JoystickGetProductVersion);
> +MAKE_FUNCPTR(SDL_JoystickGetVendor);
> +#endif

Now that you are loading the library dynamically, HAVE_SDL_VIDPID should
be replaced by a run-time check for the necessary functions (note that
you may need to declare the prototypes explicitly if they are missing
from the header).

-- 
Alexandre Julliard
julliard@winehq.org