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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 <nick@ccl4.org>, collating wisdom supplied by Slaven Rezic
  and Tim Bunce.

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

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