[Numpy-discussion] Should we drop support for "one file" compilation mode?

[David Cournapeau]

On Tue, Oct 6, 2015 at 12:07 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Tue, 6 Oct 2015 11:00:30 +0100
> David Cournapeau <cournape at gmail.com> wrote:
> >
> > Assuming one of the rumour is related to some comments I made some time
> > (years ?) earlier, the context was the ability to hide exported symbols.
> As
> > you know, the issue is not to build extensions w/ multiple compilation
> > units, but sharing functionalities between them without sharing them
> > outside the extension.
>
> Can't you use the visibility attribute with gcc for this?
>

We do that already for gcc, I think the question was whether every platform
supported this or not (and whether we should care).


> Other Unix compilers probably provide something similar. The issue
> doesn't exist on Windows by construction.
>
>
> https://gcc.gnu.org/onlinedocs/gcc-5.2.0/gcc/Function-Attributes.html#Function-Attributes
>
> By the way, external packages may reuse the npy_* functions, so I would
> like them not the be hidden :-)
>

The npy_ functions in npymath were designed to be exported. Those would
stay that way.

David

>
> Regards
>
> Antoine.
>
>
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