I looked at the Makefile and I made what I thought should correct the issue. I then reran make and received the following error:

C:\Users\barry\Downloads\DBD-Pg-3.10.3>make
process_begin: CreateProcess((null), rem, ...) failed.
make (e=2): The system cannot find the file specified.
make: *** [blibdirs] Error 2
[download]