[Boost-users] annoying warnings with mingw-w64 gcc-5.2.0

Subject: [Boost-users] annoying warnings with mingw-w64 gcc-5.2.0
From: renaud lepere (lepere.renaud_at_[hidden])
Date: 2015-09-27 11:31:27

When I compile my code with  gcc version 5.2.0 (x86_64-posix-seh-rev0, 
Built by MinGW-W64 project), I have annoying warnings with boost/utf and 
boost/asio (1.59).

For example if I compile this simple file :

#define BOOST_TEST_MODULE ExactSuite
#include "boost/test/unit_test.hpp"

I get :
c:\Users\Renaud\nest\external\boost_1_59_0/boost/test/unit_test_log.hpp:130:28: 
warning: 'boost::unit_test::{anonymous}::unit_test_log' defined but not 
used [-Wunused-variable]
  BOOST_TEST_SINGLETON_INST( unit_test_log )

I can add
#pragma GCC diagnostic ignored "-Wunused-variable"
just before the include but it seems strange (and I have to do it in few 
other files).

Does someone have similar problem ? or a better fix ?