The London Perl and Raku Workshop takes place on 26th Oct 2024. If your company depends on Perl, please consider sponsoring and/or attending.
#!./perl

print "1..1\n";

# Make sure that case-insensitive matching of any Latin1 chars don't load
# utf8.pm.  We assume that NULL won't force loading utf8.pm, and since it
# doesn't match any of the other chars, the regexec.c code would try to load
# a swash if it thought there was one.
"\0" =~ /[\001-\xFF]/i;

print "not" if exists $INC{"utf8.pm"};
print "ok 1\n";