Hi, I get the following compile error when compiling the latest svn version of LyX with the current 1.34 branch of boost with gcc 4.0.2 (comes with SuSE Linux 10.0): ./../boost/boost/iostreams/filter/symmetric.hpp:112: error: ‘boost::iostreams::symmetric_filter<boost::iostreams::detail::zlib_compressor_impl<std::allocator<char>

, std::allocator<char> >::<anonymous enum>’ is/uses anonymous type ../../boost/boost/iostreams/filter/symmetric.hpp:112: error: trying to instantiate ‘template<class T> struct boost::is_integral’ ../../boost/boost/iostreams/filter/symmetric.hpp:124: error: ‘boost::iostreams::symmetric_filter<boost::iostreams::detail::zlib_compressor_impl<std::allocator<char> , std::allocator<char> >::<anonymous enum>’ is/uses anonymous type ../../boost/boost/iostreams/filter/symmetric.hpp:124: error: trying to instantiate ‘template<class T> struct boost::is_integral’ ../../boost/boost/iostreams/filter/symmetric.hpp:131: error: ‘boost::iostreams::symmetric_filter<boost::iostreams::detail::zlib_compressor_impl<std::allocator<char> , std::allocator<char> >::<anonymous enum>’ is/uses anonymous type ../../boost/boost/iostreams/filter/symmetric.hpp:131: error: trying to instantiate ‘template<class T> struct boost::is_integral’

I believe that this is a compiler bug, at least I could not find anything wrong in the code, and gcc 4.1 works fine. Nevertheless a workaround should be added to the iostreams library IMHO, especially since it is already in HEAD: http://boost.cvs.sourceforge.net/boost/boost/boost/iostreams/filter/symmetric.hpp?r1=1.1&r2=1.1.2.1 Could somebody put this fix into the 1.34 branch please? Thanks, Georg