id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4144	boost::program_options::parse_enviornment lacks allow_unregistered	dan@…	Vladimir Prus	"allow_unregistered should be an option for the parse_environment parser.

Given a suite of tools that share some but not all options, parse_environment forces all programs to register all possible options.

Given a suite of tools progb and progc such that:

progb --opta --optb
progc --opta --optc

are valid options to parse, using parse_environment(desc, ""PREFIX_"") will only work for PREFIX_OPTA.  If PREFIX_OPTB or PREFIX_OPTC are set the other program will fail."	Feature Requests	new	Boost 1.43.0	program_options	Boost 1.42.0	Not Applicable