I came up with the following: 
my @prereq = qw(DBI DBIx::AnyDBD);

  for my $prereq (@prereq) {

    eval "use $prereq" ;

    die "\nPlease install $prereq before installing DBSchema::Sample" 
+if ($@) ;
    my $v = "\$${prereq}::VERSION";  # LINE 115
    my $v2 = eval $v;
    print "Found $prereq version $v2\n" ; # LINE 117

  }

[download]
The problem is that Perl tries to interpolate the variable VERSION in package prereq in line 115 of your code. As long as there is no prereq package, $v will be empty; you'll get another warning on line 117, because your eval in line 116 also returns an empty string.
Hope this helped.
CombatSquirrel.
Entropy is the tendency of everything going to hell.

In reply to Re: eliminating warnings with conditional uses by CombatSquirrel
in thread eliminating warnings with conditional uses by princepawn

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