On 2026-03-01 at 11:22, Tim Woodall wrote: > How should you construct a dsc for backports that depends on other > backports packages?
I'm not particularly familiar with this, but I do notice one thing that may be relevant. > Build-Depends: debhelper (>= 9), libncurses-dev, automake, libtool, autoconf, > comerr-dev (>= 2.1-1.43.3-1~bpo8+1), e2fslibs-dev (>= 1.43.3-1~bpo8+1), > libblkid-dev, libbz2-dev, liblzo2-dev, libdevmapper-dev, libreadline-dev, > libselinux1-dev, pkg-config, uuid-dev, zlib > > E: Build-Depends dependency for dump cannot be satisfied because candidate > version of package e2fslibs-dev can't satisfy version requirements > E: Build-Depends dependency for dump cannot be satisfied because candidate > version of package comerr-dev can't satisfy version requirements > > Is there any way to do this just from the control file without pinning? > > The versions are available, just not "candidate versions" > > comerr-dev: > Installed: (none) > Candidate: 2.1-1.42.12-2+deb8u2 > Version table: > 2.1-1.43.3-1~bpo8+1 0 > 100 http://archive.debian.org/debian/ jessie-backports/main amd64 > Packages > 2.1-1.42.12-2+deb8u2 0 > 500 http://archive.debian.org/debian-security/ jessie/updates/main > amd64 Packages > 2.1-1.42.12-2+b1 0 > 500 http://archive.debian.org/debian/ jessie/main amd64 Packages > e2fslibs-dev: > Installed: (none) > Candidate: 1.42.12-2+deb8u2 > Version table: > 1.43.3-1~bpo8+1 0 > 100 http://archive.debian.org/debian/ jessie-backports/main amd64 > Packages > 1.42.12-2+deb8u2 0 > 500 http://archive.debian.org/debian-security/ jessie/updates/main > amd64 Packages > 1.42.12-2+b1 0 > 500 http://archive.debian.org/debian/ jessie/main amd64 Packages The jessie-backports entries here have a priority of 100, where the other entries have a priority of 500. It seems plausible at a glance that this might cause the system to decide that, since there is a version available at a higher priority, any version available at a lower priority will not be considered as a candidate for installation. It might be worth temporarily adjusting the priority of jessie-backports to see whether that affects the results you get from this. -- 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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