[rt.cpan.org #67320] Win32::API Callback won't install

[Cosimo Streppone via RT]

<URL: https://rt.cpan.org/Ticket/Display.html?id=67320 >

I was too quick on that one.

Here's the (reversed) patch that will allow compilation of 
Win32::API::Callback on 64 bit builds:

https://github.com/cosimo/perl5-win32-api/
commit/7bc695d94f98566d3ad90ec53b3d978935495e94

so, it needs changes to Callback/Makefile.PL too, not just Makefile.PL.
Sorry for the confusion.