I've just tried for the first time to run mkfiles.pl on a system where
plain 'require "sbcsgen.pl"' does not search the cwd by default.
# HACK: One of the source files in `charset' is auto-generated by
# sbcsgen.pl, and licence.h is likewise generated by licence.pl. We
# need to generate those _now_, before attempting dependency analysis.
-eval 'chdir "charset"; require "sbcsgen.pl"; chdir ".."; select STDOUT;';
-eval 'require "licence.pl"; select STDOUT;';
+eval 'chdir "charset"; require "./sbcsgen.pl"; chdir ".."; select STDOUT;';
+eval 'require "./licence.pl"; select STDOUT;';
@srcdirs = ("./");