You can clone with
HTTPS or Subversion.
(but at least it is not stuck, thanks for fixing that)
You could indicated that the OS is not supported in the Makefile.PL already
or you could SKIP the tests on Windows if the module is partially usable there too.
I'd rather not reject windows in the Makefile.PL in case support is ever added. The lack of support is in the prerequisites, not this module itself.
This is fixed in 0.69, which passes the test suite on MSWin32