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 operat-
ing 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 prob-
ably be part of the "default install", and in any case the latest ver-
sion 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.
perl v5.8.9 2007-11-17 PERLFREEBSD(1)
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