X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fbase.pm;h=d8baa95d0a1063f4ca5ea69d44da78030ce1c5fe;hb=99ffb1cb9ad68572b442d79446caa8bcbb2964fc;hp=9c2135bfb6b4e6bbf8fbfa3bc59b1bc5c50ab266;hpb=3c4b39bee8832007b7e91bfce8701d34cacab411;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/lib/base.pm b/lib/base.pm
index 9c2135b..d8baa95 100644
--- a/lib/base.pm
+++ b/lib/base.pm
@@ -2,7 +2,7 @@ package base;
 
 use strict 'vars';
 use vars qw($VERSION);
-$VERSION = '2.07';
+$VERSION = '2.08';
 
 # constant.pm is slow
 sub SUCCESS () { 1 }
@@ -71,6 +71,10 @@ sub import {
     my $inheritor = caller(0);
 
     foreach my $base (@_) {
+        if ( $inheritor eq $base ) {
+            warn "Class '$inheritor' tried to inherit from itself\n";
+        }
+
         next if $inheritor->isa($base);
 
         if (has_version($base)) {
@@ -212,6 +216,12 @@ found in your path.
 
 This module was introduced with Perl 5.004_04.
 
+Attempting to inherit from yourself generates a warning:
+
+ use Foo;
+ use base 'Foo';
+
+ # Class 'Foo' tried to inherit from itself
 
 =head1 CAVEATS