--- Makefile.PL.orig    2007-01-17 09:28:20.000000000 +0200
+++ Makefile.PL 2007-01-17 10:02:15.000000000 +0200
@@ -76,6 +76,16 @@
         }
     }

+    if ($ENV{PERL5LIB} || $ENV{PERLLIB}) {
+        warn <<'.';
+*** You have extra Perl library paths set in your environment. Please note
+    that these paths (set with PERL5LIB or PERLLIB) are not honored by perl
+    when running under taint mode, which may lead to problems. This is a
+    limitation (by design) of Perl, not of PAR::Packer; but some of the
+    problems may manifest here during installation.
+.
+    }
+
     my @bin = ("script/parl$exe", "myldr/par$exe");
     push @bin, ("script/parldyn$exe", "myldr/static$exe") if $dynperl;