I found a really simple solution!
#if defined(_EVENT_HAVE_ARC4RANDOM_BUF)
/* OSX 10.7 introducd arc4random_buf, so if you build your program
* there, you'll get surprised when older versions of OSX fail to run.
* To solve this, we can check whether the function pointer is set,
* and fall back otherwise. (OSX does this using some linker
* trickery.)
*/
{
void* tptr = (void*)arc4random_buf;
if (tptr != NULL) {
return arc4random_buf(buf, n);
}
}
#endif
Silences the warning just fine.
On Sep 16, 2013, at 10:51 AM, Nick Mathewson <[email protected]> wrote:
> On Mon, Sep 16, 2013 at 1:17 PM, Ralph Castain <[email protected]> wrote:
> [...]
>> I'm unaware of a way to turn the warning off for one line - of course, we
>> could turn if off for all of libevent, but that seems a tad extreme and may
>> not be a good idea.
>>
>> Only other option I can think of would be to use dlsym to check for the
>> existence of the function - would that be an acceptable solution?
>
> I hope so!
>
> For what it's worth, Greg Hazel introduced the current behavior with
> bff5f9407341030c7, so it might be worth asking him what he thinks
> and/or what environment to test this in. Greg?
>
> --
> Nick
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