[cfe-dev] Is there a way to get linkonce / selectany in C programs?

Nikola Smiljanic popizdeh at gmail.com
Tue Jul 1 23:13:52 PDT 2014


Grepping the source code tells me that selectany is only implemented as
microsoft extension. Test files use it in combination with __declspec and
they enable this functionality with -fsm-compatibility. Note that I have no
idea what this attribute actually does, I just did a search for you :)


On Wed, Jul 2, 2014 at 2:31 PM, Talin <viridia at gmail.com> wrote:

> I'm working with a code generator that produces C code and I need linkonce
> to eliminate duplicate definitions - but the clang compiler complains that
> the 'selectany' attribute is not recognized (even though I see looking
> through the clang source code that there's code to handle it.) So I'm
> wondering why the attribute isn't recognized, I'm guessing it could be any
> number of things (platform [OS X], source language (.c), and so on...)
>
> --
> -- Talin
>
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