Hello, Recent updates to the trunk version of Boost.Test have resulted in a massive number of regressions for Sun 57 and 5.8, as shown for instance in: http://tinyurl.com/5lm7ha http://tinyurl.com/66qcze The error message is "../boost/test/utils/iterator/input_iterator_facade.hpp", line 56: Error: Multiple declaration for input_iterator_facade. After examining the updates to Boost.Test in the last days I think I found the change that's causing the regressions: http://svn.boost.org/trac/boost/changeset/47170/trunk/boost/test The change in line 26 of boost/test/impl/unit_test_main.ipp causes the header <boost/test/utils/iterator/token_iterator.hpp> to be included where previously that was not the case. This in turns includes <boost/test/utils/iterator/input_iterator_facade.hpp>, which contains the following problematic code (for Sun 5.7-8) around line 25: #if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551)) public: #else template <class I, class V, class R, class TC> friend class input_iterator_facade; #endif This perfectly correct friend declaration is not processed properly by Sun 5.7 and 5.8 hence the error. May I ask that the problem be fixed by applying either one of the following? 1. Add a workaround for Sun 5.7-8 at line 35 of boost/test/utils/iterator/input_iterator_facade.hpp 2. Add a !workaround for Sun 5.7-8 at line 26 of boost/test/impl/unit_test_main.ipp Thank you! Joaquín M López Muñoz Telefónica, Investigación y Desarrollo