Sorry I lied, upgrading my modules from cpan didn't help at all;
it is just that some debug statements I put in to decipher the
problem actually papered it over.
In particular,
1. in DateTime::Event::ICal
previous =>
sub {
...
my @list = $subset->as_list;
print STDERR (__PACKAGE__, " ERROR: empty list\n") and
return undef unless @list;
2. in Set::Infinite::_recurrence function _recurrence
$min2 = $callback_previous->( $min1 );
print STDERR __PACKAGE__, " ERROR: no min2 from
$callback_previous\n" and return $set->new() unless
$min2;
So with those two insertions which also return early, the code
works ok with my RRULE statements.
Those error statements *do* get printed.
So I've got a workaround, but not one I understand; i just found these
points by
printing stack traces from the undefined symbol warnings.
-mda
