[boost] libs/regex/example/grep/grep.cpp: g++ 4.0 compilation error

Test regex/grep is failing due to a compilation error with g++ 4.0: ../libs/regex/example/grep/grep.cpp: In function 'int main(int, const char**)': ../libs/regex/example/grep/grep.cpp:130: error: invalid conversion from 'const char**' to 'char**' ../libs/regex/example/grep/grep.cpp:130: error: initializing argument 2 of 'boost::program_options::basic_command_line_parser<charT>::basic_command_line_parser(int, charT**) [with charT = char]' This is due to "main" being declared as: int main(int argc, const char * argv[]) ... phil -- change name before "@" to "phil" for email