Hi, I have noted the following about Boost 1.32.0. 1. boost/token_iterator.hpp is very broken on line 34. template <class TokenizerFunc, class Iterator, class Type> class token_iterator : public iterator_facade< token_iterator<TokenizerFunc, Iterator, Type> , Type // ********** SHOULD READ: const Type , typename detail::minimum_category< forward_traversal_tag , typename iterator_traversal<Iterator>::type >::type , const Type& > GCC 3.4.2 refuses to compile this when broken. 2. boost/format/format_implementation.hpp contains shadowing on line 28. The constructor takes 'str', which is named identically to a member function. 3. boost/date_time/time_duration.hpp contains shadowing on line 53. The constructor takes 'hours', 'minutes', and 'seconds', which are named identically to member functions. 4. boost/date_time/time_system_counted.hpp contains shadowing on line 34. The constructor takes 'tod', which is named identically to a member function. Shadowing makes using Boost with GCC -Wshadow difficult, and these cases are very easy to fix. 5. libs/regex/build/gcc.mak mentions '-I../../../' twice. This breaks compilation on MinGW. '-I../../..' ought to work everywhere (it does on MinGW). 6. Suggestion: It would be useful if Boost.Format were capable of delayed evaluation. int main() { format mommy("%1% %1%"); format kiddy("x%1%y"); mommy % kiddy; kiddy % 10; cout << mommy << endl; } Thanks, Stephan T. Lavavej