[PATCH] Avoid .symver on common symbols [BZ #21666]

[Florian Weimer]

On 06/23/2017 06:26 PM, H.J. Lu wrote:

>> Does this result in a visible difference for applications?  If yes,
>> please file a bug for this and reference it in the ChangeLog and commit
>> message.
> 
> It will be very hard to tell since these symbols were exported from libc.so
> by accident and we only keep them in libc.so for backward binary compatibility.
> Application can no longer reference them from libc.so.

Ah, it's the old <regexp.h> interface, and the symbols were exported
deliberately.  We apparently do not have any tests for it.

> Here is the updated patch.  OK for master?

Yes, please.  Thanks.

Florian