[Boost-users] Boost, GCC, TR1 question

Subject: [Boost-users] Boost, GCC, TR1 question
From: Anthony Foglia (AFoglia_at_[hidden])
Date: 2009-04-06 18:37:40

We've stumbled across an incompatiblity in mixing TR1 stuff from GCC 4.3 
and Boost.  The smallest test case is simply

#include <tr1/array>
#include <boost/tr1/tuple.hpp>

This fails because GCC's array declares and specializes the GCC's 
tuple_size and tuple_element, while boost/tr1/tuple.hpp by default uses 
::boost::fusion::tuple_size and tuple_element.

It appears that defining BOOST_HAS_GCC_TR1 before including the boost 
libraries will solve the problem.  Is there a better way?

More importantly, this is code in part of library used by a number of 
other projects.  Will we have to recompile the boost libraries (we're 
using the current Ubuntu package), and/or any of our projects that link 
against this code, or should linkage not be a problem?

-- 
Anthony Foglia
Princeton Consultants
[phone] x233