As of version 1.65 of man-pages, the upstream project this package is based on, manual pages from the POSIX standard are included. The man-pages project is permitted to distribute them and Andries Brouwer assumes that re-distribution by vendors is permitted as well. However, modification is definitively not allowed, hence this great contribution by The Institute of Electrical and Electronics Engineers and The Open Group (see <http://linuxpr.com/releases/6599.html>) render the entire man-pages package non-free. It would have been a better idea to distribute POSIX manpages in a separate file if at all, so that free and non-free components aren't mixed and non-free components don't get a chance to contaminate the free manpages packages. Hence, the file manpages*.orig.tar.gz is no longer exactly the pristine upstream source tarball as one would expect, since that would render that all manpages resulting manpages packages non-free. Instead it is the upstream file with the file POSIX-COPYRIGHT and the directories man0p, man1p and man3p removed, so that only the usual free components are included. Francesco Paolo Lovergine <frankie@debian.org> has packaged the non-free POSIX manpages as manpages-posix which are distributed by the Debian project in the non-free archive.