[boost] Boost:Foreach Werror flag's problem in foreach.hpp

Hi , While using Boost (ver 1.51.0) file "foreach.hpp" I am getting following errors: Boost/1.51/Inc/boost/foreach.hpp:454:5: error: cast from 'char*' to 'std::vector<std::pair<std::basic_string<char>, std::basic_string<char> >

*' increases required alignment of target type [-Werror=cast-align] cc1plus: all warnings being treated as errors

I need to use "Werror" flag in my application. Any solution for this problem? -- Regards, Gaurav