[RFC] How to add vector math functions to Glibc

[Carlos O'Donell]

On 09/26/2014 09:45 AM, Andrew Senkevich wrote:
> So lets discuss Glibc build changes.
> Build of libmvec (and hence libm.so installation) need to be
> architecture dependent and optional, and some changes already was
> discussed in https://sourceware.org/ml/libc-alpha/2014-09/msg00578.html.
> Is it OK additionally to have configure option --enable-mathvec with
> default=no and with default=yes for x86_86 build?

Under what circumstances would a non-x86_64 target build with
--enable-mathvec?

When they have their own API/ABI standard to implement and provide
in libmvec.so?

What's wrong with simply producing a libmvec.so that has no public
symbols?

It simplifies everything to just always ship libmvec.so, even if
it's empty.

Cheers,
Carlos.