It's neither-nor, and protect against the impossible.

p4raw-id: //depot/perl@13055

diff --git a/lib/Thread.pm b/lib/Thread.pm
index 3aa6162..fc39769 100644 (file)
--- a/lib/Thread.pm
+++ b/lib/Thread.pm
@@ -313,6 +313,10 @@ sub unimplement {
 
 BEGIN {
     if ($ithreads) {
+       if ($othreads) {
+           require Carp;
+           Carp::croak("This Perl has both ithreads and 5005threads (serious malconfiguration)");
+       }
        XSLoader::load 'threads';
        for my $m (qw(new join detach yield self tid equal)) {
            no strict 'refs';
@@ -330,7 +334,7 @@ BEGIN {
        unimplement(qw(unlock));
     } else {
        require Carp;
-       Carp::croak("This Perl has neither ithreads not 5005threads");
+       Carp::croak("This Perl has neither ithreads nor 5005threads");
     }
 }