I've extracted the two .deb files and compared the results. The only different file between the two (with the same name and path) is indeed src.zip. Extracting the two src.zip files and comparing the result with 'diff -rq' shows no differences, but examining the directory listings shows different timestamps; that file contains three RTF files (apparently API documentation, et cetera, not actual source), and they're timestamped four minutes apart, on the date of the automated binNMU rebuild carried out on the buildd.
Similar timestamp differences exist in other files in the two .debs. I'm guessing that perhaps the necessary differences in the ZIP file to record the different timestamps are what is causing this failure. Comparing the two ZIP files with vbindiff shows a total of six bytes different, scattered across the file; they are all a change between 0xA3 and 0x25. If each file's timestamp is recorded in two places in the file, that could fit with these being timestamps; I'm not sure how a difference of four minutes could result in a timestamp difference of 0x7E (126), but I can imagine I just haven't thought it through all the way. Do the files in these two ZIPs really need to be compressed? If so, is there a way to generate the files differently so that they don't get different timestamps? If not, is there a way to do the compression differently such that the timestamps don't get recorded in the compressed file? /usr/share/doc/liblcms2-dev/changelog.Debian.amd64.gz contains only one entry, that from this most recent binNMU; I suspect that the analogous i386 version would be the same. I'm guessing that this type of mismatch would happen any time this package in its current form gets built on the buildds (as I believe is now required, with the change to source-only uploads?), and that this is simply the first time such a thing has happened. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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