Avoid "Use of uninitialized value $base" for the CPANPLUS .hidden file

1 files changed, 4 insertions, 1 deletions

diff --git a/Porting/check83.pl b/Porting/check83.pl
index 56989fa9e0..1bd863f46e 100644
--- a/Porting/check83.pl
+++ b/Porting/check83.pl
@@ -20,13 +20,16 @@ my $maxl = 30; # make up a limit for a maximum filename length
 
 sub eight_dot_three {
     return () if $seen{$_[0]}++;
-    my ($dir, $base, $ext) = ($_[0] =~ m{^(?:(.+)/)?([^/.]+)(?:\.([^/.]+))?$});
+    my ($dir, $base, $ext) = ($_[0] =~ m{^(?:(.+)/)?([^/.]*)(?:\.([^/.]+))?$});
     my $file = $base . ( defined $ext ? ".$ext" : "" );
     $base = substr($base, 0, 8);
     $ext  = substr($ext,  0, 3) if defined $ext;
     if (defined $dir && $dir =~ /\./)  {
 	print "directory name contains '.': $dir\n";
     }
+    if ($base eq "") {
+	print "filename starts with dot: $_[0]\n";
+    }
     if ($file =~ /[^A-Za-z0-9\._-]/) {
 	print "filename contains non-portable characters: $_[0]\n";
     }