===> Applying FreeBSD patches for jam-2.5_2 No file to patch. Skipping... 1 out of 1 hunks ignored--saving rejects to Jamfile.rej => Patch patch-Jamfile failed to apply cleanly.
Thanks for the submission. The port has no maintainer. Would you be willing to take a look and submit a patch?
Assign to committer that resolved (NO_WRKSUBDIR=yes?). This port is currently packaging per portsmon: http://portsmon.freebsd.org/portoverview.py?category=devel&portname=jam