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authorNicholas Clark <nick@ccl4.org>2011-09-28 11:38:28 +0200
committerNicholas Clark <nick@ccl4.org>2011-09-28 11:38:28 +0200
commit7969fa3ad87a5c1e868e959d5ff214a5a1b2fdab (patch)
treee420e693d9608c66d42102f459c704f80f728ad1 /README.freebsd
parent6f31bef90fda3b9a8027adfb123055bc0eefc81c (diff)
downloadperl-7969fa3ad87a5c1e868e959d5ff214a5a1b2fdab.tar.gz
Update README.freebsd with the new approach for making $^X absolute.
Diffstat (limited to 'README.freebsd')
-rw-r--r--README.freebsd9
1 files changed, 5 insertions, 4 deletions
diff --git a/README.freebsd b/README.freebsd
index 6447ec45a7..4bfe974137 100644
--- a/README.freebsd
+++ b/README.freebsd
@@ -22,10 +22,11 @@ which has been integrated into FreeBSD 4.6.
=head2 $^X doesn't always contain a full path in FreeBSD
-perl 5.8.0 sets C<$^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 F</proc/curproc/file>. FreeBSD has a bug where reading this
-symlink sometimes returns an incorrect value
+perl sets C<$^X> where possible to a full path by asking the operating
+system. On FreeBSD the full path of the perl interpreter is found by using
+C<sysctl> with C<KERN_PROC_PATHNAME> if that is supported, else by reading
+the symlink F</proc/curproc/file>. FreeBSD 7 and earlier has a bug where
+either approach sometimes returns an incorrect value
(see http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 ).
In these cases perl will fall back to the old behaviour of using C's
argv[0] value for C<$^X>.