[Boost-bugs] [Boost C++ Libraries] #6998: visibility problems on Mac OS X / GCC

Subject: [Boost-bugs] [Boost C++ Libraries] #6998: visibility problems on Mac OS X / GCC
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-06-19 12:35:09

#6998: visibility problems on Mac OS X / GCC
--------------------------------+-------------------------------------------
 Reporter:  mgaunard            |       Owner:  vladimir_prus  
     Type:  Bugs                |      Status:  new            
Milestone:  To Be Determined    |   Component:  program_options
  Version:  Boost 1.49.0        |    Severity:  Problem        
 Keywords:  visibility gcc mac  |  
--------------------------------+-------------------------------------------
 When an application built with -fvisibility=hidden is linked against
 libboost_program_options.dylib (built with default visibility), the linker
 emits the following warning:

 {{{
 ld: warning: direct access in
 __static_initialization_and_destruction_0(int, int) to global weak symbol
 boost::program_options::options_description::~options_description() means
 the weak symbol cannot be overridden at runtime. This was likely caused by
 different translation units being compiled with different visibility
 settings.
 }}}

 Even if the two are built with different visibility settings the
 program_options headers should force whatever needs to be visible to be.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6998>
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