Please excuse me if the question is strange, but is there a version of libpd compatible with 64bit Windows?

I was planning to collaborate with someone to make a game that replaces Unity's audio engine with libPD using one of these plug-ins: https://github.com/Magicolo/uPD or https://github.com/patricksebastien/libpd4unity . The problem with these plugins seemed to be that the code was made for Unity 4 and not compatible with Unity 5. However, my collaborator, who was trying to debug it, said that libPD needed to be recompiled for 64-bit Windows. I'm not collaborating with that person at the moment as his schedule's become unexpectedly busy, but I would like to know how I can approach other programmer's and what tools/resources I can offer them.

Thanks in advance for any information and suggestions.