NAME
perlfreebsd - 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 readdirr 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 "readdirr" 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 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
using "sysctl" with "KERNPROCPATHNAME" if that is supported, else by
reading the symlink /proc/curproc/file. FreeBSD 7 and earlier has a bug
where either approach sometimes returns an incorrect value (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.
AUTHOR
Nicholas Clark , collating wisdom supplied by Slaven
Rezic and Tim Bunce.
Please report any errors, updates, or suggestions to perlbug@perl.org.
perl v5.16.3 2013-03-04 PERLFREEBSD(1)