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PERLFREEBSD(1)         Perl Programmers Reference Guide         PERLFREEBSD(1)



NAME
       README.freebsd - Perl version 5 on FreeBSD systems

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

       FreeBSD core dumps from readdir_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 a bug in FreeBSD's "readdir_r" 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.

       $^X doesn't always contain a full path in FreeBSD

       perl 5.8.0 sets $^X 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 /proc/curproc/file. 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 $^X.

       Perl will no longer be part of "base FreeBSD"

       Not as bad as it sounds--what this means is that Perl will no longer be part of the kernel build system 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.

AUTHOR
       Nicholas Clark <nickATccl4.org>, collating wisdom supplied by Slaven Rezic and Tim Bunce.

       Please report any errors, updates, or suggestions to perlbugATperl.org.



perl v5.8.8                       2006-01-07                    PERLFREEBSD(1)