[PATCH 15/30] nptl: Remove pread from libpthread

[Florian Weimer]

* Adhemerval Zanella via Libc-alpha:

> I tried, but the issue is although it fixes alpha it throws an error for
> i386 with 'multiple definition of `pread@GLIBC_2.2' since its ABI also
> exports the same symbol version *but* in a different TU (non-LFS Linux 
> pread.c).
>
> The issue alpha is currently the *only* ABI with has a versioned 
> pread@GLIBC_2.2, but it is also a LFS as default so the its versioned 
> pread@GLIBC_2.2 is an alias for __libc_pread64.

How does alpha maintain its current exception status?  I find it
difficult to understand how the present state is realized.