id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1666	Separate library into safe and unsafe parts	felix winkelmann		"Many internal primitives in library.scm are compiled in safe mode, but are not strictly required to be safe. For normal primitives we want argument-count checking, etc., but since safeness declarations can only be scoped globally, all low-level interal procedures are compiled in safe mode as well, preventing possible optimizations by the compiler.

I suggest having two files, library.scm and library-u.scm (for example), one compiled safe, the other unsafe. It should be possible to easily move definitions from one to the other, so that it can be done on a case-by-case basis.
"	enhancement	closed	minor	5.4	core libraries	5.1.0	wontfix			medium