I had a problem compiling boost on a sparc solaris 2.8 platform. After a bit of digging the change below (notice the end of the #if). The code in the #else calls strerror_r but solaris doesn't have it. Is this the correct place to send this sort of thing or is there a more formal bug tracking system? Thanks, -glenn BEFORE: std::string errno_md( const error_code & ec ) { # if defined(BOOST_WINDOWS_API) || defined(__hpux) || (defined(__linux) && !defined(__USE_XOPEN2K)) const char * c_str = std::strerror( ec.value() ); return std::string( c_str ? c_str : "EINVAL" ); # else char buf[64]; AFTER: std::string errno_md( const error_code & ec ) { # if defined(BOOST_WINDOWS_API) || defined(__hpux) || (defined(__linux) && !defined(__USE_XOPEN2K)) || defined(__sun) const char * c_str = std::strerror( ec.value() ); return std::string( c_str ? c_str : "EINVAL" ); # else char buf[64];