Perl version 5 on FreeBSD systems
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
function in versions 4.5 and earlier that can cause a SEGV
reading large directories. A patch for FreeBSD libc is available
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
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
In these cases perl will fall back to the old behaviour of using C's
argv value for $^X
Nicholas Clark <[email protected]
>, collating wisdom supplied by Slaven Rezic
and Tim Bunce.
Please report any errors, updates, or suggestions to [email protected]rg.