`make info' on 21.2.20 generates a bunch of warnings

Is this normal? If so, should make generate an "expect warnings like this" comment? Typical examples (there were a couple hundred altogether, I guess): ./objects.texi:1547: warning: ＠sc argument all uppercase, thus no effect. ./custom1.texi:172: warning: unlikely character ( in ＠var. Debian potato, current as of about this week. GNU makeinfo 4.0. -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 __________________________________________________________________________ __________________________________________________________________________ What are those two straight lines for? "Free software rules."