To avoid freeness issues etc., I would be very happy if there were a variant of the Pike source tarball without bundled libraries.
Well, I can make a second "unbundled" package as part of the uploading process to pelix since I have that scripted now anyway. Could you check if just removing the bundles directly works?
In any case, why is there both a libffi-3.0.4.tar.gz and its unpacked contents?
That missfeature in bin/export.pike has been fixed now.