Jakub Jelinek <ja...@redhat.com> writes:

> Note, if for whatever reason one wants the common behavior e.g. on a few
> selected variables, one can add __attribute__((__common__)) to those
> variables to override the default, it doesn't have to be just -fcommon
> that changes the behavior of all non-automatic variables without
> initializers.

Good point.  Perhaps that's worth mentioning in the porting notes.

The library is from Intel, so it has to support a compiler with mythical
powers, but it already conditionalizes assorted __attribute__s, as you'd
expect.
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