[Python-modules-team] Bug#839366: pysvn: FTBFS: unsatisfiable build-dependencies: python-cxx-dev (< 6.2.7), python3-cxx-dev (< 6.2.7)

[Lucas Nussbaum]

Source: pysvn
Version: 1.8.0-2
Severity: serious
Tags: stretch sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20160930 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
> +------------------------------------------------------------------------------+
> | Install package build dependencies                                           |
> +------------------------------------------------------------------------------+
> 
> 
> Setup apt archive
> -----------------
> 
> Merged Build-Depends: debhelper (>= 9), dh-python, libapr1-dev, libaprutil1-dev, libneon27-gnutls-dev, libsvn-dev (>= 1.8.10), python-all-dbg, python-all-dev (>= 2.7.8), python-cxx-dev (<< 6.2.7), python-setuptools, python3-all (>= 3.4.2), python3-all-dev (>= 3.4.2), python3-setuptools (>= 5.5.1), python3-cxx-dev (<< 6.2.7), subversion (>= 1.8.10)
> Filtered Build-Depends: debhelper (>= 9), dh-python, libapr1-dev, libaprutil1-dev, libneon27-gnutls-dev, libsvn-dev (>= 1.8.10), python-all-dbg, python-all-dev (>= 2.7.8), python-cxx-dev (<< 6.2.7), python-setuptools, python3-all (>= 3.4.2), python3-all-dev (>= 3.4.2), python3-setuptools (>= 5.5.1), python3-cxx-dev (<< 6.2.7), subversion (>= 1.8.10)
> dpkg-deb: building package 'sbuild-build-depends-pysvn-dummy' in '/<<BUILDDIR>>/resolver-T8ycuP/apt_archive/sbuild-build-depends-pysvn-dummy.deb'.
> dpkg-scanpackages: warning: Packages in archive but missing from override file:
> dpkg-scanpackages: warning:   sbuild-build-depends-pysvn-dummy
> dpkg-scanpackages: info: Wrote 1 entries to output Packages file.
> Ign:1 copy:/<<BUILDDIR>>/resolver-T8ycuP/apt_archive ./ InRelease
> Get:2 copy:/<<BUILDDIR>>/resolver-T8ycuP/apt_archive ./ Release [957 B]
> Ign:3 copy:/<<BUILDDIR>>/resolver-T8ycuP/apt_archive ./ Release.gpg
> Get:4 copy:/<<BUILDDIR>>/resolver-T8ycuP/apt_archive ./ Sources [461 B]
> Get:5 copy:/<<BUILDDIR>>/resolver-T8ycuP/apt_archive ./ Packages [550 B]
> Fetched 1968 B in 0s (0 B/s)
> Reading package lists...
> W: No sandbox user '_apt' on the system, can not drop privileges
> Reading package lists...
> 
> Install pysvn build dependencies (apt-based resolver)
> -----------------------------------------------------
> 
> Installing build dependencies
> Reading package lists...
> Building dependency tree...
> Reading state information...
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> 
> The following packages have unmet dependencies:
>  sbuild-build-depends-pysvn-dummy : Depends: python-cxx-dev (< 6.2.7) but it is not going to be installed
>                                     Depends: python3-cxx-dev (< 6.2.7) but it is not going to be installed
> E: Unable to correct problems, you have held broken packages.
> apt-get failed.

The full build log is available from:
   http://aws-logs.debian.net/2016/09/30/pysvn_1.8.0-2_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.