Package: debhelper Version: 9.20151220 Severity: serious It looks like https://anonscm.debian.org/cgit/debhelper/debhelper.git/commit/?id=1bd369cc52115fd179a46d6f8d9af6e9f126ffa8
broke dh_installmanpages, which has @allpackages=getpackages(''); The new code handles a missing argument but not an empty one. + my ($type) = @_; + $type //= 'both'; This made at least four packages FTBFS, see #808592 #808590 #808589 #808588 dh_installmanpages dh_installmanpages: This program is deprecated, switch to dh_installman. dh_installmanpages: getpackages: First argument must be one of "arch", "indep" or "both" debian/rules:35: recipe for target 'binary-arch' failed Not sure which side to fix so I'm leaving it to you. codesearch.debian.net reports no other hits for getpackages("") or getpackages('') FWIW. -- Niko Tyni nt...@debian.org