The patches fix the following problems:
You can find the patched V5 sources here.
I updated this archive on 27-NOV-2000. In addition to the fixes above, this version contains a better fix for the "-l" (last-record-flag) problem. It can now determine when overflow of the record-length datatype in the mini-header has occurred and prints a warning and quits. It also advises you to use collect to 'filter' the binary collect file causing the trouble using collect -p <old-binary-file> -f <new-binary-file>. This causes collect to unpack each record and then repack it, which has the side-effect that the mini-header record-length is re-written, this time to a datatype large enough to hold it.
I haven't had time to integrate the patches into the V4 sources yet. sorry.