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There is a bug in FreeBSD's <code>readdir_r</code> function in versions 4.5 and earlier that can cause a SEGV when reading large directories. A patch for FreeBSD libc is available (see http://www.freebsd.org/cgi/query-pr.cgi?pr=misc/30631 ) which has been integrated into FreeBSD 4.6.</p> <h2 id="$^X-doesn't-always-contain-a-full-path-in-FreeBSD"><a class="permalink" href="#$%5EX-doesn't-always-contain-a-full-path-in-FreeBSD">#</a><a id="X-doesnt-always-contain-a-full-path-in-FreeBSD"></a>$^X doesn't always contain a full path in FreeBSD</h2> <p>perl 5.8.0 sets <code>$^X</code> where possible to a full path by asking the operating system. On FreeBSD the full path of the perl interpreter is found by reading the symlink <i>/proc/curproc/file</i>. There is a bug on FreeBSD, where the result of reading this symlink is can be wrong in certain circumstances (see http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 ). In these cases perl will fall back to the old behaviour of using C's argv[0] value for <code>$^X</code>.</p> <h2 id="Perl-will-no-longer-be-part-of-"base-FreeBSD""><a class="permalink" href="#Perl-will-no-longer-be-part-of-%22base-FreeBSD%22">#</a><a id="Perl"></a><a id="Perl-will-no-longer-be-part-of-base-FreeBSD"></a>Perl will no longer be part of "base FreeBSD"</h2> <p>Not as bad as it sounds--what this means is that Perl will no longer be part of the <b>kernel build system</b> of FreeBSD. Perl will still very probably be part of the "default install", and in any case the latest version will be in the ports system. The first FreeBSD version this change will affect is 5.0, all 4.n versions will keep the status quo.</p> <h1 id="AUTHOR"><a class="permalink" href="#AUTHOR">#</a>AUTHOR</h1> <p>Nicholas Clark <nick@ccl4.org>, collating wisdom supplied by Slaven Rezic and Tim Bunce.</p> <p>Please report any errors, updates, or suggestions to <i>perlbug@perl.org</i>.</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. 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