From: Aric Stewart <aric@codeweavers.com>
Subject: Re: [PATCH v3 2/7] winebus.sys: Support adding and removing SDL devices
Message-Id: <2e465c4a-4917-0311-b87c-5ebb20835762@codeweavers.com>
Date: Tue, 20 Feb 2018 13:49:01 -0600
In-Reply-To: <87inar1m0b.fsf@winehq.org>
References: <495e8bfd-7bf8-7b41-00ff-26fed5d3e6ad@codeweavers.com> <87inar1m0b.fsf@winehq.org>

Ok yes, they are missing from the header so I was unsure what the proper approach was for that.

Is there a good example of the explicit prototype I could follow?

thanks!
-aric

On 2/20/18 1:47 PM, Alexandre Julliard wrote:
> 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).
>