[Boost-bugs] [Boost C++ Libraries] #9153: Building boost::log in Sun Studio 12.3: boost::log::aux::light_function fails to build

Subject: [Boost-bugs] [Boost C++ Libraries] #9153: Building boost::log in Sun Studio 12.3: boost::log::aux::light_function fails to build
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-09-23 21:20:48

#9153: Building boost::log in Sun Studio 12.3: boost::log::aux::light_function
fails to build
-------------------------------------------------+---------------------
 Reporter:  Brian Vandenberg <phantall+boost@…>  |      Owner:  andysem
     Type:  Bugs                                 |     Status:  new
Milestone:  To Be Determined                     |  Component:  log
  Version:  Boost 1.54.0                         |   Severity:  Problem
 Keywords:                                       |
-------------------------------------------------+---------------------
 I get an error building boost::log in Sun Studio 12.3, while building
 anything that uses '''light_function_pp.hpp''':

 {{{
 "./boost/log/detail/light_function_pp.hpp", line 44: Error: Multiple
 declaration for impl.
 "./boost/log/expressions/filter.hpp", line 58:     Where: While
 specializing "boost::log::v2_mt_posix::aux::light_function<bool(const
 boost::log::v2_mt_posix::attribute_value_set&)>".
 "./boost/log/expressions/filter.hpp", line 58:     Where: Specialized in
 non-template code.
 }}}

 I can reproduce this problem on a much smaller scale:

 {{{
 template < typename SignatureT >
 class light_function ;

 template < typename ResultT, typename ArgT0 >
 class light_function < ResultT ( ArgT0 ) > {
 private:
   struct impl_base {};
   impl_base *m_pImpl;

 #if defined( BREAK_IT )
   template < typename FunT >
   class impl;
   template < typename FunT >
   friend class impl;
 #endif

   template < typename FunT >
   class impl : public impl_base {};

 #if !defined( BREAK_IT )
   template < typename FunT >
   friend class impl;
 #endif

 public:
   template <typename T>
   light_function( T const &t ) : m_pImpl( static_cast<impl_base*)new
 impl<T>() ) {}
 };

 int main( int argc, char *argv[] ) {
   light_function<bool(int&)> lf(3);

   return 0;
 }
 }}}

 When compiled in Linux or Solaris with SS12.3, I get the exact same error.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9153>
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