K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2018-08-10T00:10:57.950633Z
K 7
svn:log
V 523
Makefile.inc1: Add libl to -legacy as well

libl is needed for config(8), which is a bootstrap-tool. It is possible to
build a system WITHOUT_TOOLCHAIN to exclude lex and thus, libl. We still
need to support building from this kind of host, though.

While here, group the config(8) dependencies together and add a small
explanation. These can likely both be scoped more clearly, but this will
need some further investigation.

Reported by:	rgrimes (not WITHOUT_TOOLCHAIN, but provoked investigation)
MFC after:	immediately

END