On Sun, Nov 27, 2016 at 06:39:22PM +0200, Sami Liedes wrote: > It seems to me that Mark is saying that this is not even supposed to > work with lib32z1-dev installed, but rather you should have > zlib1g-dev:i386 installed (and not doing so is user error).
Right, that's now the expected way for users to get an i386 version on amd64. > I found this surprising (and wonder what lib32z1-dev is actually for > then), but as I don't know how these packages are supposed to work, I > won't take a position. I am happy enough that I got things working by > installing zlib1g-dev:i386. In the past before Debian supported coinstallation of packages from multiple architectures on one system (multiarch) some packages like zlib were built specially to provide binaries for one architecture in packages for another architecture (so lib32z1 is a 32 bit version of zlib built as a package for a 64 bit architecture for example). This was called multilib and the goal has been to phase it out in favour of using multiarch. It appears that there have been changes in the toolchain that mean that broke the multilib packages (I'm guessing that it was some of the multiarch implementation) but given the availability of multiarch which supports all libraries rather than just ones that have been specially built people should be using that instead. There are some cases where the infrastructure isn't able to cope yet which may be what's going on here but they definitely don't apply to end users.
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