Thank for your post, when I understand it correctly I would recommend the use of eval in a destructor as not so good practice. But the handler in general are not the problem. The code runs without a exception and no handler is called. What I dislike is the warning. I found a way to reproduce the warning (a local $@), but I have no idea where this happend in the program. Here is a longer code snippet which reproduces the warnings: 
use warnings;use strict;

package What::Ever;

$@=undef;

$SIG{'__DIE__'} = sub { die "My global die: $@" }

; sub divide { 
  local $SIG{'__DIE__'} = sub { die $@ };
  eval { 
     print STDERR 1/$_[0] , "\n";
  }
}

; { local $@; 
    print STDERR "No exception:\n";
    divide(1);
    print STDERR "Throw...\n";
    divide(0);    
  };

warn $@; # with this the warnings are shown // without none

[download]
but this produces the warning in 5.8 too. So I do not really know what introduces the real problem.

In reply to Re^2: 5.10 shows uninitialized $@ warning by pmSwim
in thread 5.10 shows uninitialized $@ warning by pmSwim

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