[Patch] Rename --enable-visibility to --enable-libstdcxx-visibility, adjust docs

[Paolo Carlini]

On 11/08/2011 03:02 PM, Jonathan Wakely wrote:
> On 8 November 2011 13:08, Paolo Carlini wrote:
>> Hi,
>>
>> this is what I'm finishing testing. Jon, is the updated documentation good
>> enough?
> That new wording looks good to me.  My only comment would be that as
> it says "In 4.2 and later" it might be worth adding "Prior to 4.7 this
> option was spelled --enable-visibility" to the end.
Sure.

Thanks!
Paolo.