$data->{IMPORTS} is dereferenced even when undefined.

[benkasminbullock]

On line 153 of ExtUtils::Mksymlists.pm, there is a dereference of $data->{IMPORTS}:

if (%{$data->{IMPORTS}}) {

This causes an error if $data->{IMPORTS} is not defined:

Can't use an undefined value as a HASH reference at C:/strawberry/perl/lib/ExtUtils/Mksymlists.pm line 153.

I am not sure whether or not this must be defined in order to compile properly. If not, I would suggest altering it to

if ($data->{IMPORTS} && %{$data->{IMPORTS}}) {

Similarly for the other use of this function.

[schwern]

It has to be defined and a hash ref for it to work, but too much checking means silently ignoring an error. I'd rather it blew up if somebody passes in IMPORTS => "hargle bargle".

Go with the simple check. Mind patching that up?

[demerphq]

Ive pushed a fix for this.