New AIX libstdc++ testsuite failures - visibility

[Magnus Fromreide]

On Wed, Mar 22, 2006 at 10:37:13AM -0500, David Edelsohn wrote:
> 	Something has changed in the past day to introduce a huge number
> of new libstdc++ testsuite failures on AIX all complaining about
> visibility.  I do not know if this is due to a libstdc++ change or the PRE
> changes.  The failures look like:
> 
> src/libstdc++-v3/testsuite/23_containers/deque/check_construct_destroy.cc:80: warning: visibility attribute not supported in this configuration; ignored
> 
> etc.
> 
> 	Any idea what is going on?

Might it have something to do with the patch for PR c++/21581 of 2006-03-21 in
gcc/cp/ChangeLog that makes anonymous namespaces default to hidden visibility?

/MF