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#!/usr/bin/perl -n /^#/ and next; /c::to_utf8/ || /c::from_utf8/ and next; /\bc::(\w+)/ and push @c, [ $1, $ARGV, $. ] ; eof && close ARGV; END { $_ = join '', `cat c/stuff.xs.pl`; foreach $c (@c) { /$c->[0]/ or $err = print "$c->[1]:$c->[2]: $c->[0] not in c.xs\n"; } exit $err; }