print STDERR "FUNCTION IS ($func)\n";

            print STDERR "(\&is_int) TRUE!\n"
              if &is_int(42, 1);

            print STDERR "(is_int) TRUE!\n"
              if is_int(42, 1);

            print STDERR "(Module::Configurable::is_int) TRUE!\n"
              if Module::Configurable::is_int(42, 1);

            no strict 'refs';
            print STDERR "(\&\$func) TRUE!\n"  # line 137 from output below
              if &$func(42, 1);  # line that's dieing

##</code><code>##

FUNCTION IS (is_int)
(&is_int) TRUE!
(is_int) TRUE!
(Module::Configurable::is_int) TRUE!
not ok 3 - Configure is successful with valid data
#   Failed test 'Configure is successful with valid data'
#   at t/Module-Configurable.t line 49.
# died: Undefined subroutine &Module::Configurable::is_int called at /nfs/pdx/disks/nehalem.pde.077/projects/libraries/Module/blib/lib/Module/Configurable.pm line 137.

##</code><code>##

print STDERR "(\&{\$func}) TRUE!\n"
              if &{'Params::SimpleValidate::'.$func}(42, 1);