pthread_key_create and !-lpthreads binaries

[Daniel Eischen]

On Sun, 13 Mar 2011, Robert Watson wrote:

>
> Dear threading folk:
>
> This afternoon I wrote some threaded code for Mac OS X, and then checked it 
> out on FreeBSD and was a bit surprised when it compiled but didn't work. 
> Turns out, of course, that on Mac OS X I'd omitted -lpthread and not noticed, 
> as the thread primitives are in libSystem.  It ran, and the reason I ran into 
> trouble is that, although no-op locking calls are fine, getting back 
> "success" from pthread_key_create() when it has actually failed is 
> problematic.
>
> Would it be possible to make the thread stub for pthread_key_create() return 
> an error, instead of succeeding (but not actually succeeding)?  Or, perhaps 
> better yet, I should get a link-time error for that function, even though I 
> shouldn't get one for lock/unlock?

I think returning an error in this case is probably correct.
I can look into it if no one else gets to it before me.

-- 
DE