[Bug 1512992] Re: package zlib1g-dev 1:1.2.8.dfsg-2ubuntu4 failed to install/upgrade: trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also in package lib32z1-dev 1:1.2.8.dfsg-2ubuntu4

[Robie Basak]

@Fathi

Sorry for the delay. It was caused by nobody affected coming forward to
verify the proposed fixes as requested in comments 13 and 14. As Andreas
has kindly stepped in to verify the fixes, I can now release the fixes
to the updates pockets.

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Title:
  package zlib1g-dev 1:1.2.8.dfsg-2ubuntu4 failed to install/upgrade:
  trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is
  also in package lib32z1-dev 1:1.2.8.dfsg-2ubuntu4

Status in One Hundred Papercuts:
  Confirmed
Status in zlib package in Ubuntu:
  Fix Released
Status in zlib source package in Xenial:
  Fix Released
Status in zlib source package in Yakkety:
  Fix Released

Bug description:
  Test Case
  ---------
  1) Install zlib1g-dev:i386 
  2) Install lib32z1-dev.
  3) Observe a package installation failure

  After enabling -proposed you should be able to install both packages
  without an issue.

  Original Description
  --------------------

  The package did not install when I did a fresh install of 15.10.

  ProblemType: PackageDistroRelease: Ubuntu 15.10
  Package: zlib1g-dev 1:1.2.8.dfsg-2ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  Date: Wed Nov  4 10:36:43 2015
  DuplicateSignature: package:zlib1g-dev:1:1.2.8.dfsg-2ubuntu4:trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also in package lib32z1-dev 1:1.2.8.dfsg-2ubuntu4
  ErrorMessage: trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also in package lib32z1-dev 1:1.2.8.dfsg-2ubuntu4
  InstallationDate: Installed on 2015-11-04 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  RelatedPackageVersions:
   dpkg 1.18.2ubuntu5
   apt  1.0.10.2ubuntu1SourcePackage: zlib
  Title: package zlib1g-dev 1:1.2.8.dfsg-2ubuntu4 failed to install/upgrade: trying to overwrite '/usr/include/i386-linux-gnu/zconf.h', which is also in package lib32z1-dev 1:1.2.8.dfsg-2ubuntu4
  UpgradeStatus: No upgrade log present (probably fresh install)

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