This may change in the future, but works for now. You can also look up a pd-list thread about 6 months ago where Roman was figuring out how to sign his re-package of Pd for netpd distribution.
This won't remove the "unidentified developer" warning but it should run, although I'm not sure how that mechanism transpires within the context of running things within Max. I would suggest having a second system to test this out other than the build system aka build, then copy to the other system and try running it.