This is a warning being emitted by p5p as of perl 5.11 to get people to
stop doing use UNIVERSAL;
This thread explains why it was done.
http://www.nntp.perl.org/group/perl.perl5.porters/2009/01/msg1437
70.html
This patch should correct the problem and as I understand it is 100%
backwards compatible since it wasn't supposed to have been done to
begin with. I have run the test suite under 5.12.0-RC0 and this corrects
the problem.
diff --git a/lib/IPC/Run.pm b/lib/IPC/Run.pm
index 1cb12d0..2f9dd50 100644
--- a/lib/IPC/Run.pm
+++ b/lib/IPC/Run.pm
@@ -1053,7 +1053,6 @@ use File::Spec ();
use IO::Handle;
require IPC::Run::IO;
require IPC::Run::Timer;
-use UNIVERSAL ();
use constant Win32_MODE => $^O =~ /os2|Win32/i;
diff --git a/lib/IPC/Run/Debug.pm b/lib/IPC/Run/Debug.pm
index d459f36..71820f9 100644
--- a/lib/IPC/Run/Debug.pm
+++ b/lib/IPC/Run/Debug.pm
@@ -118,7 +118,6 @@ sub _debugging_not_optimized() { 0 }
STUBS
use POSIX;
-use UNIVERSAL qw( isa );
sub _map_fds {
my $map = '';
diff --git a/lib/IPC/Run/IO.pm b/lib/IPC/Run/IO.pm
index 26e5ec8..1c658d9 100644
--- a/lib/IPC/Run/IO.pm
+++ b/lib/IPC/Run/IO.pm
@@ -76,7 +76,6 @@ use strict;
use Carp;
use Fcntl;
use Symbol;
-use UNIVERSAL ();
use IPC::Run::Debug;
use IPC::Run qw( Win32_MODE );
