id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1539	Allow conditionals in egg specifications	felix winkelmann	felix winkelmann	"To have more flexibility in .egg files, a conditional form would be helpful, similar (or even identical) to `cond-expand` that expands parts of the egg specification depending on system features.

To allow customizing the installation of eggs further, the `-feature` option to `chicken-install` should be resurrected."	enhancement	closed	major	5.1	extensions	5.0.0	fixed			medium