id summary reporter owner description type status milestone component version severity resolution keywords cc 2808 boost parameters and gcc -Wunused-parameter plasmahh@… Daniel Wallin Hi, the BOOST_PARAMETER_FUNCTION macro leaves a helper function with the parameter boost_parameter_enabler_argument around. however, that parameter is never used, so gcc with -Wunused-parameters leads to really ugly template infested warnings that the user has no control over. I suggest therefore either to remove the name of the parameter entirely (or rather comment it out for documentation purposes), or if this is not supported by all compilers (gcc 4.2-4.4 do work here) to have this parameter casted to void in the function body. Bugs closed Boost 1.39.0 parameter Boost 1.38.0 Problem fixed -Wunused-parameter