晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //usr/share/perl5/pod/perlopenbsd.pod
If you read this file _as_is_, just ignore the funny characters you
see.  It is written in the POD format (see pod/perlpod.pod) which is
specifically designed to be readable as is.

=head1 NAME

perlopenbsd - Perl version 5 on OpenBSD systems

=head1 DESCRIPTION

This document describes various features of OpenBSD that will affect how Perl
version 5 (hereafter just Perl) is compiled and/or runs.

=head2 OpenBSD core dumps from getprotobyname_r and getservbyname_r with ithreads

When Perl is configured to use ithreads, it will use re-entrant library calls
in preference to non-re-entrant versions.  There is an incompatibility in
OpenBSD's C<getprotobyname_r> and C<getservbyname_r> function in versions 3.7
and later that will cause a SEGV when called without doing a C<bzero> on
their return structs prior to calling these functions.  Current Perl's
should handle this problem correctly.  Older threaded Perls (5.8.6 or earlier)
will run into this problem.  If you want to run a threaded Perl on OpenBSD
3.7 or higher, you will need to upgrade to at least Perl 5.8.7.

=head1 AUTHOR

Steve Peters <steve@fisharerojo.org>

Please report any errors, updates, or suggestions to F<perlbug@perl.org>.

haha - 2025