package gcc-4.4-base 4.4.7-1ubuntu2: arch-specific README.Debian makes package not co-installable with itself

[Daniel Horn]

[Impact]

The contents of README.Debian.gz are arch-specific (see debbugs #650102). Even though it is Multi-Arch: same, the package gcc-4.4-base can not be co-installed with itself.

The fix is renaming README.Debian to README.Debian.$(DEB_TARGET_ARCH).

[Test Case]

On Precise with amd64 and i386:

# apt-get install -y gcc-4.4-base:amd64 gcc-4.4-base:i386
…
Unpacking replacement gcc-4.4-base ...
dpkg: error processing /var/cache/apt/archives/gcc-4.4-base_4.4.7-1ubuntu2_amd64.deb (--unpack):
 './usr/share/doc/gcc-4.4-base/README.Debian.gz' is different from the same file on the system

[Regression Potential]

May invalidate existing references to the file.

[Workaround]

removing the file that the installer claimed had changed and then rerunning apt-get upgrade fixes the issue for me

[Original Report]

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: gcc-4.4-base 4.4.7-1ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Thu Apr 19 12:19:46 2012
Dependencies:

DuplicateSignature:
 Unpacking replacement gcc-4.4-base ...
 dpkg: error processing /var/cache/apt/archives/gcc-4.4-base_4.4.7-1ubuntu2_amd64.deb (--unpack):
  './usr/share/doc/gcc-4.4-base/README.Debian.gz' is different from the same file on the system
ErrorMessage: './usr/share/doc/gcc-4.4-base/README.Debian.gz' is different from the same file on the system
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
SourcePackage: gcc-4.4
Title: package gcc-4.4-base 4.4.7-1ubuntu2 failed to install/upgrade: './usr/share/doc/gcc-4.4-base/README.Debian.gz' is different from the same file on the system
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel Hartwig (wigs)]

Fixed in 4.4.7-2.